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Chang, Shen. "Multimedia versus print in facilitating audience learning." HKBU Institutional Repository, 2010. https://repository.hkbu.edu.hk/etd_ra/1169.
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Chen, Howard. "AZIP, audio compression system: Research on audio compression, comparison of psychoacoustic principles and genetic algorithms." CSUSB ScholarWorks, 2005. https://scholarworks.lib.csusb.edu/etd-project/2617.
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The purpose of this project is to investigate the differences between psychoacoustic principles and genetic algorithms (GA0). These will be discussed separately. The review will also compare the compression ratio and the quality of the decompressed files decoded by these two methods.
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Imeokparia, Timothy Oserejenoria. "The design, implementation, and evaluation of an interactive multimedia environmental design research information system architectural design review as case study /." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1119510445.
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Thesis (Ph. D.)--Ohio State University, 2005.Title from first page of PDF file. Document formatted into pages; contains xiv, 184 p.; also includes graphics. Includes bibliographical references (p. 153-184). Available online via OhioLINK's ETD Center
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Bava, Saliha. "Transforming Performances: An Intern-Reseacher's Hypertextual Journey in a Postmodern Community." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/25951.
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I present the dissertation web as a montage of a postmodern inquiry of my doctoral internship and research experiences—concerns and jubilation—positioned within the discourses of postmodern, dissertation, academia, experimentalism and cyberspace innovations among others. I create a social constructionistic interactive interplay, using hypertext, among my various voices of an intern, a researcher and a person.
In the dissertation web—my inquiry—I practice the characterization of postmodernism on numerous fronts—subject of study, context of study, methodology and re-presentation of the inquiry. Implicitly and explicitly, I articulate the various characterizations of postmodernism in my inquiry by challenging the traditional research practices (metanarratives). I challenge the traditional praxis by alternate performances of research practices such as studying myself in a cultural context of an internship using the methodology of autoethnography and performance.
The hypertext docuverse is a further characterization of postmodernism in the styles and structures that are used for re-presentation of the narratives. The styles of narration I useâ such as words and graphics, prose and poetry, first person conversational texts, narratives and collages—blur the boundary of "academic" writing, literature, and art.
The hypertext is intended as a metaphorical experiential, intertextual journey of an intern and a researcher. Rather than a fixed structure, I create numerous structures of possible structures to privilege the readers' navigational choices. I anticipate that the reader's choices in the virtual space might create a sense of meaning-transformation as one traverses through the dissertation web, thus, valuing fragmentation and connection as aspects of sense-making, which are contextualized (among others) by the reader's meaning frames and my hypertextual performances.
The dissertation is submitted in three formats—exclusive dissertation web.pdf, intertextual dissertation web.pdf, and xml version. The exclusive dissertation web.pdf is a web capture in pdf format of all the "files" that compose the dissertation web created in html. The intertextual dissertation web.pdf is a web capture of my dissertation along with the capture of external web resources that contextualize my dissertation web, thus illustrating the intertextuality of hypertexts by making the dissertation part of the larger textual web.
Due to the web capture, the "docuverse" is nonlinear and the pages do not follow any particular or author predefined sequences. So, please use the internal links or the bookmarks to read or browse the dissertation web rather than scroll from the first "page" to the last "page" of the pdf formatted docuverse. The third version in xml will be made available at a later date. An html version of the dissertation is available directly from the researcher-author.
CAUTION! The links from the abstract may be broken due to archiving of the dissertation web.Ph. D.
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Mohd, Yusof Zatun Najahah. "The role of university-industry-government relationship in cluster development : the case of MSC Malaysia." Thesis, University of Stirling, 2013. http://hdl.handle.net/1893/20387.
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Malaysia is a transition economic country that aims to be a developed country by 2020. In realising this mission (Vision 2020), the cluster concept has been an interest and adopted by the central authorities. There are few years ahead to reach the targeted year and it interest of this study to investigate the relevant development on its own engineered cluster of the Multimedia Super Corridor (MSC) that was put forward on the success of Silicon Valley in the US. This thesis focuses on the development of the MSC cluster in the Malaysia context. It examines and measures the state of the cluster, the role played by its core actors (from Triple Helix perspective) and their relationship in the MSC. The role of collaboration has been used to measure the relationship among actors with the key determinants of cluster formation. A mixed data collection method was used to answer the research question and objectives involved. A conceptual model for analysing the MSC cluster is proposed, bringing together insights from the literature on clusters, role of actors, collaborative relationship and the complex systems of innovation approach. This conceptual model uncover the weaknesses of social dimension (social infrastructure) in Porter’s diamond model and the general approach of Triple Helix model in the cluster development. The cluster lifecycle model is used to add the depth to the analysis on the condition of cluster development.
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Xiong, Guo-Jun, and 郭俊雄. "Research and Implementation on DAB Multimedia Services Transmission Systems." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/33815698755576054061.
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碩士南台科技大學
電子工程系
93
Nowadays, various kinds of media transmission systems have been developed rapidly. Thus, a higher quality of received information is requested and a diversity of services is also demanded. In general, the AM or FM radio systems convey audio services only, but they do not provide the multimedia services. The Digital Audio Broadcasting (DAB) system employs the digital communication technologies to improve the shortage of the traditional radio systems. Besides providing a CD-quality audio service, the DAB system has many advantages compared with the AM or FM radio systems, for example, achieving a signal frequency network and providing a good ability of against the severe multi-path effects. The DAB system can convey six high-quality stereo programs and/or multimedia (image, picture, text, and data) services at a data rate of 1.5 M bits/sec. As the DAB technology being developed and the deployment of DAB services, the broadcasting is going to be led to the new era of multi-services. In this thesis, we focus on the transmission and receiving model analyses for the DAB multimedia services. We also build up a DAB receiving platform. In the transmitter side, an application software is designed which can encode the DAB multimedia data. We employ the Philips PDE452 to transmit images and texts. The developed DAB multimedia receiver can receive and decode the incoming images and texts and then send these data to a PC through a RS232 interface. In the PC, these data are decoded and displayed. The functions of our DAB transmission and receiving system have been verified by receiving BCC DAB multimedia (audio, text and image) services.
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Lin, Jau-Shyan, and 林昭賢. "Research on Real-time Multimedia Tools of CSCW Systems." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/46970038102089223447.
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碩士中原大學
資訊工程研究所
83
In this thesis, we model and implement a set of real-time multimedia tools (RMTs) in Computer Supported Cooperative Work (CSCW) system. RMT is an abstract model for real-time multimedia transmission in CSCW system, it can be applied to real-time work, including text and audio transmission. The characteristics of cooperation in CSCW system are analyzed and summarized to design the real-time multimedia tools. For the cooperative characteristics of CSCW systems, the real-time requirement of multimedia transmission is indispensable. This thesis considers the properties of both local area network (LAN) and wide area network (WAN), and refers to client/server model to design our RMT manager model in the network architecture. We propose a new real-time data replication method, called pouring method, with which the replication speed of real-time multimedia data can be greatly increased. Besides, this model constitutes floor control and interprocess communication (IPC). By the mechanism provided by RMT manager model, the functions of the multimedia tools can be easily designed to meet the requirement of the real-time CSCW systems. Finally, we implement a prototype of Group Decision Support Conference System (GDSCS). With this experimental system, the RMT manager model are utilized well to prove its advantages in realizing real-time CSCW systems.
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Jang, Sheau-Dong, and 張曉東. "The use and audience research of interactive multimedia tours guide systems in museums." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/73566390010263855334.
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Ghane, Parisa. "Silent speech recognition in EEG-based brain computer interface." Thesis, 2015. http://hdl.handle.net/1805/9886.
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Indiana University-Purdue University Indianapolis (IUPUI)A Brain Computer Interface (BCI) is a hardware and software system that establishes direct communication between human brain and the environment. In a BCI system, brain messages pass through wires and external computers instead of the normal pathway of nerves and muscles. General work ow in all BCIs is to measure brain activities, process and then convert them into an output readable for a computer. The measurement of electrical activities in different parts of the brain is called electroencephalography (EEG). There are lots of sensor technologies with different number of electrodes to record brain activities along the scalp. Each of these electrodes captures a weighted sum of activities of all neurons in the area around that electrode. In order to establish a BCI system, it is needed to set a bunch of electrodes on scalp, and a tool to send the signals to a computer for training a system that can find the important information, extract them from the raw signal, and use them to recognize the user's intention. After all, a control signal should be generated based on the application. This thesis describes the step by step training and testing a BCI system that can be used for a person who has lost speaking skills through an accident or surgery, but still has healthy brain tissues. The goal is to establish an algorithm, which recognizes different vowels from EEG signals. It considers a bandpass filter to remove signals' noise and artifacts, periodogram for feature extraction, and Support Vector Machine (SVM) for classification.
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Phadke, Aboli Manas. "Designing and experimenting with e-DTS 3.0." Thesis, 2014. http://hdl.handle.net/1805/4932.
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Indiana University-Purdue University Indianapolis (IUPUI)With the advances in embedded technology and the omnipresence of smartphones, tracking systems do not need to be confined to a specific tracking environment. By introducing mobile devices into a tracking system, we can leverage their mobility and the availability of multiple sensors such as camera, Wi-Fi, Bluetooth and Inertial sensors. This thesis proposes to improve the existing tracking systems, enhanced Distributed Tracking System (e-DTS 2.0) [19] and enhanced Distributed Object Tracking System (eDOTS)[26], in the form of e-DTS 3.0 and provides an empirical analysis of these improvements. The enhancements proposed are to introduce Android-based mobile devices into the tracking system, to use multiple sensors on the mobile devices such as the camera, the Wi-Fi and Bluetooth sensors and inertial sensors and to utilize possible resources that may be available in the environment to make the tracking opportunistic. This thesis empirically validates the proposed enhancements through the experiments carried out on a prototype of e-DTS 3.0.
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Su, Lung Fu, and 蘇龍福. "Research on QTI Multimedia Item Bank System." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/68243626919807579600.
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碩士國立臺灣師範大學
資訊教育學系
95
In recent years, with the rapid development of the Internet techniques, the usage of on-line exam system for facilitating the qualifying exam and the e-learning is growing more and more popular. However, most of the current on-line exam systems are lacking of variety and interaction with the examinees, and the interflow of examination questions between each system is not smooth enough. With a view to sharing and re-utilizing all these questions better, IMS Global Learning Consortium proposes the standard of QTI（Question and Test Interoperability）, accommodating each system with the effective exchange of examination questions, but the exam pattern provided by QTI is still on the basis of monotonous description without the application of the multimedia and the idea of interaction to the design of questions. In order to solve problems mentioned above, this research seeks to combine the standard of QTI 2.0 with SVG（Scalable Vector Graphics）with a view to developing the neo-multimedia interactive question pattern with the variety of exam platform, the diversity of question situations, and the rich interaction between the examinees and the exam platform. For the management of question database, this research adopts native XML database and the classifying searching mode and the XQuery/XPath will also be used to realize the searching system. To accurately estimate the potential of the examinees, this research applies the item response theory to the test and evaluation analysis. The result is also analyzed, according to the three-parameter model, to generate the test characteristic curve of the examinees.
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Hong, Yu-Ying, and 洪郁盈. "The Research and Implementation of VoIP Multimedia System." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/7xbrx9.
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碩士國立臺北科技大學
電機工程系研究所
99
The VoIP-based multimedia system is researched and implemented in this thesis. The multimedia contents are transformed into VoIP-based services firstly. Then the user can easily access these services via the endpoint device of VoIP, PSTN, or mobile system. These multimedia contents include TV, IPTV, FM radio, media files, music files, … etc. The SIP and RTP protocols are employed to make those multimedia contents become available for VoIP, PSTN, and Mobile user. This system contains several features： 1. Users can easily access these multimedia contents by call-setup process. 2. The TCP-based ASF streaming is converted into UDP-based RTP streaming. 3. This system is designed with C++. Moreover, the ADO and PHP are used to design the UI system.
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Huang, Zan-Yan, and 黃展彥. "Multimedia Touring System with Location-Based Services Research." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/34791650335487128310.
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碩士僑光科技大學
資訊科技研究所
103
Nearly those years, Local Based Service has been discussed and research many times by tourism’s boost up. Many industries also got some benefit from this. In addition the service will easier, faster and simple by information technology and many devices. In our research, we will use the Google map with bird view technology including multimedia to make a tour guide system. This system use the video voice and visualizing interface to guide or plan and design the tourism smoothly. Our research will point to the background parameter design and how to use the panorama and multimedia data to combine the Google map. This parameter can use into many place we hope so. We make the different between the Google map is the multimedia in our research. It’s not only a picture who can see it, but an interactive media who play it. This can make user plan the tourism and be a good tour guide. We also hope our research can put in the logistic, cash flow and use at measure and environment estimate.
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Zhu, Jihai. "Low-complexity block dividing coding method for image compression using wavelets : a thesis presented in partial fulfillment of the requirements for the degree of Master of Engineering in Computer Systems Engineering at Massey University, Palmerston North, New Zealand." 2007. http://hdl.handle.net/10179/704.
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Image coding plays a key role in multimedia signal processing and communications. JPEG2000 is the latest image coding standard, it uses the EBCOT (Embedded Block Coding with Optimal Truncation) algorithm. The EBCOT exhibits excellent compression performance, but with high complexity. The need to reduce this complexity but maintain similar performance to EBCOT has inspired a significant amount of research activity in the image coding community. Within the development of image compression techniques based on wavelet transforms, the EZW (Embedded Zerotree Wavelet) and the SPIHT (Set Partitioning in Hierarchical Trees) have played an important role. The EZW algorithm was the first breakthrough in wavelet based image coding. The SPIHT algorithm achieves similar performance to EBCOT, but with fewer features. The other very important algorithm is SBHP (Sub-band Block Hierarchical Partitioning), which attracted significant investigation during the JPEG2000 development process. In this thesis, the history of the development of wavelet transform is reviewed, and a discussion is presented on the implementation issues for wavelet transforms. The above mentioned four main coding methods for image compression using wavelet transforms are studied in detail. More importantly the factors that affect coding efficiency are identified. The main contribution of this research is the introduction of a new low-complexity coding algorithm for image compression based on wavelet transforms. The algorithm is based on block dividing coding (BDC) with an optimised packet assembly. Our extensive simulation results show that the proposed algorithm outperforms JPEG2000 in lossless coding, even though it still leaves a narrow gap in lossy coding situations
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Chen, Shyan-Jia, and 陳咸嘉. "Channel CODEC Research for Campus Multimedia Wireless Communication System." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/74889940226968496928.
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YEN, CHAO-LIANG, and 顏兆良. "Using Raspberry Pi in the video multimedia system research." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/gzupt4.
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碩士佛光大學
資訊應用學系
105
As the progress of the times, science and technology change rapidly. People could not live without Computer and Network, There is a new product called IoT (Internet of Things). Let the device connect to the network and provide services. The device features a lightweight and inexpensive appearance that enhances the interaction between the network and the device by machine-to-machine automation. This experiment based on Raspberry Pi 3 equipped with Debian Linux system, using Apache Server, PHP language and MySQL database to build multimedia system and network singing contest voting system. Live broadcast singing competition via multiples Raspberry Pi 3 with camera. Implementation can be used at low cost, but can achieve multimedia system desired effect. In view of the progress of science and technology, the rise of Internet of things and the application of things more and more, so this experiment uses IoT raspberry sent as the theme of the experiment, the use of raspberry faction high CP value, high scalability, Think we must use the high price of the computer will achieve the effect. This study is expected to use raspberry to replace traditional computer research can provide some experimental reference in the future to extend the different practical applications to help you want to use the raspberry pie object. Based on the results of this experiment, it was found that the raspberry faction was able to do the role of the concert in the singing game and used the rugby system to increase the heat of the event, and also used the raspberry faction to let the scene People can also participate in, feel the Internet of things and the application of the network of far-sighted charm.
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Verhaart, Michael Henry. "The virtualMe : a knowledge acquisition framework : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy (Ph.D.) in Information Systems at Massey University, Palmerston North, New Zealand." 2008. http://hdl.handle.net/10179/851.
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Throughout life, we continuously accumulate data, information and knowledge. The ability to recall much of this accumulated knowledge commonly deteriorates with time, though some forms part of what is referred to as tacit knowledge. In the context of education, students access and interact with a teacher’s knowledge in order to create their own, and may have their own data, information and knowledge that could be added to teacher’s knowledge for everyone’s benefit. The realization that students can contribute to enhancing personal knowledge is an important cornerstone in developing a mentor (teacher, tutor and facilitator) focused knowledge system. The research presented in this thesis discusses an integrated framework that manages an individual’s personal data, information and knowledge and enables it to be enhanced by others, in the context of a blended teaching and learning environment. Existing related models, structures, systems and current practices are discussed. The core outcomes of this thesis include: • the virtualMe framework that can be utilized when developing Web based teaching and learning systems; • the sniplet content model that can be used as the basis for sharing information and knowledge; • an annotation framework used to manage knowledge acquisition; and • a multimedia object (MMO) model that: o allows for related media artefacts to be intuitively grouped in a logical collection; o includes a meta-data schema that encompasses other metadata structures, and manages context and referencing; and o includes a model allowing component parts to be reaggregated if they are separated. The virtualMe framework provides the ability to retain context while transferring the content from one person to another and from one place to another. The framework retains the content’s original context and then allows the receiver to customise the content and metadata so that the content becomes that person’s knowledge. A mechanism has been created for such contextual transfer of content (context retained by the metadata).
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Chen, Jun-Jie, and 陳俊傑. "Research on Form Elements System Design for Portable Multimedia Digital Products." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/c52nb8.
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碩士朝陽科技大學
設計研究所
94
The idea of the product and the design is the indispensable technique of designer. Through the external stimulus, designer always designs the creative and valuable products. The application of digital design information has been new utility of knowledge, experience and idea. The objective of this study is to use different kinds of perceptual adjective to capture the shaping element of the portable multimedia digital products, and establish a shaping element integration system for product shaping development stage to support the designer. Designer can rapidly use the system to integrate the appearance of the products. Furthermore, in the formulation stage, designer can understand the image of products via this system. This study is divided into 5 stages. The first stage is the classification and choice of shaping element. Firstly, through the interview with experts, the shaping elements of the 65 types of portable audio-video products found in market are disassembled. The CAD software is used to perform 2D shaping element scanning. By using the shaping analysis approach to form three types of elements: 27 types of whole shaping elements, 28 types of input shaping elements and 22 types of output shaping elements. There are totally 77 types of shaping elements. By using the Focus Team, it will further screen 15 types of whole shaping element, 15 types of input shaping element and 12 types of output shaping element. There will be totally 47 types of shaping elements. In the second stage, it is the collection and choice of perceptual adjective. It will widely collect the 100 groups of perceptual adjective for portable audio-video products. With the subjective preliminary screening, 61 groups are chosen. By using the Method of Semantic differential, the 61 groups of terms are divided into three types: 42 types of appraisal, 11 types of strength and 8 types of action. Through the questionnaire investigation, eight groups have been chosen finally. The third stage is the questionnaire investigation. According to the screened samples from stage one and two, the relationship between shaping element and perceptual adjective is investigated. Stage 4 is the analysis of shaping imagery. From the average of broken-line graph, the difference of one element and the others can be investigated. Stage 5 is the establishment of shaping element system. It accords to the degree value of each element on each perceptual adjective. By using Visual Basic as the system language, the shaping elements can show on the system interface. Besides, from the searching and integration by the users, the several concrete appearances of the products can be obtained. Besides, from the design of element integration system, the accumulation and passing on of design knowledge are shared between experienced and junior designers. Besides, from this kind of training mode designer can rapidly get the requirements and conditions of customers in hand.
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Yan-HanChen and 陳彥翰. "Research of Real-time Smile Detection Applied in Interactive Multimedia System." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/94447136152747334798.
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Lee, Mu-Rong, and 李牧蓉. "The Research of Computer Multimedia On-line Learning and Evaluation System." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/07294808291113549444.
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碩士亞洲大學
資訊工程學系碩士班
94
This study is to investigate how elementary school students use on-line teaching system to study computer information curriculum which is based on multi-media, namely Namo WebEditor 5.5 and PrintMagic 5;and to examine the effect of on-line teaching using on-line test system. Further more, this study analyzes whether there is gender difference between elementary school boys and girls in learning capacity when using on-line teaching system. The participants are 106 forth graders in Nantou County. This study applies the on-line teaching system and on-line test system specifically developed for the study. The statistic tests used include mean standard deviation, z-test and t-test. The major findings of this study are: 1. The on-line teaching system conducted in the study achieves the goal of teaching, improves the academic achievements and saves the time on testing and test evaluating. 2. By using on-line teaching system, elementary school boys learn significantly better than girls. 3. The on-line test system promotes the efficiency of testing and saves the time that teachers spend on scoring test papers.
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Huang, Win-Bin, and 黃文彬. "Researches on Compression, Halftone and Watermark in Multimedia System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/38379450672806353842.
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博士國立成功大學
資訊工程學系碩博士班
97
Recently, high visual quality and efficient compression rate are the most important issues in multimedia compression system. Besides, image authentication and copyright protection become more and more essential in our digital life. Four important topics, wavelet image compression, halftone image processing, the speedup of video compression and image watermarking, in multimedia system are presented in this paper. In the first research, the hardware implementation of a modified efficient SPIHT coder is presented. Set Partitioning in Hierarchical Trees (SPIHT) is a highly efficient technique for compressing Discrete Wavelet Transform (DWT) decomposed images. Though its compression efficiency is a little less famous than Embedded Block Coding with Optimized Truncation (EBCOT) adopted by JPEG2000, SPIHT has a straight forward coding procedure and requires no tables. These make SPIHT the more appropriate algorithm for lower cost hardware implementation. The modifications include a simplification of coefficient scanning process, a 1-D addressing method instead of the original 2-D arrangement of wavelet coefficients, and a fixed memory allocation for the data lists instead of a dynamic allocation approach required in the original SPIHT. Although the distortion is slightly increased, it facilitates an extremely fast throughput and easier hardware implementation. In the second research, a hybrid neural network based method for halftoning and inverse halftoning of digital images is presented. The halftone image is performed by Single-Layer Perceptron neural network (SLPNN), and its corresponding continuous-tone image is reconstructed by Radial-Basis Function neural network (RBFNN). The combined training procedure produces halftone images and the corresponding continuous tone images at the same time. The PSNR performance and visual image quality of these contone images achieved is comparable to the well-known inverse halftoning methods. Moreover, the halftone images obtained are also visually good. In the third research, the speedup of H.264/AVC coders by examining the predicted modes in a code block is described. In a rate-distortion optimized H.264/AVC (H.264/RDO) coder, the best mode with the minimal Lagrange cost is selected after calculating the rate-distortion (R-D) cost which simultaneously considers the distortion and the required number of bits in all possible modes. H.264/RDO coders achieve a good balance between bit rate and image distortion, but lots of additional computing power is required. The proposed method, called two-staged mode decision (TSMD), only executes the modes which might be the best mode used in H.264/RDO coders with other modes disabled. TSMD employs a two-staged decision process: the first stage is to predict some probable encoding modes according to the information when one encodes the preceding macro-blocks and video frames. The second stage refines the decision with either the pre-computed look-up-table or the pre-constructed Back-Propagation Neural (BPN) network. According to our experiment results, over 50% of the computation time is reduced with a small loss in Peak Signal-to-Noise ratio (PSNR) and a slight bit-rate is incremented which are not easily sensed by human eyes. All programs are based on the H.264/AVC standard reference software, JM 9.2. In the last research, a feature-based robust digital image watermarking algorithm is proposed to achieve the goal of image authentication and protection simultaneously. The Hessian-Affine feature detector is at first adopted to extract characteristic regions of an image in the proposed watermark embedding scheme. Then the copyright watermark is embedded into these characteristic regions according to the local orientation of each pixel. Moreover, the remainder regions are applied for image authentication by using block-wise fragile watermarking method. Similarly, the proposed watermark detection scheme follows the above procedure to extract the copyright watermark and the authentic information independently and blindly from watermarked images. Various attacks are also applied to the watermarked images in order to examine the robustness of our algorithm. The experimental results show that the proposed watermarking algorithm can resist most removal and geometric attacks. Besides, changes of an image will be reflected in our hidden watermarks.
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Shih, Yu-Chang, and 施有昌. "A Research of the Combine Multimedia System in the Computer Assisted Instruction." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/55544075622211964633.
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碩士大葉大學
資訊管理學系碩士在職專班
95
With the progress of the technology, new demands and application increase con-stantly, and the static words and pictures can not make people content anymore. The vivid sounds, images, and video function are highly demanded day by day. Therefore, the multimedia that can satisfy the vision and hearing are more and more valued. Hence, through the Field Research, this study collected the data from the process of developing the integrated multimedia system, combined the human-computer inter-action (HCI), designed the questionnaire according to the integrated principle, acquired the assessment basis of developing the system, and took the technology acceptance model (TAM) to be the indexes of utility and accessibility to evaluate a user’s recogni-tive attitude for the integrated multimedia system. The result of the study is that, through the test and amendment of the system, the recognitive degree on the utility and accessibility heightens comparatively.
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Wu, Wang-tsang, and 吳旺蒼. "The Research on Reusable Multimedia Contents of a Medical Simulation e-Learning System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/85958498904689308779.
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碩士國立成功大學
電機工程學系專班
97
Most of the previous medical examination and disease records were saved on paper and it is difficult to further make use of them such as search by keywords. It is also difficult to e-mail or fax them to others when one has to discuss with people at a distance. The materials may also be distorted during this transmission process. Therefore, this research develops an electrocardiogram production and simulation system. Taking advantage of the multimedia functions of computers and characteristics of internet, users can digitize the paper-based electrocardiogram anywhere for saving, inspecting, and discussing easily. The system can also synthesize new electrocardiograms for education purpose. Furthermore, this system can also simulate and show the dynamic and static electro-cardiogram. This research also develops an on-line medical picture editor. Using this on-line editor, users can choose medical pictures from a multimedia database and mark and edit them for the explanation of the symptom on a patient’s body. After editing, users can save the resultant pictures to reuse the edited contents in the future.
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Shin-feng, Chen, and 陳新豐. "The research of the multimedia on-line adaptive testing system and related study." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/80853664238021937263.
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碩士臺南師範學院
國民教育研究所
87
The research is to develop a multimedia on-line adaptive testing system by combining with the theory of test and item response, the techniques of network, multimedia and database management, etc. In the meanwhile, we can explore how the tested students'' feedback in the process of testing and afterwards their attitudes influenced by the means of PC. We prospect in the future, not only the surroundings of the test can be taken effect in multidimensional but also the establishment and practice of the test can be promoted the function of the auxiliary and verifiable teaching. There are three focuses on the research: first of all, to develop a multimedia on-line adaptive testing system; second, to evaluate the performance of on-line adaptive testing; finally, to discuss the influence of the attribution of computer towards tested students after applying a way of feedback from system in the process of testing. The research adopts an experiment of nonequivalent-control group designed, the sample schools for the research as Chung Hsiue and Ta Kung Elementary schools in Tainan City and the initial sample for the research as 307 students in total, including 162 boys and 145 girls. The materials used in the research include computer attitudes scale and multimedia on-line adaptive testing system. The data is proceeded by the analysis of two-way covariance; the independent variable as experimentation( feedback, non-feedback) and sex; the dependent variable as second tested score of computer attribute and the covariance variable as first tested score of computer attribute. The major result summarized as the followings: 1. The considerable factor of developing multimedia on-line adaptive testing system: In the aspect of the hardware, it is essential to consider the capacity of random access memory as huge and speed as fast; the capacity of hard-disk as huge and speed as fast. About the aspect of the software, it must be compatible with the web server and the operation system. In the feature of test and item-bank, the model of item response theory is based on the feature of item-bank to apply for the approriate one. The random selection of topics can reduce the high exposure rate of the item so as to prevent from losing its efficiency but it does not promise to provide the best initial item and does not fit with the spirit of the adaptive test. Therefore, the selective way of the initial item should be well-considered from the field of the content and the control of the item exposure value. The method of ability estimation, according to the present survey, if adopted Bayes selected method at the first stage and Maximum likelihood estimator as the last stage, it can acquire of the value of estimation of ability in much shorter test. Among the selected methods, such as the above-mentioned selected methods are upon seeking those purposes not practiced yet and providing the testers the highest standard and abundant informative tests. Generally, there are two applied ways to end the test standard: one as the number of item, the other as the posterior distribution of standard deviation. To consider the system design, we have to take a consideration whether the testing system and the database system design are comparable. The web server is based upon the function of its arrangement and management and the support of the database design as a keypoint. The operation system is based up stability and easy management as a consideration; the connection of the database and web server considered for the opening database connection interface. The system design for the user must be friendly because the flowchart and screen design must be to planed so as to reduce the testers'' anxiety. 2.to evaluate the performance of the multimedia on-line adaptive testing system: The performance of the multimedia on-line adaptive testing is not bad, and it tolerates forty students testing in the meantime, the coefficient of correlation of ability estimation score and tested student nature achievements is 0.625 and it is significant. In other words, if the system score of ability estimation is high, the tested students'' nature achievement will be better. 3.the influence of computer attribution in many way of feedback: There was significant difference existed on computer attitudes for sex. Boys'' computer attitudes are better than girls'' computer attitudes. There was no significant difference existed on computer attitudes for the way of feedback. The researches propose further suggestions for teaching, administrator and further research, and let us understand the related research of the on-line adaptive testing system. Also, the researches may help us reach the target of long distance testing and measurement.
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Cai, Hongyuan. "Video anatomy : spatial-temporal video profile." Thesis, 2014. http://hdl.handle.net/1805/4832.
Full textAbstract:
Indiana University-Purdue University Indianapolis (IUPUI)A massive amount of videos are uploaded on video websites, smooth video browsing, editing, retrieval, and summarization are demanded. Most of the videos employ several types of camera operations for expanding field of view, emphasizing events, and expressing cinematic effect. To digest heterogeneous videos in video websites and databases, video clips are profiled to 2D image scroll containing both spatial and temporal information for video preview. The video profile is visually continuous, compact, scalable, and indexing to each frame. This work analyzes the camera kinematics including zoom, translation, and rotation, and categorize camera actions as their combinations. An automatic video summarization framework is proposed and developed. After conventional video clip segmentation and video segmentation for smooth camera operations, the global flow field under all camera actions has been investigated for profiling various types of video. A new algorithm has been designed to extract the major flow direction and convergence factor using condensed images. Then this work proposes a uniform scheme to segment video clips and sections, sample video volume across the major flow, compute flow convergence factor, in order to obtain an intrinsic scene space less influenced by the camera ego-motion. The motion blur technique has also been used to render dynamic targets in the profile. The resulting profile of video can be displayed in a video track to guide the access to video frames, help video editing, and facilitate the applications such as surveillance, visual archiving of environment, video retrieval, and online video preview.
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洪國堯. "The Research of Multimedia Digital Signage Presentation Mechanism - A Case Study of Campus Guide Information System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/18303260522067964920.
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碩士國立彰化師範大學
數位內容科技與管理研究所
97
The Digital Signage is a multimedia presentation mechanism that combination of hardware and software, distributes a variety of information by utilizing one identical interface (ex. Liquid Crystal Display). The digital signage can be broadcast with single device and one place or through the internet with database server to transmit information to various locations that display texts, images or ads information simultaneously over distributed location. As far as we know, most current applications of the digital signage were made by business purposes in public places such as Mass Rapid Transit System, banks, department stores and markets. Our research investigates the viability of using digital signage in campus navigation system with feedbacks from users of our experiment digital signage system. Our experimental system is based on existing digital signage software and its relevant administration interface. The system is built with campus navigation content developed by researcher and it provides navigation information to academy visitors. The questionnaire collects the response of users to assess our research system. The result shows us that the system has positive effects as a system to help students or visitor retrieve guiding information. The result of our research indicates that adopting digital signage in campus navigation system is highly feasible. The result also provides the future researchers and companies with references of multimedia presentation application. The digital signage system can be coupled with Geographical Information System to make a system with rich content, compelling and effective multimedia presentation mechanism in campus environment.
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Wilkerson, David A. "Integrating individual and social learning strategies in a small-group model for online psychoeducational intervention : a mixed methods study of a parent-management training program." Thesis, 2014. http://hdl.handle.net/1805/6182.
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Indiana University-Purdue University Indianapolis (IUPUI)In the fields of formal and informal online adult education, the absence of a social context for instruction has been found to present significant limitations for learner persistence and retention. In the field of online psychoeducational intervention, self-administered and self-paced individualized prevention programs have been developed for delivery to large populations of anonymous users. These delivery models provide limited social context for instructional activities, due in part to the anonymity of their participants. When social interaction is included in their prevention programs through voluntary, asynchronous self-help/mutual aid discussion forums, anonymity may still limit social interaction, in favor of observational learning advantages for self-efficacy appraisals derived from "lurking". When these large-group models have been applied to online psychoeducation intervention programs for the purposes of encouraging mutual aid, interactive participation has been limited. This mixed methods study focused on a model for the design of an online small group psychoeducational intervention that integrated individual and social learning in a parent management training program. Self-paced participation was replaced with facilitator-led participation in an asynchronous discussion forum where topics were prioritized and sequenced with learning content from individual web-based training modules. Social interaction was facilitated through online problem-based learning discussion group. Despite assertions that interactive participation in online psychoeducational discussion forums may only be accomplished once a subscriber threshold of several hundred participants has been reached, this study found that small group participation through the program's integrated design resulted large effects for increases in parent self-agency and reduction of over-reactive, coercive parenting behaviors. Participation in the online problem-based group discussion forum was found to have contributed to participant outcomes when posting characteristics revealed the presence of both mutual aid processes and the application of individual learning module content.
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Peng, Yao-Cheng, and 彭耀政. "A Fraework Research on Applying the Multimedia Technology of Internet System in Education for the Marine Environment." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/60668395986731042269.
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碩士國立中山大學
海洋環境及工程學系研究所
89
This research focuses on the discussion of how network education helps to improve marine environment. In recent years, due to the serious pollution of the environment of the sea near Taiwan, the development of education of marine environment becomes necessary. The popularity of Internet not only establishes the information system but also leads us into a new digital era of knowledge economy. The most influential impact of Internet on education is the rapid development of cyber learning. This study employs the technology of multi-media, information sharing mechanism, information alnalysis, to establish information system in the education of marine environment. The major purpose of this study is to explore the relationship of the cyber technology of distance learning and the education of marine environment. The discussion includes curricula design for cyber learning, the system of knowledge exchange in marine environment, evaluation of learning performance and the suggestion for development of informative education system in marine environment.
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Chang, Chou-Cheng, and 張洲誠. "The Research of the Application to Multimedia Interactive Technology: An Example of the Developing of Campus Guide System." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/31675608669541791929.
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碩士南榮技術學院
工程科技研究所碩士班
99
This research is to study the development and application to multimedia interactive technology. We try to improve the practical effects when interactive equipments are applied to Campus Guide System (CGS). These equipments include G25 Racing Wheel, Bluetooth Ball, and ASUS Xtion-Pro as well. And, these products are popular in 3C market. In place of a keyboard and a mouse, these equipments could express virtual interactive function and give the users more fun when they play the game. G25 Racing Wheel is to simulate the driving functions. In order to introduce the characteristics of local campus, the game should be designed in the methods of 3 dimensional field scene and a maze-route alike to increase the interactive effects and more fun. The equipment of Bluetooth Ball have different functions including electronic compass, G-Sensor (measuring tiny difference of gravity) and Blue-tooth wireless transmission channel and so on. It can control the material in field scene through the squeeze, press, twist, and throw by user’s hands. To a certain extent, it will enhance elasticity and more interesting in CGS. ASUS Xtion-Pro comprises one special camera. It may measure the body-shaped and the distance from camera to body’s location by an infrared sensor (the information including hands’ datasets and 3D body-skeleton datasets). Incorporated with those datasets, we develop the platform to control the movement of characters in CGS by 3D body-skeleton datasets. Moreover, hands’ datasets can provide the information for the control of optional column function. The big step for the usage of ASUS Xtion-Pro is to provide the opportunity to control the functions in operating CGS without any physical equipment. One user just shows some default gestures in front of the camera. He will be regarded as a target. Afterward he can navigate the field scene, virtual characters and optional column functions by his hands’ gestures and body movements. Furthermore, he may experience more real 3D field scene and interaction in CGS provided by the distinguished features of ASUS Xtion-Pro.
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WANG, WEI-SIN, and 王偉欣. "Action Research on Promoting Self-Determination in Leisure Activities of a Middle School Student with Intellectual Disability by Multimedia Reminder System." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/hcb674.
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碩士國立臺南大學
特殊教育學系重度障礙碩士班
107
The action research aimed to assist one of my students to promote her self-determination in leisure activities. The 7th graded female student had moderate mental retardation. With her parents' permission, a family-friendly multimedia prompt system was built and applied in the home environment to establish the student’s self-determination skills in leisure activities. As the researcher together with the student and her mother encountering various unexpected situations, the action plan had adjusted for three times. In the research, data was collected mainly through interviews, discussions and direct observations. Data analysis included the continuous-comparison and description statistics. The research obtains the following results: 1. The action plan was developed, implemented and adjustedall based on the student’s needs and problems encountered in her daily life, and correspond to her ecological environment as well as natural support systems. 2. After the implementation of the action plan, the frequence of the student’s attending leisure activities has increased. 3. After the implementation of the action plan, the student’s self-determination in leisure activities has shown frequently, such as self-selection and active seeking assistance/alternatives. 4. After the implementation of the action plan, the student’s leisure activities skills has not yet improved significantly. 5. The student was satisfied with the results from the action plan. The action research shows that the multimedia reminder system enhances the self-determination performance in leisure activities of the student with moderate intellectual disability. The implication from the results is that the multimedia reminder system might be a useful tool for students with intellectual disabilities to improve their own self-determination. Suggestions for practice and further research are provided.
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Pandita, Shreya. "OpenFlow based load balancing and proposed theory for integration in VoIP network." Thesis, 2014. http://hdl.handle.net/1805/4444.
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Indiana University-Purdue University Indianapolis (IUPUI)In today's internet world with such a high traffic, it becomes inevitable to have multiple servers representing a single logical server to share enormous load. A very common network configuration consists of multiple servers behind a load balancer. The load balancer determines which server would service a clients request or incoming load from the client. Such a hardware is expensive, runs a fixed policy or algorithm and is a single point of failure. In this paper, we will implement and analyze an alternative load balancing architecture using OpenFlow. This architecture acquires flexibility in policy, costs less and has the potential to be more robust. This paper also discusses potential usage of OpenFlow based load balancing for media gateway selection in SIP-PSTN networks to improve VoIP performance.
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Krotil, Martin. "Autorská prostředí pro tvorbu multimediálních výukových objektů v rámci přípravy učitele." Master's thesis, 2014. http://www.nusl.cz/ntk/nusl-335540.
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This diploma thesis deals with the topic of multimedia learning objects and authoring systems for its design. In the form of a qualitative survey the paper discovers the most frequent practice teachers' requirements for these objects and systems. Subsequently, the paper carries out theoretical analysis of commonly available authoring systems for multimedia learning object creation and performs their evaluation from the point of view of the identified requirements. After that, the thesis notes that there is no authoring system available on the market that would adequately meet the requirements identified. Therefore, the paper works on the design and realization of such a system. Finally, the designed and implemented system is deployed in a real educational environment and its contribution to the teacher's work is validated by accomplished action research.
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JENG, CHIAN-G. JIUW, and 江鈞正. "This Research is Based on the Interest and the Applied Problem Solving Skill of Adopting Multimedia Teaching Web System on the Integer Four Functions in Primary School." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/14196294802361706579.
Full textAbstract:
碩士大葉大學
資訊管理學系碩士班
92
This research is on the problem-solving ideas and skills that the fifth grade primary students need in applied mathematic question. By using the multimedia teaching web system in flash, the result shows that it can reinforce the problem-solving skills. We can know that the changes in student’s interest and problem-solving ability before the multimedia teaching web system are conduct. This research takes place among the fifth graders of jin xio primary school. First, random sampling the six classes and divide them into two groups, three classes at each. To execute the experimental teaching, one group is set as experiment group, and the other is the control group. The main results of this research are as following: 1.After experience two ways of teaching, both the multimedia teaching web system and traditional teaching style, the students ‘performances are comparative high. 2.After adopting the multimedia teaching web system, the result shows those girls perform better than boys on pre-test but no difference on the after-test. Thee result also shows that after practice, boy performance better then girls. 3.After adopting the traditional teaching style, the result shows the girls perform better in pre-test. When comparing the result in after-test, there is no difference in between. The result also shows that after practicing the traditional teaching style, the boys show better performance than girls do. 4.Among the students who practice the multimedia teaching web system, many of them have computer in their residence. However, those who had practice the similar systems or cai system are few. 5.The students have higher appraises on using multimedia teaching web system to learn math than the traditional teaching style. 6.The result of this experiment shows that in using the multimedia teaching web system the students gain higher satisfaction on the operation surface. Learning motive, needs, and effectiveness. 7.Comparing the multimedia teaching web system to the traditional teaching style, more girls feel that “ using computer to learn applied questions is much more understandable than learning from the black board. “ in the other matters, boys and girls all feel that multimedia teaching method is much more interesting, understandable than traditional teaching style. 8.Form the result, we learn that there is no difference between the boys and girls’ satisfaction of using multimedia teaching web system. From the discussion above, we learn that the research in multimedia teaching web system can effectively upraise the students’ interest and ability on applied problem-solving. Finally, in regards to the limit and deficiency that bring to discussion in this research, the suggestions provide are for future reference.