To see the other types of publications on this topic, follow the link: Compression scheme.

Dissertations / Theses on the topic 'Compression scheme'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Compression scheme.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Lim, Seng. "Image compression scheme for network transmission." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA294959.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Presvôts, Corentin. "Multiple-Model Coding Scheme for Electrical Signal Compression." Electronic Thesis or Diss., université Paris-Saclay, 2025. http://www.theses.fr/2025UPASG007.

Full text
Abstract:
L'intégration des sources d'énergie renouvelables dans le réseau électrique introduit une dynamique plus complexe, nécessitant un contrôle plus efficace et à faible latence. Ce contrôle exige la transmission de gros volumes de données des sous-stations aux centres de contrôle supérieurs. Pour répondre aux contraintes de débit du réseau, il est crucial de développer des techniques de compression efficaces, adaptées aux caractéristiques spécifiques des signaux électriques. Actuellement, les Phasor Measurement Units (PMUs) sont les dispositifs les plus couramment utilisés pour acquérir et compres
APA, Harvard, Vancouver, ISO, and other styles
3

Li, Yun, Mårten Sjöström, Ulf Jennehag, Roger Olsson, and Tourancheau Sylvain. "Subjective Evaluation of an Edge-based Depth Image Compression Scheme." Mittuniversitetet, Avdelningen för informations- och kommunikationssystem, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-18539.

Full text
Abstract:
Multi-view three-dimensional television requires many views, which may be synthesized from two-dimensional images with accompanying pixel-wise depth information. This depth image, which typically consists of smooth areas and sharp transitions at object borders, must be consistent with the acquired scene in order for synthesized views to be of good quality. We have previously proposed a depth image coding scheme that preserves significant edges and encodes smooth areas between these. An objective evaluation considering the structural similarity (SSIM) index for synthesized views demonstrated an
APA, Harvard, Vancouver, ISO, and other styles
4

Mensmann, Jörg, Timo Ropinski, and Klaus Hinrichs. "A GPU-Supported Lossless Compression Scheme for Rendering Time-Varying Volume Data." University of Münster, Germany, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-92867.

Full text
Abstract:
Since the size of time-varying volumetric data sets typically exceeds the amount of available GPU and main memory, out-of-core streaming techniques are required to support interactive rendering. To deal with the performance bottlenecks of hard-disk transfer rate and graphics bus bandwidth, we present a hybrid CPU/GPU scheme for lossless compression and data streaming that combines a temporal prediction model, which allows to exploit coherence between time steps, and variable-length coding with a fast block compression algorithm. This combination becomes possible by exploiting the CUDA computin
APA, Harvard, Vancouver, ISO, and other styles
5

Bernat, Andrew. "Which partition scheme for what image?, partitioned iterated function systems for fractal image compression." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2002. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ65602.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Kadri, Imen. "Controlled estimation algorithms of disparity map using a compensation compression scheme for stereoscopic image coding." Thesis, Paris 13, 2020. http://www.theses.fr/2020PA131002.

Full text
Abstract:
Ces dernières années ont vu apparaître de nombreuses applications utilisant la technologie 3D tels que les écrans de télévisions 3D, les écrans auto-stéréoscopiques ou encore la visio-conférence stéréoscopique. Cependant ces applications nécessitent des techniques bien adaptées pour comprimer efficacement le volume important de données à transmettre ou à stocker. Les travaux développés dans cette thèse concernent le codage d’images stéréoscopiques et s’intéressent en particulier à l'amélioration de l'estimation de la carte de disparité dans un schéma de Compression avec Compensation de Dispari
APA, Harvard, Vancouver, ISO, and other styles
7

Philibert, Manon. "Cubes partiels : complétion, compression, plongement." Electronic Thesis or Diss., Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0403.

Full text
Abstract:
Les sous-graphes isométriques d'hypercubes (dit cubes partiels) constituent une classe centrale de la théorie métrique des graphes. Ils englobent des familles de graphes importantes (arbres, graphes médians, etc.), provenant de différents domaines de recherche, tels que la géométrie discrète, la combinatoire ou la théorie géométrique des groupes. Nous étudions tout d'abord la structure des cubes partiels de VC-dimension 2. Nous montrons que ces graphes peuvent être obtenus par amalgamations à partir de deux types de cellules combinatoires.Cette décomposition nous permet d’obtenir diverses cara
APA, Harvard, Vancouver, ISO, and other styles
8

Samuel, Sindhu. "Digital rights management (DRM) : watermark encoding scheme for JPEG images." Pretoria : [s.n.], 2007. http://upetd.up.ac.za/thesis/available/etd-09122008-182920/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Bekkouche, Hocine. "Synthèse de bancs de filtres adaptés, application à la compression des images." Phd thesis, Université Paris Sud - Paris XI, 2007. http://tel.archives-ouvertes.fr/tel-00345288.

Full text
Abstract:
Les travaux développés dans cette thèse portent sur les décompositions multirésolution dans un cadre de lifting scheme, appliquées à la compression d'images. Pour commencer, une structure de décomposition consistant en un “lifting scheme généralisé” est proposée. Ce schéma permet d'exploiter toute l'information disponible au décodage dans l'étape de prédiction. Cela est rendu possible par l'ajout d'un filtre de prédiction supplémentaire par rapport à la structure classique de lifting scheme. Le schéma proposé est ensuite associé à deux méthodes d'adaptation. La première, appelée GAE, suppose u
APA, Harvard, Vancouver, ISO, and other styles
10

Ali, Azad [Verfasser], Neeraj [Akademischer Betreuer] Suri, Christian [Akademischer Betreuer] Becker, Stefan [Akademischer Betreuer] Katzenbeisser, Andy [Akademischer Betreuer] Schürr, and Marc [Akademischer Betreuer] Fischlin. "Fault-Tolerant Spatio-Temporal Compression Scheme for Wireless Sensor Networks / Azad Ali ; Neeraj Suri, Christian Becker, Stefan Katzenbeisser, Andy Schürr, Marc Fischlin." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2017. http://d-nb.info/1127225405/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
11

Průša, Zdeněk. "Efektivní nástroj pro kompresi obrazu v jazyce Java." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217433.

Full text
Abstract:
This diploma thesis deals with digital image lossy compression. Lossy compression in general inserts some kind of distorsion to the resulting image. The distorsion should not be interupting or even noticable in the better case. For image analysis there is used process called transformation and for choosing relevant coefficients process called coding. Evaluation of image quallity can be done by objective or subjective method. There is encoder introduced and realized in this work. Encoder utilizes two-dimension wavelet transform and SPIHT algortihm for coefficient coding. It was made use of acce
APA, Harvard, Vancouver, ISO, and other styles
12

Tohidypour, Hamid Reza. "Complexity reduction schemes for video compression." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/60250.

Full text
Abstract:
With consumers having access to a plethora of video enabled devices, efficient transmission of video content with different quality levels and specifications has become essential. The primary way of achieving this task is using the simulcast approach, where different versions of the same video sequence are encoded and transmitted separately. This approach, however, requires significantly large amounts of bandwidth. Another solution is to use scalable Video Coding (SVC), where a single bitstream consists of a base layer (BL) and one or more enhancement layers (ELs). At the decoder side, based o
APA, Harvard, Vancouver, ISO, and other styles
13

Fgee, El-Bahlul. "A comparison of voice compression using wavelets with other compression schemes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ39651.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Han, Bin. "Subdivision schemes, biorthogonal wavelets and image compression." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0013/NQ34774.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

方惠靑 and Wai-ching Fong. "Perceptual models and coding schemes for image compression." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31235785.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Fong, Wai-ching. "Perceptual models and coding schemes for image compression /." Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18716064.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Dinakenyane, Otlhapile. "SIQXC : Schema Independent Queryable XML Compression for smartphones." Thesis, University of Sheffield, 2014. http://etheses.whiterose.ac.uk/7184/.

Full text
Abstract:
The explosive growth of XML use over the last decade has led to a lot of research on how to best store and access it. This growth has resulted in XML being described as a de facto standard for storage and exchange of data over the web. However, XML has high redundancy because of its self-describing nature making it verbose. The verbose nature of XML poses a storage problem. This has led to much research devoted to XML compression. It has become of more interest since the use of resource constrained devices is also on the rise. These devices are limited in storage space, processing power and al
APA, Harvard, Vancouver, ISO, and other styles
18

Kalajdzievski, Damjan. "Measurability Aspects of the Compactness Theorem for Sample Compression Schemes." Thèse, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23133.

Full text
Abstract:
In 1998, it was proved by Ben-David and Litman that a concept space has a sample compression scheme of size $d$ if and only if every finite subspace has a sample compression scheme of size $d$. In the compactness theorem, measurability of the hypotheses of the created sample compression scheme is not guaranteed; at the same time measurability of the hypotheses is a necessary condition for learnability. In this thesis we discuss when a sample compression scheme, created from compression schemes on finite subspaces via the compactness theorem, have measurable hypotheses. We show that if $X$ is a
APA, Harvard, Vancouver, ISO, and other styles
19

Kovvuri, Prem. "Investigation of Different Video Compression Schemes Using Neural Networks." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/320.

Full text
Abstract:
Image/Video compression has great significance in the communication of motion pictures and still images. The need for compression has resulted in the development of various techniques including transform coding, vector quantization and neural networks. this thesis neural network based methods are investigated to achieve good compression ratios while maintaining the image quality. Parts of this investigation include motion detection, and weight retraining. An adaptive technique is employed to improve the video frame quality for a given compression ratio by frequently updating the weigh
APA, Harvard, Vancouver, ISO, and other styles
20

Masupe, Shedden. "Low power VLSI implementation schemes for DCT-based image compression." Thesis, University of Edinburgh, 2001. http://hdl.handle.net/1842/12604.

Full text
Abstract:
The Discrete Cosine Transform(DCT) is the basis for current video standards like H.261, JPEG and MPEG. Since the DCT involves matrix multiplication, it is a very computationally intensive operation. Matrix multiplication entails repetitive sum of products which are carried out numerous times during the DCT computation. Therefore, as a result of the multiplications, a significant amount of switching activity takes place during the DCT process. This thesis proposes a number of new implementation schemes that reduce the switching capacitance within a DCT processor for either JPEG or MPEG environm
APA, Harvard, Vancouver, ISO, and other styles
21

Solé, Rojals Joel. "Optimization and generalization of lifting schemes: application to lossless image compression." Doctoral thesis, Universitat Politècnica de Catalunya, 2006. http://hdl.handle.net/10803/6897.

Full text
Abstract:
This Ph.D. thesis dissertation addresses multi-resolution image decomposition, a key issue in signal processing that in recent years has contributed to the emergence of the JPEG2000 image compression standard. JPEG2000 incorporates many interesting features, mainly due to the discrete wavelet transform stage and to the EBCOT entropy coder.<br/><br/>Wavelet analysis perform multi-resolution decompositions that decorrelate signal and separate information in useful frequency-bands, allowing flexible post-coding. In JPEG2000, decomposition is computed through the lifting scheme, the so-called seco
APA, Harvard, Vancouver, ISO, and other styles
22

Aburas, Abdul Razag Ali. "Data compression schemes for pattern recognition in digital images using fractals." Thesis, De Montfort University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391231.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Mo, Ching-Yuan, and 莫清原. "Image Compression Technique Using Fast Divisive Scheme." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/07222792958381290250.

Full text
Abstract:
碩士<br>國立屏東科技大學<br>資訊管理系所<br>99<br>In the field regarding image compression, as LBG is a fast and easily understanding method with simple construction, and its compressed quality after training is acceptable, LBG is always considered an important technique in VQ(Vector Quantization)field. The other divisive algorithm is Cell Divisive Algorithm. Its construction is much simpler as it removes the precedure of checking convergent status in LBG, and add or subtract vector's value after dividing one into two. The whole procedure is faster, but the PSNR value is not satisfactory. The thesis is to p
APA, Harvard, Vancouver, ISO, and other styles
24

Minz, Manoranjan. "Efficient Image Compression Scheme for Still Images." Thesis, 2014. http://ethesis.nitrkl.ac.in/6306/1/110EC0172-2.pdf.

Full text
Abstract:
The raw image files take a large amount of disk space and it can be a huge disadvantage while storing or transmitting, and for this reason an efficient image compression technique is required. Image compression has been a widely addressed research area since many years. Many compression standards have been proposed. But there is still a scope for high compression with better quality reconstruction. Discrete Cosine Transform (DCT) is used for compression in a very popular standard called JPEG. First section of this paper aims at the analysis of compression using DCT transform method, and result
APA, Harvard, Vancouver, ISO, and other styles
25

Shiu, Pei-Feng, and 徐培峯. "A DCT based watermarking scheme surviving JPEG compression." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/02411822415288436323.

Full text
Abstract:
碩士<br>靜宜大學<br>資訊工程學系<br>99<br>In this thesis, a DCT-based watermarking technique is proposed. This scheme is designed to increase its robustness of hidden watermark so that the hidden watermark can withstand JPEG compression attack. To achive our objective, the proposed watermark scheme embeds watermark into the DCT coefficients. To remain the visual quality of watermarked images, only low-frequency DCT coefficients are selected to carry hidden watermark by the concept of mathematical remainder. To enhance the robustness of the watermark, a voting mechanism is applied in the scheme. Experimen
APA, Harvard, Vancouver, ISO, and other styles
26

Tseng, Wei-Rong, and 曾緯榮. "Digital Image Watermarking Based on Fractal Compression Scheme." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/22085167290982840415.

Full text
Abstract:
碩士<br>國立高雄第一科技大學<br>電腦與通訊工程系<br>89<br>In the end of 20’th century, the digital revolution brings limitless convenience for people. Internet has taken the place of conventional medium. It becomes the most efficient medium. The creations show people rich and colorful appearance by the Internet and multimedia. The protection of intellectual property is very important. The creator and copyright owner don’t wish their work would be cribbed. The digital watermarking technology has been respected in order to protect every lawful owner’s rights. And more investigators are devoted to the study of this
APA, Harvard, Vancouver, ISO, and other styles
27

Kuo, Ta-Jung, and 郭大榮. "A Hybrid Coding Scheme for Color Image Compression." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/18416180146372995425.

Full text
Abstract:
碩士<br>國立高雄第一科技大學<br>電腦與通訊工程所<br>93<br>Two hybrid image-coding schemes are proposed by the combination of the advantages of four coding schemes: BTC, VQ, DCT coding, and predictive coding. The experiments show that the hybrid coding schemes can obtain high compression ratio, saved VQ codebook searching time, and the competitive image quality. BTC has the property of low computational complexity and the edge preservation. DCT has the property of high image quality and high compression ratio. VQ has the property of high compression ratio and the moderate fidelity. The input image is first coded t
APA, Harvard, Vancouver, ISO, and other styles
28

Cheng, Chao-hsun, and 鄭昭勳. "Compression Scheme for waveform of Hardware Design Verification." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/27107029715915719378.

Full text
Abstract:
碩士<br>國立臺灣大學<br>資訊工程學研究所<br>89<br>Abstract Among VLSI circuit design, functional verification has become an important part due to rapid extension of circuits functionalities in many consumer and industry products. During circuit simulation, a very large trace file is written, containing value-changes for every node in the design, or a subsystem within the design. Upon completion, the designer could watch the entire simulation history through a waveform tool to achieve the verification tasks. Verilog's VCD file format has created a competitive market for wavefor
APA, Harvard, Vancouver, ISO, and other styles
29

Yang, Sheng-Yu, and 楊勝裕. "A Constant Rate Block Based Image Compression Scheme Using Vector Quantization and Prediction Schemes." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/wrwyp4.

Full text
Abstract:
碩士<br>國立中興大學<br>電機工程學系所<br>107<br>This thesis proposes an embedded image compression system aimed at reducing the large amount of data transmission and storage along the display link path. Embedded compression focuses on low computing complexity and low hardware resources requirement, while providing a guarantee of compression performance. The algorithm proposed in this thesis is a constant rate block based image compression scheme with two scheme options. Both schemes will be examined at the same time and the better one is chosen. In order to support the "screen partial update" function of th
APA, Harvard, Vancouver, ISO, and other styles
30

Liao, Hua-Cheng, and 廖華政. "A Novel Data Compression Scheme for Chinese Character Patterns." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/74259223131567530391.

Full text
Abstract:
碩士<br>逢甲大學<br>自動控制工程研究所<br>84<br>This thesis proposes an efficient lossless compression scheme for Chinese character patterns. The proposed scheme analyzes the characteristic of line-segment structures of Chinese character patterns. A novel matching algorithm is developed for the line- segment prediction used in the encoding and decoding processes. The bit rates achieved with the proposed lossless scheme are 0.2653, 0.2448 and 0.2583, for three Chinese fonts, respectively. Due to the black
APA, Harvard, Vancouver, ISO, and other styles
31

Liu, Chia Liang, and 劉家良. "Hybrid Image Compression Scheme Based on PVQ and EVQ." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/91423278776285614954.

Full text
Abstract:
碩士<br>大葉大學<br>資訊工程學系碩士班<br>93<br>The image compression is used to vector quantization. It has not considered the relation between the image blocks, so we could be able to improve the bit rate. In this paper, we propose a predicted coding scheme based on VQ algorithm, prediction algorithm, and error VQ algorithm. The prediction algorithm is used to encode smooth blocks. Otherwise VQ and EVQ are used to encode edge blocks, respectively. The scheme not only improves the image quality of decompressed but also has low bit rate than VQ algorithm. The experimental results show that our scheme perform
APA, Harvard, Vancouver, ISO, and other styles
32

Lin, Ang-Sheng, and 林昂賢. "A High Performance Compression Scheme for General XML Data." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/98661171696464125372.

Full text
Abstract:
碩士<br>國立臺灣大學<br>資訊工程學研究所<br>88<br>In this thesis, we propose a high performance compression scheme for general XML data. The scheme takes advantages of semisturcture data characters, text mining method, and existing compressing algorithms. To compress heterogeneous XML data, we incorporates and combines existing compressing such as zlib, the library function for gzip, as well as a collection of datatype specific compressors. In our scheme, we do not need schema information (such as a DTD or an XML-Schema), but can exploit those hints to further improve the compression ratio. Accordi
APA, Harvard, Vancouver, ISO, and other styles
33

Liu, Hung-Chun, and 劉鴻鈞. "An Improved Image Coding Scheme with Less Compression Artifacts." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/04791490836438453971.

Full text
Abstract:
碩士<br>臺灣大學<br>資訊工程學研究所<br>98<br>JPEG is one of the most popular formats which are designed to reduce the bandwidth and memory space. A lossy compression algorithm is used in JPEG format, meaning that some information is lost and cannot be restored after compression. When high compression ratio is considered, certain artifacts are inevitable as a result of the degradation of image quality. In this thesis, an image enhancement algorithm is proposed to reduce artifacts which are caused by JPEG compression standard. We found that severe degradation mostly occurs in the area containing edges. The
APA, Harvard, Vancouver, ISO, and other styles
34

LIN, JIAN-FU, and 林建福. "A Chinese syllables compression scheme based upon perfect hashing." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/29156709083274114521.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Chen, Kung-Han, and 陳功瀚. "An Efficient Test Data Compression Scheme Using Selection Expansion." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/61101774897607876166.

Full text
Abstract:
碩士<br>淡江大學<br>電機工程學系碩士班<br>100<br>Because MISR (Multiple input shift register) can use one ATE data run a lot of times in it. We use this characteristic to let one data run lots of times in MISR to generate a lot of patterns. MISR is the foundation of our decompressor .And using Gauss-Elimination to get the ATE data. Selection with Flip-Flop can spread MISR data, because one Flip-Flop of MISR connected with two MUXs of Selection. The Selection connected with the MISR. Flip-Flops are connected with the Selection. The original ATE is spreading by our decompressor architecture. And using the Fli
APA, Harvard, Vancouver, ISO, and other styles
36

Sukerkar, Amol Nishikant. "Study of joint embedding and compression on JPEG compression scheme using multiple codebook data hiding." Thesis, 2005. http://library1.njit.edu/etd/fromwebvoyage.cfm?id=njit-etd2005-015.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Cheng, Sung-Wei, and 鄭松瑋. "Test Data Compression Using Scan Chain Compaction and Broadcasting Scheme." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/16319084306417623328.

Full text
Abstract:
碩士<br>元智大學<br>資訊工程學系<br>97<br>In this paper we propose a compression method for scan testing. There are lots of test data in a test set that can be assigned 1 or 0 without affecting the test result, which are called don’t care bits(X-bits). These don''t care bits can be used for increasing the compatibility of test data in order to achieve the goal of reducing test data volume. In addition, we use the structure of multiple scan chains in which original single scan chain is partitioned into several sub-scan chains. Test data are then shifted by a broadcast way for reducing test application time
APA, Harvard, Vancouver, ISO, and other styles
38

張寶田. "An image compression technique based on segmented image coding scheme." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/66941259033552666833.

Full text
APA, Harvard, Vancouver, ISO, and other styles
39

Lin, Che-wei, and 林哲瑋. "A Power-aware Code-compression Scheme for RISC/VLIW Architecture." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/99333342572652783073.

Full text
Abstract:
碩士<br>國立臺灣科技大學<br>電子工程系<br>98<br>We studied the architecture of embedded computing systems from the memory power consumption point-of-view and used selective-code- compression (SCC) approach to realize our design. Based on the LZW (Lempel-Ziv-Welch) compression algorithm, we proposed a novel cost effective compression and decompression method. The goal of our study is to develop a new SCC approach with the extended decision policy based on the prediction of power consumption. Our decompression method has to be easily implemented in hardware and should collaborate with the processor at
APA, Harvard, Vancouver, ISO, and other styles
40

Chang, Jin-Bang, and 張進邦. "DSP implementation of Lifting Scheme Wavelet Transform in Image Compression." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/56117301651056609954.

Full text
Abstract:
碩士<br>國立成功大學<br>工程科學系碩博士班<br>94<br>Abstract In this thesis, we will discuss the theoretical backgrounds of discrete wavelet transform (DWT) in image processing. The Lifting-based Discrete Wavelet Transform (LDWT) has been proposed to reduce the complexity of hardware implementation. An image processing board based on TMS320C6713 DSK (TI, American), which can provide floating-point arithmetic and 8 parallel process capabilities, is designed to implement the Lifting-based Discrete Wavelet Transform and Lifting-based Inverse Discrete Wavelet Transform and apply to image compression and encoding.
APA, Harvard, Vancouver, ISO, and other styles
41

Ali, Azad. "Fault-Tolerant Spatio-Temporal Compression Scheme for Wireless Sensor Networks." Phd thesis, 2017. https://tuprints.ulb.tu-darmstadt.de/5924/7/Azad-Final-Gray.pdf.

Full text
Abstract:
Wireless sensor networks are often deployed for environmental sampling and data gathering. A typical wireless sensor network consists, from hundreds to thousands, of battery powered sensor nodes fitted with various sensors to sample the environmental attributes, and one or more base stations, called the sink. Sensor nodes have limited computing power, memory and battery. Sensor nodes are wirelessly interconnected and transmit the sampled data in a multihop fashion to the sink. The sheer number of sensor nodes and the amount of sampled data can generate enormous amount of data to be transmitted
APA, Harvard, Vancouver, ISO, and other styles
42

Lee, Vaughan Hubert. "A new HD video compression scheme using colourisation and entropy." Thesis, 2012. http://hdl.handle.net/10210/7882.

Full text
Abstract:
M.Ing.<br>There is a growing demand for HD video content. That demand requires significant bandwidth, even with sophisticated compression schemes. As the demand increases in popularity, the bandwidth requirement will become burdensome on networks. In an effort to satisfy the demand for HD, improved compression schemes need to be investigated together with increasing efficiency of transmission. The purpose of this literature study is to investigate existing video compression schemes and techniques used in software implementations. Then to build on existing work within the mature field of video
APA, Harvard, Vancouver, ISO, and other styles
43

郭建綱. "An Image Quadtree Coding Scheme for Compression and Progressive Transmission." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/37243270916169374016.

Full text
Abstract:
碩士<br>國防管理學院<br>資源管理研究所<br>84<br>Due to the characteristics of huge memory space and long period of processing time, the spatial data of image and graph will cost too much for computer systems; the situation is even more worst when the network transmission is applied. So, the compression scheme of spatial data becomes an important research domain of information technology because the requirement of graphic user interface( GUI ) and multimedia is inevitable nowadays. Quadtree is a hierarchical data structure to represent the spatial data. It be widely applied on computer graphics, image process
APA, Harvard, Vancouver, ISO, and other styles
44

GUO, XING-HONG, and 郭星宏. "A high compression pate lossless scheme for still color images." Thesis, 1991. http://ndltd.ncl.edu.tw/handle/63742156242313109350.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Li, Wei-Lin, and 李威霖. "A Novel Constructive Data Compression Scheme for Low-Power Testing." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/57004877392584365459.

Full text
Abstract:
碩士<br>淡江大學<br>電機工程學系碩士班<br>97<br>As the design trends of very large scale integration (VLSI) circuit evolve into system-on-a-chip (SoC) design, each chip contains several reusable intellectual property (IP) cores. In order to test the chip completely, we must generate a test set for testing in advance, and store these test patterns in memory of automatic test equipment (ATE). One can imagine that test data volume increases as the integrated circuits (ICs) become complex, yet the bandwidth and memory capacity of ATE is limited. Thus, it is difficult to transmit huge test data from ATE memory to
APA, Harvard, Vancouver, ISO, and other styles
46

Jiang, Jianmin, and E. A. Edirisinghe. "A hybrid scheme for low-bit rate stereo image compression." 2009. http://hdl.handle.net/10454/2717.

Full text
Abstract:
No<br>We propose a hybrid scheme to implement an object driven, block based algorithm to achieve low bit-rate compression of stereo image pairs. The algorithm effectively combines the simplicity and adaptability of the existing block based stereo image compression techniques with an edge/contour based object extraction technique to determine appropriate compression strategy for various areas of the right image. Unlike the existing object-based coding such as MPEG-4 developed in the video compression community, the proposed scheme does not require any additional shape coding. Instead, the arbit
APA, Harvard, Vancouver, ISO, and other styles
47

McIntosh, Ian James. "Implementation of an application specific low bit rate video compression scheme." Thesis, 2001. http://hdl.handle.net/10413/5671.

Full text
Abstract:
The trend towards digital video has created huge demands all the link bandwidth required to carry the digital stream, giving rise to the growing research into video compression schemes. General video compression standards, which focus on providing the best compression for any type of video scene, have been shown to perform badly at low bit rates and thus are not often used for such applications. A suitable low bit rate scheme would be one that achieves a reasonable degree of quality over a range of compression ratios, while perhaps being limited to a small set of specific applications. One suc
APA, Harvard, Vancouver, ISO, and other styles
48

MENG, YI-HENG, and 蒙以亨. "A new data compression scheme based upon Lempel-Ziv universal algorithm." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/33662737083984646399.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Liu, Jin-Min, and 劉景民. "A Chinese Text Compression Scheme Based on Large-Alphabet BW-Transform." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/13718831705317109242.

Full text
Abstract:
碩士<br>國立臺灣科技大學<br>電機工程系<br>92<br>In this thesis, a Chinese text compression scheme based on large alphabet Burrows-Wheeler transform(BWT) is proposed. First, an inputted Chinese text file is parsed with a large alphabet consisting of characters from BIG-5 and ASCII codes. Then, the parsed token stream is processed by BWT, MTF(Move To Front), and arithmetic coding. To improve the speed of the proposed scheme, we have also studied a few ways for practical implementations of BWT, MTF and arithmetic coding under large-alphabet parsing condition. According to the compression scheme, a practically e
APA, Harvard, Vancouver, ISO, and other styles
50

Huang, Jian-Jhih, and 黃建智. "An efficient and effective image compression technique based on segmentation scheme." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/31808924591499938173.

Full text
Abstract:
碩士<br>國立屏東科技大學<br>資訊管理系所<br>101<br>Recently, a large number of multimedia transmits in the network. However, the transmission speed and storage space confront with several limitations. Therefore, to provide an efficient and effective image compression technique for multimedia transmission environment in networks is required. In the past, there are several image compression techniques have been presented. However, the quality and execution time of the image compression techniques still need to be improved. Therefore, this thesis proposes a new effective and efficient image compression method t
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!