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Dissertations / Theses on the topic 'Coding method'

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Published: 28 May 2022

Last updated: 30 July 2025

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1

Barclay, Nicola. "Fault replication as a method of coding information." Thesis, University of Ulster, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263277.

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2

Takahashi, Kuniaki 1973. "Edge and region segmentation based video coding method." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/46189.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science; and, Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.<br>Includes bibliographical references (p. 61-63).<br>by Kuniaki Takahashi.<br>B.S.<br>M.Eng.

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3

Sun, Jiannhwa. "The NEO binary entropy coding method and system /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2004. http://uclibs.org/PID/11984.

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4

Zhang, Yuan 1976. "An efficient coding method for spatial data : the rotating, hierarchical, overlapping representation." Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=29552.

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A new, efficient image compression algorithm based on a rotating, overlapping, hierarchical representation (ROHR) is presented. This algorithm first decomposes the spatial image data into a hierarchical coordinate space, composed of interconnected nodes. The surprise of each node represents the entropy of the corresponding image area, and determines its significance in reconstructing the image. Surprises are ordered and transmitted in decreasing order of magnitude with a bucket encoding method, yielding an embedded code. ROHR allows for either lossless compression, or for termination of the en

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5

Swain, P. "A computer based method for analysing the phase response of a digital magnetic recording system." Thesis, Cranfield University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234497.

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6

Gamir, Luis Palafox. "A new method for the determination of the entry position of #gamma#-rays in high purity germanium detectors by current pulse analysis." Thesis, Cranfield University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387640.

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7

Sia, Yaw Yoong. "Development of the Generalised Boundary Points Method for Shape Optimisation using Binary and Real-coding Genetic Algorithms." Thesis, University of Leeds, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.485219.

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Shape optimisation of continuum structures is concerned with changes to the external boundary of a structure to reach the optimum design. A structure is said to be optimal, if the objective function has the greatest degree of merit and the structure itself satisfies both the geometry and behaviour constraints at the same time. Genetic Algorithms (GA) are used as the optimisation tool in this work, because they have the distinct 'feature of multi-point local and global searches. Therefore, GA provide a better chance to obtain the global optimum solution. .' The aim of this work is to apply GA t

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8

Mejias, De Pernia Yolibeth. "Prediction of the Optimum Binder Content of Open-Graded Friction Course Mixtures Using Digital Image Processing." Scholar Commons, 2015. http://scholarcommons.usf.edu/etd/5888.

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Florida Department of Transportation (FDOT) has been using Open Graded Friction Course (OGFC) mixture to improve skid resistance of asphalt pavements under wet weather. The OGFC mixture design strongly depends on the Optimum Binder Content (OBC) which represents if the mixture has sufficient bonding between the aggregate and asphalt binder. At present, the FDOT designs OGFC mixtures using a pie plate visual draindown method (FM 5-588). In this method, the OBC is determined based on visual inspection of the asphalt binder draindown (ABD) configuration of three OGFC samples placed on pie plates

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Mathew, Sumi. "A method to identify the non-coding RNA gene for U1 RNA in species in which it has not yet been found." Thesis, University of Skövde, School of Humanities and Informatics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-37.

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<p>Background</p><p>Non coding RNAs are the RNA molecules that do not code for proteins but play structural, catalytic or regulatory roles in the organisms in which they are found. These RNAs generally conserve their secondary structure more than their primary sequence. It is possible to look for protein coding genes using sequence signals like promoters, terminators, start and stop codons etc. However, this is not the case with non coding RNAs since these signals are weakly conserved in them. Hence the situation with non coding RNAs is more challenging. Therefore a protocol is devised to iden

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10

Lucero, Aldo. "Compressing scientific data with control and minimization of the L-infinity metric under the JPEG 2000 framework." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2007. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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11

BERTRAND, JEAN-FRANCOIS. "Codage d'images par segmentation et separation en deux composantes : optimisation des performances d'un systeme de codage d'images monochromes." Rennes, INSA, 1987. http://www.theses.fr/1987ISAR0002.

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12

Toivonen, T. (Tuukka). "Efficient methods for video coding and processing." Doctoral thesis, University of Oulu, 2008. http://urn.fi/urn:isbn:9789514286957.

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Abstract This thesis presents several novel improvements to video coding algorithms, including block-based motion estimation, quantization selection, and video filtering. Most of the presented improvements are fully compatible with the standards in general use, including MPEG-1, MPEG-2, MPEG-4, H.261, H.263, and H.264. For quantization selection, new methods are developed based on the rate-distortion theory. The first method obtains locally optimal frame-level quantization parameter considering frame-wise dependencies. The method is applicable to generic optimization problems, including also

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13

Liu, Yuan. "Représentation parcimonieuse basée sur la norme ℓ₀ Mixed integer programming for sparse coding : application to image denoising Incoherent dictionary learning via mixed-integer programming and hybrid augmented Lagrangian". Thesis, Normandie, 2019. http://www.theses.fr/2019NORMIR22.

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Cette monographie traite du problème d’apprentissage de dictionnaire parcimonieux associé à la pseudo-norme ℓ₀. Ce problème est classiquement traité par une procédure de relaxation alternée itérative en deux phases : un codage parcimonieux (sparse coding) et une réactualisation du dictionnaire. Cependant, le problème d’optimisation associé à ce codage parcimonieux s’avère être non convexe et NP-difficile, ce qui a justifié la recherche de relaxations et d’algorithmes gloutons pour obtenir une bonne approximation de la solution globale du problème. A l’inverse, nous reformulons le problème comm

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Hong, Zhihong. "Robust Coding Methods For Space-Time Wireless Communications." NCSU, 2002. http://www.lib.ncsu.edu/theses/available/etd-20020117-144929.

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<p>HONG, ZHIHONG. Robust Coding Methods For Space-Time Wireless Communications. (Under the direction of Dr. Brian L. Hughes.)Space-time coding can exploit the presence of multiple transmit and receive antennasto increase diversity, spectral efficiency, and received power, to improvethe performance in wireless communication systems. Thus far, most work on space-time coding has assumed highly idealized channel fading conditions (e.g., quasi-static or ideal fast fading)as well as perfect channel state information at the receiver. Both of these assumptionsare often questionable in practice. In thi

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Maucho, Geoffrey Sunday. "Weighted distortion methods for error resilient video coding." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=110392.

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Wireless and Internet video applications are hampered by bit errors and packet errors, respectively. In addition, packet losses in best effort Internet applications limit video communication applications. Because video compression uses temporal prediction, compressed video is especially susceptible to the problem of transmission errors in one frame propagating into subsequent frames. It is therefore necessary to develop methods to improve the performance of compressed video in the face of channel impairments. Recent work in this area has focused on estimating the end-to-end distortion, which i

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Naghdinezhad, Amir. "Error resilient methods in scalable video coding (SVC)." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=121379.

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With the rapid development of multimedia technology, video transmission over unreliable channels like Internet and wireless networks, is widely used. Channel errors can result in a mismatch between the encoder and the decoder, and because of the predictive structures used in video coding, the errors will propagate both temporally and spatially. Consequently, the quality of the received video at the decoder may degrade significantly. In order to improve the quality of the received video, several error resilient methods have been proposed. Furthermore, in addition to compression efficiency and e

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17

Re', M. "Development of machine learning methods for the discrimination between coding and non-coding conserved sequences." Doctoral thesis, Università degli Studi di Milano, 2007. http://hdl.handle.net/2434/148316.

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In the last ten years, numerous complete and almost complete genome sequences have been made available to the research community but the completion of the inventory of coding genes of eukaryotic genomes at least has proved an elusive goal. Classical ab-initio gene prediction methods have been invaluable in the annotation of genome sequences, but show notable weaknesses with respect to genes with unusual structural features, while annotation on the basis of similarity to known genes does not allow the detection of genuinely novel genes. The identification of sequences under evolutionary constr

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18

Collin, Marie-France. "Analyse quantitative de visualisations d'écoulements par la mise au point d'une méthode de traitement d'images : application à la détermination du champ des vitesses." Poitiers, 1989. http://www.theses.fr/1989POIT2270.

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Developpement et essai d'une chaine de traitement et d'analyse d'images pour l'exploitation des cliches de visualisation d'ecoulement, obtenus par la technique des traceurs solides. Analyse des images numerisees par une methode de codages de contour. On considere la configuration des traces. Les traces juxtaposees sont identifiees et segmentees. Application a 4 cliches visualisant la brusque mise en translation d'un profil naca0012 en incidence fixe

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19

Guillen, Jorge Alejandro Butron. "Applying Multiscale Morphology Methods to Image Coding and Compression." Thesis, University of East Anglia, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.502558.

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This thesis examins the problem of efficient compression using graph-morphology operations and answers the question, 'can a lossless image compressor be developed using the information contained in the nodes of the sieve tree?' It shows how humans are sensible to the small scale contained in images and a new way of measuring image quality is introduced, showing that this method can be normalised for comparing the results of different image coders. It provides a review of the scale-space decomposition algorithm denominated sieve and the hierarchical structure that is obtained from applying this

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20

Chung, How James T. H. "Robust video coding methods for next generation communication networks." Thesis, University of Bristol, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364957.

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21

Leis, John W. "Spectral coding methods for speech compression and speaker identification." Thesis, Queensland University of Technology, 1998. https://eprints.qut.edu.au/36062/7/36062_Digitised_Thesis.pdf.

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This thesis investigates aspects of encoding the speech spectrum at low bit rates, with extensions to the effect of such coding on automatic speaker identification. Vector quantization (VQ) is a technique for jointly quantizing a block of samples at once, in order to reduce the bit rate of a coding system. The major drawback in using VQ is the complexity of the encoder. Recent research has indicated the potential applicability of the VQ method to speech when product code vector quantization (PCVQ) techniques are utilized. The focus of this research is the efficient representation, calcu

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22

Blasi, Saverio G. "High efficiency prediction methods for current and next generation video coding." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/26263.

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Consumption and production of video signals drastically changed in recent years. Due to the advances in digital consumer technology and the growing availability of fast and reliable internet connections, an increasing amount of digital video sequences are being produced, stored and shared every day in different parts of the world. Video signals are inherently larger in size than other types of multimedia signals. For this reason in order to allow transmission and storage of such data, more efficient compression technology is needed. In this thesis novel methods for enhancing the efficiency of

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23

Henderson, Daniel Adrian. "Modelling and analysis of non-coding DNA sequence data." Thesis, University of Newcastle Upon Tyne, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299427.

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24

Valtchev, Valtcho. "Discriminative methods in HMM-based speech recognition." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362814.

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25

Eddins, Steven L. "Subband analysis-synthesis and edge modeling methods for image coding." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/15697.

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26

Elangovan, Premkumar. "Novel source coding methods for optimising real time video codecs." Thesis, Bucks New University, 2009. http://bucks.collections.crest.ac.uk/9767/.

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The quality of the decoded video is affected by errors occurring in the various layers of the protocol stack. In this thesis, disjoint errors occurring in different layers of the protocol stack are investigated with the primary objective of demonstrating the flexibility of the source coding layer. In the first part of the thesis, the errors occurring in the editing layer, due to the coexistence of different video standards in the broadcast market, are addressed. The problems investigated are ‘Field Reversal’ and ‘Mixed Pulldown’. Field Reversal is caused when the interlaced video fields are no

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27

Yu, L. "Statistic oriented video coding and streaming methods with future insight." Thesis, University of Liverpool, 2016. http://livrepository.liverpool.ac.uk/3007276/.

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28

Yang, Dun-Jie, and 楊敦傑. "Low Power Bus Coding Method." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/47942938723440565953.

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碩士<br>國立交通大學<br>資訊工程系<br>89<br>Low power design is a more popular research goal. Consider the advantages of low power design. First power reduction can lengthen the life of battery. Second the heat of chip dissipated can be reduced such that package cost is also reduction. Finally the circuit is more reliability. For most embedded systems, we need high performance for various media applications therefore we need the wide system bus to raise the performance of system. However, the external system buses have three orders capacitance of internal bus and the power consumption on external bus is ov

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Chen, Bo-Jing, and 陳柏菁. "Binary Shape Coding Using Segment-Based Method." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/16847475102388921674.

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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>In this thesis, we propose a new technique for the lossless shapes coding while the boundary of a video object is extracted using eight-connected chain. The basic ideal is derived from IsCC [5]. The IsCC addressed a special contour shape referred to as the ideal four-connected chain and the decomposition of a contour shape as a sequence of turning points (TPs) and ideal chains. The definition of ideal four-connected chain gives that a chain only moves in two directions: right-down (left-up) and left-down (right-up). And, the TP is located between two succe

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Tsai, Hsin-Feng, and 蔡幸峰. "A Bit Rate Scalable CELP Coding Method." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/47270424925862588484.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>92<br>CELP (coded excitation linear prediction) has been the dominant speech coding scheme of various standards since it was proposed in 1984. MPEG-4 not only adopts CELP as the coding scheme but also provides a function of scalability. The function of scalability could decode higher quality speech signal by utilizing more parameters. MPEG-4 increases the quality of the decoded signal by means of the concept of “enhancement layer”. In order to overcome the drawback of the large bitrate step size of an enhancement layer, DPWBC was proposed. DPWBC adopts a suitable

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Lee, Chun-Ming, and 李俊明. "A Study on Error-Resilient Coding in MPEG-4 by Fast RS Coding Method." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/14640673737688573633.

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碩士<br>義守大學<br>資訊管理學系碩士班<br>90<br>This thesis proposes a Fast Reed-Solomon decoding method to improve the error-resilient coding of MPEG-4 for low-bit-rate audiovisual coding. The error-resilient tools adopted by MPEG-4 can be classified as follows: the resynchronization, the data partitioning, the reversible variable length coder (RVLC) of data recovery, the error concealment, and the header extension code (HEC). These tools detect and locate errors, support fast resynchronization, and prevent the loss of entire information. Typical decoders discard all data between the two resynchronization m

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Jia-He, Zhuang, and 莊家和. "Texture Feature Coding Method for Image Texture Analysis." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/37297947745685798101.

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碩士<br>南華大學<br>資訊管理學系碩士班<br>90<br>This paper introduces a new texture analysis method named Texture Feature Coding Method (TFCM). This method incorporates with the merits of both the gray-level co-occurrence matrix (GLCM) and texture spectrum (TS) methods. The texture feature number histogram and the texture feature number co-occurrence matrix are generated by TFCM for derived many useful texture feature descriptors. Three texture analysis methods, GLCM, TS, and cross-diagonal texture matrix (CDTM), are used to compare and evaluate the performance with TFCM in discriminating some of Brodatz’s n

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Lee, Allen, and 李宗憲. "A VQ Coding Based Method for Object Detection." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/92553801409712081969.

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"Multiple access and coding method for wireless ATM." 1999. http://library.cuhk.edu.hk/record=b5889952.

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by Cheng Siu Lung.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1999.<br>Includes bibliographical references (leaves 81-86).<br>Abstracts in English and Chinese.<br>ABBREVIATION --- p.3<br>INTRODUCTION --- p.9<br>Chapter 1.1 --- Wireless ATM for multimedia application --- p.9<br>Chapter 1.2 --- Challenges in Wireless ATM --- p.11<br>Chapter 1.3 --- Outline of thesis --- p.14<br>PREDICTIVE QUEUING MULTIPLE ACCESS --- p.17<br>Chapter 2.1 --- Introduction --- p.17<br>Chapter 2.2 --- Protocol for Mobile to Base --- p.20<br>Chapter 2.3 --- Scheduling Protocol at the Base Station --

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Hsieh, Hsueh-Lee, and 謝學禮. "Wireless Network Coding by Amplify-and-Forward Method." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/30438360762789413266.

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碩士<br>中原大學<br>電機工程研究所<br>95<br>It is well known that network coding can be used in wireless transmission to increase the network throughput and robustness. The intermediate node receives messages from its neighbors and then encodes the messages before it broadcasts them to neighbors. By such a way, messages can be exchanged with more efficiency. Basically, there are two kinds of methods to apply the network coding techniques. The first is called Decode-and-Forward (DF) method, in which the intermediate node decodes the received messages before its encoding process. The second is called Amplify

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"A Study on DNA Coding Method and Knowledge Discovery." Thesis, 1997. http://hdl.handle.net/2237/11177.

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吉川, 大弘, and Tomohiro YOSHIKAWA. "A Study on DNA Coding Method and Knowledge Discovery." Thesis, 1997. http://hdl.handle.net/2237/11177.

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Lai, Jui-Min, and 賴睿敏. "A VQ based coding method for license plate localization." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/f38hpx.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>95<br>The operation of a complete license plate recognition system includes three parts: license plate localization, character segmentation, and character identification. Among these three parts, license plate localization is relatively more difficult and complicated. Until now, differentiating background and real license plate images in real and random traffic conditions remains to be a very difficult task. Via a VQ coding technique, this study introduces a method resolve this problem. As a preprocessing step, this method first converts an image to be classifie

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Shen, Yu-hsuan, and 沈佑軒. "Efficient Up-Sampling Method for Asymmetric Stereoscopic Video Coding." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/keyh7r.

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碩士<br>國立臺灣科技大學<br>資訊工程系<br>100<br>In three-dimensional television (3DTV), to reduce the encoding time and the bitrate required for transmitting 3D video sequences over bandwidth-limited channels, each right-view frame of a stereoscopic sequence is of quarter size of the leftview frame. In this thesis, we propose an efficient up-sampling method for scaling up the right-view frame such that the resized right-view frame and the left-view frame are both the same. The proposed method first interpolates missing pixels in the right-view frame by using the Wiener filter. Then an inter-view prediction

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Tzeng, Rui-Hong, and 曾睿弘. "Study on Fixed-Codebook Search Method for CELP Coding." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/15128261834601357234.

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碩士<br>中原大學<br>電機工程研究所<br>93<br>Abstract G.729 is an ITU-T speech coding standard which is popularly used in internet speech applications in recent years. However, the complexity of the speech coding is quite high. In this thesis, we try to reduce the coding complexity while maintaining the adequate speech quality. In the encoding process of G.729, the complexity of fixed-codebook search occupies about 21% of whole encoding complexity. We focus on this part and propose a search method called pre-selected-pulses replacement method to replace the focused search method in G.729 to reduce the comp

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Chang, Wen-Sheng, and 張文聖. "Distributed Video Coding Using Field Motion-Compensated Interpolation Method." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/85874086629332234627.

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碩士<br>國立清華大學<br>電機工程學系<br>95<br>Different from conventional video coding, which usually employs sophisticated prediction loop to exploit the statistics at the encoder, distributed video coding (DVC) provides another way to perform efficient compression. In DVC, the statistics are exploited at the decoder to make the encoder simpler and thus it is well-suited for applications where the power and complexity are scarce sources at the encoder, e.g., wireless video phone. Wyner-Ziv video coding is a particular case of DVC that it encodes a frame independently with lossy coding, but decodes them joi

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Yang, Fengming, and 楊峰銘. "An Adaptive Frame Buffer Compression Method for Video Coding." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/64455478889930286988.

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碩士<br>國立中正大學<br>資訊工程研究所<br>100<br>In this thesis, we study an adaptive data compression for H.264 and MVC (Multi-view Video Coding) encoders. We propose an adaptive data compression according to intra mode that completely lowers data bandwidth. Based on the method, we developed data compression algorithms for H.264/MVC. By using high resolution video like Full-HD and QFHD, the H.264/MVC encoders achieve a huge data reduction proportional to the reference frame used. Finally, we integrate the proposed data compression method into H.264 and MVC video encoding flow for the evaluation of performan

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Zeng, Wei-Ting, and 曾尉庭. "Study on Waveform Coding with Analysis by Synthesis Method." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/63931261186508094702.

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碩士<br>中原大學<br>通訊工程碩士學位學程<br>100<br>Waveform coding is a coding technique in the time domain for the signal coding. It is commonly used due to its simplicity and good performance. Common waveform coding includes PCM, ADPCM, etc. Analysis by Synthesis (ABS) is another coding technique which is commonly used in model-based speech coding. The key is to choose a good parameter combination from large possible candidates by using synthesis method. In 2006, Shin and Kim [2] proposed a method to improve the coding performance of ADPCM by using ABS concept. Later, Yang and Wang [4] proposed another meth

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"A blind channel estimation method for space-time coding systems." 2003. http://library.cuhk.edu.hk/record=b5891466.

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Zheng Ming.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2003.<br>Includes bibliographical references (leaves 63-66).<br>Abstracts in English and Chinese.<br>Chapter 1. --- Introduction --- p.1<br>Chapter 1.1 --- Review of space-time coding and blind channel estimation --- p.1<br>Chapter 1.2 --- Introduction of space-time coding system --- p.4<br>Chapter 1.3 --- Diversity gain of space-time coding --- p.6<br>Chapter 1.4 --- Re-estimation --- p.7<br>Chapter 1.5 --- Notations --- p.8<br>Chapter 1.6 --- Outline of thesis --- p.8<br>Chapter 2. --- Estimation for BPSK Signals --- p

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Lin, Sheng-Chien, and 林聖艦. "A Wavelet-based Distributed Video Coding Method with Compressive Sensing." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/58122027439506143308.

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碩士<br>國立清華大學<br>資訊工程學系<br>98<br>In the modern video compression techniques, for achieving high compressive rate, the encoder would exploit all spatial (intra coding) and temporal (inter coding) correlation on every frame. The complexity to decode a frame is much less than to encode one. However, in some applications we would adopt some devices which lack memory and computing ability. Distributed Video Coding (DVC) is helpful in this situation. Based on the theoretic results of Distributed Source Coding (DSC), DVC focuses on a lower complexity encoder and a powerful decoder. This feature is ver

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Huang, Hung-Chun, and 黃鴻鈞. "A Fast 1-D Segment Coding Method for Color Images." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/86294477961054411338.

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碩士<br>國立成功大學<br>電腦與通信工程研究所<br>97<br>Nowadays, compression techniques have become more and more important in the industrial applications. In order to efficiently reduce the cost in hardware, an ideal compression method is to process the image line by line, separate each line in segments, and compress each segment independently. Besides, there is no extra information used in the encoding and decoding, and eventually the bit stream is outputted with a fixed compression ratio. Recently, there is an algorithm which performs well in related researches. However, its high complexity makes it difficult

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Chen, Jing-Heng, and 陳敬恆. "Fabrication of Computer Generated Hologram with a New Coding Method." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/98473673932529272835.

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碩士<br>國立交通大學<br>光電工程所<br>87<br>Firstly, the coding principle of this new coding method for fabricating computer generated holograms is investigated. And its integrity is shown according to the diffraction theory. Next, a fanout optical element is designed and its performance is simulated with this method. Then, this fanout optical element is fabricated on a fused silicon substrate with lithographic processes, which are often used in semiconductor industries. Finally, a light beam coming from a He-Ne laser is incident on this fanout optical element to test its performance. The diffra

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Wang, Wen-Ching, and 王文慶. "The application of spatial-temporal gradient method on image coding." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/35221139918112634829.

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碩士<br>國立交通大學<br>資訊工程研究所<br>81<br>Motion estimation is the major concept for applying 1- D and 2-D signal processing techniques into 3-D image sequ ence processing.Traditionally,the full search block matchi ng method is the most widely used motion estimation method .In this paper, the spatial-temporal gradient method is con sidered for the motion estimation in image coding. Accordi ng to different motion behaviors,the motion parameters are described by translation model and Affine model. Bec

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LIU, HUI-TANG, and 劉輝堂. "A method for digital image coding with high compression ratio." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/22526252403728701410.

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Jiang, Wan-Feng, and 江宛峯. "A Distributed Source Coding based Encrypted Graylevel ImageLossless Compression Method." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/70582994625104712724.

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碩士<br>國立臺灣大學<br>資訊工程學研究所<br>103<br>This thesis presents an encrypted graylevel images compression system, where a data sender (DS) or creator, without sufficient storage space and computing power, wants to transmits the encrypted images to a trusted data receiver (DR), through a untrusted channel run by a service provider (SP) who has to compress the images for saving the transmission bandwidth while the images might be encrypted by DS beforehand. Most of related works designed a special encryption function which leaked a little information that were useful for compression but rarely told the

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