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Dissertations / Theses on the topic 'Data compression (Telecommunication)'

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Published: 4 June 2021

Last updated: 29 July 2024

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1

Walker, Wendy Tolle 1959. "Video data compression for telescience." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276830.

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This paper recommends techniques to use for data compression of video data used to point a telescope and from a camera observing a robot, for transmission from the proposed U.S. Space Station to Earth. The mathematical basis of data compression is presented, followed by a general review of data compression techniques. A technique that has wide-spread use in data compression of videoconferencing images is recommended for the robot observation data. Bit rates of 60 to 400 kbits/sec can be achieved. Several techniques are modelled to find a best technique for the telescope data. Actual starfield

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2

Aydinoğlu, Behçet Halûk. "Stereo image compression." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/15447.

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3

Chaulklin, Douglas Gary. "Evaluation of ANSI compression in a bulk data file transfer system." Master's thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-01202010-020213/.

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4

Chen, Mo. "Data compression for inference tasks in wireless sensor networks." Diss., Online access via UMI:, 2006.

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Thesis (Ph. D.)--State University of New York at Binghamton, Department of Electrical Engineering, Thomas J. Watson School of Engineering and Applied Science, 2006.<br>Includes bibliographical references.

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5

Goodenow, Daniel P. "A reference guide to JPEG compression /." Online version of thesis, 1993. http://hdl.handle.net/1850/11714.

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6

Jones, Greg 1963-2017. "RADIX 95n: Binary-to-Text Data Conversion." Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc500582/.

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This paper presents Radix 95n, a binary to text data conversion algorithm. Radix 95n (base 95) is a variable length encoding scheme that offers slightly better efficiency than is available with conventional fixed length encoding procedures. Radix 95n advances previous techniques by allowing a greater pool of 7-bit combinations to be made available for 8-bit data translation. Since 8-bit data (i.e. binary files) can prove to be difficult to transfer over 7-bit networks, the Radix 95n conversion technique provides a way to convert data such as compiled programs or graphic images to printable ASC

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7

Srinivas, Bindignavile S. "Progressive image and video transmission with error concealment on burst error channels and lossy packet networks /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/6015.

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8

Subramaniam, Suresh. "All-optical networks with sparse wavelength conversion /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/6032.

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9

Goldschneider, Jill R. "Lossy compression of scientific data via wavelets and vector quantization /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/5881.

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10

Smith, Craig M. "Efficient software implementation of the JBIG compression standard /." Online version of thesis, 1993. http://hdl.handle.net/1850/11713.

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11

Johnson, Mary Holland. "Low bit rate compression of Marine imagery using fast ECVQ /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/5998.

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12

Lum, Randall M. G. "Differential pulse code modulation data compression." Scholarly Commons, 1989. https://scholarlycommons.pacific.edu/uop_etds/2181.

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With the requirement to store and transmit information efficiently, an ever increasing number of uses of data compression techniques have been generated in diverse fields such as television, surveillance, remote sensing, medical processing, office automation, and robotics. Rapid increases in processing capabilities and the speed of complex integrated circuits make data compression techniques a prime candidate for application in the areas mentioned above. This report addresses, from a theoretical viewpoint, three major data compression techniques, Pixel Coding, Predictive Coding, and Transform

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13

Tsoi, Yiu-lun Kelvin, and 蔡耀倫. "Real-time scheduling techniques with QoS support and their applications in packet video transmission." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31221786.

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14

Teng, Yan. "Objective speech intelligibility assessment using speech recognition and bigram statistics with application to low bit-rate codec evaluation." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1456283581&sid=5&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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15

Danyali, Habibollah. "Highly scalable wavelet image and video coding for transmission over heterogeneous networks." Access electronically, 2004. http://www.library.uow.edu.au/adt-NWU/public/adt-NWU20041027.115306/index.html.

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16

Chu, Chung Cheung. "Tree encoding of speech signals at low bit rates." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65459.

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17

Li, Jingyun. "Lapped transforms based on DLS and DLC basis functions and applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ30101.pdf.

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18

Khan, Mohammad Asmat Ullah. "Trellis-coded residual vector quantization." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/13734.

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19

Wang, Huan-sheng. "Fast search techniques for video motion estimation and vector quantization." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/13918.

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20

Chan, Ho Yin. "Graph-theoretic approach to the non-binary index assignment problem /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?ECED%202008%20CHAN.

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21

Hu, Yichuan. "Analog non-linear coding for improved performance in compressed sensing." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 76 p, 2009. http://proquest.umi.com/pqdweb?did=1885755731&sid=5&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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22

Tang, Sai-kin Owen. "Implementation of Low bit-rate image codec /." [Hong Kong] : University of Hong Kong, 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B14804402.

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23

Nolte, Ernst Hendrik. "Image compression quality measurement : a comparison of the performance of JPEG and fractal compression on satellite images." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51796.

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Thesis (MEng)--Stellenbosch University, 2000.<br>ENGLISH ABSTRACT: The purpose of this thesis is to investigate the nature of digital image compression and the calculation of the quality of the compressed images. The work is focused on greyscale images in the domain of satellite images and aerial photographs. Two compression techniques are studied in detail namely the JPEG and fractal compression methods. Implementations of both these techniques are then applied to a set of test images. The rest of this thesis is dedicated to investigating the measurement of the loss of quality that was

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24

Dong, Liqin Carleton University Dissertation Engineering Electrical. "Compressed voice in integrated services frame relay networks." Ottawa, 1992.

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25

Klausutis, Timothy J. "Adaptive lapped transforms with applications to image coding." Diss., Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/15925.

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26

Teixeira, Márlon Amaro Coelho. "Novas abordagens para compressão de documentos XML." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/259454.

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Orientador: Leonardo de Souza Mendes<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-19T13:11:21Z (GMT). No. of bitstreams: 1 Teixeira_MarlonAmaroCoelho_M.pdf: 1086156 bytes, checksum: 1acfaaf659e42716010448c6781b6313 (MD5) Previous issue date: 2011<br>Resumo: Atualmente, alguns dos fatores que determinam o sucesso ou fracasso das corporações estão ligados a velocidade e a eficiência da tomada de suas decisões. Para que estes quesitos sejam alcançados, a integração dos sistemas computaciona

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27

Engel, Adalbert. "Bandwidth management and quality of service." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2000. https://ro.ecu.edu.au/theses/1540.

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With the advent of bandwidth-hungry video and audio applications, demand for bandwidth is expected to exceed supply. Users will require more bandwidth and, as always, there are likely to be more users. As the Internet user base becomes more diverse, there is an increasing perception that Internet Service Providers (ISPs) should be able to differentiate between users, so that the specific needs of different types of users can be met. Differentiated services is seen as a possible solution to the bandwidth problem. Currently, however, the technology used on the Internet differentiates neither bet

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Nzeugaing, Gutembert Nganpet. "Image compression system for a 3u cubesat." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/1085.

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Thesis submitted in partial fulfilment of the requirements for the degree of Master of Technology: Electrical Engineering in the Faculty of Engineering at the Cape Peninsula University of Technology 2013<br>Earth observation satellites utilise sensors or cameras to capture data or images that are relayed to the ground station(s). The ZACUBE-02 CubeSat currently in development at the French South African Institute of Technology (F’SATI) contains a high resolution 5 megapixel on-board camera. The purpose of the camera is to capture images of Earth and relay them to the ground station once commun

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29

鄧世健 and Sai-kin Owen Tang. "Implementation of Low bit-rate image codec." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31212670.

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30

Muller, Rikus. "A study of image compression techniques, with specific focus on weighted finite automata." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1128.

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31

Sefara, Mamphoko Nelly. "Design of a forward error correction algorithm for a satellite modem." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52181.

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Thesis (MScEng)--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: One of the problems with any deep space communication system is that information may be altered or lost during transmission due to channel noise. It is known that any damage to the bit stream may lead to objectionable visual quality distortion of images at the decoder. The purpose of this thesis is to design an error correction and data compression algorithm for image protection, which will allow the communication bandwidth to be better utilized. The work focuses on Sunsat (Stellenbosch Satellite) images as test ima

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32

Araujo, André Filgueiras de. "Uma proposta de estimação de movimento para o codificador de vídeo Dirac." [s.n.], 2010. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261689.

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Orientador: Yuzo Iano<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Elétrica e de Computação<br>Made available in DSpace on 2018-08-16T03:46:01Z (GMT). No. of bitstreams: 1 Araujo_AndreFilgueirasde_M.pdf: 3583920 bytes, checksum: afbfc9cf561651fe74a6a3d075474fc8 (MD5) Previous issue date: 2010<br>Resumo: Este trabalho tem como objetivo principal a elaboração de um novo algoritmo responsável por tornar mais eficiente a estimação de movimento do codec Dirac. A estimação de movimento é uma etapa crítica à codificação de vídeo, na qual se encontra a maior

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33

Sankara, Krishnan Shivaranjani. "Delay sensitive delivery of rich images over WLAN in telemedicine applications." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29673.

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Thesis (M. S.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Jayant, Nikil; Committee Member: Altunbasak, Yucel; Committee Member: Sivakumar, Raghupathy. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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34

Cao, Libo. "Nonlinear Wavelet Compression Methods for Ion Analyses and Dynamic Modeling of Complex Systems." Ohio University / OhioLINK, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1107790393.

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35

Silva, Fernando Silvestre da. "Procedimentos para tratamento e compressão de imagens e video utilizando tecnologia fractal e transformadas wavelet." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/260581.

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Orientador: Yuzo Iano<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-05T13:46:30Z (GMT). No. of bitstreams: 1 Silva_FernandoSilvestreda_D.pdf: 35017484 bytes, checksum: fb460a6a42e44fe0a50e94599ac027fc (MD5) Previous issue date: 2005<br>Resumo: A excelente qualidade visual e taxa de compressão dos codificadores fractais de imagem tem aplicações limitadas devido ao exaustivo tempo de codificação inerente. Esta pesquisa apresenta um novo codificador híbrido de imagens que aplica a velocidade da tr

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36

Zhang, Jian Electrical Engineering Australian Defence Force Academy UNSW. "Error resilience for video coding services over packet-based networks." Awarded by:University of New South Wales - Australian Defence Force Academy. School of Electrical Engineering, 1999. http://handle.unsw.edu.au/1959.4/38652.

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Error resilience is an important issue when coded video data is transmitted over wired and wireless networks. Errors can be introduced by network congestion, mis-routing and channel noise. These transmission errors can result in bit errors being introduced into the transmitted data or packets of data being completely lost. Consequently, the quality of the decoded video is degraded significantly. This thesis describes new techniques for minimising this degradation. To verify video error resilience tools, it is first necessary to consider the methods used to carry out experimental measurements.

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37

Ali, Khan Syed Irteza. "Classification using residual vector quantization." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50300.

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Residual vector quantization (RVQ) is a 1-nearest neighbor (1-NN) type of technique. RVQ is a multi-stage implementation of regular vector quantization. An input is successively quantized to the nearest codevector in each stage codebook. In classification, nearest neighbor techniques are very attractive since these techniques very accurately model the ideal Bayes class boundaries. However, nearest neighbor classification techniques require a large size of representative dataset. Since in such techniques a test input is assigned a class membership after an exhaustive search the entire training

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Natu, Ambarish Shrikrishna Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Error resilience in JPEG2000." Awarded by:University of New South Wales. Electrical Engineering and Telecommunications, 2003. http://handle.unsw.edu.au/1959.4/18835.

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The rapid growth of wireless communication and widespread access to information has resulted in a strong demand for robust transmission of compressed images over wireless channels. The challenge of robust transmission is to protect the compressed image data against loss, in such a way as to maximize the received image quality. This thesis addresses this problem and provides an investigation of a forward error correction (FEC) technique that has been evaluated in the context of the emerging JPEG2000 standard. Not much effort has been made in the JPEG2000 project regarding error resilience. Th

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Ribeiro, Moises Vidal. "Tecnicas de processamento de sinais aplicadas a transmissão de dados via rede eletrica e ao monitoramento da qualidade de energia." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261263.

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Orientador: João Marcos Travassos Romano<br>Tese (doutorado) - Universidade Estadual de Campinas. Faculdade de Engenharia Eletrica e de Computação<br>Made available in DSpace on 2018-08-04T03:58:12Z (GMT). No. of bitstreams: 1 Ribeiro_MoisesVidal_D.pdf: 5330417 bytes, checksum: ebf89b90c9327ce0ba7f3c169b5e260f (MD5) Previous issue date: 2005<br>Resumo: A presente tese tem por objetivo propor e discutir o uso de algumas técnicas de processamento de sinais e de inteligência computacional para a melhoria da transmissão digital de dados via redes elétricas e da análise da qualidade da energia el

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40

"A robust low bit rate quad-band excitation LSP vocoder." Chinese University of Hong Kong, 1994. http://library.cuhk.edu.hk/record=b5888223.

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by Chiu Kim Ming.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 1994.<br>Includes bibliographical references (leaves 103-108).<br>Chapter Chapter 1 --- Introduction --- p.1<br>Chapter 1.1 --- Speech production --- p.2<br>Chapter 1.2 --- Low bit rate speech coding --- p.4<br>Chapter Chapter 2 --- Speech analysis & synthesis --- p.8<br>Chapter 2.1 --- Linear prediction of speech signal --- p.8<br>Chapter 2.2 --- LPC vocoder --- p.11<br>Chapter 2.2.1 --- Pitch and voiced/unvoiced decision --- p.11<br>Chapter 2.2.2 --- Spectral envelope representation --- p.15<br>Chapter 2.3 --- Ex

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41

Menezes, Vinod. "Video Compression Through Spatial Frequency Based Motion Estimation And Compensation." Thesis, 1996. https://etd.iisc.ac.in/handle/2005/1900.

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42

Menezes, Vinod. "Video Compression Through Spatial Frequency Based Motion Estimation And Compensation." Thesis, 1996. http://etd.iisc.ernet.in/handle/2005/1900.

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43

"Associative neural networks: properties, learning, and applications." Chinese University of Hong Kong, 1994. http://library.cuhk.edu.hk/record=b5888340.

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by Chi-sing Leung.<br>Thesis (Ph.D.)--Chinese University of Hong Kong, 1994.<br>Includes bibliographical references (leaves 236-244).<br>Chapter 1 --- Introduction --- p.1<br>Chapter 1.1 --- Background of Associative Neural Networks --- p.1<br>Chapter 1.2 --- A Distributed Encoding Model: Bidirectional Associative Memory --- p.3<br>Chapter 1.3 --- A Direct Encoding Model: Kohonen Map --- p.6<br>Chapter 1.4 --- Scope and Organization --- p.9<br>Chapter 1.5 --- Summary of Publications --- p.13<br>Chapter I --- Bidirectional Associative Memory: Statistical Proper- ties and Learning --- p.1

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44

Thanh, V. T. Kieu(Vien Tat Kieu). "Post-processing of JPEG decompressed images." Thesis, 2002. https://eprints.utas.edu.au/22088/1/whole_ThanhVienTatKieu2002_thesis.pdf.

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45

Bashala, Jenny Mwilambwe. "Development of a new image compression technique using a grid smoothing technique." 2013. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001112.

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M. Tech. Electrical Engineering.<br>Aims to implement a lossy image compression scheme that uses a graph-based approach. On the one hand, this new method should reach high compression rates with good visual quality, while on the other hand it may lead to the following sub-problems:efficient classification of image data with the use of bilateral mesh filtering ; Transformation of the image into a graph with grid smoothing ; reduction of the graph by means of mesh decimation techniques ; reconstruction process of the reduced graph into an image and quality analysis of the reconstructed images.

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46

"Image coding with a lapped orthogonal transform." Chinese University of Hong Kong, 1993. http://library.cuhk.edu.hk/record=b5887718.

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by Patrick Chi-man Fung.<br>Thesis (M.Sc.)--Chinese University of Hong Kong, 1993.<br>Includes bibliographical references (leaves 57-58).<br>LIST OF FIGURES<br>LIST OF IMAGES<br>LIST OF TABLES<br>NOTATIONS<br>Chapter 1 --- INTRODUCTION --- p.1<br>Chapter 2 --- THEORY --- p.3<br>Chapter 2.1 --- Matrix Representation of LOT --- p.3<br>Chapter 2.2 --- Feasibility of LOT --- p.5<br>Chapter 2.3 --- Properties of Good Feasible LOT --- p.6<br>Chapter 2.4 --- An Optimal LOT --- p.7<br>Chapter 2.5 --- Approximation of an Optimal LOT --- p.10<br>Chapter 2.6 --- Representation of an Approximately

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Natu, Ambarish Shrikrishna. "Error resilience in JPEG2000 /." 2003. http://www.library.unsw.edu.au/~thesis/adt-NUN/public/adt-NUN20030519.163058/index.html.

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Bhutani, Meeta. "Comparison of DPCM and Subband Codec performance in the presence of burst errors." Thesis, 1998. http://hdl.handle.net/1957/33508.

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This thesis is a preliminary study of the relative performance of the major speech compression techniques, Differential Pulse Code Modulation (DPCM) and Subband Coding (SBC) in the presence of transmission distortion. The combined effect of the channel distortions and the channel codec including error correction is represented by bursts of bit errors. While compression is critical since bandwidth is scarce in a wireless channel, channel distortions are greater and less predictable. Little to no work has addressed the impact of channel errors on perceptual quality of speech due to the complexit

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49

McLaren, David L(David Lionel). "Video and image coding for broadband integrated services digital networks." Thesis, 1992. https://eprints.utas.edu.au/20309/1/whole_McLarenDavidLionel1993_thesis.pdf.

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The growing demand for visual telecommunication services over the last decade has greatly increased the need for efficient image coding and compression schemes. The work presented in this thesis examines several aspects of the problem of coding and compressing the various image and video-based services which are likely to utilize Broadband Integrated Services Digital Networks (BISDNs) in the future. This research has two major thrusts. The first is the development of a general-purpose, high-performance and high-quality image coding and compression scheme for these broadband-based visual servic

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Varshneya, Virendra K. "Distributed Coding For Wireless Sensor Networks." Thesis, 2005. https://etd.iisc.ac.in/handle/2005/1409.

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