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Tesi sul tema "JPEG2000"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

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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Gupta, Amit Kumar Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Hardware optimization of JPEG2000." Awarded by:University of New South Wales. School of Electrical Engineering and Telecommunications, 2006. http://handle.unsw.edu.au/1959.4/30581.

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The Key algorithms of JPEG2000, the new image compression standard, have high computational complexity and thus present challenges for efficient implementation. This has led to research on the hardware optimization of JPEG2000 for its efficient realization. Luckily, in the last century the growth in Microelectronics allows us to realize dedicated ASIC solutions as well as hardware/software FPGA based solutions for complex algorithms such as JPEG2000. But an efficient implementation within hard constraints of area and throughput, demands investigations of key dependencies within the JPEG2000 sy

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Dyer, Michael Ian Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Hardware Implementation Techniques for JPEG2000." Awarded by:University of New South Wales. Electrical Engineering and Telecommunications, 2007. http://handle.unsw.edu.au/1959.4/30510.

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JPEG2000 is a recently standardized image compression system that provides substantial improvements over the existing JPEG compression scheme. This improvement in performance comes with an associated cost in increased implementation complexity, such that a purely software implementation is inefficient. This work identifies the arithmetic coder as a bottleneck in efficient hardware implementations, and explores various design options to improve arithmetic coder speed and size. The designs produced improve the critical path of the existing arithmetic coder designs, and then extend the coder thro

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4

Oh, Han. "Perceptual Image Compression using JPEG2000." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/202996.

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Image sizes have increased exponentially in recent years. The resulting high-resolution images are typically encoded in a lossy fashion to achieve high compression ratios. Lossy compression can be categorized into visually lossless and visually lossy compression depending on the visibility of compression artifacts. This dissertation proposes visually lossless coding methods as well as a visually lossy coding method with perceptual quality control. All resulting codestreams are JPEG2000 Part-I compliant.Visually lossless coding is increasingly considered as an alternative to numerically lossles

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5

Aulí, Llinàs Francesc. "Model-Based JPEG2000 rate control methods." Doctoral thesis, Universitat Autònoma de Barcelona, 2006. http://hdl.handle.net/10803/5806.

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Aquesta recerca està centrada en l'escalabilitat qualitativa de l'estàndard de compressió d'imatges JPEG2000. L'escalabilitat qualitativa és una característica fonamental que permet el truncament de la tira de bits a diferents punts sense penalitzar la qualitat de la imatge recuperada. L'escalabilitat qualitativa és també fonamental en transmissions d'imatges interactives, ja que permet la transmissió de finestres d'interès a diferents qualitats. <br/>El JPEG2000 aconsegueix escalabilitat qualitativa a partir del mètode de control de factor de compressió utilitzat en el procés de compressió, q

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6

Nilsson, Per. "Hardware / Software co-design for JPEG2000." Thesis, Linköping University, Department of Electrical Engineering, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5796.

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<p>For demanding applications, for example image or video processing, there may be computations that aren’t very suitable for digital signal processors. While a DSP processor is appropriate for some tasks, the instruction set could be extended in order to achieve higher performance for the tasks that such a processor normally isn’t actually design for. The platform used in this project is flexible in the sense that new hardware can be designed to speed up certain computations.</p><p>This thesis analyzes the computational complex parts of JPEG2000. In order to achieve sufficient performance for

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7

Pu, Lingling. "Joint Source/Channel Coding For JPEG2000." Diss., The University of Arizona, 2007. http://hdl.handle.net/10150/194377.

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In today's world, demands of digital multimedia services are growing tremendously, together with the development of new communication technologies and investigation of new transmission media. Two common problems encountered in multimedia services are unreliable transmission channels and limited resources. This dissertation investigates advanced source coding and error control techniques, and is dedicated to designing joint source-channel coding schemes for robust image/video transmission. Error resilience properties of JPEG2000 codestreams are investigated first, and an LDPC-based joint itera

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8

Narayanan, Barath Narayanan. "Multiframe Super Resolution with JPEG2000 Compressed Images." University of Dayton / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1365597593.

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9

Lucking, David Joseph. "FPGA Implementation of the JPEG2000 MQ Decoder." University of Dayton / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1272050082.

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10

Yeung, Yick Ming. "Fast rate control for JPEG2000 image coding /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202003%20YEUNG.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003.<br>Includes bibliographical references (leaves 63-65). Also available in electronic version. Access restricted to campus users.

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11

Wu, Zhenyu, Ali Bilgin, and Michael W. Marcellin. "JOINT SOURCE/CHANNEL CODING FOR TRANSMISSION OF MULTIPLE SOURCES." International Foundation for Telemetering, 2005. http://hdl.handle.net/10150/604932.

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ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>A practical joint source/channel coding algorithm is proposed for the transmission of multiple images and videos to reduce the overall reconstructed source distortion at the receiver within a given total bit rate. It is demonstrated that by joint coding of multiple sources with such an objective, both improved distortion performance as well as reduced quality variation can be achieved at the s

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12

Muñoz, Gómez Juan. "Contributions to computed tomography image coding for JPEG2000." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/129099.

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Avui dia, gràcies als avanços en la ciència mèdica, existeixen diverses tècniques d’imatges mèdiques destinades a tractar de revelar, diagnosticar o examinar una malaltia. Moltes d’aquestes tècniques produeixen grans quantitats de dades, especialment les modalitats de tomografia com- putada (CT), imatges per ressonància magnètica (MRI) i tomografia per emissió de positrons (PET). Per gestionar aquestes dades, els centres mèdics utilitzen PACS i l’estàndard DICOM per emmagatzemar, recuperar, distribuir i visualitzar imatges mèdiques. Com a resultat de l’alt cost d’emmagatzematge i transmi

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13

Oh, Han, and Yookyung Kim. "Low-Complexity Perceptual JPEG2000 Encoder for Aerial Images." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595684.

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ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada<br>A highly compressed image inevitably has visible compression artifacts. To minimize these artifacts, many compression algorithms exploit the varying sensitivity of the human visual system (HVS) to different frequencies. However, this sensitivity has typically been measured at the near-threshold level where distortion is just noticeable. Thus, it is unclear that the same sensitivity applies at the supra-thre

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14

Monteagudo, Pereira José Lino. "Preemptive Strategies for Data Transmission through JPEG2000 Interactiive Protocol." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/125921.

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Hoy en día, con el desarrollo de las tecnologías de la información y las comunicaciones, las imágenes son ampliamente utilizadas en muchos ámbitos de nuestra vida. Cuando se comparten o transmiten imágenes, el consumo de ancho de banda de la red es importante, especialmente para imágenes de gran resolución. En un escenario cliente-servidor, el consumo de ancho de banda aumenta con el número de imágenes solicitadas por el usuario y con el número de usuarios. Por lo tanto, se necesitan estrategias de transmisión eficientes para reducir los costes de transmisión y los tiempos de respuesta de los

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15

Jiménez, Rodríguez Leandro. "Interactive transmission and visually lossless strategies for JPEG2000 imagery." Doctoral thesis, Universitat Autònoma de Barcelona, 2014. http://hdl.handle.net/10803/283654.

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Cada dia, vídeos i imatges es transmeten per Internet. La compressió d’imatges permet reduir la quantitat total de dades transmeses i accelera la seva entrega. En escenaris de vídeo-sota-demanda, el vídeo s’ha de transmetre el més ràpid possible utilitzant la capacitat disponible del canal. En aquests escenaris, la compressió d’imatges es mandatària per transmetre el més ràpid possible. Comunament, els vídeos són codificats permeten pèrdua de qualitat en els fotogrames, el que es coneix com ha compressió amb pèrdua. Els mètodes de compressió amb pèrdua són els més utilitzats per transmet

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16

Jagiello, Kristin, Mahmut Zafer Aydin, and Wei-Ren Ng. "Joint JPEG2000/LDPC Code System Design for Image Telemetry." International Foundation for Telemetering, 2008. http://hdl.handle.net/10150/606217.

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ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California<br>This paper considers the joint selection of the source code rate and channel code rate in an image telemetry system. Specifically considered is the JPEG2000 image coder and an LDPC code family. The goal is to determine the optimum apportioning of bits between the source and channel codes for a given channel signal-to-noise ratio and total bit rate, R(total). Optimality is in the

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17

Mendoza, Jose Antonio. "Hardware and Software Codesign of a JPEG2000 Watermarking Encoder." Thesis, University of North Texas, 2008. https://digital.library.unt.edu/ark:/67531/metadc9752/.

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Analog technology has been around for a long time. The use of analog technology is necessary since we live in an analog world. However, the transmission and storage of analog technology is more complicated and in many cases less efficient than digital technology. Digital technology, on the other hand, provides fast means to be transmitted and stored. Digital technology continues to grow and it is more widely used than ever before. However, with the advent of new technology that can reproduce digital documents or images with unprecedented accuracy, it poses a risk to the intellectual rights of

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18

Goudia, Dalila. "Tatouage conjoint a la compression d'images fixes dans JPEG2000." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20198.

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Les technologies numériques et du multimédia ont connu de grandes avancées ces dernières années. La chaîne de transmission des images est constituée de plusieurs traitements divers et variés permettant de transmettre un flux de données toujours plus grand avec toujours plus de services à la clé. Nous citons par exemple, la compression, l'augmentation de contenu, la confidentialité, l'intégrité et l'authenticité des images pendant leur transmission. Dans ce contexte, les approches conjointes ont suscité un intérêt certain de la part de la communauté du traitement d'images car elles permettent d

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19

Омельченко, А. В., Р. В. Самарський та С. А. Наталюк. "Аналіз підходів до контролю завантаженості мережі". Thesis, Scientific Publishing Center "Sci-conf.com.ua", 2021. https://openarchive.nure.ua/handle/document/16464.

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20

Halsteinli, Erlend. "Real-Time JPEG2000 Video Decoding on General-Purpose Computer Hardware." Thesis, Norwegian University of Science and Technology, Department of Electronics and Telecommunications, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-8996.

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<p>There is widespread use of compression in multimedia content delivery, e.g. within video on demand services and transport links between live events and production sites. The content must undergo compression prior to transmission in order to deliver high quality video and audio over most networks, this is especially true for high definition video content. JPEG2000 is a recent image compression standard and a suitable compression algorithm for high definition, high rate video. With its highly flexible embedded lossless and lossy compression scheme, JPEG2000 has a number of advantages over e

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21

Pu, Lingling, Zhenyu Wu, Ali Bilgin, Michael W. Marcellin, and Bane Vasic. "LDPC-BASED ITERATIVE JOINT SOURCE/CHANNEL DECODING SCHEME FOR JPEG2000." International Foundation for Telemetering, 2004. http://hdl.handle.net/10150/605781.

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International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California<br>This paper presents a joint source-channel decoding scheme based on a JPEG2000 source coder and an LDPC channel coder. At the encoder, JPEG2000 is used to perform source coding with certain error resilience (ER) modes, and LDPC codes are used to perform channel coding. At the decoder, after one iteration of LDPC decoding, the output codestream is then decoded by JPEG2000. With the error resilience mode switches on, the source decoder detects the position of the first error

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22

Ouled, Zaid Azza. "Amélioration des performances des systèmes de compression JPEG et JPEG2000." Poitiers, 2002. http://www.theses.fr/2002POIT2294.

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23

Nam, Ju-Hun, Byeong-Doo Choi, Sung-Jea Ko, et al. "IMPLEMENTATION OF REAL-TIME AIRBORNE VIDEO TELEMETRY SYSTEM." International Foundation for Telemetering, 2005. http://hdl.handle.net/10150/605038.

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ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>In this paper, we present an efficient real-time implementation technique for Motion-JPEG2000 video compression and its reconstruction used for a real-time Airborne Video Telemetry System. we utilize Motion JPEG2000 and 256-channel PCM Encoder was used for source coding in the developed system. Especially, in multiplexing and demultiplexing PCM encoded data, we use the continuous bit-stream fo

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24

Nguyen, Cung. "Fault tolerance analysis and design for JPEG-JPEG2000 image compression systems /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.

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Thesis (Ph. D.)--University of California, Davis, 2004.<br>Degree granted in Electrical and Computer Engineering. Library does not have original title page. Also available via the World Wide Web. (Restricted to UC campuses)

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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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Chen, Jeng-wei, and 陳政威. "JPEG2000 Adaptive Quantizer Design." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/44e5d4.

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碩士<br>朝陽科技大學<br>資訊工程系碩士班<br>94<br>In this paper, we propose an image compression system integrating Discrete Wavelet Transform (DWT) and adaptive quantizer design. The design considers the selection of quantization tables, the appropriate length for quantization intervals, and the DWT sub-bands quantization applied to. The proposed system can be efficiently employed in a variety of applications like digital cameras and computer vision. DWT has been applied in image compression for years since it provides considerable compression rate and supports multi-resolution representation. However, when

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Lin, Chien-sheng, and 林建勝. "A Perceptually Optimized JPEG2000 Encoder." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/56289061073509369148.

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碩士<br>大同大學<br>電機工程學系(所)<br>93<br>Driven by a growing demand for transmission of visual data over media with limited capacity, increasing efforts have been made to strengthen compression techniques and maintain good visual quality of the compressed image by human visual model. JPEG2000 is the new ISO/ITU standard for still image compression. The multi-resolution wavelet decomposition and the two-tier coding structure of JPEG2000 make it suitable for incorporating the human visual model into the coding algorithm, but the JPEG2000 coder is intrinsically a rate-based distortion minimization algo

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Wang, Tzu-Ya, and 王姿雅. "Prototype Verification of JPEG2000 Encoder." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/30897921800195638512.

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碩士<br>國立中正大學<br>電機工程所<br>97<br>In this thesis, we direct against Tier-2 part in the code procedure of JPEG2000 image process system, realize hardware structure, utilize access of person who store, is it take complexity of code to reduce to come. And set up a simulation AMBA behavior environment and carry on the function and prove, verify prototype of JPEG2000 encoder.

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Lin, Chien-Sheng, and 林建勝. "A Perceptually Optimized JPEG2000 Encoder." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/55151734289221938158.

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碩士<br>大同大學<br>電機工程研究所<br>92<br>Driven by a growing demand for transmission of visual data over media with limited capacity, increasing efforts have been made to strengthen compression techniques and maintain good visual quality of the compressed image by human visual model. JPEG2000 is the new ISO/ITU standard for still image compression. The multi-resolution wavelet decomposition and the two-tier coding structure of JPEG2000 make it suitable for incorporating the human visual model into the coding algorithm, but the JPEG2000 coder is intrinsically a rate-based distortion minimization algori

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Chen, Shi-Jin, and 陳錫錦. "Implementation and Verification of JPEG2000." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/38550405805809161454.

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碩士<br>國立清華大學<br>資訊工程學系<br>91<br>Design verification at system level has been one of the most important and challenging jobs for system design. It is because that traditionally, hardware and software are often developed separately. The sequential process of hardware and software development increases time-to-market. In addition, a system-on-chip comprises of many components such as processors, timers, busses, memories and embedded software. Designs are getting bigger in size and larger in complexity. Furthermore, hardware often implement at the RTL level, the simulation of which take much time.

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FU, SHENG-ZONG, and 傅聖中. "Hardware Implementation of JPEG2000 Encoder." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/17910103004386463997.

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碩士<br>國立聯合大學<br>電子工程學系碩士班<br>105<br>In 2000, the Joint Photographic Experts Group committee published an image compression standard JPEG2000 that is DWT-based and supports lossy and lossless compressions. It supports flexible image transmissions such as the progressive transmission and the scaling transmission according to the property of JPEG2000 has the packetized image compression data. The core of JPEG2000 consists of three schemes: DWT, Embedded Block Coding with Optimal Truncation (EBCOT) and MQ-coder. Previous works on the JPEG2000 architecture most of them were focus on the architectur

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Chiu, Kuo-En, and 邱國恩. "VLSI Architecture of JPEG2000 Codec." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/73652927005268307145.

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碩士<br>義守大學<br>電機工程學系碩士班<br>94<br>The hierarchical modular design and hardware implementation of JPEG2000 codec are presented in this thesis. The codec includes three major modules: DWT, Quantizer, and EBCOT Tier-1. On the premise of reducing the hardware resources requirement, we elaborate a high-performance architecture and discrete-event model for each functional module. Through the hardware synthesis methodology, the RTL hardware of each functional module is generated rapidly. The synthesized circuit possesses distributed architecture, good extensibility and ease to system integration. The

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Tsai, Ming-Wei, and 蔡明衛. "Watermarking of JPEG2000 Compressed Images." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/09097209423047377493.

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Соколова, В. К. "Характеристика стандарту jpeg 2000 для кодування растрових зображень". Thesis, 2020. http://openarchive.nure.ua/handle/document/13953.

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Стандарт JPEG 2000 дає можливості вибору значень численних параметрів кодування растрових зображень, які суттєво впливають на розмір кодового потоку та якість відновленого зображення. При декодуванні значення параметрів зчитуються з заголовків кодового потоку, і декодер повинен забезпечити коректне відновлення вихідного зображення.

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林建佑. "High Performance EBCOT Design of JPEG2000." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/55262093547634266659.

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碩士<br>國立清華大學<br>資訊工程學系<br>90<br>The current state of JPEG 2000 Part 1 is an international standard. Although it provides unprecedented features not available in other standards, lots of the technical bottlenecks are still unsolved in its image processing algorithms, especially in the novel embedded block encoding operations. In this thesis, bit-level we propose a new architecture for ECBOT. The architecture can perform parallel processing coding to increase the throughput of context formation. Column skipping can skip columns which have four no-operation bits. In addition, in the me

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Lin, Hsin-Yi, and 林昕儀. "Design and Implementation of JPEG2000 Encoder." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/23353494450614424282.

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碩士<br>國立交通大學<br>電子工程系所<br>92<br>The ability to have scalability in resolution as well as image quality is the main attractiveness of JPEG2000. DWT (Discrete Wavelet Transform) and EBCOT (Embedded Block Coding with Optimal Truncation) which are two major technologies enable it, however, are also the parts that demand huge storage and computations. To reduce memory requirement, we combine five different computing orders of DWT with level-by-level or mixed-level and find that level-by-level optimal-z scan can reduce the temporal buffer in DWT as well as the buffer between DWT and EBCOT. We also a

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Yen, Wen-Chi, and 顏文祺. "A Hardware/Software-Concurrent JPEG2000 Encoder." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/24263295495852495855.

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碩士<br>國立清華大學<br>資訊工程學系<br>92<br>We implement a JPEG2000 encoder based on an internally developed hardware/software codesign methodology. We emphasize on the concurrent execution of hardware accelerator IPs and software running on the CPU. In a programmable SOC platform, hardware acceleration of DWT and EBCOT Tier-1 sequentially gives us 70% reduction in total execution time. The proposed concurrent scheme achieves additional 14% saving. We describe our experience in bringing up such a system.

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Huang, Chi-Wen, and 黃琪文. "AHB-based JPEG2000 Coprocessor System Design." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/s694zp.

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碩士<br>國立交通大學<br>電機與控制工程系所<br>92<br>Because JPEG2000 is the state-of-the-art image compression technology, our lab has made efforts in developing a high-performance JPEG2000 chip and developed QDWT (Quad Discrete Wavelet Transform) which is more efficient than the traditional DWT (Discrete Wavelet Transform) . QDWT only needs the quarter of compute time than the traditional DWT does to generate the coefficients to EBCOT (Embedded Block Coding with Optimized Truncation). We also develop a high-performance AC (Arithmetic Entropy Coder). The pipeline architecture is used in the AC and we only use

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Chen, Shih-Hau, and 陳世豪. "Background Information Hiding Method for JPEG2000." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/19648661070868168896.

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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>94<br>The JPEG2000 is a new compressive standard for still images. It is gradually replacing JPEG. It is possessed of better compressive rates and image quality than JPEG. Besides, there are special functions in JPEG2000, like ROI and progressive transmission. Hence, it becomes important to do research on information hiding with minimum destruction of quality of the recovered images in JPEG2000. This paper proposes an approach that hides information in the part of background image, because human eyes are not sensitive to background images. Even more this method ca

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40

Wu, HounChien, and 吳鴻謙. "Using JPEG2000 in Aerial Phot Compression." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/42365468266315852130.

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碩士<br>國立交通大學<br>土木工程系<br>91<br>Using JPEG2000 in Aerial Photo Compression Student：Houn-Chien Wu Advisor：Tian- Yuan Shih Department of Civil Engineering National Chiao Tung University Abstract In this study, the performance of JPEG2000 is evaluated for aerial photo image compression. First, evaluation is performed on the full scene of the photos based on visual analysis and some indices are computed for different ratios with both JPEG2000 and JPEG, including SNR, PSNR, RMSE, Entropy, etc. Second, some objects selected in the scene are stu

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Jia, Hwe-fen, and 賈惠芬. "A JPEG2000 Image Decoder Front-end." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/71009445521734164697.

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碩士<br>國立清華大學<br>資訊工程學系<br>89<br>We proposed an architecture for the front-end part of a JPEG2000 image decoder including marker handler, arithmetic decoder and coefficient bit modeling module. The whole JPEG2000 decoder system is made up of the proposed architecture, an IDWT block and an RGB-to-BMP format converter. We have completed the RTL design and verified its functional correctness with gate-level simulation. The circuit has been synthesized targeting toward a 0.35 μm CMOS cell library. Its area is 24,700 gates and speed is 40 MHz.

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Huang, Yi-Wei, and 黃奕桅. "Image Coding System Based on JPEG2000." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/07198912776558498245.

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碩士<br>國立臺灣大學<br>資訊工程學研究所<br>90<br>JPEG2000 is the next generation still image compression standard. Besides its higher distortion/rate performance and superior error resilience than JPEG, it provides many features, such as progressive decoding by resolution, progressive decoding by quality, random access, region of interest coding, compressed domain processing, and rate-distortion optimization. In this paper, we survey several theories used in JPEG2000 and use these theories to realize our image coding system, which provides progressive decoding by resolution, random access, and rate-distortio

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Sung, Chieh-Hsiu, and 宋杰修. "A study on JPEG2000 with Applications." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/94183391428845263485.

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碩士<br>國立清華大學<br>資訊工程學系<br>95<br>In order to satisfy the requirements of multimedia technologies, image compression requires higher performance, and how to enhance the compression ratio becomes more and more important. Therefore, a new standard of still image compression, JPEG2000, is currently being developed. JPEG2000 encoding system adopts Discrete Wavelet Transform (DWT) and Embedded Block Coding with Optimal Truncation (EBCOT). Compared with JPEG, JPEG2000 provides several characteristics such as lossy and lossless compression, ROI (Region of Interest), random access, progressive transmiss

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Chen, Guan-Fu, and 陳冠甫. "An Adaptive Quantization Scheme for JPEG2000." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/54759016045566717314.

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碩士<br>朝陽科技大學<br>資訊工程系碩士班<br>95<br>JPEG2000 is a common image compression standard which attracts much attention in recent years. Based on DWT （Discrete Wavelet Transform）, we propose an adaptive quantization approach which quantizes the coefficients according to their characteristics. Compared with JPEG2000 quantization which uses the same quantization interval on all images, the proposed adaptive quantization leads to better image quality according to the experiment results.

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Wang, Li-Jhong, and 王立中. "A Fast Browsing System for JPEG2000." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/24169714255856434489.

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碩士<br>崑山科技大學<br>數位生活科技研究所<br>98<br>When users have to browse images in a large image database and may dynamically change ROIs, the performance view become more important than quality view. Many techniques have been presented for both static and dynamic ROI (Region of Interest) coding for JPEG2000 standard. However, none of them discussed the performance view of the decoding process for browsing image database. In this paper, based on the multiple progression orders and a mixed static and dynamic ROI coding style, we propose a method to shorten the hard-disc access time via an appropriate arran

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46

Po-Wei-Liu and 劉柏緯. "The Implementation of Image Compression JPEG2000." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/93627896519056774677.

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碩士<br>大葉大學<br>電機工程學系<br>102<br>Image compression is an important foundation for proceeding of image transmission. Therefore, image compression techniques play an important role in the transmission of images. Images are compressed with two different ways, which are lossless compressions and lossy compressions. In the lossless compression technique, decompressed images can be completely recovered; however the compression ratio is within limits. With lossy compression technique, higher compression ratios than lossless are obtained, but quality of recovered images are less than that of lossless. J

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47

Shi, Jones, and 徐上崢. "Fragile watermark technique embedded in JPEG2000 compression." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/88580529929059153993.

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48

Jian, Ruei-Cheng, and 簡瑞成. "Applying Human Visual Model to JPEG2000 Codec." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/41042284591357188056.

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碩士<br>國立雲林科技大學<br>電機工程系碩士班<br>97<br>Recently, the wavelet based JPEG2000 algorithm has attracted significant attentions from researchers in image coding. JPEG2000 maximizes the PSNR value (or minimize MSE value) for each transmitted bit. However, it is well known that PSNR is not a good indicator for the perceptual image fidelity. Human visual perception is more sensitive to distortions in lower frequency components than higher frequency components. In this paper, we enhance JPEG2000 by introducing a process between wavelet transform and JPEG2000 called JND_SQ. JND_SQ allowed JPEG2000 to maxi

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49

hung, sai ming, and 蔡明宏. "Remote Image Surveillance System based on JPEG2000." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/31719429854346578810.

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碩士<br>中華大學<br>機械與航太工程研究所<br>94<br>This research is to establish a real-time image tracking and image transmission system by using PC as a development platform and using image process methods and internet transmission technique. The object’s moving edge can be obtained through image process of two consecutive images; so the center of the moving object is found. Then the camera base can be controlled to follow the object. In order to compress the images for internet transmission, the JPEQ2000 compression standard is adopted. The experiments of this research are also includes two parts. The first

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50

Huang, Yen-Lang, and 黃延郎. "The Study of Error-Resilience in JPEG2000." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/94gghe.

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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>90<br>In traditional JPEG2000, we insert resynchronization markers into the head and the tail of a precinct to achieve the error-resilience. As such, it can protect other precincts when a precinct is affected by errors. However, a precinct is a necessary unit to form a higher-level resolution (One higher-level resolution is 4 times as the primitive resolution) or a better-quality image. (User can classify different-layer qualities) Therefore, we propose a UBIIM (Uneven Block-sized Information Included Marker), in which we put an IIM follows each code-block. Thus

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