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Author : Henry Chung
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (299 download)
Download or read book A Comparison of Subband Coding for Data Compression by Using Different Transforms written by Henry Chung and published by . This book was released on 1994 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kamisetty Ramam Rao
Publisher : CRC Press
ISBN 13 : 1420037382
Total Pages : 408 pages
Book Rating : 4.4/5 (2 download)
Download or read book The Transform and Data Compression Handbook written by Kamisetty Ramam Rao and published by CRC Press. This book was released on 2018-10-03 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data compression is one of the main contributing factors in the explosive growth in information technology. Without it, a number of consumer and commercial products, such as DVD, videophone, digital camera, MP3, video-streaming and wireless PCS, would have been virtually impossible. Transforming the data to a frequency or other domain enables even more efficient compression. By illustrating this intimate link, The Transform and Data Compression Handbook serves as a much-needed handbook for a wide range of researchers and engineers. The authors describe various discrete transforms and their applications in different disciplines. They cover techniques, such as adaptive quantization and entropy coding, that result in significant reduction in bit rates when applied to the transform coefficients. With clear and concise presentations of the ideas and concepts, as well as detailed descriptions of the algorithms, the authors provide important insight into the applications and their limitations. Data compression is an essential step towards the efficient storage and transmission of information. The Transform and Data Compression Handbook provides a wealth of information regarding different discrete transforms and demonstrates their power and practicality in data compression.
Author : Wael Mouhammad Jamil Bazzi
Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.:/5 (787 download)
Download or read book Subband Transform Coding for Image Compression written by Wael Mouhammad Jamil Bazzi and published by . This book was released on 1999 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Image compression has been an active research area for more than 25 years. The purpose of digital image compression is to reduce the amount of data needed to represent a digital image.--Subhand coding is one popular technique, which has been successful!) applied for the purpose of digital image compression. This technique has recently received considerable attention. In subband coding, the input image is divided into a number of separate frequency components, which are encoded separate!).--The following work initialed after observing that most subband coders have been based on using spatial coding techniques in the subbands. Coding the transforms of the subbands is proposed here.--Results, tor typical standard images, show that coding the transforms of the subbands in a subband coder results in a lower reconstruction error as compared to using spatial coding techniques like predictive coding.
Author : T.A. Ramstad
Publisher : Elsevier
ISBN 13 : 0080550851
Total Pages : 397 pages
Book Rating : 4.0/5 (85 download)
Download or read book Subband Compression of Images: Principles and Examples written by T.A. Ramstad and published by Elsevier. This book was released on 1995-07-18 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sixth in the book series, Advances in Image Communication, which documents the rapid advancements of recent years in image communication technologies, this volume provides a comprehensive exploration of subband coding. Originally, subband coding and transform coding were developed separately. The former, however, benefitted considerably from the earlier evolution of transform coding theory and practice. Retaining their own terminology and views, the two methods are closely related and this book indeed aims to unify the approaches. Specifically, the volume contributes effectively to the understanding of frequency domain coding techniques. Many images from coding experiments are presented, enabling the reader to consider the properties of different coders. Chapter 1 introduces the problem of image compression in general terms. Sampling of images and other fundamental concepts, such as entropy and the rate distortion function, are briefly reviewed. The idea of viewing coding techniques as series expansions is also introduced. The second chapter presents signal decomposition and the conditions for perfect reconstruction from minimum representations. Chapter 3 deals with filter bank structures, primarily those displaying the perfect reconstruction property. Quantization techniques and the efficient exploitation of the bit resources are discussed from a theoretical perspective in Chapter 4 and this issue is further examined in Chapter 6, from a more practical point of view. Chapter 5 provides a development of gain formulas, i.e. quantitative measures of the performance of filter banks in a subband coding context, and these are then employed in a search for optimal filter banks. A number of examples of coded images using different subband coders are presented in Chapter 7, these indicating that subband coders give rise to some characteristic types of image degradations. Accordingly, Chapter 8 presents several techniques for minimizing these artifacts. The theory and practice of subband coding of video, at several target bit rates, is discussed in the last chapter.
Author : National Aeronautics and Space Adm Nasa
Publisher : Independently Published
ISBN 13 : 9781728664552
Total Pages : 32 pages
Book Rating : 4.6/5 (645 download)
Download or read book Sub-Band/Transform Compression of Video Sequences written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-11 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The progress on compression of video sequences is discussed. The overall goal of the research was the development of data compression algorithms for high-definition television (HDTV) sequences, but most of our research is general enough to be applicable to much more general problems. We have concentrated on coding algorithms based on both sub-band and transform approaches. Two very fundamental issues arise in designing a sub-band coder. First, the form of the signal decomposition must be chosen to yield band-pass images with characteristics favorable to efficient coding. A second basic consideration, whether coding is to be done in two or three dimensions, is the form of the coders to be applied to each sub-band. Computational simplicity is of essence. We review the first portion of the year, during which we improved and extended some of the previous grant period's results. The pyramid nonrectangular sub-band coder limited to intra-frame application is discussed. Perhaps the most critical component of the sub-band structure is the design of bandsplitting filters. We apply very simple recursive filters, which operate at alternating levels on rectangularly sampled, and quincunx sampled images. We will also cover the techniques we have studied for the coding of the resulting bandpass signals. We discuss adaptive three-dimensional coding which takes advantage of the detection algorithm developed last year. To this point, all the work on this project has been done without the benefit of motion compensation (MC). Motion compensation is included in many proposed codecs, but adds significant computational burden and hardware expense. We have sought to find a lower-cost alternative featuring a simple adaptation to motion in the form of the codec. In sequences of high spatial detail and zooming or panning, it appears that MC will likely be necessary for the proposed quality and bit rates. Sauer, Ken and Bauer, Peter Unspecified Center NAG3-1186
Author : Srija Unnikrishnan
Publisher : Springer Science & Business Media
ISBN 13 : 3642184391
Total Pages : 554 pages
Book Rating : 4.6/5 (421 download)
Download or read book Advances in Computing, Communication and Control written by Srija Unnikrishnan and published by Springer Science & Business Media. This book was released on 2011-01-14 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the International Conference on Advances in Computing Communications and Control, ICAC3 2011, held in Mumbai, India, in January 2011. The 84 revised full papers presented were carefully reviewed and selected from 309 submissions. The papers address issues such as AI, artificial neural networks, computer graphics, data warehousing and mining, distributed computing, geo information and statistical computing, learning algorithms, system security, virtual reality, cloud computing, service oriented architecture, semantic web, coding techniques, modeling and simulation of communication systems, network architecture, network protocols, optical fiber/microwave communication, satellite communication, speech/image processing, wired and wireless communication, cooperative control, and nonlinear control, process control and instrumentation, industrial automation, controls in aerospace, robotics, and power systems.
Author : David Salomon
Publisher : Springer
ISBN 13 : 9781848007000
Total Pages : 314 pages
Book Rating : 4.0/5 (7 download)
Download or read book A Concise Introduction to Data Compression written by David Salomon and published by Springer. This book was released on 2009-10-12 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: This clearly written book offers readers a succinct foundation to the most important topics in the field of data compression. Part I presents the basic approaches to data compression and describes a few popular techniques and methods that are commonly used to compress data. The reader will discover essential concepts. Part II concentrates on advanced techniques, such as arithmetic coding, orthogonal transforms, subband transforms and Burrows-Wheeler transform. This book is the perfect reference for advanced undergraduates in computer science and requires a minimum of mathematics. An author-maintained website provides errata and auxiliary material.
Author : Don Speck
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (321 download)
Download or read book Low-complexity Subband Coding for Image Compression written by Don Speck and published by . This book was released on 1994 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Vernon A. Allen
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.E/5 ( download)
Download or read book ECG Data Compression Through Sub-band Coding of the Discrete Cosine Transform written by Vernon A. Allen and published by . This book was released on 1993 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald Adjeroh
Publisher : Springer Science & Business Media
ISBN 13 : 038778909X
Total Pages : 353 pages
Book Rating : 4.3/5 (877 download)
Download or read book The Burrows-Wheeler Transform: written by Donald Adjeroh and published by Springer Science & Business Media. This book was released on 2008-06-17 with total page 353 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Burrows-Wheeler Transform is one of the best lossless compression me- ods available. It is an intriguing — even puzzling — approach to squeezing redundancy out of data, it has an interesting history, and it has applications well beyond its original purpose as a compression method. It is a relatively late addition to the compression canon, and hence our motivation to write this book, looking at the method in detail, bringing together the threads that led to its discovery and development, and speculating on what future ideas might grow out of it. The book is aimed at a wide audience, ranging from those interested in learning a little more than the short descriptions of the BWT given in st- dard texts, through to those whose research is building on what we know about compression and pattern matching. The ?rst few chapters are a careful description suitable for readers with an elementary computer science ba- ground (and these chapters have been used in undergraduate courses), but later chapters collect a wide range of detailed developments, some of which are built on advanced concepts from a range of computer science topics (for example, some of the advanced material has been used in a graduate c- puter science course in string algorithms). Some of the later explanations require some mathematical sophistication, but most should be accessible to those with a broad background in computer science.
Author : Catherine Yu Chen
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (221 download)
Download or read book Digital Image Compression Using Subband Coding, Discrete Cosine Transform Coding and Vector Quantization written by Catherine Yu Chen and published by . This book was released on 1993 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (317 download)
Download or read book Transform Coding for Space Applications written by and published by . This book was released on 1993 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Salomon
Publisher : Springer Science & Business Media
ISBN 13 : 1848829035
Total Pages : 1370 pages
Book Rating : 4.8/5 (488 download)
Download or read book Handbook of Data Compression written by David Salomon and published by Springer Science & Business Media. This book was released on 2010-01-18 with total page 1370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data compression is one of the most important fields and tools in modern computing. From archiving data, to CD-ROMs, and from coding theory to image analysis, many facets of modern computing rely upon data compression. This book provides a comprehensive reference for the many different types and methods of compression. Included are a detailed and helpful taxonomy, analysis of most common methods, and discussions on the use and comparative benefits of methods and description of "how to" use them. Detailed descriptions and explanations of the most well-known and frequently used compression methods are covered in a self-contained fashion, with an accessible style and technical level for specialists and non-specialists.
Author : Jelena Kovacevic
Publisher : Prentice Hall
ISBN 13 : 9780130970800
Total Pages : 488 pages
Book Rating : 4.9/5 (78 download)
Download or read book Wavelets and Subband Coding written by Jelena Kovacevic and published by Prentice Hall. This book was released on 1995 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: A central goal of signal processing is to describe real-time signals, be it for computation, compression, or understanding. This book presents a unified view of wavelets and subband coding with a signal processing perspective. Covers the discrete-time case, or filter banks; development of wavelets; continuous wavelet and local Fourier transforms; efficient algorithms for filter banks and wavelet computations; and signal compression. *provides broad coverage of theory and applications and a different perspective based on signal processing. *gives framework for applications in speech, audio, image and video compression as used in multimedia. *includes sufficient background material so that people without signal processing knowledge will find it useful.
Author : Ali N. Akansu
Publisher : Academic Press
ISBN 13 : 0120471418
Total Pages : 518 pages
Book Rating : 4.1/5 (24 download)
Download or read book Multiresolution Signal Decomposition written by Ali N. Akansu and published by Academic Press. This book was released on 2001 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: The uniqueness of this book is that it covers such important aspects of modern signal processing as block transforms from subband filter banks and wavelet transforms from a common unifying standpoint, thus demonstrating the commonality among these decomposition techniques. In addition, it covers such "hot" areas as signal compression and coding, including particular decomposition techniques and tables listing coefficients of subband and wavelet filters and other important properties. The field of this book (Electrical Engineering/Computer Science) is currently booming, which is, of course, evident from the sales of the previous edition. Since the first edition came out there has been much development, especially as far as the applications. Thus, the second edition addresses new developments in applications-related chapters, especially in chapter 4 "Filterbrook Families: Design and Performance," which is greatly expanded. Unified and coherent treatment of orthogonal transforms, subbands, and wavelets Coverage of emerging applications of orthogonal transforms in digital communications and multimedia Duality between analysis and synthesis filter banks for spectral decomposition and synthesis and analysis transmultiplexer structures Time-frequency focus on orthogonal decomposition techniques with applications to FDMA, TDMA, and CDMA
Author : R. J. Clarke
Publisher : Taylor & Francis US
ISBN 13 : 9780121757205
Total Pages : 482 pages
Book Rating : 4.7/5 (572 download)
Download or read book Digital Compression of Still Images and Video written by R. J. Clarke and published by Taylor & Francis US. This book was released on 1995-06-20 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covers all recognised coding algorithms
Author : Jules Aronson
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (121 download)
Download or read book Data Compression--a Comparison of Methods written by Jules Aronson and published by . This book was released on 1977 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
