Download or read book An Adaptive Transform Coding Algorithm written by Andrew G. Tescher and published by . This book was released on 1976 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: An adaptive transform coding algorithm based on a recursive procedure in the transform domain has been developed. Both the quantization parameters and bit assignment are dynamically determined and thus are closely matched to the actual image structure. Overhead requirements are minimal. (Author).

Download or read book An Implementation of MHT Algorithm for Adaptive Transform Coding of Speech written by Peter Battenschlag and published by . This book was released on 1990 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recursive Block Coding for Image Data Compression written by Paul M. Farrelle and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recursive Block Coding, a new image data compression technique that has its roots in noncausal models for 1d and 2d signals, is the subject of this book. The underlying theory provides a multitude of compression algorithms that encompass two course coding, quad tree coding, hybrid coding and so on. Since the noncausal models provide a fundamentally different image representation, they lead to new approaches to many existing algorithms, including useful approaches for asymmetric, progressive, and adaptive coding techniques. On the theoretical front, the basic result shows that a random field (an ensemble of images) can be coded block by block such that the interblock redundancy can be completely removed while the individual blocks are transform coded. On the practical side, the artifact of tiling, a block boundary effect, present in conventional block by block transform coding techniques has been greatly suppressed. This book contains not only a theoretical discussion of the algorithms but also exhaustive simulation and suggested methodologies for ensemble design techniques. Each of the resulting algorithms has been applied to twelve images over a wide range of image data rates and the results are reported using subjective descriptions, photographs, mathematical MSE values, and h-plots, a recently proposed graphical representation showing a high level of agreement with image quality as judged subjectively.

Download or read book Transform Coding of Images written by R. J. Clarke and published by . This book was released on 1985 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Discrete Cosine Transform written by K. Ramamohan Rao and published by Academic Press. This book was released on 2014-06-28 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive treatment of the theoretical aspects of the discrete cosine transform (DCT), which is being recommended by various standards organizations, such as the CCITT, ISO etc., as the primary compression tool in digital image coding. The main purpose of the book is to provide a complete source for the user of this signal processing tool, where both the basics and the applications are detailed. An extensive bibliography covers both the theory and applications of the DCT. The novice will find the book useful in its self-contained treatment of the theory of the DCT, the detailed description of various algorithms supported by computer programs and the range of possible applications, including codecs used for teleconferencing, videophone, progressive image transmission, and broadcast TV. The more advanced user will appreciate the extensive references. Tables describing ASIC VLSI chips for implementing DCT, and motion estimation and details on image compression boards are also provided.

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.

Download or read book Adaptive Transform Coding for Digital Image Communication written by B. M. S. Moussa and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Channel Rate Equalization Techniques for Adaptive Transform Coders written by Andrew G. Tescher and published by . This book was released on 1976 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The channel rate equalization problem inherent in a variable rate coding problem is analysed in this paper. Specific solutions are developed for adaptive transform coding algorithms. The actual algorithms depend on either pretransform or post-transform buffering. Simulations indicate small performance variations between the techniques. (Author).

Download or read book A Visual Model Weighted Adaptive Discrete Cosine Transform Coding of Images written by Fu-Huei Lin and published by . This book was released on 1991 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1992 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Transform Coding Using Energy Classification written by Chong Yong Lai and published by . This book was released on 1991 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Transform Coding of Images Using a Mixture of Principal Components microform written by Robert Douglas Dony and published by National Library of Canada = Bibliothèque nationale du Canada. This book was released on 1995 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Role of Phase in Adaptive Image Coding written by Andrew G. Tescher and published by . This book was released on 1973 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report includes a detailed analysis of image modeling aspects of the transform coding problem. Two alternate prediction algorithms are analyzed for the transform sample variance estimation: the first technique uses a two-dimensional polynomial to model the image power spectral density; the second technique is a simple recursive approach based on previously quantized values. The generalized phase concept is developed and plays a vital role in the coding algorithms. Both the Fourier and Walsh transforms are used, the former being demonstrated to have superior performance. A non-negative image constraint is explored via the Lukosz bound. The experimental phase of the study includes two dimensional coding of monochrome, and three dimensional coding of color, as well as interframe images with coding at 0.38, 0.55, and 0.25 bits/pixel, respectively. It is demonstrated that adaptive transform domain modeling is important, and that large-size transforms, in conjunction with the proper image model, can significantly outperform block-encoding techniques. (Author).

Download or read book Investigations Into the Performance of Adaptive Transform Coding in Combination with Error Correction Coding written by Daniel J. Mashao and published by . This book was released on 1990* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Adaptive Image Transform Coding Using Activity Factors written by Songshi Kang and published by . This book was released on 1981 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Audio Signal Processing and Coding written by Andreas Spanias and published by John Wiley & Sons. This book was released on 2006-09-11 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: An in-depth treatment of algorithms and standards for perceptual coding of high-fidelity audio, this self-contained reference surveys and addresses all aspects of the field. Coverage includes signal processing and perceptual (psychoacoustic) fundamentals, details on relevant research and signal models, details on standardization and applications, and details on performance measures and perceptual measurement systems. It includes a comprehensive bibliography with over 600 references, computer exercises, and MATLAB-based projects for use in EE multimedia, computer science, and DSP courses. An ftp site containing supplementary material such as wave files, MATLAB programs and workspaces for the students to solve some of the numerical problems and computer exercises in the book can be found at ftp://ftp.wiley.com/public/sci_tech_med/audio_signal

Download or read book Transputers and Parallel Applications written by John Hulskamp and published by IOS Press. This book was released on 1992-11 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the proceedings of a Transputer and OCCAM User Group Conference, held in Melbourne, in November 1992, discussing recent developments in the field of transputers and parallel applications.