Compression in Video and Audio


Book Description

Compression technology has been employed for a long time, but until recently the technology was too complex for everyday applications. However, compression has now reached the stage where it can economically be applied to video and audio systems on a wide scale. This book recognises the wide applications of compression by treating the subject from first principles without assuming any particular background for the reader. An introductory chapter is included which suggests some applications of compression and how it works in a simplified form. In addition a fundamentals chapter contains all of the background necessary to follow the rest of the book. Theory is balanced with a wide range of practical applications in transmission and recording and throughout the book the reader will find notes of caution and outlines of various pitfalls for the unwary. Various descriptions are also included of the kinds of impairments which can result from the misuse of compression. John Watkinson is an independent consultant in digital video, audio and data technology. he is a fellow of the AES and presents lectures, conference papers and training courses worldwide. he is the author of numerous other Focal press books, including the Art of Digital Audio, the Art of Digital Video (both now in their second edition) and The Art of Data Recording, An Introduction to Digital Audio, An Introduction to Digital Video, The Digital Videotape recorder and RDAT. he is also co-author, with Francis Rumsey of The Digital Interface Handbook. covers basic principles no unnecessary mathematics includes a wide range of practical applications




A Practical Guide to Video and Audio Compression


Book Description

First Published in 2005. Routledge is an imprint of Taylor & Francis, an informa company.




Digital Video and Audio Compression


Book Description

Here is a fully readable introduction to the basic technologies, infrastructures, costs, and applications for digital audio and video compression. Delivering a concise account of compression's terms, techniques, and tricks in an easy-to-read style, it covers the basic principles underlying digital signal processing and compression; how human beings see and hear; how audio and video are reproduced; all of the existing and emerging compression standards; video and audio compression techniques; and compression and reproduction requirements of different applications, including videoconferencing.




Image and Video Compression Standards


Book Description

New to the Second Edition: offers the latest developments in standards activities (JPEG-LS, MPEG-4, MPEG-7, and H.263) provides a comprehensive review of recent activities on multimedia enhanced processors, multimedia coprocessors, and dedicated processors, including examples from industry. Image and Video Compression Standards: Algorithms and Architectures, Second Edition presents an introduction to the algorithms and architectures that form the underpinnings of the image and video compressions standards, including JPEG (compression of still-images), H.261 and H.263 (video teleconferencing), and MPEG-1 and MPEG-2 (video storage and broadcasting). The next generation of audiovisual coding standards, such as MPEG-4 and MPEG-7, are also briefly described. In addition, the book covers the MPEG and Dolby AC-3 audio coding standards and emerging techniques for image and video compression, such as those based on wavelets and vector quantization. Image and Video Compression Standards: Algorithms and Architectures, Second Edition emphasizes the foundations of these standards; namely, techniques such as predictive coding, transform-based coding such as the discrete cosine transform (DCT), motion estimation, motion compensation, and entropy coding, as well as how they are applied in the standards. The implementation details of each standard are avoided; however, the book provides all the material necessary to understand the workings of each of the compression standards, including information that can be used by the reader to evaluate the efficiency of various software and hardware implementations conforming to these standards. Particular emphasis is placed on those algorithms and architectures that have been found to be useful in practical software or hardware implementations. Image and Video Compression Standards: Algorithms and Architectures, emSecond Edition uniquely covers all major standards (JPEG, MPEG-1, MPEG-2, MPEG-4, H.261, H.263) in a simple and tutorial manner, while fully addressing the architectural considerations involved when implementing these standards. As such, it serves as a valuable reference for the graduate student, researcher or engineer. The book is also used frequently as a text for courses on the subject, in both academic and professional settings.




Video Compression Handbook


Book Description

Video compression is not a new process; however, it is forever evolving. New standards, codecs, and ways of getting the job done are continually being created. Newcomers to video compression and seasoned veterans alike need to know how to harness the tools and use them for specific workflows for broadcast, the Web, Blu-rays, set-top boxes, digital cinema, and mobile devices. Here to guide you through the multitude of formats and confusing array of specifications, Andy Beach and Aaron Owen use a practical, straightforward approach to explaining video compression. After covering the fundamentals of audio and video compression, they explore the current applications for encoding, discuss the common workflows associated with each, and then look at the most common delivery platforms. The book includes examples from the authors’ projects as well as recipes that offer a way to define some of the best practices of video compression today. This invaluable resource gives you: proven techniques for delivering video online, or via disc or other devices. clear, straightforward explanations that cut through the jargon. step-by-step instructions for using a wide variety of encoding tools. workflow tips for performing either stand-alone or batch compressions. insight and advice from top compression professionals sprinkled throughout.




A Practical Guide to Video and Audio Compression


Book Description

Learn all about Codecs--how they work, as well as design and implementation with this comprehensive, easy-to-use guide to compression. After reading this book, you will be able to prepare and distribute professional audio and video on any platform including streamed to the web, broadcast on-air, stored in PVRs, Burned onto CD-ROMs or DVDs, delivered by broadband, or viewed in Kiosk applications, PDA devices, and mobile phones.




Compression for Multimedia


Book Description

Provides a thorough theoretical understanding of lossy compression techniques and systems, plus key features, applications, implementation issues, and design trade-offs. It also includes detailed comparisons of multimedia standards and their common and distinguishing features, examples based on real multimedia data, end-of-chapter review problems, and the basics of lossless coding.




Compression for Great Video and Audio


Book Description

Provides a single place where both novices and practiced hands can learn to get optimum video and audio compression done with minimum hassles.




Final Cut Pro X


Book Description

Final Cut Pro X has literally rocked the film and video-editing world by completely re-imagining the inherent concepts of nonlinear editing. For many editors and users of the previous versions of Final Cut Pro, it is like starting anew and learning a brand-new program. Those experienced with previous versions of Final Cut and other non-linear editors such as iMovie, Adobe Premiere Pro, and Avid Media Composer already understand the basic concepts of editing and are now looking for a quick guide to getting started. In this useful, cut-to-the-chase guide to the program, popular trainer and Final Cut guru Larry Jordan takes these experienced users through all the components of the software, from importing footage and organizing media to export and sharing. Along the way, they’ll learn the best ways to edit footage and add transitions, effects, and filters, do basic color correcting, work with audio, and utilize a variety of HD workflow techniques, to name a few. Within a weekend, users will learn the best ways to start editing in this groundbreaking program in this must-have guide.




Real-Time Video Compression


Book Description

Real-Time Video Compression: Techniques and Algorithms introduces the XYZ video compression technique, which operates in three dimensions, eliminating the overhead of motion estimation. First, video compression standards, MPEG and H.261/H.263, are described. They both use asymmetric compression algorithms, based on motion estimation. Their encoders are much more complex than decoders. The XYZ technique uses a symmetric algorithm, based on the Three-Dimensional Discrete Cosine Transform (3D-DCT). 3D-DCT was originally suggested for compression about twenty years ago; however, at that time the computational complexity of the algorithm was too high, it required large buffer memory, and was not as effective as motion estimation. We have resurrected the 3D-DCT-based video compression algorithm by developing several enhancements to the original algorithm. These enhancements make the algorithm feasible for real-time video compression in applications such as video-on-demand, interactive multimedia, and videoconferencing. The demonstrated results, presented in this book, suggest that the XYZ video compression technique is not only a fast algorithm, but also provides superior compression ratios and high quality of the video compared to existing standard techniques, such as MPEG and H.261/H.263. The elegance of the XYZ technique is in its simplicity, which leads to inexpensive VLSI implementation of any XYZ codec. Real-Time Video Compression: Techniques and Algorithms can be used as a text for graduate students and researchers working in the area of real-time video compression. In addition, the book serves as an essential reference for professionals in the field.