Digital Video Quality

Digital Video Quality PDF

Author: Stefan Winkler

Publisher: John Wiley & Sons

Published: 2013-05-28

Total Pages: 200

ISBN-13: 1118691261

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Visual quality assessment is an interdisciplinary topic that links image/video processing, psychology and physiology. Many engineers are familiar with the image/video processing; transmission networks side of things but not with the perceptual aspects pertaining to quality. Digital Video Quality first introduces the concepts of human vision and visual quality. Based on these, specific video quality metrics are developed and their design is presented. These metrics are then evaluated and used in a number of applications, including image/video compression, transmission and watermarking. Introduces the concepts of human vision and vision quality. Presents the design and development of specific video quality metrics. Evaluates video quality metrics in the context of image/video compression, transmission and watermarking. Presents tools developed for the analysis of video quality

Digital Video Concepts, Methods, and Metrics

Digital Video Concepts, Methods, and Metrics PDF

Author: Shahriar Akramullah

Publisher: Apress

Published: 2014-11-05

Total Pages: 359

ISBN-13: 1430267135

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Digital Video Concepts, Methods, and Metrics: Quality, Compression, Performance, and Power Trade-off Analysis is a concise reference for professionals in a wide range of applications and vocations. It focuses on giving the reader mastery over the concepts, methods and metrics of digital video coding, so that readers have sufficient understanding to choose and tune coding parameters for optimum results that would suit their particular needs for quality, compression, speed and power. The practical aspects are many: Uploading video to the Internet is only the beginning of a trend where a consumer controls video quality and speed by trading off various other factors. Open source and proprietary applications such as video e-mail, private party content generation, editing and archiving, and cloud asset management would give further control to the end-user. Digital video is frequently compressed and coded for easier storage and transmission. This process involves visual quality loss due to typical data compression techniques and requires use of high performance computing systems. A careful balance between the amount of compression, the visual quality loss and the coding speed is necessary to keep the total system cost down, while delivering a good user experience for various video applications. At the same time, power consumption optimizations are also essential to get the job done on inexpensive consumer platforms. Trade-offs can be made among these factors, and relevant considerations are particularly important in resource-constrained low power devices. To better understand the trade-offs this book discusses a comprehensive set of engineering principles, strategies, methods and metrics. It also exposes readers to approaches on how to differentiate and rank video coding solutions.

Digital Video Image Quality and Perceptual Coding

Digital Video Image Quality and Perceptual Coding PDF

Author: H.R. Wu

Publisher: CRC Press

Published: 2017-12-19

Total Pages: 640

ISBN-13: 1420027824

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The hand is quicker than the eye. In many cases, so is digital video. Maintaining image quality in bandwidth- and memory-restricted environments is quickly becoming a reality as thriving research delves ever deeper into perceptual coding techniques, which discard superfluous data that humans cannot process or detect. Surveying the topic from a Human Visual System (HVS)-based approach, Digital Video Image Quality and Perceptual Coding outlines the principles, metrics, and standards associated with perceptual coding, as well as the latest techniques and applications. This book is divided broadly into three parts. First, it introduces the fundamental theory, concepts, principles, and techniques underlying the field, such as the basics of compression, HVS modeling, and coding artifacts associated with current well-known techniques. The next section focuses on picture quality assessment criteria; subjective and objective methods and metrics, including vision model based digital video impairment metrics; testing procedures; and international standards regarding image quality. Finally, practical applications come into focus, including digital image and video coder designs based on the HVS as well as post-filtering, restoration, error correction, and concealment techniques. The permeation of digital images and video throughout the world cannot be understated. Nor can the importance of preserving quality while using minimal storage space, and Digital Video Image Quality and Perceptual Coding provides the tools necessary to accomplish this goal. Instructors and lecturers wishing to make use of this work as a textbook can download a presentation of 786 slides in PDF format organized to augment the text. accompany our book (H.R. Wu and K.R. Rao, Digital Video Image Quality and Perceptual Coding, CRC Press (ISBN: 0-8247-2777-0), Nov. 2005) for lecturers or instructor to use for their classes if they use the book.

How Video Works

How Video Works PDF

Author: Diana Weynand

Publisher: CRC Press

Published: 2015-08-14

Total Pages: 376

ISBN-13: 1317661818

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How Video Works raises the curtain on how video is created, scanned, transmitted, stored, compressed, encoded, delivered and streamed to its multitude of destinations. In today’s digital world, every content creator—individual as well as network or corporation—must understand the process of how video works in order to deliver not only the best quality video, but a digital video file with the most appropriate specifications for each particular use. This complete guide covers key stages of video development, from image capture to the final stages of delivery and archiving, as well as workflows and new technologies, including Ultra High Definition, metadata, signal monitoring, streaming and managing video files – all presented in an easy to understand way. Whether you are a professional or new video technician discovering the ins and outs of digital distribution, this book has the information you need to succeed. The updated third edition contains: • New sections on image capture as well as streaming and video workflows • A hands-on approach to using digital scopes and monitoring the video signal • Thorough explanations of managing video files, including codecs and wrappers • In-depth coverage of compression, encoding, and metadata • A complete explanation of video and audio standards, including Ultra HD • An overview of video recording and storage formats • A complete glossary of terms for video, audio and broadcast

Digital Video: An Introduction to MPEG-2

Digital Video: An Introduction to MPEG-2 PDF

Author: Barry G. Haskell

Publisher: Springer Science & Business Media

Published: 2007-05-08

Total Pages: 451

ISBN-13: 0306469820

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Digital Video offers comprehensive coverage of the MPEG-2 audio/visual digital compression standard. The treatment includes the specifics needed to implement an MPEG-2 Decoder, including the syntax and semantics of the coded bitstreams. Since the MPEG-2 Encoders are not specified by the standard, and are actually closely held secrets of many vendors, the book only outlines the fundamentals of encoder design and algorithm optimization.

Digital Television

Digital Television PDF

Author: Walter Fischer

Publisher: Springer Science & Business Media

Published: 2004-03-05

Total Pages: 424

ISBN-13: 9783540011552

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Digital Television deals with all present-day TV transmission methods, i.e. MPEG, DVB, ATSC and ISDB-T. The DVD Video is also discussed to some extent. The discussion is focussed on dealing with these subjects in as practical a way as possible. Although mathematical formulations are used, they are in most cases only utilized to supplement the text. The book also contains chapters dealing with basic concepts such as digital modulation or transformations into the frequency domain. A major emphasis is placed on the measuring techniques used on these various digital TV signals. Practical examples and hints concerning measurement are provided. The book starts with the analog TV baseband signal and then continues with the MPEG-2 data stream, digital video, digital audio and the compression methods. After an excursion into the digital modulation methods, all the mentioned transmission methods are discussed in detail. Interspersed between these are found the chapters on the relevant measuring technique.

Advances of Computational Intelligence in Industrial Systems

Advances of Computational Intelligence in Industrial Systems PDF

Author: Ying Liu

Publisher: Springer Science & Business Media

Published: 2008-05-23

Total Pages: 387

ISBN-13: 3540782966

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Computational Intelligence (CI) has emerged as a rapidly growing field over the past decade. This volume reports the exploration of CI frontiers with an emphasis on a broad spectrum of real-world applications. Such a collection of chapters has presented the state-of-the-art of CI applications in industry and will be an essential resource for professionals and researchers who wish to learn and spot the opportunities in applying CI techniques to their particular problems.

Digital Video Communications

Digital Video Communications PDF

Author: Martyn J. Riley

Publisher: Artech House Publishers

Published: 1997

Total Pages: 248

ISBN-13:

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"Digital Video Communications" discusses the new and emerging applications of digital video communications and introduces the key systems required to support the technology. The book helps readers meet and improve (QoS) requirements, correct transmission errors, and apply rate control to coded video transmission.

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