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Author : Hussein Rashid Al-Zoubi
Publisher :
ISBN 13 :
Total Pages : 370 pages
Book Rating : 4.:/5 (213 download)
Download or read book Computationally Efficient Motion Estimation Algorithms for Video Coding written by Hussein Rashid Al-Zoubi and published by . This book was released on 2007 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Indrajit Chakrabarti
Publisher : Springer
ISBN 13 : 331914376X
Total Pages : 170 pages
Book Rating : 4.3/5 (191 download)
Download or read book Motion Estimation for Video Coding written by Indrajit Chakrabarti and published by Springer. This book was released on 2015-01-13 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need of video compression in the modern age of visual communication cannot be over-emphasized. This monograph will provide useful information to the postgraduate students and researchers who wish to work in the domain of VLSI design for video processing applications. In this book, one can find an in-depth discussion of several motion estimation algorithms and their VLSI implementation as conceived and developed by the authors. It records an account of research done involving fast three step search, successive elimination, one-bit transformation and its effective combination with diamond search and dynamic pixel truncation techniques. Two appendices provide a number of instances of proof of concept through Matlab and Verilog program segments. In this aspect, the book can be considered as first of its kind. The architectures have been developed with an eye to their applicability in everyday low-power handheld appliances including video camcorders and smartphones.
Download or read book New Efficient Block-based Motion Estimation Algorithms for Video Compression and Their Hardware Implementations written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Video compression technology aims at compressing large amount of video data for efficient transmission and storage without significant loss of quality. Most video compression techniques rely on removing temporal data redundancy between frames using motion estimation and motion compensation techniques which are generally very computationally expensive. The objective of the research done in this thesis is to develop new efficient motion estimation techniques that reduce the computational complexity of motion estimation. The thesis presents a new prediction technique referred to as weighted sum block matching (WSBM) which dynamically reduces the computational complexity by limiting the search to a small subset of the search area. Simulation results have shown that adding WSBM to some well-known search algorithms reduces their computational complexity by 6-1.5 without affecting the visual quality of the reconstructed video frames. The thesis also presents two new algorithms based on the simplex optimization method. the simplex based block matching algorithm (SMPLX) and the flexible triangle search (FTS). Both techniques use a triangle that moves inside the search area and checks only positions that lie at its vertices. As a result the computational complexity of the search is reduced since it depends directly on the number of positions checked. The techniques can change the size and orientation of the search triangle during the search. The changes make the search highly flexible and efficient and reduce the number of search positions to be checked compared to those in other search algorithms. The SMPLX uses equations based on the simplex optimization method to compute the new triangle size and orientation. The FTS, on the other hand, was implemented to be more suitable for a digital search grid by using look-up tables and integer computations. The two algorithms were implemented as part of the H.263 and H.264 encoders. Both algorithms were compared to the state of the a.
Author : Mohamed Mohamed Rehan
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book New Efficient Block-based Motion Estimation Algorithms for Video Compression and Their Hardware Implementations written by Mohamed Mohamed Rehan and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jing Cai
Publisher :
ISBN 13 :
Total Pages : 246 pages
Book Rating : 4.:/5 (656 download)
Download or read book Computationally Efficient Lossy and Lossless Motion Estimation Algorithms written by Jing Cai and published by . This book was released on 2010 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ka Ho Ng
Publisher :
ISBN 13 :
Total Pages : 314 pages
Book Rating : 4.:/5 (243 download)
Download or read book Highly Efficient Motion Estimation Algorithms in Video Coding written by Ka Ho Ng and published by . This book was released on 2008 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert M. Armitano
Publisher :
ISBN 13 :
Total Pages : 492 pages
Book Rating : 4.:/5 (364 download)
Download or read book Efficient Motion-estimation Algorithms for Video Coding written by Robert M. Armitano and published by . This book was released on 1996 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter M. Kuhn
Publisher : Springer Science & Business Media
ISBN 13 : 1475744749
Total Pages : 242 pages
Book Rating : 4.4/5 (757 download)
Download or read book Algorithms, Complexity Analysis and VLSI Architectures for MPEG-4 Motion Estimation written by Peter M. Kuhn and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: MPEG-4 is the multimedia standard for combining interactivity, natural and synthetic digital video, audio and computer-graphics. Typical applications are: internet, video conferencing, mobile videophones, multimedia cooperative work, teleteaching and games. With MPEG-4 the next step from block-based video (ISO/IEC MPEG-1, MPEG-2, CCITT H.261, ITU-T H.263) to arbitrarily-shaped visual objects is taken. This significant step demands a new methodology for system analysis and design to meet the considerably higher flexibility of MPEG-4. Motion estimation is a central part of MPEG-1/2/4 and H.261/H.263 video compression standards and has attracted much attention in research and industry, for the following reasons: it is computationally the most demanding algorithm of a video encoder (about 60-80% of the total computation time), it has a high impact on the visual quality of a video encoder, and it is not standardized, thus being open to competition. Algorithms, Complexity Analysis, and VLSI Architectures for MPEG-4 Motion Estimation covers in detail every single step in the design of a MPEG-1/2/4 or H.261/H.263 compliant video encoder: Fast motion estimation algorithms Complexity analysis tools Detailed complexity analysis of a software implementation of MPEG-4 video Complexity and visual quality analysis of fast motion estimation algorithms within MPEG-4 Design space on motion estimation VLSI architectures Detailed VLSI design examples of (1) a high throughput and (2) a low-power MPEG-4 motion estimator. Algorithms, Complexity Analysis and VLSI Architectures for MPEG-4 Motion Estimation is an important introduction to numerous algorithmic, architectural and system design aspects of the multimedia standard MPEG-4. As such, all researchers, students and practitioners working in image processing, video coding or system and VLSI design will find this book of interest.
Author : Jiandong Shen
Publisher :
ISBN 13 :
Total Pages : 224 pages
Book Rating : 4.:/5 (466 download)
Download or read book Efficient Motion Estimation and Qunatization Algorithms for Low-bit-rate Video Coding written by Jiandong Shen and published by . This book was released on 2000 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chi Wai Lam
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.:/5 (576 download)
Download or read book Efficient Block-matching Motion Estimation Algorithms for Video Coding written by Chi Wai Lam and published by . This book was released on 2004 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Chunjiang Duanmu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book New Motion Estimation Techniques and Their SIMD Implementations for Video Coding written by Chunjiang Duanmu and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Borko Furht
Publisher : Springer Science & Business Media
ISBN 13 : 1461562414
Total Pages : 168 pages
Book Rating : 4.4/5 (615 download)
Download or read book Motion Estimation Algorithms for Video Compression written by Borko Furht and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Video technology promises to be the key for the transmission of motion video. A number of video compression techniques and standards have been introduced in the past few years, particularly the MPEG-1 and MPEG-2 for interactive multimedia and for digital NTSC and HDTV applications, and H.2611H.263 for video telecommunications. These techniques use motion estimation techniques to reduce the amount of data that is stored and transmitted for each frame. This book is about these motion estimation algorithms, their complexity, implementations, advantages, and drawbacks. First, we present an overview of video compression techniques with an emphasis to techniques that use motion estimation, such as MPEG and H.2611H.263. Then, we give a survey of current motion estimation search algorithms, including the exhaustive search and a number of fast search algorithms. An evaluation of current search algorithms, based on a number of experiments on several test video sequences, is presented as well. The theoretical framework for a new fast search algorithm, Densely-Centered Uniform-P Search (DCUPS), is developed and presented in the book. The complexity of the DCUPS algorithm is comparable to other popular motion estimation techniques, however the algorithm shows superior results in terms of compression ratios and video qUality. We should stress out that these new results, presented in Chapters 4 and 5, have been developed by Joshua Greenberg, as part of his M.Sc. thesis entitled "Densely-Centered Uniform P-Search: A Fast Motion Estimation Algorithm" (FAU, 1996).
Author : Raymond Westwater
Publisher : Springer
ISBN 13 : 0585323135
Total Pages : 164 pages
Book Rating : 4.5/5 (853 download)
Download or read book Real-Time Video Compression written by Raymond Westwater and published by Springer. This book was released on 2007-08-28 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Jiao Wang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)
Download or read book An Efficient Motion Estimation Method for H.264-Based Video Transcoding with Arbitrary Spatial Resolution Conversion written by Jiao Wang and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jayesh Dubhashi
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (933 download)
Download or read book Complexity Reduction of Motion Estimation in HEVC written by Jayesh Dubhashi and published by . This book was released on 2015 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: The High Efficiency Video Coding (HEVC) standard is the latest video coding project developed by the Joint Collaborative Team on Video Coding (JCT-VC) which involves the International Telecommunication Unit (ITU-T) Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG) standardization organizations. The HEVC standard is an optimization of the previous standard H.264/AVC (Advanced Video coding) with the bit-rate reduction of about 50% at the same visual quality. The most complex and time consuming process in the HEVC encoding is the motion estimation. The process involves finding the best matching block in the current frame by comparing it with a reference frame. Unlike, H.264 which had fixed sized blocks, HEVC has variable sized blocks which reduce the number of bits required by certain blocks in the frame where there is no motion change. But still the process of finding the best match is very time consuming and imposes computational complexity. Various algorithms like three-step search, diamond search and square search have been developed to reduce the computational complexity of the motion estimation module. The complexity can be further reduced by using an early termination technique to end the search process once it reaches a certain threshold. In this thesis, an algorithm is proposed for early termination of the search points by calculating a threshold. The algorithm is based on the predicted motion vector and the sum of absolute differences of the predicted motion vector for the search points. It is observed that if the prediction to the starting point is precise, then it can be used to calculate a threshold value and if any search point goes below the threshold, it can be declared as the best match. The experimental results based on the proposed algorithm tested on various video sequences show a reduction of the encoding time by about 5% to 17% with negligible Peak Signal to Noise Ratio (PSNR) loss ( less than 1 dB) as compared to the existing algorithm. The algorithm is more efficient for SD and HD resolution videos. The bit-rate increase is from 2% to 13.8 %. Metrics like Bjontegaard (BD)-PSNR and BD-Bit-rate are also used.
Author : Guilherme Corrêa
Publisher : Springer
ISBN 13 : 3319257781
Total Pages : 246 pages
Book Rating : 4.3/5 (192 download)
Download or read book Complexity-Aware High Efficiency Video Coding written by Guilherme Corrêa and published by Springer. This book was released on 2015-12-29 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses computational complexity of High Efficiency Video Coding (HEVC) encoders with coverage extending from the analysis of HEVC compression efficiency and computational complexity to the reduction and scaling of its encoding complexity. After an introduction to the topic and a review of the state-of-the-art research in the field, the authors provide a detailed analysis of the HEVC encoding tools compression efficiency and computational complexity. Readers will benefit from a set of algorithms for scaling the computational complexity of HEVC encoders, all of which take advantage from the flexibility of the frame partitioning structures allowed by the standard. The authors also provide a set of early termination methods based on data mining and machine learning techniques, which are able to reduce the computational complexity required to find the best frame partitioning structures. The applicability of the proposed methods is finally exemplified with an encoding time control system that employs the best complexity reduction and scaling methods presented throughout the book. The methods presented in this book are especially useful in power-constrained, portable multimedia devices to reduce energy consumption and to extend battery life. They can also be applied to portable and non-portable multimedia devices operating in real time with limited computational resources.
Author : Vivienne Sze
Publisher : Springer
ISBN 13 : 3319068954
Total Pages : 384 pages
Book Rating : 4.3/5 (19 download)
Download or read book High Efficiency Video Coding (HEVC) written by Vivienne Sze and published by Springer. This book was released on 2014-08-23 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides developers, engineers, researchers and students with detailed knowledge about the High Efficiency Video Coding (HEVC) standard. HEVC is the successor to the widely successful H.264/AVC video compression standard, and it provides around twice as much compression as H.264/AVC for the same level of quality. The applications for HEVC will not only cover the space of the well-known current uses and capabilities of digital video – they will also include the deployment of new services and the delivery of enhanced video quality, such as ultra-high-definition television (UHDTV) and video with higher dynamic range, wider range of representable color, and greater representation precision than what is typically found today. HEVC is the next major generation of video coding design – a flexible, reliable and robust solution that will support the next decade of video applications and ease the burden of video on world-wide network traffic. This book provides a detailed explanation of the various parts of the standard, insight into how it was developed, and in-depth discussion of algorithms and architectures for its implementation.
