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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 : 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 : Shilpa Metkar
Publisher : Springer Science & Business Media
ISBN 13 : 8132210972
Total Pages : 70 pages
Book Rating : 4.1/5 (322 download)
Download or read book Motion Estimation Techniques for Digital Video Coding written by Shilpa Metkar and published by Springer Science & Business Media. This book was released on 2013-03-15 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with the development of a methodology to estimate the motion field between two frames for video coding applications. This book proposes an exhaustive study of the motion estimation process in the framework of a general video coder. The conceptual explanations are discussed in a simple language and with the use of suitable figures. The book will serve as a guide for new researchers working in the field of motion estimation techniques.
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 : Borko Furht
Publisher : Springer
ISBN 13 : 9781461378631
Total Pages : 164 pages
Book Rating : 4.3/5 (786 download)
Download or read book Motion Estimation Algorithms for Video Compression written by Borko Furht and published by Springer. This book was released on 2013-10-03 with total page 164 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 :
Publisher :
ISBN 13 :
Total Pages : 368 pages
Book Rating : 4.:/5 (926 download)
Download or read book Analogue Implementation of Motion Estimation Processors for Digital Video Coding written by and published by . This book was released on 2005 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zhaohua Yi
Publisher :
ISBN 13 :
Total Pages : 45 pages
Book Rating : 4.:/5 (918 download)
Download or read book Design and Implementation of Fast Motion Estimation in Modern Video Compression on GPU written by Zhaohua Yi and published by . This book was released on with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt: Motion estimation is the most compute expensive part of high definition video compression. It accounts for more than 50\% of overall execution. Therefore, improving the performance of motion estimation can make significant impact on the overall performance of video compression. The performance of motion estimation can be improved in two aspects: algorithm and implementation. This thesis touches both aspects. We first propose an innovative motion estimation algorithm by replacing the traditional block matching method which comparing blocks pixel by pixel with a brand new method which based on LBP (Local Binary Pattern) code. Our new method first encodes the original video frames into LBP code and then compares the blocks only using the LBP code. Our algorithm reduces the amount of computation significantly by avoiding many pixel by pixel comparisons present in traditional block matching approaches. Using public benchmarks our experiments show our proposed motion estimation algorithm runs 5 times faster than a traditional algorithm. Furthermore, we accelerate our proposed algorithm on GPUs. Motion estimation processes of all blocks are offloaded to GPU and accelerated in parallel. Our GPU implementation runs 9 times faster than CPU implementation
Author : Vikram Arkalgud Chandrasetty
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783843375993
Total Pages : 76 pages
Book Rating : 4.3/5 (759 download)
Download or read book Motion Estimation Technique for H 264 Advanced Video Coder written by Vikram Arkalgud Chandrasetty and published by LAP Lambert Academic Publishing. This book was released on 2010-11 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Video compression is an active area for potential research. Due to the limitations in the available bandwidth and storage space for high quality multimedia content like - video broadcasting and DVD video data, video compression has become very much necessary to keep up the ever growing demand, yet maintaining the quality in decoded video. Motion Estimation technique in a video coder takes advantage of the temporal redundancy present in video data to achieve substantial compression. The block matching efficiency of the Motion Estimation algorithm, feasibility for hardware implementation and multiple frame storage delays are some of the key challenges faced in implementing a Motion Estimation block. In this work, a software model of Motion Estimation block for H.264 Advanced Video Coder is designed. One Step Search Motion Estimation algorithm is chosen for hardware modeling. The architecture of the model is designed to maximize the throughput of the system by using dual residual energy computation and comparison units for parallel processing of frame data. The hardware model is succesfully implemented and tested on Xilinx Virtex-4 FPGA.
Author : Thomas Wiegand
Publisher : Springer Science & Business Media
ISBN 13 : 9780792374978
Total Pages : 182 pages
Book Rating : 4.3/5 (749 download)
Download or read book Multi-Frame Motion-Compensated Prediction for Video Transmission written by Thomas Wiegand and published by Springer Science & Business Media. This book was released on 2001-09-30 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multi-Frame Motion-Compensated Prediction for Video Transmission presents a comprehensive description of a new technique in video coding and transmission. The work presented in the book has had a very strong impact on video coding standards and will be of interest to practicing engineers and researchers as well as academics. The multi-frame technique and the Lagrangian coder control have been adopted by the ITU-T as an integral part of the well known H.263 standard and are were adopted in the ongoing H.26L project of the ITU-T Video Coding Experts Group. This work will interest researchers and students in the field of video coding and transmission. Moreover, engineers in the field will also be interested since an integral part of the well known H.263 standard is based on the presented material.
Author :
Publisher :
ISBN 13 :
Total Pages : 1006 pages
Book Rating : 4.F/5 ( download)
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fouad Sabry
Publisher : One Billion Knowledgeable
ISBN 13 :
Total Pages : 123 pages
Book Rating : 4.:/5 (661 download)
Download or read book Motion Estimation written by Fouad Sabry and published by One Billion Knowledgeable. This book was released on 2024-05-12 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: What is Motion Estimation In computer vision and image processing, motion estimation is the process of determining motion vectors that describe the transformation from one 2D image to another; usually from adjacent frames in a video sequence. It is an ill-posed problem as the motion happens in three dimensions (3D) but the images are a projection of the 3D scene onto a 2D plane. The motion vectors may relate to the whole image or specific parts, such as rectangular blocks, arbitrary shaped patches or even per pixel. The motion vectors may be represented by a translational model or many other models that can approximate the motion of a real video camera, such as rotation and translation in all three dimensions and zoom. How you will benefit (I) Insights, and validations about the following topics: Chapter 1: Motion_estimation Chapter 2: Motion_compensation Chapter 3: Block-matching_algorithm Chapter 4: H.261 Chapter 5: H.262/MPEG-2_Part_2 Chapter 6: Advanced_Video_Coding Chapter 7: Global_motion_compensation Chapter 8: Block-matching_and_3D_filtering Chapter 9: Video_compression_picture_types Chapter 10: Video_super-resolution (II) Answering the public top questions about motion estimation. (III) Real world examples for the usage of motion estimation in many fields. Who this book is for Professionals, undergraduate and graduate students, enthusiasts, hobbyists, and those who want to go beyond basic knowledge or information for any kind of Motion Estimation.
Author : Avinash Kakarala
Publisher :
ISBN 13 :
Total Pages : 33 pages
Book Rating : 4.:/5 (818 download)
Download or read book Hardware Implementation of Conditional Motion Estimation in Video Coding written by Avinash Kakarala and published by . This book was released on 2011 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 816 pages
Book Rating : 4.3/5 (91 download)
Download or read book Visual Communications and Image Processing written by and published by . This book was released on 1999 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tsz Kwan Lee
Publisher :
ISBN 13 :
Total Pages : 143 pages
Book Rating : 4.:/5 (974 download)
Download or read book Motion Estimation Techniques by Exploiting Motion History and Depth Maps in Video Coding written by Tsz Kwan Lee and published by . This book was released on 2016 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work on this thesis then contrives a number of fast algorithms for motion estimation. The adoption of motion vector composition (MV composition) for a fast motion estimation scheme in a low-delay hierarchical P-frame structure is firstly proposed. It expedites the motion estimation process for distant reference frames in the hierarchical P structure. In addition, a vector selection algorithmis tailor-made with the proposed hierarchical P coding scheme to further improve the coding efficiency. Simulation results show that the proposed scheme can deliver a remarkable complexity savings and coding efficiency improvement on coding a frame in low temporal layers of the hierarchical P structure. The rest of this work proposes to perform motion locus prediction before motion estimation. By this motion locus prediction, a suitable search range can be adjusted adaptively for motion estimation. Thanks to the rapid development of MVC and 3D videos, the state-of-the-art 3D coding framework provides multi-view plus depth video (MVD) in which the depth map is additional information to be encoded in the coded bitstreams. Depth maps record the distances of various objects in the scene from a viewpoint. With the depth maps from MVD sequences, we reveal the depth variation and the spatial correlation between blocks as well as the temporal correlation between the depth maps and the motion in texture, motion locus perdition can be achieved for speeding up the texture coding in an HEVC encoder. The depth information brings new room for designing an efficient adaptive search range (ASR) algorithm in HEVC. Simulation results show that the proposed ASR algorithms can offer a significant complexity reduction with negligible loss of coded video quality.
