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Author: Mohamed Ghoneim Publisher: LAP Lambert Academic Publishing ISBN: 9783659422331 Category : Languages : en Pages : 128
Book Description
Motion estimation is a key issue in the field of moving images analysis. In the framework of video coding, it is combined with motion compensation in order to exploit the spatio temporal correlation of image sequences along the motion trajectory. It then achieves one of the most important compression factors of a video coder. By dividing each frame into rectangular blocks, motion vectors are obtained via the block matching algorithms (BMA). The full search algorithm (FS) is a brute force BMA. It searches all possible locations inside the search window in the reference frame to provide an optimal solution. However, its high computational complexity makes it often not suitable for real-time implementation. Many fast but sub-optimal algorithms are introduced to improve the performance of video coders. The present book analyses three prospects of improving the quality of existing video coding schemes. Namely, one at a time optimization, adaptive search stagey and feature domain based criteria.
Author: Mohamed Ghoneim Publisher: LAP Lambert Academic Publishing ISBN: 9783659422331 Category : Languages : en Pages : 128
Book Description
Motion estimation is a key issue in the field of moving images analysis. In the framework of video coding, it is combined with motion compensation in order to exploit the spatio temporal correlation of image sequences along the motion trajectory. It then achieves one of the most important compression factors of a video coder. By dividing each frame into rectangular blocks, motion vectors are obtained via the block matching algorithms (BMA). The full search algorithm (FS) is a brute force BMA. It searches all possible locations inside the search window in the reference frame to provide an optimal solution. However, its high computational complexity makes it often not suitable for real-time implementation. Many fast but sub-optimal algorithms are introduced to improve the performance of video coders. The present book analyses three prospects of improving the quality of existing video coding schemes. Namely, one at a time optimization, adaptive search stagey and feature domain based criteria.
Author: Shilpa Metkar Publisher: Springer Science & Business Media ISBN: 8132210972 Category : Technology & Engineering Languages : en Pages : 70
Book Description
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: Indrajit Chakrabarti Publisher: Springer ISBN: 331914376X Category : Technology & Engineering Languages : en Pages : 170
Book Description
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.
Author: Vivienne Sze Publisher: Springer ISBN: 3319068954 Category : Technology & Engineering Languages : en Pages : 384
Book Description
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.
Author: Amit Pandit Publisher: LAP Lambert Academic Publishing ISBN: 9783659181634 Category : Languages : en Pages : 84
Book Description
In this Book, the well-known techniques reducing temporal redundancies in images sequences have been discussed. The most widely used scheme is based on the estimation of motion and compensation with intra frame technique to code the prediction error is discussed in detail. The characteristics and main principles of various approaches are discussed along with advantage and disadvantages. Finally, block based motion estimation techniques that are the most widely used, have been viewed in details. Various industry standard full search and fast search block matching technique have been considered and discussed.The computational complexity and accuracy are the two extremes, so sub-optimal solutions are proposed. The reduction in processing time due to fast search schemes developed is equally supported by advancement in hardware available. In the text some fast novel Block matching algorithms are proposed for reduced complexity and computation as compared to existing and acceptable block matching algorithms
Author: Mohamed Ghoneim
Author: Mohamed Ghoneim
Author: Sungook Kim
Author: Faizul Hadi bin Mohamad Jamil
Author: Shilpa Metkar
Author: Chi Wai Lam
Author: Han-gu Yŏ
Author: Indrajit Chakrabarti
Author: Colin Manning
Author: Vivienne Sze
Author: Amit Pandit