Download or read book Scalable Parallel Programming Applied to H 264 AVC Decoding written by Ben Juurlink and published by Springer Science & Business Media. This book was released on 2012-06-01 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Existing software applications should be redesigned if programmers want to benefit from the performance offered by multi- and many-core architectures. Performance scalability now depends on the possibility of finding and exploiting enough Thread-Level Parallelism (TLP) in applications for using the increasing numbers of cores on a chip. Video decoding is an example of an application domain with increasing computational requirements every new generation. This is due, on the one hand, to the trend towards high quality video systems (high definition and frame rate, 3D displays, etc) that results in a continuous increase in the amount of data that has to be processed in real-time. On the other hand, there is the requirement to maintain high compression efficiency which is only possible with video codes like H.264/AVC that use advanced coding techniques. In this book, the parallelization of H.264/AVC decoding is presented as a case study of parallel programming. H.264/AVC decoding is an example of a complex application with many levels of dependencies, different kernels, and irregular data structures. The book presents a detailed methodology for parallelization of this type of applications. It begins with a description of the algorithm, an analysis of the data dependencies and an evaluation of the different parallelization strategies. Then the design and implementation of a novel parallelization approach is presented that is scalable to many core architectures. Experimental results on different parallel architectures are discussed in detail. Finally, an outlook is given on parallelization opportunities in the upcoming HEVC standard.
Download or read book Wireless Communication And Sensor Network Proceedings Of The International Conference Wcsn 2015 written by Salah Bourennance and published by World Scientific. This book was released on 2016-06-29 with total page 1047 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume collects the most up-to-date, comprehensive and state-of-the-art knowledge on wireless communication, sensor network, network technologies, services and application.Written by world renowned researchers, each chapter is original in content, featuring high-impact presentations and late-breaking contributions.Researchers and practitioners will find this edition a useful resource material and an inspirational read.
Download or read book Computational Methods and Data Engineering written by Vijayan K. Asari and published by Springer Nature. This book was released on 2022-09-08 with total page 563 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book features original papers from International Conference on Computational Methods and Data Engineering (ICCMDE 2021), organized by School of Computer Science and Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu, India, during November 25–26, 2021. The book covers innovative and cutting-edge work of researchers, developers, and practitioners from academia and industry working in the area of advanced computing.
Download or read book Transactions on High Performance Embedded Architectures and Compilers IV written by Per Stenström and published by Springer. This book was released on 2011-11-15 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transactions on HiPEAC aims at the timely dissemination of research contributions in computer architecture and compilation methods for high-performance embedded computer systems. Recognizing the convergence of embedded and general-purpose computer systems, this journal publishes original research on systems targeted at specific computing tasks as well as systems with broad application bases. The scope of the journal therefore covers all aspects of computer architecture, code generation and compiler optimization methods of interest to researchers and practitioners designing future embedded systems. This 4th issue contains 21 papers carefully reviewed and selected out of numerous submissions and is divided in four sections. The first section contains five regular papers. The second section consists of the top four papers from the 4th International Conference on High-Performance Embedded Architectures and Compilers, HiPEAC 2009, held in Paphos, Cyprus, in January 2009. The third section contains a set of six papers providing a snap-shot from the Workshop on Software and Hardware Challenges of Manycore Platforms, SHCMP 2008 held in Beijing, China, in June 2008. The fourth section consists of six papers from the 8th IEEE International Symposium on Systems, Architectures, Modeling and Simulation, SAMOS VIII (2008) held in Samos, Greece, in July 2008.
Download or read book Complexity Reduction of H 264 Using Parallel Programming written by Sudeep Prakash Gangavati and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The H.264 encoder provides for adaptive directional intra-prediction, motioncompensated inter-prediction followed by transform, quantization, deblocking filtering and either variable length encoding or arithmetic coding. All these blocks of the H.264 encoder make it highly complex as compared to previous video coding standards. There is a need for measures to reduce the complexity. This thesis aims at reducing the complexity of the .H.264 encoder by reducing the encoding time of the H.264 standard while not sacrificing the video quality, compression efficiency and bitrate by parallel programming. There are several parallel programming models that can be used. The massively parallel Graphics Processing Units (GPUs) provided by NVIDIA Corp. are used in this thesis for parallel processing. The main focus of the thesis is to reduce the time it takes for the motion estimation during the inter prediction. Motion estimation is the most compute-intensive process of H.264 and involves basic mathematical operations like subtraction and addition between the pixels of the reference frame and the frame under prediction. The subtraction between the pixels, also known as the sum of absolute differences (SAD) is done in parallel. The frame is partitioned into smaller 8 x 8 blocks and for these blocks, threads are invoked on the GPU and all the calculations are done in parallel. The largest macroblock has a size 16 x 16, if this is divided into 4 equal parts each of size 8 x 8, a set of threads called blocks are invoked that carry out the operation for each particular 8 x 8 block. Up to 50% reduction in total time is observed for various input sequences of different characteristics. For implementation of the encoder, JM 16.0 reference software is used in this thesis. The manual for this reference is available and provides reference of different encoder parameters, syntax, and additional information regarding the best practices and configurations of the software.
Download or read book Advances in Image and Video Technology written by Yo-Sung Ho and published by Springer. This book was released on 2011-11-21 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two-volume proceedings LNCS 7087 + 7088 constitute the proceedings of the 5th Pacific Rim Symposium, PSIVT 2011, held in Gwangju, Korea, in November 2011. The total of 71 revised papers was carefully reviewed and selected from 168 submissions. The topics covered are: image/video coding and transmission; image/video processing and analysis; imaging and graphics hardware and visualization; image/video retrieval and scene understanding; biomedical image processing and analysis; biometrics and image forensics; and computer vision applications.
Download or read book High Performance Embedded Architectures and Compilers written by André Seznec and published by Springer Science & Business Media. This book was released on 2009-01-12 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Fourth International Conference on High Performance Embedded Architectures and Compilers, HiPEAC 2009, held in Paphos, Cyprus, in January 2009. The 27 revised full papers presented together with 2 invited keynote paper were carefully reviewed and selected from 97 submissions. The papers are organized in topical sections on dynamic translation and optimisation, low level scheduling, parallelism and resource control, communication, mapping for CMPs, power, cache issues as well as parallel embedded applications.
Download or read book Power Efficient H 264 Video Decoding in Embedded Multiprocessor written by Jihong Kim and published by . This book was released on 2009 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents a novel methodology that enables power efficient video decoding in an embedded system based on MPSoC (Multiprocessor System on Chip). This methodology is a physical combination of parallel processing which reduces power consumption of processors by exploiting thread-level parallelism and Dynamic Voltage Frequency Scaling (DVFS) that allows a processor to dynamically change its speed and voltage at run time. The video decoding process must be well optimized to improve performance continuously due to the many complex computation units. Since these intense computation functions have their own specific patterns, they were mainly performed by specialized hardware device. This kind of device, one that combines a main processor and an Intellectual Property (IP), still dominates the multimedia market place because of its adjustable performance, power, and convenience of manufacturing, even though the powerful multi-core embedded processor was released the market a few years ago. Approach of this thesis exploits inherent advantages of the multiprocessor without additional hardware implementation, and presents a thorough analysis of video decoding process in an embedded system. A target application is H.264/AVC, a well-adapted video coding standard for current multimedia environments which is used for many portable devices.
Download or read book Video Compression written by Amal Punchihewa and published by BoD – Books on Demand. This book was released on 2012-03-23 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Even though video compression has become a mature field, a lot of research is still ongoing. Indeed, as the quality of the compressed video for a given size or bit rate increases, so does users’ level of expectations and their intolerance to artefacts. The development of compression technology has enabled number of applications; key applications in television broadcast field. Compression technology is the basis for digital television. The “Video Compression” book was written for scientists and development engineers. The aim of the book is to showcase the state of the art in the wider field of compression beyond encoder centric approach and to appreciate the need for video quality assurance. It covers compressive video coding, distributed video coding, motion estimation and video quality.
Download or read book VLSI Design for Video Coding written by Youn-Long Steve Lin and published by Springer Science & Business Media. This book was released on 2009-12-29 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt: High definition video requires substantial compression in order to be transmitted or stored economically. Advances in video coding standards from MPEG-1, MPEG-2, MPEG-4 to H.264/AVC have provided ever increasing coding efficiency, at the expense of great computational complexity which can only be delivered through massively parallel processing. This book will present VLSI architectural design and chip implementation for high definition H.264/AVC video encoding, using a state-of-the-art video application, with complete VLSI prototype, via FPGA/ASIC. It will serve as an invaluable reference for anyone interested in VLSI design and high-level (EDA) synthesis for video.
Download or read book Journal of Frontiers of Computer Science and Technology written by and published by . This book was released on 2009-07 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Journal of Frontiers of Computer Science and Technology
Download or read book The H 264 Advanced Video Compression Standard written by Iain E. Richardson and published by John Wiley & Sons. This book was released on 2011-08-24 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: H.264 Advanced Video Coding or MPEG-4 Part 10 is fundamental to a growing range of markets such as high definition broadcasting, internet video sharing, mobile video and digital surveillance. This book reflects the growing importance and implementation of H.264 video technology. Offering a detailed overview of the system, it explains the syntax, tools and features of H.264 and equips readers with practical advice on how to get the most out of the standard. Packed with clear examples and illustrations to explain H.264 technology in an accessible and practical way. Covers basic video coding concepts, video formats and visual quality. Explains how to measure and optimise the performance of H.264 and how to balance bitrate, computation and video quality. Analyses recent work on scalable and multi-view versions of H.264, case studies of H.264 codecs and new technological developments such as the popular High Profile extensions. An invaluable companion for developers, broadcasters, system integrators, academics and students who want to master this burgeoning state-of-the-art technology. "[This book] unravels the mysteries behind the latest H.264 standard and delves deeper into each of the operations in the codec. The reader can implement (simulate, design, evaluate, optimize) the codec with all profiles and levels. The book ends with extensions and directions (such as SVC and MVC) for further research." Professor K. R. Rao, The University of Texas at Arlington, co-inventor of the Discrete Cosine Transform
Download or read book Parallel Algorithms and Architectures for Low Power Video Decoding written by Vivienne Sze and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Parallelism coupled with voltage scaling is an effective approach to achieve high processing performance with low power consumption. This thesis presents parallel architectures and algorithms designed to deliver the power and performance required for current and next generation video coding. Coding efficiency, area cost and scalability are also addressed. First, a low power video decoder is presented for the current state-of-the-art video coding standard H.264/AVC. Parallel architectures are used along with voltage scaling to deliver high definition (HD) decoding at low power levels. Additional architectural optimizations such as reducing memory accesses and multiple frequency/voltage domains are also described. An H.264/AVC Baseline decoder test chip was fabricated in 65-nm CMOS. It can operate at 0.7 V for HD (720p, 30 fps) video decoding and with a measured power of 1.8 mW. The highly scalable decoder can tradeoff power and performance across>100x range. Second, this thesis demonstrates how serial algorithms, such as Context-based Adaptive Binary Arithmetic Coding (CABAC), can be redesigned for parallel architectures to enable high throughput with low coding efficiency cost. A parallel algorithm called the Massively Parallel CABAC (MP-CABAC) is presented that uses syntax element partitions and interleaved entropy slices to achieve better throughput-coding efficiency and throughput-area tradeoffs than H.264/AVC. The parallel algorithm also improves scalability by providing a third dimension to tradeoff coding efficiency for power and performance. Finally, joint algorithm-architecture optimizations are used to increase performance and reduce area with almost no coding penalty. The MP-CABAC is mapped to a highly parallel architecture with 80 parallel engines, which together delivers>10x higher throughput than existing H.264/AVC CABAC implementations. A MP-CABAC test chip was fabricated in 65-nm CMOS to demonstrate the power-performance-coding efficiency tradeoff.
Download or read book Computer Vision and Graphics written by Leonard Bolc and published by Springer. This book was released on 2012-10-13 with total page 769 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the International Conference on Computer Vision and Graphics, ICCVG 2012, held in Warsaw, Poland, in September 2012. The 89 revised full papers presented were carefully reviewed and selected from various submissions. The papers are organized in topical sections on computer graphics, computer vision and visual surveillance.
Download or read book Cloud Technology Concepts Methodologies Tools and Applications written by Management Association, Information Resources and published by IGI Global. This book was released on 2014-10-31 with total page 2300 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the Web grows and expands into ever more remote parts of the world, the availability of resources over the Internet increases exponentially. Making use of this widely prevalent tool, organizations and individuals can share and store knowledge like never before. Cloud Technology: Concepts, Methodologies, Tools, and Applications investigates the latest research in the ubiquitous Web, exploring the use of applications and software that make use of the Internets anytime, anywhere availability. By bringing together research and ideas from across the globe, this publication will be of use to computer engineers, software developers, and end users in business, education, medicine, and more.
Download or read book Digital Video written by Floriano De Rango and published by BoD – Books on Demand. This book was released on 2010-02-01 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book tries to address different aspects and issues related to video and multimedia distribution over the heterogeneous environment considering broadband satellite networks and general wireless systems where wireless communications and conditions can pose serious problems to the efficient and reliable delivery of content. Specific chapters of the book relate to different research topics covering the architectural aspects of the most famous DVB standard (DVB-T, DVB-S/S2, DVB-H etc.), the protocol aspects and the transmission techniques making use of MIMO, hierarchical modulation and lossy compression. In addition, research issues related to the application layer and to the content semantic, organization and research on the web have also been addressed in order to give a complete view of the problems. The network technologies used in the book are mainly broadband wireless and satellite networks. The book can be read by intermediate students, researchers, engineers or people with some knowledge or specialization in network topics.
Download or read book Handbook of Mobile Broadcasting written by Borko Furht and published by CRC Press. This book was released on 2008-04-15 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: Operators are introducing mobile television and digital video content services globally. The Handbook of Mobile Broadcasting addresses all aspects of these services, providing a comprehensive reference on DVB-H, DMB, ISDB-T, and MediaFLO. Featuring contributions from experts in the field, the text presents technical standards and distribution proto
