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检索条件"主题词=Source coding"
5593 条 记 录,以下是4791-4800 订阅
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Rate-distortion optimal joint source/channel coding for robust and efficient low bit rate packet video communications
Rate-distortion optimal joint source/channel coding for robu...
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IEEE International Conference on Image Processing
作者: M. Gallant F. Kossentini Department of Electrical and Computer Engineering University of British Columbia Vancouver BC Canada
We present a rate-distortion optimal joint source/channel coding framework for efficient and robust low bit rate video communications in packet networks. The proposed algorithm combines layered coding with transport p... 详细信息
来源: 评论
Modeling of operational distortion-rate characteristics for joint source-channel coding of video
Modeling of operational distortion-rate characteristics for ...
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IEEE International Conference on Image Processing
作者: M. Bystrom T. Stockhammer ECE Department Drexel University Philadelphia PA USA Department for Communications Engineering Munich University of Technology Munich Germany
We present a method for modeling the distortion-rate characteristics of compressed video sequences. It is assumed that the source coders rely on motion-compensated prediction, and thus error propagation will contribut... 详细信息
来源: 评论
On encoding of position information in inter-vehicle communications
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IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS 2002年 第11期E85D卷 1822-1829页
作者: Goto, Y Hasegawa, T Saitama Univ Dept Elect & Elect Syst Engn Urawa Saitama 3388570 Japan
This paper discusses encoding of vehicular position information using predictive algorithms in inter-vehicle communications (IVC) from the viewpoints of source coding and noisy channels. Two vehicular driving models a... 详细信息
来源: 评论
Memory vector quantization by power series expansion [in speech coding]
Memory vector quantization by power series expansion [in spe...
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IEEE Workshop on Speech coding Proceedings
作者: T. Eriksson F. Norden Chalmers University of Technology Goteborg Sweden
Memory quantization is studied in detail. We propose a framework, power series vector quantization (PSVQ), for analysis and development of memory quantizers. Furthermore, we present an optimization algorithm for the f... 详细信息
来源: 评论
The use of multiple description coding in networking
The use of multiple description coding in networking
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IEEE International Symposium on Information Theory
作者: M. Alasti K. Sayrafian-Pour A. Ephremides N. Farvardin Zagros Networks Rockville MD USA Department of Electrical & Computer Engineering University of Maryland College Park MD USA
Consider a memoryless, loss-tolerant and delay-sensitive source, the output of which is transmitted through a packet-switched communication network. Network parameters such as congestion, route quality, link capacity ... 详细信息
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Quantizers with uniform encoders and channel optimized decoders
Quantizers with uniform encoders and channel optimized decod...
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Data Compression Conference (DCC)
作者: B. Farber K. Zeger University of California San Diego USA
Scalar quantizers with uniform encoders and channel optimized decoders are studied for uniform sources and binary symmetric channels. It is shown that the natural binary code and folded binary code induce point densit... 详细信息
来源: 评论
MAP criterion image coding using the BCJR algorithm
MAP criterion image coding using the BCJR algorithm
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IEEE International Symposium on Information Theory
作者: T. Eriksson M. Novak J.B. Anderson Dept. of Information Technology Lund University Lund Sweden
BCJR based source coding of image residuals is explored. From a trellis representation of the residual, a joint source-channel coding system is formed. The use of the BCJR algorithm is possible due to a procedure whic... 详细信息
来源: 评论
Joint error control and power allocation for video transmission over CDMA networks with multiuser detection
Joint error control and power allocation for video transmiss...
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IEEE International Conference on Communications (ICC)
作者: Shengjie Zhao Zixiang Xiong Xiaodong Wang Department of Electrical Engineering Texas A and M University College Station TX USA
Error control and power allocation for transmitting wireless video over CDMA networks are considered in conjunction with multiuser detection. We map a layered video bitstream to several CDMA fading channels and inject... 详细信息
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Csiszar's forward cutoff rate for testing between two arbitrary sources
Csiszar's forward cutoff rate for testing between two arbitr...
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IEEE International Symposium on Information Theory
作者: F. Alajaji Po-Ning Chen Z. Rached Department of Mathematics & Stats Queen's University Kingston Canada Department of Communication Engineering National Chiao Tung University Taiwan
The Csisza forward /spl beta/-cutoff rate (/spl beta/<0) for hypothesis testing is defined as the largest rate R/sub 0//spl ges/0 such that for all rates 0
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JPEG 2000: performance and evaluation
JPEG 2000: performance and evaluation
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IEEE International Conference on Systems, Man and Cybernetics
作者: A. Samet M.A. BenN Ayed M.S. Bouhlel M. Loulou N. Masmoudi L. Kamoun Laboratoire d'Electronique et des Technologies de l'Information (LETI) Ecole Nationale d'Ingénieurs de Sfax Sfax Tunisie Ecole Nationale d'Ingenieurs de Sfax Sfax TN Lab. d'Electronique et des Technol. de l'Inf. Ecole Nationale d'Ingenieurs de Sfax Tunisia
With the increasing usage of multimedia technologies, image compression requires higher performance as well as new features. To address these needs in the specific area of continuous tone still image encoding, a new s... 详细信息
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