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检索条件"主题词=Picture coding"
34 条 记 录,以下是1-10 订阅
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DPCM picture coding USING TWO-DIMENSIONAL QUANTIZER
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SIGNAL PROCESSING 1986年 第3期10卷 315-322页
作者: KRISHNASAMI, P FARUQUI, MN Department of Electronics and Communication Engineering College of Engineering Jawaharlal Nehru Technological University Kakinada 533003 India Department of Electronics and Electrical Communication Engineering Indian Institute of Technology Kharagpur 721302 India
For achieving an improved performance of a DPCM coder used for encoding picture signals, it is important to design an efficient predictor and an efficient quantizer. In the DPCM coder, the improvement in SNR achieved ... 详细信息
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Rate-perceptual-distortion optimization (RpDO) based picture coding-Issues and Challenges  19
Rate-perceptual-distortion optimization (RpDO) based picture...
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19th International Conference on Digital Signal Processing (DSP)
作者: Wu, Hong Ren Lin, Weisi Ngan, King Ngi RMIT Univ Sch Elect & Comp Engn Melbourne Vic Australia Nanyang Technol Univ Sch Comp Engn Singapore 639798 Singapore Chinese Univ Hong Kong Dept Elect Engn Hong Kong Hong Kong Peoples R China
Perceptual image and video coders have been reported extensively in the literature with a recent survey listing sixteen representative PVCs (perceptual video coders) for single-view video coding, ten of which conform ... 详细信息
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picture coding employing B-spline surfaces with multiple vertices
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ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS 1997年 第2期80卷 55-65页
作者: Watanabe, T Toshiba Corp Kawasaki Japan
The effect of the B-spline is that the same result as processing the generated surface is obtained only by providing the image processing to the values at the vertices of the polygon. By having the value of the point ... 详细信息
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picture coding MAKING USE OF B-SPLINE SURFACES
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ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS 1995年 第7期78卷 17-29页
作者: WATANABE, T Member Research and Development Center Toshiba Corporation Kawasaki Japan 210
When the B-spline surface is used in the image representation, it suffices only to apply the image processing to the polygon vertices to derive the same result as in the processing of the whole original surface. If a ... 详细信息
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Rate control method for B-spline picture coding
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ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS 1997年 第6期80卷 59-68页
作者: Watanabe, T Research and Development Center Toshiba Corporation Kawasaki 210 Japan Hokkaido University Department of Electronic Engineering Japan Toshiba Japan Research and Development Center Japan Stanford University United States Institute of Television Engineering IEEE Japan
As a coding algorithm in which picture processing can be applied directly to the compressed data, the author has proposed a surface-fitting method (B-spline coding) for the variation of the pixel values using the B-sp... 详细信息
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Performance improvement for picture coding making use of B-spline surfaces
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ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS 1998年 第7期81卷 55-65页
作者: Watanabe, T Toshiba Corp Ctr Res & Dev Kawasaki Kanagawa 210 Japan
We have studied a picture coding system that can directly process compressed picture data, and have proposed a pixel value interpolation method using B-spline surfaces. We showed that its compression performance excee... 详细信息
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picture coding employing B-spline surfaces with multiple vertices
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Electronics and Communications in Japan (Part I: Communications) 1998年 第2期80卷
作者: Toshiaki Watanabe Research & Development Center Toshiba Corporation Kawasaki Japan 210
The effect of the B-spline is that the same result as processing the generated surface is obtained only by providing the image processing to the values at the vertices of the polygon. By having the value of the point ... 详细信息
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Rate control method for B-spline picture coding
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Electronics and Communications in Japan (Part I: Communications) 1998年 第6期80卷
作者: Toshiaki Watanabe Research & Development Center Toshiba Corporation Kawasaki Japan 210
As a coding algorithm in which picture processing can be applied directly to the compressed data, the author has proposed a surface-fitting method (B-spline coding) for the variation of the pixel values using the B-sp... 详细信息
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ADAPTIVE PREDICTION DIFFERENTIAL PCM coding FOR TELEVISION - picture QUALITY, DATA RATE REDUCTION AND SENSITIVITY TO TRANSMISSION ERRORS
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ANNALES DES TELECOMMUNICATIONS-ANNALS OF TELECOMMUNICATIONS 1982年 第7-8期37卷 299-324页
作者: KRETZ, F CCETT/Laboratoires du CNET 35013 Rennes 1266 Cedex BP France
AnalyseCet article est consacré à l’étude des algorithmes de codage d’images de télévision du type MICdifférentiel à prédiction adaptative. L’adaptativité peut jouer sur... 详细信息
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Performances analysis of a transmission system for H263 compressed and turbo-coded video sequences over a UMTS/TDD downlink
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ANNALS OF TELECOMMUNICATIONS 2002年 第11-12期57卷 1149-1170页
作者: Farah, J Marx, F Arndt, M France Telecom R&D DIH F-38243 Meylan France
The aim of this paper is to present a comparative study of the performances, in terms of the mean PSNR (Peak Signal to Noise Ratio), of a UMTS/TDD transmission system for H263 compressed and turbo-coded video sequence... 详细信息
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