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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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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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Two-Degree Vanishing Moments on 2-D Non-separable GenLOT
Two-Degree Vanishing Moments on 2-D Non-separable GenLOT
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International Symposium on Intelligent Signal Processing and Communication Systems
作者: Kobayashi, Tomoya Muramatsu, Shogo Kikuchi, Hisakazu Niigata Univ Dept Elect & Elect Engn Nishi Ku Niigata 9502181 Japan
This paper proposes a novel design method of two-dimensional (2-D) non-separable linear-phase paraunitary filter banks (LPPUFB). The two-degree vanishing moment constraint is derived for the lattice structure. In the ... 详细信息
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BLOCK-WISE IMPLEMENTATION OF DIRECTIONAL GENLOT
BLOCK-WISE IMPLEMENTATION OF DIRECTIONAL GENLOT
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16th IEEE International Conference on Image Processing
作者: Muramatsu, Shogo Hiki, Minoru Niigata Univ Dept Elect & Elect Engn Nishi Ku Niigata 9502181 Japan
This paper introduces block-wise implementation of 2-D nonseparable linear-phase paraunitary filter banks (LPPUFB) and shows a directional design approach. As a previous work, the authors have proposed a lattice struc... 详细信息
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Quality evaluation and nonuniform compression of geometrically distorted images using the quadtree distortion map
Quality evaluation and nonuniform compression of geometrical...
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6th Workshop on Nonlinear Signal and Image Processing
作者: Costa, C De Natale, FGB Granelli, F Univ Trent Dept Informat & Commun Technol DIT I-38050 Trento Italy
The paper presents an analysis of the effects of lossy compression algorithms applied to images affected by geometrical distortion. it will be shown that the encoding-decoding process results in a nonhomogeneous image... 详细信息
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Quality evaluation and nonuniform compression of geometrically distorted images using the quadtree distortion map
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EURASIP JOURNAL ON APPLIED SIGNAL PROCESSING 2004年 第12期2004卷 1899-1911页
作者: Costa, C De Natale, FGB Granelli, F Univ Trent Dept Informat & Commun Technol DIT I-38050 Trento Italy
The paper presents an analysis of the effects of lossy compression algorithms applied to images affected by geometrical distortion. it will be shown that the encoding-decoding process results in a nonhomogeneous image... 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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Region support DCT (RS-DCT) for coding of arbitrarily shaped texture
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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 2002年 第5期12卷 320-330页
作者: Shishikui, Y Sakaida, S NHK Japan Broadcasting Corp Setagaya Ku Tokyo 1578510 Japan
Object-based coding is a promising technique for next-generation coding. Arbitrarily shaped texture coding is the key technique for object-based coding. This paper proposes a new technique, called "Region Support... 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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Three-layer cooperative architecture for MPEG-2 video encoder LSI
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IEICE TRANSACTIONS ON ELECTRONICS 2000年 第2期E83C卷 170-178页
作者: Ikeda, M Kondo, T Nitta, K Suguri, K Yoshitome, T Minani, T Naganuma, J Ogura, T Nippon Telegraph & Tel Corp Cyber Space Labs Yokosuka Kanagawa 2390847 Japan NTT Elect Corp LSI Business Grp Ebina 2430432 Japan
This paper presents an architecture for a single-chip MPEG-2 video encoder and demonstrates its flexibility and usefulness. The architecture based on three-layer cooperation provides flexible data-transfer that improv... 详细信息
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