ARITHMETIC CODING OF VIDEO SIGNALS BASED ON ITERATION OF MOTION COMPENSATION AND MATCHING PURSUIT(INTERNATIONAL Workshop on Advanced Image Technology 2008)
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概要
- 論文の詳細を見る
This paper describes a novel video coding scheme targeting for low bit-rate applications. The scheme combines a motion compensation (MC) method with a waveform coding method called matching pursuits (MP) in a common framework of iterative operations. At each iteration, both methods are tested temporarily and the better one, which minimizes a rate-distortion cost, is alternatively carried out. Accordingly, MC and MP can be conducted in appropriate order and quality of the reconstructed image is gradually improved. This nature allows us accurate rate control by stopping the iteration at arbitrary point. Parameters needed for decoding operations are adaptively entropy coded using a multisymbol arithmetic coder. Simulation results indicate that the proposed scheme attains up-to 1.2 dB higher SNR than the H.264/AVC standard while allowing flexible rate control.
- 社団法人電子情報通信学会の論文
- 2007-12-31
著者
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YAMAMOTO Tsutomu
Department of Applied Chemistry, Kyushu Institute of Technology
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Ishikawa Masahito
Department Of Electrical Engineering Science University Of Tokyo
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Ishikawa Masahito
Department Of Electrical Engineering Faculty Of Engineering The Technological University Of Nagaoka
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Itoh Susumu
Department Of Electrical Engineering Science University Of Tokyo
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Itoh Susumu
Department Of Electrical Engineering Faculty Of Science And Technology Science University Of Tokyo
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Yamamoto Tsutomu
Department Of Electrical Engineering Science University Of Tokyo
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Matsuda Ichiro
Department Of Electrical Engineering Science University Of Tokyo
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Matsuda Ichiro
Department Of Electrical Engineering Faculty Of Science And Technology Science University Of Tokyo
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Yamamoto Tsutomu
Department Of Applied Chemistry Kyushu Institute Of Technology
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Ishikawa Masahito
Department Of Biotechnology Graduate School Of Engineering Nagoya University
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