FUNDAMENTAL PERFORMANCE OF IMAGE CODING SCHEMES BASED ON MULTIPULSE MODEL(International Workshop on Advanced Image Technology 2009)
スポンサーリンク
概要
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In this paper, we examine the fundamental performance of image coding schemes based on multipulse model. First, we introduce several kinds of pulse search methods (i.e., correlation method, pulse overlap search method and pulse amplitude optimization method) for the model. These pulse search methods are derived from auto-correlation function of impulse responses and cross-correlation function between host signals and impulse responses. Next, we explain the basic procedure of multipulse image coding scheme, which uses the above pulse search methods in order to encode the high frequency component of an original image. Finally, by means of computer simulation for some test images, we examine the PSNR(Peak Signal-to-Noise Ratio) and computational complexity of these methods.
- 2009-01-05
著者
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KOBAYASHI Daisuke
Graduate School of Industrial Technology, Nihon University
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Kashiwagi Takashi
Graduate School Of Electro-communications The University Of Electro-communications
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KODA Hiromu
Graduate School of Electro-Communications The University of Electro-Communications
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- FUNDAMENTAL PERFORMANCE OF IMAGE CODING SCHEMES BASED ON MULTIPULSE MODEL(International Workshop on Advanced Image Technology 2009)
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