A STUDY ON EDGE ADAPTIVE DEBLOCKING FILTER(International Workshop on Advanced Image Technology 2009)
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概要
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Deblocking Filter (DF) is newly introduced into H.264/AVC to remove blocky artifacts. It improves the picture quality and the improved picture is set to the frame buffer for motion compensation. As a result, higher coding efficiency is achieved by DF. However, if the original image has heavilyslanted patterns, DF removes the edges to be kept because it is applied only perpendicularly to the block boundaries. In this paper, we propose Edge Adaptive Deblocking Filter (EADF) which is applied not only for the perpendicular but also for several slanted directions to deal with the problem. Simulation results showed us that EADF was especially effective for the sequence "Foreman" with PSNR gain of 0.04dB.
- 2009-01-05
著者
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Takamura Seishi
Ntt Corp. Yokosuka‐shi Jpn
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Takamura Seishi
Ntt Cyber Space Laboratories Ntt Corporation
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YASHIMA Yoshiyuki
NTT Cyber Space Laboratories, NTT Corporation
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Matsuo Shohei
NTT Cyber Space Laboratories, NTT Corporation
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Matsuo Shohei
Ntt Cyber Space Laboratories Ntt Corporation
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Yashima Yoshiyuki
Faculty Of Information And Computer Science Chiba Institute Of Technology
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Yashima Yoshiyuki
Ntt Cyber Space Laboratories Ntt Communication
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