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Proceedings Paper

Recursively weighting pixel domain intra prediction on H.264
Author(s): Hideaki Kimata; Masaki Kitahara; Yoshiyuki Yashima
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Paper Abstract

Intra coding for lossy block base transform video coding and still picture coding has been studied. In H.264, pixel domain prediction is applied, where all pixel values in a block are predicted from decoded images in surrounding blocks. There are some advantages in pixel domain prediction comparing with DCT domain prediction. One thing is that in pixel domain prediction, residual data at block boundaries becomes smaller. On the other hand, in pixel base prediction scheme for lossless coding, each pixel value is predicted from surrounding pixels generally. In Multiplicative Autoregressive Models (MAR) or JPEG-LS, each pixel is predicted from some neighboring pixels. This pixel base prediction scheme is more effective to reduce prediction error than block base prediction. In this paper, the new intra prediction method, Recursively Weighting pixel domain Intra Prediction (RWIP) method for block base transform coding is proposed. The RWIP applies similar approach to pixel base prediction scheme in order to reduce prediction error more than the conventional block base prediction scheme, especially for blur or complicated directional edge images. This paper also demonstrates the efficiency of the RWIP over the normal intra prediction of H.264.

Paper Details

Date Published: 23 June 2003
PDF: 8 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.501045
Show Author Affiliations
Hideaki Kimata, NTT Cyber Space Labs. (Japan)
Masaki Kitahara, NTT Cyber Space Labs. (Japan)
Yoshiyuki Yashima, NTT Cyber Space Labs. (Japan)


Published in SPIE Proceedings Vol. 5150:
Visual Communications and Image Processing 2003
Touradj Ebrahimi; Thomas Sikora, Editor(s)

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