23 June 2003 Recursively weighting pixel domain intra prediction on H.264
Author Affiliations +
Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.501045
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland
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.
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Hideaki Kimata, Hideaki Kimata, Masaki Kitahara, Masaki Kitahara, Yoshiyuki Yashima, Yoshiyuki Yashima, "Recursively weighting pixel domain intra prediction on H.264", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.501045; https://doi.org/10.1117/12.501045

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