Analysis of prediction algorithms for residual compression in a lossy to lossless scalable video coding system based on HEVC

Andreas Heindel; Eugen Wige; André Kaup

doi:10.1117/12.2061597

23 September 2014 Analysis of prediction algorithms for residual compression in a lossy to lossless scalable video coding system based on HEVC

Andreas Heindel, Eugen Wige, André Kaup

Author Affiliations +

Proceedings Volume 9217, Applications of Digital Image Processing XXXVII; 92170M (2014) https://doi.org/10.1117/12.2061597
Event: SPIE Optical Engineering + Applications, 2014, San Diego, California, United States

Abstract

Lossless image and video compression is required in many professional applications. However, lossless coding results in a high data rate, which leads to a long wait for the user when the channel capacity is limited. To overcome this problem, scalable lossless coding is an elegant solution. It provides a fast accessible preview by a lossy compressed base layer, which can be refined to a lossless output when the enhancement layer is received. Therefore, this paper presents a lossy to lossless scalable coding system where the enhancement layer is coded by means of intra prediction and entropy coding. Several algorithms are evaluated for the prediction step in this paper. It turned out that Sample-based Weighted Prediction is a reasonable choice for usual consumer video sequences and the Median Edge Detection algorithm is better suited for medical content from computed tomography. For both types of sequences the efficiency may be further improved by the much more complex Edge-Directed Prediction algorithm. In the best case, in total only about 2.7% additional data rate has to be invested for scalable coding compared to single-layer JPEG-LS compression for usual consumer video sequences. For the case of the medical sequences scalable coding is even more efficient than JPEG-LS compression for certain values of QP.

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Andreas Heindel, Eugen Wige, and André Kaup "Analysis of prediction algorithms for residual compression in a lossy to lossless scalable video coding system based on HEVC", Proc. SPIE 9217, Applications of Digital Image Processing XXXVII, 92170M (23 September 2014); https://doi.org/10.1117/12.2061597

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