MPEG-like pyramidal video coder

Rakeshkumar Gandhi; Limin Wang; Sethuraman Panchanathan; Morris Goldberg

doi:10.1117/12.157988

22 October 1993 MPEG-like pyramidal video coder

Rakeshkumar Gandhi, Limin Wang, Sethuraman Panchanathan, Morris Goldberg

Proceedings Volume 2094, Visual Communications and Image Processing '93; (1993) https://doi.org/10.1117/12.157988
Event: Visual Communications and Image Processing '93, 1993, Cambridge, MA, United States

Abstract

In this paper, we propose an MPEG-like video coder using a 3-dimensional (3D) adaptive pyramid. In the 3D adaptive pyramid, the temporal or spatial contraction is selected using the corresponding prediction differences. A video codec is designed using the 3D adaptive pyramid and intra-frame vector quantization. Encoding errors introduced at the upper levels are fed-forward to the lower levels of the pyramid which makes lossless coding possible. The proposed pyramidal video coder has a number of similarities with the MPEG-I video compression standard. Simulation results for the CCITT standard test sequences indicate that the 3D adaptive pyramid reduces the lossless bit rate by a factor of two. Excellent subjective quality as well as objective quality (PSNR value of 36.6 db) are obtained at a bit rate less than T1 rate (i.e., 1.544 Mb/s). Furthermore, smooth transition is achieved in the case of scene changes without sacrificing picture quality.

Citation Download Citation

Rakeshkumar Gandhi, Limin Wang, Sethuraman Panchanathan, and Morris Goldberg "MPEG-like pyramidal video coder", Proc. SPIE 2094, Visual Communications and Image Processing '93, (22 October 1993); https://doi.org/10.1117/12.157988

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