Image sequence coding by multigrid motion estimation and segmentation-based coding of prediction errors

Wei Li; Frederic Dufaux

doi:10.1117/12.157973

22 October 1993 Image sequence coding by multigrid motion estimation and segmentation-based coding of prediction errors

Wei Li, Frederic Dufaux

Proceedings Volume 2094, Visual Communications and Image Processing '93; (1993) https://doi.org/10.1117/12.157973
Event: Visual Communications and Image Processing '93, 1993, Cambridge, MA, United States

Abstract

This paper presents an innovative video coding system which processes appropriately motion information by an improved motion estimation algorithm and a segmentation based coding of displaced frame differences (DFD). The proposed multigrid motion estimation algorithm with adaptive mesh leads to more uniform and accurate motion vectors, and a lower overhead information. A morphological segmentation algorithm is proposed to code DFD by sending contours and quantized high energy regions. The method is coding oriented, and has the potential of graceful degradation. Simulation results show outstanding performances of the proposed codec for image sequences in CCIR 601 format.

Citation Download Citation

Wei Li and Frederic Dufaux "Image sequence coding by multigrid motion estimation and segmentation-based coding of prediction errors", Proc. SPIE 2094, Visual Communications and Image Processing '93, (22 October 1993); https://doi.org/10.1117/12.157973

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