Target region extraction and image coding based on motion information

Jong-Bae Lee; Seong-Dae Kim

doi:10.1117/12.206780

21 April 1995 Target region extraction and image coding based on motion information

Jong-Bae Lee, Seong-Dae Kim

Proceedings Volume 2501, Visual Communications and Image Processing '95; (1995) https://doi.org/10.1117/12.206780
Event: Visual Communications and Image Processing '95, 1995, Taipei, Taiwan

Abstract

This paper describes a method of coding image sequences based on global/local motion information. The suggested method initially estimates global motion parameters and local motion vectors. Then segmentation is performed with a hierarchial clustering scheme and a quadtree algorithm in order to divide a processing image into the background and target region. Finally image coding is done by assigning more bits to the target region and less bits to background so that the target region may be reconstructed with high quality. Simulations show that the suggested algorithm performs well especially in the circumstances where background changes and target region is small enough compared with that of background.

Citation Download Citation

Jong-Bae Lee and Seong-Dae Kim "Target region extraction and image coding based on motion information", Proc. SPIE 2501, Visual Communications and Image Processing '95, (21 April 1995); https://doi.org/10.1117/12.206780

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