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A Study on New Hierarchical Motion Compensation Pyramid Coding  

전준현 (동국대학교 영상정보통신대학원 네트워크관리학과)
Publication Information
Journal of Broadcast Engineering / v.8, no.2, 2003 , pp. 181-197 More about this Journal
Abstract
Notion Compensation(MC) technique using Sub-Band Coding with the hierarchical structure is efficient to estimate real motion. In the hierarchical pyramid method, low-band MC pyramid method is popular, where the upper layer estimate the glover motion and next lower layer estimate the local motion. The low-band MC pyramid scheme has two problems. First, because the quantization errors at lower layer are accumulated when using coding and quantizing, it is impossible to search the exact Motion Vector(MV) Second, because of the top-down search problem in the hierarchical structure, MV mismatch in upper layer causes serious MV in lower layer So. we propose new hierarchical MC pyramid method based on edge classification. In this Paper, we show that the performance of proposed Pass-band motion compensation pyramid technique is better than low-band motion compensation pyramid. Also, in the pyramid motion estimation, we propose initial MV estimation scheme based on the edge-pattern classification. As a result, we find that PSNR was increased.
Keywords
Hierarchical Coding; SBC; Image Compression; Image Coding; Progressive Coding;
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Times Cited By KSCI : 1  (Citation Analysis)
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