基于快速等强度映射的MPEG编码运动场优化计算方法

2003 IEEE International Workshop on Computer Architectures for Machine Perception Pub Date : 2003-05-12 DOI:10.1109/CAMP.2003.1598173

T. Darwish, G. Seetharaman, M. Bayoumi

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引用次数: 0

摘要

给定一个具有空间和时间相关性的视频序列，运动估计的目标就是找到并准确地表示这种相关性。块匹配算法主要作为运动估计单元的核心。搜索算法包括FSBMA、TSSMA、对数等。计算二维仿射运动至少需要两个坐标系中的3个等强度质心。访问多达8个等强度质心允许两个独立的仿射运动。采用虚拟位移法形成线性约束

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A fast isointensity maps based approach to optimal motion field computation for MPEG coding

Given a video sequence characterized by correlations in space and time, the objective of motion estimation is to find and accurately represent such correlations. Block matching algorithms are mainly used as the core of the motion estimation unit. Search algorithms include FSBMA, TSSMA, logarithmic etc.. At least 3 isointensity centroids in two frames are required to compute 2-D affine motion. Access to up to 8 isointensity centroids allow for two independent affine motions. Virtual displacement method is used to form linear constraints

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2003 IEEE International Workshop on Computer Architectures for Machine Perception

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