基于块运动估计的自适应非对称菱形搜索算法

2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628) Pub Date : 2002-11-07 DOI:10.1109/ICDSP.2002.1028152

T. Sappasitwong, S. Aramvith, S. Jitapunkul, A. Tamtrakarn, P. Kitti-punyangam, H. Kortrakulkij

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引用次数: 3

摘要

提出了一种基于块的自适应非对称菱形搜索(AADS)算法。该方法利用一种基于预测运动向量的自适应搜索模式。此外，通过改变初始搜索中心位置，提高了预测精度。仿真结果表明，与常规菱形搜索相比，该算法在保证图像质量的同时，最多可减少50%的搜索点。

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Adaptive asymmetric diamond search algorithm for block-based motion estimation

We present an adaptive asymmetric diamond search (AADS) for block based motion estimation. The proposed method exploits an adaptive search pattern based on the predicted motion vector. In addition, the accuracy of the prediction is improved by changing the initial search center position. Simulation results show that the proposed algorithm can reduce the number of search points by up to about 50% compared to the regular diamond search while keeping the picture quality similar to other fast search algorithms.

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2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628)

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