Fast global motion estimation using threshold method

Jiali Zheng; YongDong Zhang; GuangNan Ni

doi:10.1117/12.752532

14 November 2007 Fast global motion estimation using threshold method

Jiali Zheng, YongDong Zhang, GuangNan Ni

Proceedings Volume 6789, MIPPR 2007: Medical Imaging, Parallel Processing of Images, and Optimization Techniques; 67892K (2007) https://doi.org/10.1117/12.752532
Event: International Symposium on Multispectral Image Processing and Pattern Recognition, 2007, Wuhan, China

Abstract

In this paper, a fast global motion estimation method is proposed for video coding. This method can accommodate not only a translational motion model but also a polynomial motion model. It speeds up the procedure of the global motion estimation (GME) by pre-analyzing the characteristics of the block. At the first stage, the smooth region blocks which contribute less to the GME are filtered by using a threshold method based on image intensity. Next, a threshold method based on the discrepancy of the motion vectors is used to exclude the foreground blocks from the GME. From the experimental results, we can conclude that the proposed fast global motion estimation method manages to speed up the processing of estimating the motion vector field while maintaining the coding performance.

Citation Download Citation

Jiali Zheng, YongDong Zhang, and GuangNan Ni "Fast global motion estimation using threshold method", Proc. SPIE 6789, MIPPR 2007: Medical Imaging, Parallel Processing of Images, and Optimization Techniques, 67892K (14 November 2007); https://doi.org/10.1117/12.752532

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