计算机应用研究2012，Vol.29Issue(9)：3551-3553,3557,4.DOI:10.3969/j.issn.1001-3695.2012.09.093
一种针对大尺度运动的快速光流算法
Fast optical flow algorithm for large-scale motion
卫保国 1李晶1
作者信息
- 1. 西北工业大学电子信息学院,西安710072
- 折叠
摘要
Abstract
Conventional optical flow computation method must satisfy the consistent and coherent hypothesis, which is not appropriate to large-scale motion. In order to overcome the difficulty of calculating optical flow on fast and great magnitudes motion whose target displacement exceeds feature tracking window, this paper introduced the multi-scale image pyramid model and vector mapping transform, adjusting the image resolution to capture large-scale motion within small calculating window. Meanwhile, by using non-maximum suppression method to select points with large eigenvalue of image correlation matrix as strong corner feature, it reduced the cost of optical flow calculation. Experimental results show that the proposed algorithm is robust to complicated circumstances and can obtain the direction and speed of optical flow vector efficiently.关键词
光流计算/图像金字塔/强角点特征/映射变换Key words
optical flow computation/image pyramid/strong corner feature/mapping transform分类
信息技术与安全科学引用本文复制引用
卫保国,李晶..一种针对大尺度运动的快速光流算法[J].计算机应用研究,2012,29(9):3551-3553,3557,4.
