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    • 51. 发明申请
    • MOVING OBJECT DETECTION APPARATUS AND MOVING OBJECT DETECTION METHOD
    • 移动物体检测装置和移动物体检测方法
    • US20110091073A1
    • 2011-04-21
    • US12976169
    • 2010-12-22
    • Masahiro IwasakiKunio Nobori
    • Masahiro IwasakiKunio Nobori
    • G06K9/00
    • G06T7/292G06T7/215G06T2207/10016G06T2207/20021G06T2207/30196G06T2207/30241
    • To provide a moving object detection apparatus which accurately performs region extraction, regardless of the pose or size of a moving object. The moving object detection apparatus includes: an image receiving unit receiving the video sequence; a motion analysis unit calculating movement trajectories based on motions of the image; a segmentation unit performing segmentation so as to divide the movement trajectories into subsets, and setting a part of the movement trajectories as common points shared by the subsets; a distance calculation unit calculating a distance representing a similarity between a pair of movement trajectories, for each of the subsets; a geodesic distance calculation unit transforming the calculated distance into a geodesic distance; an approximate geodesic distance calculation unit calculating an approximate geodesic distance bridging over the subsets, by integrating geodesic distances including the common points; and a region extraction unit performing clustering on the calculated approximate geodesic distance.
    • 提供一种移动物体检测装置,其能够精确地执行区域提取,而不管移动物体的姿态或尺寸如何。 移动物体检测装置包括:图像接收单元,接收视频序列; 运动分析单元,基于图像的运动来计算运动轨迹; 分割单元,其执行分割,以将所述移动轨迹划分为子集,并将所述移动轨迹的一部分设置为由所述子集共享的共同点; 距离计算单元,对于每个子集,计算表示一对移动轨迹之间的相似度的距离; 测距距离计算单元,将计算出的距离变换为测地距离; 近似测地距离计算单元,通过集成包括公共点的测地距离来计算桥接在子集上的近似测地距离; 以及区域提取单元,对计算出的近似测距距离进行聚类。