Fast Rotation Center Identification Methods for Video Sequences

Rotational motion can often be seen in video. However, comparatively little research has been done to investigate rotational motions in video, whose analysis could be useful. For example, if we can efficiently identify the rotation center of a spinning object, extraction and tracking of it can be made easier by grouping points moving at the same radial speed. It could also improve compression by synthesizing analyzed spin transitions, and help tracking of rotating objects. In this paper, we introduce a set of rotation center location methods using only the motion field constructed during video encoding, along with a few methods for improving their performances. These methods can be implemented using integer operations only. They are up

• Type: Conference
• Year: 2005
• Where: ICMCS
• Authors: Ka Yan Wong, Chi Lap Yip
• Keywords: ICMCS 2005, Rotation Center, Rotation Center Location, Rotational Motions