Space-time invariants and recognition of motions from arbitrary viewpoints
Space-time invariants and recognition of motions from arbitrary viewpoints
复制标题
时空不变量和任意视点的运动识别
DOI：
10.1002/scj.10147
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
J. Sato
中科院分区：
文献类型：
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作者：
J. Sato
运动的识别对于理解动态动作和从视频序列中提取事件是非常重要的。在本文中，我们提出了对象运动的不变量，它可以从图像序列中提取，并且是不变的，即使从任意视点的运动。我们称它们为时空不变量，因为它们是在时空投影下定义的。我们表明，这些不变量是非常有用的视频序列中提取特定的运动。所提出的时空不变量实现和测试真实的图像序列。© 2002 Wiley Periodicals，Inc. Syst Comp Jpn，33（12）：38-46，2002;在线发表于Wiley InterScience（www.interscience.wiley.com）。DOI 10.1002/scj.10147
The recognition of motions is very important for understanding dynamic actions and extracting events from video sequences. In this paper, we propose invariants on object motions, which can be extracted from image sequences, and are invariant even if the motions are viewed from arbitrary viewpoints. We call them space-time invariants since they are defined under space-time projections. We show that these invariants are very useful for extracting specific motions from video sequences. The proposed space-time invariants are implemented and tested on real image sequences. © 2002 Wiley Periodicals, Inc. Syst Comp Jpn, 33(12): 38–46, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/scj.10147