OPTICAL-FLOW USING SPATIOTEMPORAL FILTERS
OPTICAL-FLOW USING SPATIOTEMPORAL FILTERS
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DOI：
10.1007/bf00133568
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发表时间：
1987-01-01
影响因子：
19.5
通讯作者：
HEEGER, DJ
中科院分区：
文献类型：
--
作者：
HEEGER, DJ
提出了一种模型，与当前的观点一致，关于运动感知的神经生理学和心理物理学，它结合了一组时空运动能量滤波器的输出来估计图像速度。并行实现计算图像速度的分布式表示。图像流的不确定性的措施制定的初步结果表明，这种不确定性的措施，可用于识别模糊由于孔径问题。该模型似乎处理孔径问题以及人类视觉系统，因为它提取了正确的速度，在不同的空间方向上有很大的差异，在对比度的一些模式。
A model is presented, consonant with current views regarding the neurophysiology and psychophysics of motion perception, that combines the outputs of a set of spatiotemporal motion-energy filters to estimate image velocity. A parallel implementation computes a distributed representation of image velocity. A measure of image-flow uncertainty is formulated; preliminary results indicate that this uncertainty measure may be used to recognize ambiguity due to the aperture problem. The model appears to deal with the aperture problem as well as the human visual system since it extracts the correct velocity for some patterns that have large differences in contrast at different spatial orientations.