Ben-Av M B, Shiffrar M
Department of Neurobiology, Brain Research, Weizmann Institute of Science, Rehovot, Israel.
Vision Res. 1995 Oct;35(20):2889-95. doi: 10.1016/0042-6989(95)00048-5.
A translating homogeneous edge viewed through an aperture is an ambiguous stimulus, while a translating edge discontinuity is unambiguous. Under what conditions does the visual system use unambiguous velocity estimates to interpret ambiguous velocity estimates? We considered a translating rectangle visible through a set of stationary apertures. One aperture displayed a rectangle edge while the other apertures displayed corners. Observers reported the direction in which the edge appeared to translate. The results suggest that collinearity and terminator proximity determine whether the unambiguous corner velocity was used to interpret the ambiguous edge velocity. These results suggest some of the ways in which the visual system controls the integration of velocity estimates across image space.
通过一个孔径观察到的平移均匀边缘是一种模糊刺激，而平移边缘不连续则是明确的。视觉系统在什么条件下会使用明确的速度估计来解释模糊的速度估计？我们考虑了一个通过一组固定孔径可见的平移矩形。一个孔径显示矩形边缘，而其他孔径显示角点。观察者报告边缘似乎平移的方向。结果表明，共线性和终止符接近度决定了是否使用明确的角点速度来解释模糊的边缘速度。这些结果表明了视觉系统控制跨图像空间速度估计整合的一些方式。
