Tittle J S, Braunstein M L
Ohio State University, Columbus.
Percept Psychophys. 1993 Aug;54(2):157-69. doi: 10.3758/bf03211751.
Four experiments were conducted to examine the integration of depth information from binocular stereopsis and structure from motion (SFM), using stereograms simulating transparent cylindrical objects. We found that the judged depth increased when either rotational or translational motion was added to a display, but the increase was greater for rotating (SFM) displays. Judged depth decreased as texture element density increased for static and translating stereo displays, but it stayed relatively constant for rotating displays. This result indicates that SFM may facilitate stereo processing by helping to resolve the stereo correspondence problem. Overall, the results from these experiments provide evidence for a cooperative relationship between SFM and binocular disparity in the recovery of 3-D relationships from 2-D images. These findings indicate that the processing of depth information from SFM and binocular disparity is not strictly modular, and thus theories of combining visual information that assume strong modularity or independence cannot accurately characterize all instances of depth perception from multiple sources.
我们进行了四项实验，使用模拟透明圆柱体物体的立体图来检验来自双眼视差的深度信息与运动结构（SFM）的整合情况。我们发现，当向显示器添加旋转或平移运动时，判断出的深度会增加，但旋转（SFM）显示器的深度增加幅度更大。对于静态和平移立体显示器，随着纹理元素密度的增加，判断出的深度会降低，但对于旋转显示器，深度保持相对恒定。这一结果表明，SFM可能通过帮助解决立体对应问题来促进立体处理。总体而言，这些实验的结果为SFM与双眼视差在从二维图像中恢复三维关系方面的合作关系提供了证据。这些发现表明，来自SFM和双眼视差的深度信息处理并非严格模块化，因此假设强模块化或独立性的视觉信息组合理论无法准确描述来自多个来源的深度感知的所有情况。
