Marshall J A, Burbeck C A, Ariely D, Rolland J P, Martin K E
Department of Computer Science, University of North Carolina, Chapel Hill 27599, USA.
J Opt Soc Am A Opt Image Sci Vis. 1996 Apr;13(4):681-8. doi: 10.1364/josaa.13.000681.
We studied whether the blur/sharpness of an occlusion boundary between a sharply focused surface and a blurred surface is used as a relative depth cue. Observers judged relative depth in pairs of images that differed only in the blurriness of the common boundary between two adjoining texture regions, one blurred and one sharply focused. Two experiments were conducted; in both, observers consistently used the blur of the boundary as a cue to relative depth. However, the strength of the cue, relative to other cues, varied across observers. The occlusion edge blur cue can resolve the near/far ambiguity inherent in depth-from-focus computations.
我们研究了在一个聚焦清晰的表面和一个模糊表面之间的遮挡边界的模糊/清晰度是否被用作一种相对深度线索。观察者判断仅在两个相邻纹理区域之间的公共边界的模糊程度上有所不同的图像对中的相对深度，其中一个区域模糊，另一个区域聚焦清晰。进行了两个实验；在这两个实验中，观察者都一致地将边界的模糊用作相对深度的线索。然而，相对于其他线索，该线索的强度在不同观察者之间有所变化。遮挡边缘模糊线索可以解决聚焦深度计算中固有的近/远模糊性。
