Depth Representation of Moving 3-D Objects in Apparent-Motion Path
Depth Representation of Moving 3-D Objects in Apparent-Motion Path
复制标题
视运动路径中移动 3D 对象的深度表示
作者：
Souta Hidaka;Y. Kawachi;J. Gyoba
当两个物体在不同位置交替呈现时，可以感知到表观运动。表面运动物体的内部表征是在缺乏物理输入的表面运动路径中形成的。我们研究了三维运动物体在明显运动路径中的深度信息。我们研究了探针物体-在运动路径中短暂放置-如何影响表观运动的感知平滑度。探测对象包括以阴影或视差（凸/凹）或二维（平面）定义的三维对象，而运动对象为凸/凹对象。我们发现，只有在凸面运动物体的情况下，扁平探针物体比凹探针物体产生更平滑的运动感知。然而，尽管凸探测对象包含与移动对象相同的深度信息，但凸探测对象并不像平面物体那样导致更平滑的运动。此外，当运动物体为凹形时，探测物体之间的差异减小。当使用两种深度线索时，这些反直觉的结果是一致的。结果表明，内部表征包含不完整的深度信息，介于二维和三维物体之间。
Apparent motion is perceived when two objects are presented alternately at different positions. The internal representations of apparently moving objects are formed in an apparent-motion path which lacks physical inputs. We investigated the depth information contained in the representation of 3-D moving objects in an apparent-motion path. We examined how probe objects—briefly placed in the motion path—affected the perceived smoothness of apparent motion. The probe objects comprised 3-D objects which were defined by being shaded or by disparity (convex/concave) or 2-D (flat) objects, while the moving objects were convex/concave objects. We found that flat probe objects induced a significantly smoother motion perception than concave probe objects only in the case of the convex moving objects. However, convex probe objects did not lead to smoother motion as the flat objects did, although the convex probe objects contained the same depth information for the moving objects. Moreover, the difference between probe objects was reduced when the moving objects were concave. These counterintuitive results were consistent in conditions when both depth cues were used. The results suggest that internal representations contain incomplete depth information that is intermediate between that of 2-D and 3-D objects.
视运动中的对应匹配：三维空间表示的证据。
DOI：
10.1126/science.3749887
发表时间：
1986
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
Green,M;Odom,JV
通讯作者：
Odom,JV