title: Integrating multiple cues to depth order at object boundaries.
abstract: We examined the interaction between motion and stereo cues to depth order along object boundaries. Relative depth was conveyed by a change in the speed of image motion across a boundary (motion parallax), the disappearance of features on a surface moving behind an occluding object (motion occlusion), or a difference in the stereo disparity of adjacent surfaces. We compared the perceived depth orders for different combinations of cues, incorporating conditions with conflicting depth orders and conditions with varying reliability of the individual cues. We observed large differences in performance between subjects, ranging from those whose depth order judgments were driven largely by the stereo disparity cues to those whose judgments were dominated by motion occlusion. The relative strength of these cues influenced individual subjects' behavior in conditions of cue conflict and reduced reliability.
authors: Department of Computer Science, Wellesley College, 106 Central Street, Wellesley, MA 02481, USA. ehildreth@wellesley.edu
authors: Ellen C
authors: EC
authors: Hildreth
authors: Constance S
authors: CS
authors: Royden
mesh_terms: D003220:Conflict, Psychological; D003463:Cues; D003867:Depth Perception; D004193:Discrimination Learning; D006801:Humans; D007600:Judgment; D009039:Motion Perception; D009949:Orientation; D010364:Pattern Recognition, Visual; D011601:Psychophysics; D015203:Reproducibility of Results; D015357:Vision Disparity