INTEGRATION OF DEPTH MODULES - STEREOPSIS AND TEXTURE

Global shape judgements were employed to examine the combination of st ereopsis and shape-from-texture in the determination of three-dimensio nal shape. Adding textural variations to stereograms increased perceiv ed depth. Thus, texture was not simply vetoed by the strong stereo cue . In experiments where the depth specified by texture was incongruent with that specified by stereo, the data were well described by a weigh ted linear combination rule. Although only a small weight was assigned to texture, this weight was somewhat greater at a farther viewing dis tance. This could be a consequence of the decreased reliability of ste reopsis at far viewing distances.