da Vinci stereopsis: depth and subjective occluding contours from unpaired image points.

摘要: Distant surfaces are occluded by nearer to different extents in the two eyes, leading existence of unpaired image points visible one eye and not other. An ecological analysis real world situation that could have given rise such indicates presence a depth constraint zone, defined visibility lines between which possible must lie. The edge this zone starts at fused binocular occluding surface recedes linearly with increases horizontal distance point. Psychophysical evidence human visual system makes use information remarkably adaptive manner, showing an increase perceived for increasing separations target edge, least over significant angular range (approx. 25-40 min arc). We also show images can lead formation subjective contours having qualitatively appropriate sign depth. Furthermore, we recover camouflaged from other against silhouettes. Our findings indicate occlusive relations depth, contour, points. fact processes utilize eye-of-origin implies they share essential characteristic classical or Wheatstone stereopsis. necessity suggests processing may begin relatively early cortical processing, possibly as V1. Finally, novel emergence monocular stimuli raises possibility process is mediated experience, built up association contours.