![]() ![]() The squared outputs are summed across the two halves of the quadrature pair. Responses are summed across the two eyes for corresponding filters, then squared. Outline of a first order binocular energy model (orange pathway): Odd and even symmetric monocular receptive fields (white areas represent excitatory regions of the receptive fields and dark areas inhibitory regions) are combined to compute the first order binocular energy response. This broad distribution of binocular processing reflects the importance of three-dimensional information for both action and perception, and demonstrates the complexity of extracting depth from binocular signals.įig 2. At higher levels of visual processing, binocular responses are found in both the dorsal and ventral streams. ![]() ĭisparity-tuned neurons in the primary visual cortex form the early stages of a broadly distributed network of binocular processing. Point 1 will appear closer and 3 further away. This uncrossed disparity arises as this point is further away than the fixation point. Conversely, there is a rightward shift of point 3 from the left to the right eye’s image. This crossed disparity arises as this point in the image is closer than the fixation point. ![]() For point 1, there is a small shift leftwards in the right eye’s image in comparison to point 1 in the left eye’s image. The point of fixation falls on the same retinal location and has zero disparity. Each eye, the left (top) and right (bottom), receives a different image depending on fixation (point 2). ![]()
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