CAS PS 222 Lecture Notes - Lecture 12: Binocular Disparity, Horopter, Retina

• School: Boston University
• Department: Psychological & Brain Sciences
• Course: CAS PS 222
• Professor: Andrea Mercurio

Document Summary

There are multiple cues that we can get with just one eye, but this does not give us the best calculation of where things are in space, it only gives us approximate information. The fact that we have two eyes at a particular distance in our heads gives us better information about where things are in space. We have two eyes = two offset copies of the visual scene. We have two different images on our two retinae. Retinal disparity: the relative positions of two images on the two retinae. We can use retinal disparity to compute depth. First, let"s establish how points in a scene fall on the two retinae. We have two 2d images, taken from different angles, and from this we have to contract the 3d world. When we xate on an image, the image falls on the fovea of each retinae (left and right).