04-03-2021 дата публикации
Номер: US20210065379A1
Принадлежит:
An optical flow accelerator (OFA) which provides hardware-based acceleration of optical flow and stereo disparity determination is described. A system is described which includes an OFA configured to determine a first optical flow using a first disparity search technique, and to determine a second optical flow using a second disparity search technique that is different from the first disparity search technique. The system also includes a processor configured to combine the first optical flow and the second optical flow to generate a third optical flow. In some implementations, the first and second disparity search techniques are based upon Semi-Global Matching (SGM). In some implementations, the OFA is further configurable to determine stereo disparity. 1. A system , comprising: determine a first optical flow associated with input images, the first optical flow being determined using a first disparity search technique; and', 'determine a second optical flow associated with the input images, the second optical flow being determined using a second disparity search technique that is different from the first disparity search technique; and, 'optical flow acceleration circuitry configured toat least one processor configured to combine the first optical flow and the second optical flow to generate a third optical flow associated with the input images.2. The system according to claim 1 , wherein the first disparity search technique is dependent on camera position information claim 1 , and the second disparity search technique is independent of camera position information.3. The system according to claim 1 , wherein the first disparity search technique includes searching along epipolar lines in respective input images claim 1 , and the second disparity search technique includes searching in a rectangular area in respective input images.4. The system according to claim 3 , wherein the optical flow circuitry is further configured to determine the first optical flow and the ...
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