By the punctual atomic STM32F407 core board, at the same time, drive two cameras, each camera resolution is 320 * 240 will do the trick, but the frame rate requires to each camera at least 60 frames per second, can be a greyscale image, if it is gray, so to 8-bit grayscale depth, can use accurate atomic core board with the camera interface, but the frame rate required to do, every time to obtain an image, need to give an interrupt signal,