Depth information of the scene is the key to the three-dimensional (3D) reconstruction. Traditional depth measurement methods are based on stereo vision or defocusing image measurement, which have bad real-time performance, high computational complexity and cost much. Optical field is a new technology that can record the 3D information without the focusing process. Using optical field refocusing can rebuild scene at any depth through a single image, as for complex scene using window scanning to get depth information of different position. When set the size of window to 1 pixel can get the dept...
