Light field automatic focusing data set manufacturing method and system based on Blender synthesis

The invention discloses a light field automatic focusing data set manufacturing method and system based on Blender rendering synthesis. The method comprises the following steps: importing a scene model into Blender rendering software; constructing a virtual camera array in Blender rendering software, and generating a light field sub-aperture image of the scene model according to each camera; according to the internal and external parameters of the cameras and the scene depth information corresponding to each camera, determining a parallax relation of scene pixel by pixel; uniformly dividing a focus stack space to determine a depth vector, determining a parallax vector according to the depth vector and a parallax relation, and performing light field refocusing calculation according to the parallax vector and the light field sub-aperture image to obtain focus stack data; the sizes of the focus stack data are unified and labeled, the obtained focusing data set has an accurate depth corresponding to each pixel, c