Frame of video and video pictures occlusion detection method and device

The present invention relates to a kind of frame of video and video pictures occlusion detection method and device, including：Background image frame is obtained, and obtains at least one frame of video of current video picture；The background image frame is divided at least four background image frame sub-blocks, and according to the position of the background image frame sub-block, each frame of video is divided into corresponding frame of video sub-block；According to default obstruction conditions, the background image frame sub-block and the frame of video sub-block, the quantity of frame of video sub-block blocked is obtained；When the ratio of the quantity and all quantity of the frame of video sub-block of the frame of video sub-block blocked is more than default first threshold, determine that the frame of video is blocked.Frame of video according to embodiments of the present invention and video pictures occlusion detection method and device can effectively avoid occurring large-scale moving object in camera field of view, cause color histogram distribution to change, the problem of causing to produce flase drop.