IMAGE ANGLE VARIATION DETECTION DEVICE, IMAGE ANGLE VARIATION DETECTION METHOD AND IMAGE ANGLE VARIATION DETECTION PROGRAM

摘要

An image angle variation detection means 81 detects an image angle variation of a imaging device from videos shot by the imaging device based on fixed point information including the position of a fixed point specified by an image angle of the imaging device and the features indicating the characteristics of the fixed point, and a situation determination means 82 determines that the image angle of the imaging device is varied when a change in the image angle variation is stable for a certain period of time.