US Patent 10037606 Video analysis apparatus, monitoring system, and video analysis method

A video analysis apparatus includes: an identification unit that identifies whether each divided group includes a difference frame with a data size of a predetermined threshold value or more, the group being configured from video data which is encoded video data received from an imaging device captured a monitored base and is divided in units of groups each including a plurality of frames in a chronological order; a decoding unit that performs a decoding process on the plurality of frames of the group identified by the identification unit to include the difference frame with the data size of the predetermined threshold value or more; and a detection unit that performs image analysis on the decoded each frame to detect a moving object.