METHOD AND APPARATUS FOR DETECTING ABNORMAL BEHAVIOR

摘要

According to a preferred embodiment of the present invention, an apparatus for detecting an abnormal movement includes a feature tracing unit which extracts features of a moving object in an input image, traces a variation in position of the extracted features according to time, and ascertains trajectories of the extracted features; a topic online learning unit which classifies the input image in units of documents which are bundles of the trajectories, and ascertains probability distribution states of topics which constitute the classified documents; and a movement pattern online learning unit which learns a movement pattern by inferring a spatiotemporal correlation between the ascertained topics.