Seoul National University

Hanwha Techwin Co., Ltd.

Ha Wook Jeong

Jin Young Choi

Jeong Eun Lim

Dong Jun Park

Young Joon Yoo

Kwang Moo Yi

Provided are a method and apparatus for detecting an abnormal movement. The apparatus includes a feature tracing unit configured to extract features of a moving object in an input image, trace a variation in position of the extracted features according to time, and ascertain trajectories of the extracted features; a topic online learning unit configured to classify the input image in units of documents which are bundles of the trajectories, and ascertain probability distribution states of topics, which constitute the classified document, by using an online learning method which is a probabilistic topic model; and a movement pattern online learning unit configured to learn a velocity and a direction for each of the ascertained topics, and learn a movement pattern by inferring a spatiotemporal correlation between the ascertained topics.

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Changwon, South Korea

Ha Wook Jeong