Unusual Activity Localization

In the realm of real-world events and human behavior analysis, unusual activities are defined as behaviors, patterns, or events that deviate from expected norms or regular occurrences. This concept encompassestwo primary aspects: first, outcomes that contradict conventional expectations, exemplified by unintentional and humorous activities second, rare or infrequent occurrences, such as behaviors related to autism spectrum disorder (ASD), sudden road accidents, natural disasters, extreme weather , unusual public demonstrations like riot, observation of rare endangered species in urban environments, space events like unexpected meteor dropping etc.

An unusual activity localization model takes a video-query pair as input, where the video is a sequence of frames and the query consists of a sequence of words that describes the unusual activity.