Patent ID: 8744125

Claim:
A method for identifying objects in video content comprising: receiving video content of a scene captured by a video camera; detecting an object in the video content; identifying a track that the object follows over a series of frames of the video content; extracting object features for the object from the video content; and classifying the object based on the object features, wherein classifying the object further comprises: determining a track-level classification for the object using spatially invariant object features including an aspect ratio and a directional aspect ratio associated with the object by constructing directional clusters associated with the aspect ratio for the object, constructing directional clusters associated with the directional aspect ratio for the object, determining the track-level classification for the object based on the directional clusters associated with the aspect ratio and the directional clusters associated with directional aspect ratio, and updating a histogram of track-level classification results for the tracked object based on the track-level classification; determining a global-clustering classification for the object using spatially variant features; and determining an object type for the object based on the track-level classification and the global-clustering classification for the object.