| 摘要 |
Methods of using motion-texture analysis to perform video analytics are disclosed. One method includes selecting a plurality of frames from a video sequence, analyzing motion textures in the plurality of frames to identify a flow, extracting features from the flow, and characterizing the extracted features to perform activity recognition. Another method includes selecting a plurality of frames from a video sequence, analyzing motion textures in the plurality of frames to identify a flow, extracting first features from the flow, comparing the first features with second features extracted during a previous training phase, and based on the comparison, determining whether the first features indicate abnormal activity. Another method includes partitioning a given frame in a video sequence into a plurality of patches, forming a vector model for each patch by analyzing motion textures associated with that patch, and clustering patches having vector models that show a consistent pattern. |
