SYSTEM AND METHOD FOR PROCESSING VISUAL INFORMATION FOR EVENT DETECTION
First Claim
1. A method for processing information, comprising:
- receiving visual information including at least one object in motion;
locating at least one spatial edge of the object in the visual information;
generating a plurality of spatio-temporal gradients for the at least one spatial edge over N frames, where N≧
3;
generating motion blur images from the spatio-temporal gradients;
performing a regression analysis on the motion blur images to determine direction of motion information of the object throughout the N frames;
generating scene activity vectors for the N frames based on the direction of motion information; and
detecting an event in the visual information based on the scene activity vectors generated for the N frames.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and method processes visual information including at least one object in motion. The visual information is processed by locating at least one spatial edge of the object, generating a plurality of spatio-temporal gradients for the at least one spatial edge over N frames, and then generating motion blur images from the spatio-temporal gradients. A regression analysis is performed on the motion blur images to determine direction of motion information of the object, and scene activity vectors are then generated for the N frames based on the direction of motion information. An event is detected in the visual information based on the scene activity vectors.
-
Citations
21 Claims
-
1. A method for processing information, comprising:
-
receiving visual information including at least one object in motion; locating at least one spatial edge of the object in the visual information; generating a plurality of spatio-temporal gradients for the at least one spatial edge over N frames, where N≧
3;generating motion blur images from the spatio-temporal gradients; performing a regression analysis on the motion blur images to determine direction of motion information of the object throughout the N frames; generating scene activity vectors for the N frames based on the direction of motion information; and detecting an event in the visual information based on the scene activity vectors generated for the N frames. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 21)
-
-
14. An apparatus for processing information, comprising:
-
a storage area configured to store a control program; and a controller configured to process visual information based on the control program, the controller configured to process the visual information by locating at least one spatial edge of an object in visual information; generating a plurality of spatio-temporal gradients for the at least one spatial edge over N frames, where N≧
3;generating motion blur images from the spatio-temporal gradients; performing a regression analysis to determine direction of motion information of the object throughout the N frames; generating scene activity vectors for the N frames based on the direction of motion information; and detecting an event in the visual information based on the scene activity vectors generated for the N frames. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification