Patent ID: 9251423
Filing Date: 2016-02-02
CPC Classification: G06K,G06T,G08B,H04N

Claim Text:
1. A method in a video capturing device comprising: capturing a first plurality of video frames during a first time period; establishing a present no-event frame from the first plurality of video frames, wherein a last frame of the first plurality of video frames is marked as the present no-event frame if the difference between adjacent pair of frames of the first plurality of video frames is less than a threshold value; establishing an event frame, wherein a present frame captured after establishing the present no-event frame is marked as the event frame if the difference between the present frame and a previous frame captured prior to the present frame is greater than the threshold value; and generating event information including motion vectors, wherein the motion vectors represent displacement of a plurality of objects moving within a moving object, wherein the motion vectors are generated by linearly combining position of an object of the plurality of objects captured in adjacent event frames; labeling the moving object; pairing the moving object in the event frame with a moving object in the previous frame; resizing a boundary of the moving object in the event frame to match a boundary of the moving object in the previous frame; and computing the co-ordinates of the center of gravity of the boundary of the moving object in the event frame and the previous frame.