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 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 is generated by performing one-dimensional search on a moving object of the event frame.