Patent ID: 8625671

Claim:
A method of detecting at least one of a pan and a zoom in a video sequence, comprising: receiving a video sequence, the video sequence comprising a plurality of frames; determining a set of motion vectors for each frame in the plurality of the frames; determining a motion angle for each motion vector; detecting a scene cut in the plurality of the frames based on the motion vectors of the frames; selecting a set of frames from the plurality of the frames responsive to detection of the scene cut; identifying at least two largest regions in each frame, wherein a first largest region includes motion vectors having a first orientation and the second largest region includes motion vectors having a second orientation; determining percentages of each frame covered by each of the at least two largest regions; determining a statistical measure of the motion vectors for at least one of the two largest regions using a look-ahead detector; and comparing the percentages and statistical measure to threshold values to identify whether the plurality of frames includes at least one of a pan and a zoom.