Patent ID: 8379734

Claim:
A method of determining if a digital video frame represents a scene-change in a digital video stream, said method comprising: determining if said digital video frame is an intra-frame, and applying using a first equation comprising a similarity metric to determine if a scene-change occurred if said digital video frame is an intra-frame; applying a second equation comprising an intra-macroblock ratio term and a frame bit size term to determine if a scene-change occurred if said digital video frame is not an intra-frame, said intra-macroblock ratio term comparing a number of intra-macroblocks for said digital video frame to a total number of macroblocks for said digital video frame, said frame bit size term based on a quantization parameter and a number of bits for said digital video frame, said number of bits for said digital video frame based on a number of bits received for said digital video frame, a number of packets lost, and an average packet size.