Patent ID: 6778254
Filing Date: 2004-08-17
Classification: G03B

Abstract:
A motion picture code evaluator for evaluating, on a motion picture receiver for receiving a motion picture code via transmission means and decoding the received motion picture code, the transmitted motion picture information amount which is based on losses of a motion picture caused by said transmission means, said motion picture code evaluator comprising:means for testing a frame header of said motion picture code, the motion picture code comprising a screen size of the motion picture code, a color difference format, a frame rate and a quantization level, and determining the presence/absence of an error in the frame header to calculate the frame loss ratio per predetermined time, means for extracting motion picture coding parameter contained in said frame header and detecting a variation in said motion picture coding parameter in said predetermined time, and means for summing said motion picture coding parameter and the motion picture coding parameter weighted by said variation in the motion picture coding parameter in said predetermined time to calculate an ideal motion picture information amount in a predetermined time, wherein said motion picture code evaluator thereby obtains an actual motion picture information amount by multiplying the ideal motion picture information amount by (1-frame loss ratio).