| 摘要 |
A motion picture code evaluator evaluates a transmitted motion picture based on losses caused by a transmission means. The evaluator includes means for testing the frame header of the motion picture code and determining the presence/absence of an error in the frame header to calculate the frame loss ratio per predetermined time. The evaluator further includes means for extracting a motion picture coding parameter contained in the frame header and detecting a variation in the motion picture coding parameter in the predetermined time, and means for summing the motion picture coding parameter and the motion picture coding parameter weighted by the variation in a motion picture coding parameter in the predetermined time to calculate an ideal motion picture information amount in a predetermined time. The 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.
|
