| 摘要 |
A motion compensating apparatus comprising an encoding circuit for compressing and transmitting a video signal of a DFD frame which is a difference between a video signal of a present frame and a motion compensated video signal, a motion compensating circuit for restoring a quantized video signal from the encoding circuit, estimating a motion of the video signal of the present frame in the unit of block on the basis of the restored video signal to obtain a motion vector based on the estimated motion and compensating for a video signal of a reference frame on the basis of the obtained motion vector, a DF scaling factor generating circuit for varying a DF scaling factor properly about 1 when the DF scaling factor is varied according to an output state of the encoding circuit, and a multiplying circuit for multiplying the motion compensated video signal from the motion compensating circuit by the DF scaling factor from the DF scaling factor generating circuit. According to the invention, the original video signal can be restored even in the case where the data is subjected to a loss due to a channel error or a channel change. <IMAGE> |
