Audio-video synchronous coding based on motion estimation in H.264
X.N. Li, H.X. Chen, Chen, Moncef Gabbouj · Journal of Jilin University · 2012
To solve the problem of audio-video synchronous coding effectively,an embedding scheme is proposed.This scheme applies the quarter-pixel motion search during the motion estimation in H.264.At the transmitter terminal,according to the mapping rule between the binary audio bits and the search points,the audio bits are embedded into the video signal by modulating the best search point in the quarter-pixel motion estimation.Then the synchronous coding is applied to the hybrid signals.At the receiver terminal,the audio information bits are extracted from the video stream according to the embedding rule.Then the audio and video signals are reconstructed respectively.Experiment results show that the proposed scheme can achieve audio-video synchronous coding with low embedding cost and good performance in quality of video and audio signals.