TY - GEN
T1 - Improved combined inter-intra prediction using spatial-variant weighted coefficient
AU - Cha, Run
AU - Au, Oscar C.
AU - Fan, Xiaopeng
AU - Zhang, Xingyu
AU - Li, Jiali
PY - 2011
Y1 - 2011
N2 - In current video coding standard H.264/AVC, pixel prediction is applied to reduce spatial and temporal redundancy existed in video signal. Previously, it has been shown that better coding performance is achieved compared to H.264/AVC by combining inter and intra prediction to generate a more accurate prediction. In this paper, an improved combined prediction scheme is presented which allows the video codec to tune weighted coefficient for inter prediction and intra prediction adaptively to local signal characteristics. In order to avoid additional overhead signalling, statistics of already coded neighboring block is analyzed to predict the weighted coefficients of the combined prediction for current macroblock. Compared to H.264/AVC, coding performance is increased by up to 1.9%. And compared to the latest combined prediction method using spatial-invariant weighted coefficients, simulation results show that the proposed scheme achieves additional coding gain of up to 0.66%.
AB - In current video coding standard H.264/AVC, pixel prediction is applied to reduce spatial and temporal redundancy existed in video signal. Previously, it has been shown that better coding performance is achieved compared to H.264/AVC by combining inter and intra prediction to generate a more accurate prediction. In this paper, an improved combined prediction scheme is presented which allows the video codec to tune weighted coefficient for inter prediction and intra prediction adaptively to local signal characteristics. In order to avoid additional overhead signalling, statistics of already coded neighboring block is analyzed to predict the weighted coefficients of the combined prediction for current macroblock. Compared to H.264/AVC, coding performance is increased by up to 1.9%. And compared to the latest combined prediction method using spatial-invariant weighted coefficients, simulation results show that the proposed scheme achieves additional coding gain of up to 0.66%.
KW - H.264/AVC
KW - coefficients prediction
KW - combined inter-intra prediction
KW - correlation exploitation
UR - https://www.scopus.com/pages/publications/80155131257
U2 - 10.1109/ICME.2011.6012008
DO - 10.1109/ICME.2011.6012008
M3 - 会议稿件
AN - SCOPUS:80155131257
SN - 9781612843490
T3 - Proceedings - IEEE International Conference on Multimedia and Expo
BT - Electronic Proceedings of the 2011 IEEE International Conference on Multimedia and Expo, ICME 2011
T2 - 2011 12th IEEE International Conference on Multimedia and Expo, ICME 2011
Y2 - 11 July 2011 through 15 July 2011
ER -