TY - GEN
T1 - A novel coefficient scanning scheme for directional spatial prediction-based image compression
AU - Fan, Xiaopeng
AU - Lu, Yan
AU - Gao, Wen
N1 - Publisher Copyright:
© 2003 IEEE.
PY - 2003
Y1 - 2003
N2 - Spatial prediction is a promising technique for image coding. For example, the coming AVC/H.264 standard adopts directional spatial prediction in the intra frame coding. Similar to the traditional DCT-based image coding schemes, it still scan the transform coefficients in a zigzag order, which is inefficient for coding the residual signals predicted from the different directions. To tackle this problem, a new scheme of scanning the transform coefficients by utilizing the spatial prediction information is proposed in this paper. The distribution of transform coefficients from each direction of spatial predictions is fully studied. According to the statistics, the adaptive scan table is derived for each type of spatial predictions, which is indicated by the prediction mode. Experimental results demonstrate that the proposed scheme can always outperform the JVT codec using zigzag scanning. Moreover, it does not introduce any extra computing costs in software implementation.
AB - Spatial prediction is a promising technique for image coding. For example, the coming AVC/H.264 standard adopts directional spatial prediction in the intra frame coding. Similar to the traditional DCT-based image coding schemes, it still scan the transform coefficients in a zigzag order, which is inefficient for coding the residual signals predicted from the different directions. To tackle this problem, a new scheme of scanning the transform coefficients by utilizing the spatial prediction information is proposed in this paper. The distribution of transform coefficients from each direction of spatial predictions is fully studied. According to the statistics, the adaptive scan table is derived for each type of spatial predictions, which is indicated by the prediction mode. Experimental results demonstrate that the proposed scheme can always outperform the JVT codec using zigzag scanning. Moreover, it does not introduce any extra computing costs in software implementation.
UR - https://www.scopus.com/pages/publications/77956026670
U2 - 10.1109/ICME.2003.1221677
DO - 10.1109/ICME.2003.1221677
M3 - 会议稿件
AN - SCOPUS:77956026670
T3 - Proceedings - IEEE International Conference on Multimedia and Expo
SP - II557-II560
BT - Proceedings - 2003 International Conference on Multimedia and Expo, ICME
PB - IEEE Computer Society
T2 - 2003 International Conference on Multimedia and Expo, ICME 2003
Y2 - 6 July 2003 through 9 July 2003
ER -