Title :
A novel criterion for block matching motion estimation
Author :
Guo, Jianghong ; Xie, Tao ; Du, Cheng ; Zhang, Yuecheng ; He, Yun ; Wu, Guowei
Author_Institution :
Dept. of E.E., Tsinghua Univ., Beijing, China
Abstract :
In very-low-bit-rate coding, the amount of bits needed to encode motion vectors (MV) also takes an important portion of the coded bit stream. A novel criterion for block matching motion estimation is presented in this paper, which gives a good balance between the motion compensation and motion vector length. Compared to the widely used SAD (sum of absolute difference)/MSE (mean square error)-only criterion in block-based video coding systems, the modified SAD/MSE criterion can provide shorter coded bits in overall coding performance under constant image quality
Keywords :
image matching; mean square error methods; motion compensation; motion estimation; video coding; block matching motion estimation; coding performance; constant image quality; mean square error; modified SAD/MSE criterion; motion compensation; motion vector length; sum of absolute difference; very-low-bit-rate coding; video coding; Bit rate; Discrete cosine transforms; Entropy coding; Image coding; Image quality; Motion compensation; Motion estimation; Shape; Streaming media; Video coding;
Conference_Titel :
Signal Processing Proceedings, 1998. ICSP '98. 1998 Fourth International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4325-5
DOI :
10.1109/ICOSP.1998.770343
