Title :
A displacement search algorithm for deformable block matching motion estimation
Author :
Wei, Wei ; Hou, Zheng-Xin ; Guo, Ying-Chun
Author_Institution :
Sch. of Electron. Inf. Eng., Tianjin Univ., China
Abstract :
A displacement search algorithm (DSA) is proposed in this paper to perform deformable block matching. A sub-pixel accuracy prediction and two-mode hybrid method is further proposed. The results show that DSA has about 2 dB better than full search. DSA gets better subjective and objective quality with reduced computation than gradient-based search algorithm, and much easier to implement with VLSI.
Keywords :
gradient methods; image matching; image resolution; motion estimation; query formulation; deformable block matching motion estimation; displacement search algorithm; gradient-based search algorithm; sub-pixel accuracy prediction; two-mode hybrid method; Accuracy; Arithmetic; Deformable models; Displacement control; Hardware; Mean square error methods; Motion estimation; Newton method; Very large scale integration; Video coding;
Conference_Titel :
Communications and Information Technology, 2005. ISCIT 2005. IEEE International Symposium on
Print_ISBN :
0-7803-9538-7
DOI :
10.1109/ISCIT.2005.1566892
