Title :
Fast digital image stabilization algorithm based on polar transform and circular block matching
Author :
Zhang, Hong ; Deng, Changsong ; Li, Junwei ; Yuan, Fei ; Jia, Ruiming
Author_Institution :
Image Process. Center, Beihang Univ., Beijing
Abstract :
A digital image stabilization algorithm based on polar transform and circular block matching is utilized in this paper to stabilize the videos, taken from rolling airborne platform, which have rapid rotation and arbitrary translation changes between adjacent frames. And circular block matching is used to estimate the global motion parameters, the hierarchical search strategy to reduce the amount of computation. The experimental results show that the proposed algorithm can achieve sub-pixel accuracy and the processing speed of 20 frames per second for 360times264 video sequences on a PIV-3.0 GHz CPU.
Keywords :
image matching; image sequences; motion estimation; transforms; video signal processing; circular block matching; digital image stabilization algorithm; motion parameter estimation; polar transform; rolling airborne platform; search strategy; video sequence; video stabilisation; Digital images; Image motion analysis; Image processing; Image sequence analysis; Instruments; Layout; Motion compensation; Motion estimation; Parameter estimation; Video sequences;
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
DOI :
10.1109/ICOSP.2008.4697327
