Title :
A robust and accurate self-calibration approach from unordered wide-baseline images
Author :
Wan, Yanli ; Miao, Zhenjiang ; Hu, Mingxing ; Chen, Jing ; Tang, Zhen
Author_Institution :
Inst. of Inf. Sci., Beijing Jiaotong Univ., Beijing, China
Abstract :
This paper presents a robust and accurate self-calibration approach from unordered wide-baseline images. An optimization model based on affine transformation is introduced into propagation to acquire higher accuracy of quasi-dense correspondences. Our self-calibration algorithm is completed through two-layer iteration. In the inner layer, global objective function and local photometric consistency is used to iteratively optimize camera parameters and scene structure. In the outer layer, a resampling strategy is presented to iteratively select a group of quasi-dense correspondences to solve the camera parameters and scene structure. We demonstrate our algorithm with several high accurate calibration results.
Keywords :
affine transforms; cameras; image reconstruction; affine transformation; camera parameter; global objective function; high accurate calibration; local photometric consistency; quasi dense correspondences; resampling strategy; scene structure; self calibration approach; two layer iteration; unordered wide baseline image; Accuracy; Calibration; Cameras; Image reconstruction; Optimization; Robustness; Three dimensional displays; Camera self-calibration; quasi-dense correspondences; structure from motion;
Conference_Titel :
Image Processing (ICIP), 2010 17th IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-7992-4
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2010.5651874