Automatic stitching and regulating algorithm for wide-angle images based on speed-up robust feature
WANG Tie-jian1,2*,LIU Yan-li3
1.Department of Information Engineering,Zhengzhou Chenggong University of Finance and Economics,Gongyi Henan 451200,China;
2.Computer School,Wuhan University,Wuhan Hubei 430072,China;
3.College of Information Science and Engineering,Henan University of Technology,Zhengzhou Henan 450000,China
Abstract：Wide-angle images are very helpful when stitching panoramas. However, the severe deform in wide-angle images usually results in stitching failure. Focusing on such a problem, an automatic stitching and regulating algorithm for wide-angle images was proposed. The matching pairs of feature points were calculated to obtain the stitching matrix at first in order to stitch wide-angle images. Then the correcting matrix for the image was calculated based on the rotating angle of the lens so that a regulation could be made on the perspective distortion. It is shown from experiments that the perspective distortion can be effectively removed from the panoramic view obtained with the presented algorithm.
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