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摘要
Image rectification is an important stage of applying a pair of projective transformations, or homographies, to a pair of stereo images, so that epipolar lines in the original images map to horizontally aligned lines in the rectified images. Considering that for some stereo rigs the intrinsic parameters of the cameras are known but their external parameters are unknown, in this paper, we present a novel method for stereo rectification based on the essential matrix which is derived from the fundamental matrix. Without any optimization process, closed-form analytical solutions of the projective transformations for epipolar rectification can be directly obtained by conducting SVD on the essential matrix. Experimental results show the proposed rectification method not only has higher efficiency and rectification precision, but also its scale invariance and robustness are superior to existing methods.
- 出版日期2018-6
- 单位湖北汽车工业学院; 泰山学院; 西安理工大学
