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Automatic Rectification of the Hybrid Stereo Vision System
Chengtao Cai1, Bing Fan2, Xin Liang3
1Department of Automation, 4139, Building No. 61, Harbin Engineering University, Nan Tong No. 145, Harbin 150001, China. caichengtao@hrbeu.edu.cn.
Abstract:
By combining the advantages of 360-degree field of view cameras and the high resolution of conventional cameras, the hybrid stereo vision system could be widely used in surveillance. As the relative position of the two cameras is not constant over time, its automatic rectification is highly desirable when adopting a hybrid stereo vision system for practical use. In this work, we provide a method for rectifying the dynamic hybrid stereo vision system automatically. A perspective projection model is proposed to reduce the computation complexity of the hybrid stereoscopic 3D reconstruction. The rectification transformation is calculated by solving a nonlinear constrained optimization problem for a given set of corresponding point pairs. The experimental results demonstrate the accuracy and effectiveness of the proposed method.
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