A new depth measuring method for stereo camera based on converted relative extrinsic parameters

Xiaowei Song; Lei Yang; Yuanzhao Wu; Zhong Liu

doi:10.1117/12.2034809

21 August 2013 A new depth measuring method for stereo camera based on converted relative extrinsic parameters

Xiaowei Song, Lei Yang, Yuanzhao Wu, Zhong Liu

Proceedings Volume 8908, International Symposium on Photoelectronic Detection and Imaging 2013: Imaging Sensors and Applications; 890826 (2013) https://doi.org/10.1117/12.2034809
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

This paper presents a new depth measuring method for the dual-view stereo camera based on the converted relative extrinsic parameters. The relative extrinsic parameters between left and right cameras, which obtained by the stereo camera calibration, can indicate the geometric relationships among the left principle point, right principle point and convergent point. Furthermore, the geometry which consists of the corresponding points and the object can be obtained by making conversion between the corresponding points and principle points. Therefore, the depth of the object can be calculated based on the obtained geometry. The correctness of the proposed method has been proved in 3ds Max, and the validity of the method has been verified on the binocular stereo system of flea2 cameras. We compared our experimental results with the popular RGB-D camera (e.g. Kinect). The comparison results show that our method is reliable and efficient, without epipolar rectification.

Citation Download Citation

Xiaowei Song, Lei Yang, Yuanzhao Wu, and Zhong Liu "A new depth measuring method for stereo camera based on converted relative extrinsic parameters", Proc. SPIE 8908, International Symposium on Photoelectronic Detection and Imaging 2013: Imaging Sensors and Applications, 890826 (21 August 2013); https://doi.org/10.1117/12.2034809

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