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一种低成本立体摄像机系统的标定和定量评价

Calibration and Quantitative Evaluation for a Low-Cost Stereo-Camera System

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摘要

低成本立体摄像机需要高精度的标定和定量的精度评定才能应用于三维重建。推导了同步解算摄像机间的平台参数和摄像机内部参数的自检校光束法平差模型。利用全部标定参数及其协方差矩阵,建立了基于相对定向的立体摄像机标定精度的定量评价理论模型。利用低成本网络摄像机构建立体摄像机系统,对其实施标定和精度定量评定。实验表明,同步标定立体摄像机的内部参数、平台参数可以提高标定的精度和稳健性。考虑参数相关性的定量评价模型,能够更稳健地反映立体摄像机的标定精度。

Abstract

Aiming at realizing three-dimension reconstruction, both the high-precision calibration of the low-cost stereo-camera system and the assessment of the quantitative accuracy are accomplished. The self-calibration bundle adjustment model that can calculate the platform parameters between cameras and internal parameters of camera is deduced.Based on relative orientation of the stereo-camera,atheoretical model for accuracy evaluation of ration is established by taking advantage of total calibration parameters and its covariance matrix. A stereo-camera system is established by using low-cost web camera. The calibration and accuracy evaluation of ration of the proposed system is carried out.Experimental results show that simultaneous determination of internal parameters and platform parameters of stereo-camera can improve the calibration accuracy and the stability. Quantitative evaluation model of considering parameters relativity can reflect the calibration accuracy for the stereo-camera system robustly.

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中图分类号:TP391.4

DOI:10.3788/lop53.021503

所属栏目:机器视觉

基金项目:国家自然科学基金(41371425)、辽宁省自然基金(2013010251-401,2013020048)

收稿日期:2015-08-21

修改稿日期:2015-10-27

网络出版日期:2016-01-21

作者单位    点击查看

崔红霞:渤海大学信息科学与技术学院, 辽宁 锦州 121013
王鸿雁:渤海大学信息科学与技术学院, 辽宁 锦州 121013
刘佳琪:渤海大学信息科学与技术学院, 辽宁 锦州 121013
刘畅:渤海大学信息科学与技术学院, 辽宁 锦州 121013

联系人作者:崔红霞(cuihongxia87021@163.com)

备注:崔红霞(1969—),女,博士,教授,主要从事摄影测量和计算机视觉等方面的研究。

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引用该论文

Cui Hongxia,Wang Hongyan,Liu Jiaqi,Liu Chang. Calibration and Quantitative Evaluation for a Low-Cost Stereo-Camera System[J]. Laser & Optoelectronics Progress, 2016, 53(2): 021503

崔红霞,王鸿雁,刘佳琪,刘畅. 一种低成本立体摄像机系统的标定和定量评价[J]. 激光与光电子学进展, 2016, 53(2): 021503

被引情况

【1】邬琳红,刘进博,张小虎,王刚,孙聪. 立体测量中的相机晃动影响及其修正. 激光与光电子学进展, 2016, 53(10): 101504--1

【2】马鸿钦,王晓露,范 杭,王嘉辉,周建英,周延桂. 裸眼3D显示串扰率实时检测系统设计. 激光与光电子学进展, 2017, 54(6): 61201--1

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