中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 自动化研究所
  3. 中国科学院自动化研究所
  4. 中科院工业视觉智能装备工程实验室
  5. 精密感知与控制
A Calibration and 3-D Measurement Method for an Active Vision System With Symmetric Yawing Cameras

文献类型：期刊论文

作者Xu, De1,2; Zhang, Di1,2; Liu, Xilong1,2; Ma, Liping1,2
刊名IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
出版日期2021
卷号70页码:13
关键词3-D measurement active vision calibration stereo vision symmetric yawing system
ISSN号0018-9456
DOI10.1109/TIM.2021.3092517
通讯作者Xu, De(de.xu@ia.ac.cn)
英文摘要In this study, we propose a 3-D measurement method for an active stereo vision system with two symmetric yawing cameras. First, we establish a measurement model with five constant systematic parameters and five variables. Second, we present a design for a relatively simple and convenient calibration method to determine the constant systematic parameters for the active vision system. In our proposed method, the initial yaw angles of two cameras are calibrated with a minimum of three equal interval points in a common field of view (FOV). The initial pitch angles are calibrated with at least one point in this common FOV. The initial yaw angles are used in the following calibration processes of the baseline length and the optical offset. The baseline length is calibrated with respect to two such points with known horizontal distance. An offset used to compensate for the difference between the actual optical centers of the two cameras along their optical axes is also computed with at least one feature point with the cameras yawed at different angles. Third, an associated measurement method for objects in the common FOV is presented. The proposed method computes 3-D positions of feature points in the common FOV using these five constant systematic parameters and five variables. This active stereo vision system design does not require repeated calibration for varying yaw of the two cameras to conduct measurements once the five constant systematic parameters have been calibrated offline. We conduct comparative experiments, and the results verify the effectiveness of the proposed method.
WOS关键词STEREO VISION
资助项目Science and Technology Program of Beijing Municipal Science and Technology Commission[Z191100008019004] ; National Natural Science Foundation of China[61873266]
WOS研究方向Engineering ; Instruments & Instrumentation
语种英语
WOS记录号WOS:000688335300009
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
资助机构Science and Technology Program of Beijing Municipal Science and Technology Commission ; National Natural Science Foundation of China
源URL[http://ir.ia.ac.cn/handle/173211/45893]  
专题精密感知与控制研究中心_精密感知与控制
通讯作者Xu, De
作者单位1.Chinese Acad Sci, Res Ctr Precis Sensing & Control, Inst Automat, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Artificial Intelligence, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Xu, De,Zhang, Di,Liu, Xilong,et al. A Calibration and 3-D Measurement Method for an Active Vision System With Symmetric Yawing Cameras[J]. IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,2021,70:13.
APA Xu, De,Zhang, Di,Liu, Xilong,&Ma, Liping.(2021).A Calibration and 3-D Measurement Method for an Active Vision System With Symmetric Yawing Cameras.IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT,70,13.
MLA Xu, De,et al."A Calibration and 3-D Measurement Method for an Active Vision System With Symmetric Yawing Cameras".IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT 70(2021):13.

入库方式： OAI收割

来源：自动化研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。