CAJ | 학술논문

以远心镜头放大率、远心度及镜头畸变作为标定参数,提出一种新型远心镜头标定方法.该方法通过控制旋转和平移 2 个外部参数矩阵,利用已知的外部参数对内部参数进行标定,而不再同时标定外部参数.通过一维高精度移动平台精确控制标定板到镜头的物距,获得一系列有序图像,从而获得可控的高精度外部参数.实验表明:该方法可解决目前远心镜头难以标定或标定参数不全、精确度差等问题,且标定模型简单、快捷,具有较高的实用性.
이원심경두방대솔、원심도급경두기변작위표정삼수,제출일충신형원심경두표정방법.해방법통과공제선전화평이 2 개외부삼수구진,이용이지적외부삼수대내부삼수진행표정,이불재동시표정외부삼수.통과일유고정도이동평태정학공제표정판도경두적물거,획득일계렬유서도상,종이획득가공적고정도외부삼수.실험표명:해방법가해결목전원심경두난이표정혹표정삼수불전、정학도차등문제,차표정모형간단、쾌첩,구유교고적실용성.
A new telecentric lens calibration method was proposed by using the magnification and distortion degree of tele-centric lens as calibration parameters. This calibration method uses the known external parameters to calibrate the internal reference,rather than calibrate external parameters at the same time by controlling the rotation of the two external reference translation matrix. A series of ordered images were obtained by controlling the distance between the calibration plate and the lens with dimensional precision mobile platform,which can help obtain high accuracy external controllable parameters. Ex-perimental results show that this new method can overcome the difficulties in current telecentric lens calibration,such as calibration parameters insufficiency or poor accuracy.The new calibration model is simple and works fast with a great prac-tical value.