CAJ | 학술논문

　　为了获取空间三维点与图像二维像点之间的对应关系，摄像机标定必不可少。标定的实质是求取摄像机的内外部参数，确定物点的准确位置，而求解单应性矩阵是求解参数的前提和基础。利用最小二乘法来求解单应性矩阵，既提高单应性矩阵的精度，又为摄像机内外参数和畸变系数的精确测量提供理论依据。在此基础上借助OpenCV函数库获取图形中角点高精度坐标的功能，在Visual C++环境下实现对摄像机的标定。数值实验和实际标定实验均表明，提出的标定方法具有更高的精度和抗噪声能力。
　　위료획취공간삼유점여도상이유상점지간적대응관계，섭상궤표정필불가소。표정적실질시구취섭상궤적내외부삼수，학정물점적준학위치，이구해단응성구진시구해삼수적전제화기출。이용최소이승법래구해단응성구진，기제고단응성구진적정도，우위섭상궤내외삼수화기변계수적정학측량제공이론의거。재차기출상차조OpenCV함수고획취도형중각점고정도좌표적공능，재Visual C++배경하실현대섭상궤적표정。수치실험화실제표정실험균표명，제출적표정방법구유경고적정도화항조성능력。
In order to obtain the 3D space and 2D image point correspondence, camera calibration is es-sential. Calibration is the essence of the internal and external parameters of the camera's re-quest, determine the exact location of object points, and the homography matrix is the prerequi-site and basis for solving parameters.The method can not only improve the accuracy of homog-raphy matrix, but also provide the theory basis for the accurate measurement of the camera pa-rameters and the distortion coefficient. With the help of high precision corner point coordinate obtained by OpenCV Library, the video camera can be calibrated by Visual C++. Numerical ex-periments and practical calibration experiments indicates that the calibration methods based on total least squares has more precision.