CAJ | 학술논문

讨论了激光瞄靶训练系统中鱼眼图像的校正问题.根据胸环靶图像各环宽度相等的特性，使用最小二乘法拟合图像上各点到镜头光心的距离和无畸变距离之间的映射关系，实现了靶心与光心重合情况下鱼眼图像的校正和成绩判定方法.在靶心与光心非重合情况下，通过连接靶心与光心所在的直线，求出该直线与各环交点到光心的距离和无畸变距离，拟合新的映射关系.实验结果表明，校正后判定射击成绩精度达到0.1环.
토론료격광묘파훈련계통중어안도상적교정문제.근거흉배파도상각배관도상등적특성，사용최소이승법의합도상상각점도경두광심적거리화무기변거리지간적영사관계，실현료파심여광심중합정황하어안도상적교정화성적판정방법.재파심여광심비중합정황하，통과련접파심여광심소재적직선，구출해직선여각배교점도광심적거리화무기변거리，의합신적영사관계.실험결과표명，교정후판정사격성적정도체도0.1배.
A fisheye image correction method for laser target shooting training system is discussed in the paper. Because each ring in target image has the same width, the mapping relationship of the undistorted distance and the distance between optical center of lens and each point in the image is approximated by least square method. Fisheye image correction and scoring method are implemented when center of blank is located at optical center. In case of none overlapping, center of blank and optical center are connected with a straight line. The distance between optical center and intersection points of the straight line and each ring are measured, and the mapping relationship is approximated. Experimental results show that the proposed method provides satisfactory accuracy for shooting scores.