CAJ | 학술논문

应用非量测数码相机进行近景摄影测量时需获取控制点对应的像方坐标。本文设计了适于直线检测的控制点目标图形，使用二值图像的膨胀算法，基于最小二乘法直线拟合进行控制点像方坐标自动提取。实验结果表明，该算法获取的坐标精度较高，相对简便快捷，可用于文物建档、城市建筑物建模等工作。
응용비량측수마상궤진행근경섭영측량시수획취공제점대응적상방좌표。본문설계료괄우직선검측적공제점목표도형，사용이치도상적팽창산법，기우최소이승법직선의합진행공제점상방좌표자동제취。실험결과표명，해산법획취적좌표정도교고，상대간편쾌첩，가용우문물건당、성시건축물건모등공작。
When engaging non-metric digital camera in surveying,we need lots of coordination of control points, no matter using which method. The article desiged a new shape of control points which is more suitable for line extraction and uses dilation operation of binary images. Then,we took the direct linear transformation as an example to calculate the inner element engaging the coordinates. The results showed that the methods are relative content and precise,and can be used in documentations of cultural relics and modeling constructions.