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数字影像中角点与直线的高精度定位算子
引用本文:张剑清,张祖勋.数字影像中角点与直线的高精度定位算子[J].测绘学报,1994,23(2):98-106.
作者姓名:张剑清  张祖勋
作者单位:武汉测绘科技大学!430070
摘    要:本文在分析现有数定影像定位算子的基础上,提出了精确定位数字影像中角点与直线的高精度定位算子。这种算子通过精确定组成角点的两条直线,从而精确定位角点。实验表明,新的定位算子有很高的定位精度,在理想情况下,新定位算子的精度可达0.02像素,最后,客种算子被用于数字影像的相对定向,取得了令人满意的结果。

关 键 词:数字影像  定位  精度  角点  直线

HIGH-PRECISION LOCATION OPERATOR OF STRAIGHTLINE AND CORNER POINT ON DIGITAL IMAGES
Zhang Jianqing,Zhang Zuxun,Wang Zhihong.HIGH-PRECISION LOCATION OPERATOR OF STRAIGHTLINE AND CORNER POINT ON DIGITAL IMAGES[J].Acta Geodaetica et Cartographica Sinica,1994,23(2):98-106.
Authors:Zhang Jianqing  Zhang Zuxun  Wang Zhihong
Abstract:: Based on the analyses of some famous location operators, a new high-preci-sion location operator for straight line and corner point on digital images has bedn proposed. It locates the corner point precisely through accurate positioning its two edges. The results of experiments show that the accuracy of corner point location is about 0.02 pixels in the ideal conditions. At last, the new operator is applied in the relative orientation of digital image pairs and the results are very satisfactory.
Keywords::Digital images  Location  High-precision  Linear diffusionfunction  
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