| 亚像素定位的关键问题研究 |
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| 引用本文： | 王成亮,邹峥嵘,闾海庆,王静.亚像素定位的关键问题研究[J].海洋测绘,2007,27(1):70-73. |
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| 作者姓名： | 王成亮 邹峥嵘 闾海庆 王静 |
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| 作者单位： | 1. 中南大学,信息物理工程学院,湖南,长沙,410083
2. 华东理工学院,测量系,江西,抚州,344000 |
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| 摘 要： | 分析了控制点标志的选择与设计,采用了图像处理、Hough变换、角点与直线高精度定位算子等方法,实现了中南大学近景摄影测量二维控制场1 350个人工标志点的自动识别和亚像素定位,仿真图检测平均精度达到±0.05像素。
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| 关 键 词： | 图像处理 亚像素 二维控制场 高精度定位算子 |
| 文章编号： | 1671-3044（2007）01-0070-04 |
| 修稿时间： | 2006-06-20 |
Research on the Key Problems of Subpixel Location of Control Point Image in Quasi-2D Control Field |
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| WANG Cheng-liang,ZOU Zheng-rong,L Hai-qin,Wang Jing.Research on the Key Problems of Subpixel Location of Control Point Image in Quasi-2D Control Field[J].Hydrographic Surveying and Charting,2007,27(1):70-73. |
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| Authors: | WANG Cheng-liang ZOU Zheng-rong L Hai-qin Wang Jing |
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| Institution: | 1. School of Info-Physics and Geomatics Engineering, Central South University, Changsha,Hunan ,410083 ; 2. School of East China Institute of Technology, Fuzhou, Jiangxi ,344000 |
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| Abstract: | This paper analyzed the choice and the design of the control point.According to it's geometry shape of characteristic,mainly made use of image processing,edge detection,Hough Transformation,High-precision location operator etc.Succeeded to withdraw the quasi-2D control field of close range photogrammetry of Central South University of 1350 control points's subpixel location.The results of emulational image examination show that the accuracy of corner point location is about 0.05 pixels and give the solution of the decisive problem in this process. |
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| Keywords: | image processing subpixel quasi-2D control field high-precision location operator |
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