| 二维控制场建立中的关键技术研究 |
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| 引用本文： | 侯文广,商浩亮,冯文灏.二维控制场建立中的关键技术研究[J].测绘科学,2006,31(2):44-46. |
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| 作者姓名： | 侯文广 商浩亮 冯文灏 |
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| 作者单位： | 武汉大学遥感信息工程学院,武汉,430079;武汉大学遥感信息工程学院,武汉,430079;武汉大学遥感信息工程学院,武汉,430079 |
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| 摘 要： | 本文对控制点标志的选择进行分析,指出选择的基本原则;提出了基于像点与物方之间几何关系来识别点的方法。阐述了对目标影像的分割、定位及光束法平差解算物方点的空间坐标,并根据验后方差确定观测值的权;给出了一个二维控制场建立的实例,物方控制点的坐标中误差小于±0.2mm。
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| 关 键 词： | 控制场 摄影测量 相机检校 直线提取 标志识别 子象素 |
| 文章编号： | 1009-2307(2006)02-0044-03 |
| 收稿时间： | 2005-02-22 |
| 修稿时间： | 2005年2月22日 |
Research on key techniques for establishing 2D control network |
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| HOU Wen-guang,SHANG Hao-liang,FENG Wen-hao.Research on key techniques for establishing 2D control network[J].Science of Surveying and Mapping,2006,31(2):44-46. |
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| Authors: | HOU Wen-guang SHANG Hao-liang FENG Wen-hao |
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| Abstract: | The paper introduce the several main artificial marks of control points,and point out the main principles of selection.The way using the geometrical relation of images to identify the control points automatically and semi-automatically has been introduced.The key techniques including image division,points position and calculation of coordinates ground points using bundle adjustment have been clearly expatiated.The power of value participating in adjustment is determined according to the mean square error after adjustment.In this paper a instance has been provided,the mean square error of coordinates of check points is less than 0.2mm. |
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| Keywords: | control network photogrammetry image processing camera calibration object detection symbol identification sub-pixel |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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