| 灭点误差分布的理论精度评定 |
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| 引用本文： | 李畅,张祖勋,张永军.灭点误差分布的理论精度评定[J].测绘学报,2011,40(3):393-396. |
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| 作者姓名： | 李畅 张祖勋 张永军 |
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| 作者单位： | 1. 华中师范大学;2. 武汉大学遥感信息工程学院;3. 武汉大学; |
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| 基金项目： | 国家自然科学基金(41071233;40671157); 湖北省自然科学基金(2010CDZ005); 华中师范大学中央高校基本科研项目(CCNU10A01001) |
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| 摘 要： | 长久以来灭点的研究都集中在自动检测和相机检校方面,然而对其本身的误差分布研究并不多.针对直线交会灭点时存在的闭合差问题和灭点的误差分布问题,进行深入探讨.构建单像灭点平差解算的初始选权方案,并提出基于选权迭代法、协因数矩阵和误差椭圆理论来解算和估计灭点误差分布的方法.通过实验揭示灭点误差分布规律.
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| 关 键 词： | 灭点 误差分布 误差椭圆 精度 |
| 收稿时间： | 2010-12-20 |
| 修稿时间： | 2011-03-30 |
Evaluating the Theoretical Accuracy of Error Distribution of Vanishing Points |
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| LI Chang,ZHANG Zuxun,ZHANG Yongjun.Evaluating the Theoretical Accuracy of Error Distribution of Vanishing Points[J].Acta Geodaetica et Cartographica Sinica,2011,40(3):393-396. |
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| Authors: | LI Chang ZHANG Zuxun ZHANG Yongjun |
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| Institution: | LI Chang1,ZHANG Zuxun2,ZHANG Yongjun2 1.College of Urban and Environmental Science,Huazhong Normal University,Wuhan 430079,China,2.School of Remote Sensing and Information Engineering,Wuhan University |
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| Abstract: | The related researches of vanishing point have been focusing on its automatic detection and camera calibration for a long time,however there were few researches on its error distribution.Aiming at the closing error issue of lines intersection and the error distribution of vanishing points,we have made in-depth discussions.How to set initial weights for the adjustment solution of single image vanishing points is presented.Furthermore,we propose solving and estimating error distribution of vanishing points ba... |
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| Keywords: | vanishing point error distribution error ellipse accuracy |
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