| 利用已有像控点的多期航空影像光束法区域网联合平差 |
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| 引用本文： | 王建梅,朱紫阳.利用已有像控点的多期航空影像光束法区域网联合平差[J].测绘学报,2010,39(1):22-27. |
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| 作者姓名： | 王建梅 朱紫阳 |
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| 作者单位： | 同济大学测量与国土信息工程系,上海,200092;广东省国土资源厅测绘院,广东,广州,510500 |
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| 基金项目： | 国家863计划(2007AA12Z178) |
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| 摘 要： | 为了充分利用已有航空影像与控制成果,节约作业成本,缩短作业周期,提出一种利用已有像控点联合多期航空影像进行整体平差加密的数学模型,并采用我国南方某地区的数据资料进行了试验证明。结果表明,联合平差能将已有像控点的控制作用通过多期影像间的同名点传递到最新航空影像上,联合平差加密点的平面精度与常规光束法区域网平差加密精度基本一致,而高程精度则取决于多期影像间同名点的观测值个数,同名点观测值越多,加密点高程精度越高,因此只要多期影像间存在足够多的同名点观测值,则联合平差的加密精度完全能够满足摄影测量地形图测绘的生产需要。
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| 关 键 词： | 像控点 加密精度 空中三角测量 联合光束法平差 区域网平差 |
Combined Bundle Block Adjustment Based on Existing Ground Control Points and Multi-period Aerial Imagery |
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| WANG Jianmei,ZHU Ziyang.Combined Bundle Block Adjustment Based on Existing Ground Control Points and Multi-period Aerial Imagery[J].Acta Geodaetica et Cartographica Sinica,2010,39(1):22-27. |
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| Authors: | WANG Jianmei ZHU Ziyang |
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| Institution: | WANG Jianmei1,ZHU Ziyang21. Department of Surveying , Geoinformatics,Tongji University,Shanghai 200092,China,2. Institute of Surveying , Mapping,Department of L, , Resources of Guangdong Province,Guangzhou 510500 |
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| Abstract: | In order to make the best use of existing aerial imagery and ground control points,save cost and reduce working hours,a new method of combined bundle block adjustment based on existing ground control points and multi-period aerial imagery is put forward in the paper. Firstly,the mathematical model of combined bundle block adjustment is deduced. Then the data sets of a place in South China are used to validate the proposed method. The experiment results show that the combined bundle block adjustment can deli... |
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| Keywords: | photo control point pass accuracy aerotriangulation combined bundle adjustment block adjustment |
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