| 基于人工鱼群算法的平面位移场单像测量 |
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| 引用本文： | 贺亮,刘荣,吕开云.基于人工鱼群算法的平面位移场单像测量[J].桂林工学院学报,2012,32(2):287-290. |
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| 作者姓名： | 贺亮 刘荣 吕开云 |
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| 作者单位： | 东华理工大学测绘工程学院,江西抚州,3440004 |
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| 基金项目： | 江西省自然科学基金项目 |
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| 摘 要： | 提出一种基于人工鱼群算法的平面位移场单像测量的方法.先将相机与待测量平面保持基本水平,假设像平面和待测量平面近似满足相似变换关系,根据距离关系设定两个控制点的坐标,计算剩余控制点的概略坐标.然后根据各控制点的概略坐标及其与基准点间的距离关系,用人工鱼群算法迭代计算出各个控制点的精确坐标.计算出两平面间的单应矩阵,得到平面间转换关系和平面位移场.实验证明了本方法的有效性和精度.
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| 关 键 词： | 摄影测量 平面位移场 人工鱼群 单应矩阵 |
2D Displacement Field Measurement by Single-View Metrology Based on AFSA |
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| HE Liang
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LIU Rong
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LU Kai-yun.2D Displacement Field Measurement by Single-View Metrology Based on AFSA[J].Journal of Guilin University of Technology,2012,32(2):287-290. |
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| Authors: | HE Liang LIU Rong LU Kai-yun |
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| Affiliation: | HE Liang, LIU Rong, LU Kai-yun ( Faculty of Geomatics, East China Institute of Technology, Fuzhou 344000, China) |
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| Abstract: | A single-view metrology approach based on AFSA （artificial fish school algorithm） is proposed. The camera is placed perpendicularly to the model plane, the approximate coordinates of control points can be determined by the similarity transformation. Exact coordinates can be calculated by AFSA according to the distant information and the former coordinates. The displacement field can be acquired through homography matrix calibration. The experimental example proves the accuracy of this approach. |
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| Keywords: | photogrammetry plane displacement field AFSA homography matrix |
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