Research on optimization of ortho-image mosaic seamline in airborne Lidar system

doi:10.3778/j.issn.1002-8331.2010.18.006

Computer Engineering and Applications ›› 2010, Vol. 46 ›› Issue (18): 15-17.DOI: 10.3778/j.issn.1002-8331.2010.18.006

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Research on optimization of ortho-image mosaic seamline in airborne Lidar system

SUN Jie

School of Remote Sensing and Information Engineering，Wuhan University，Wuhan 430072，China

Received:2010-03-31 Revised:2010-05-11 Online:2010-06-21 Published:2010-06-21
Contact: SUN Jie

机载LIDAR系统正射影像镶嵌线优化算法研究

孙杰

武汉大学遥感信息工程学院，武汉 430072

通讯作者: 孙杰

Abstract

Abstract: A detailed study of choosing the best seamline in image mosaicing has been carried out in Airborne LIDAR system.An innovated A* algorithm is proposed with assistance of high-precision DSM to make the seamline keep away from the tall ground objects in the registered image automatically.It is found that this method can optimize the seamline exactly and intelligently to improve the quality of ortho-image.

Key words: Light Detect And Ranging（LIDAR）, point cloud, punishment coefficient, A* algorithm, ortho image, seamline

摘要： 在机载LIDAR（Light Detect And Ranging）系统中，针对正射影像镶嵌线优化需求，提出一种双惩罚系数的改进A*算法，通过点云生成高精度DSM辅助，对影像初始的镶嵌线进行优化进而得到一条最优化镶嵌线。实验证明：该方法可以准确、智能地对镶嵌线进行优化，改善镶嵌后影像质量。

关键词: LIDAR系统, 点云, 惩罚系数, A*算法, 正射影像, 镶嵌线

CLC Number:

P237.3

SUN Jie. Research on optimization of ortho-image mosaic seamline in airborne Lidar system[J]. Computer Engineering and Applications, 2010, 46(18): 15-17.

孙杰. 机载LIDAR系统正射影像镶嵌线优化算法研究[J]. 计算机工程与应用, 2010, 46(18): 15-17.

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Research on optimization of ortho-image mosaic seamline in airborne Lidar system

机载LIDAR系统正射影像镶嵌线优化算法研究

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