顾及曝光延迟的无人机GPS辅助光束法平差方法

张春森; 朱师欢; 臧玉府; 肖雄武; 薛万唱

doi:10.11947/j.AGCS.2017.20160583

测绘学报 >

2017 , Vol. 46 >Issue 5: 565 - 572

DOI: https://doi.org/10.11947/j.AGCS.2017.20160583

摄影测量学与遥感

顾及曝光延迟的无人机GPS辅助光束法平差方法

张春森 ,
朱师欢 ,
臧玉府 ,
肖雄武 ,
薛万唱

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1. 西安科技大学测绘科学与技术学院, 陕西西安 710054;
2. 武汉大学测绘遥感信息工程国家重点实验室, 湖北武汉 430079;
3. 武汉讯图科技有限公司, 湖北武汉 430079

张春森(1963-),男,博士,教授,研究方向为数字摄影测量与遥感应用。E-mail:zhchunsen@aliyun.com

收稿日期: 2016-11-17

修回日期: 2017-02-07

网络出版日期: 2017-06-05

基金资助

国家自然科学基金（91638203；41127901）

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GPS-supported Bundle Adjustment Method of UAV by Considering Exposure Delay

ZHANG Chunsen ,
ZHU Shihuan ,
ZANG Yufu ,
XIAO Xiongwu ,
XUE Wanchang

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1. College of Geomatics, Xi'an University of Science and Technology, Xi'an 710054, China;
2. State Key Laboratory of Information Engineering in Surveying, Mapping & Remote Sensing, Wuhan University, Wuhan 430079, China;
3. Wuhan Xuntu Technology Co. Ltd., Wuhan 430079, China

Received date: 2016-11-17

Revised date: 2017-02-07

Online published: 2017-06-05

Supported by

The National Natural Science Foundation of China (Nos. 91638203;41127901)

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摘要

现有GPS辅助光束法区域网平差方法没有顾及无人机进行摄影测量参与作业的情况。针对相机的曝光延迟误差影响不一致而导致实际平差结果较理论估值低的问题，本文探讨了曝光延迟产生的机理并分析曝光延迟对GPS辅助光束法平差的影响，提出了一种顾及曝光延迟的GPS辅助光束法平差方法。通过采用不同控制点个数及布设方案，对一套包含142张无人机影像数据进行试验分析，验证了该方法的有效性。该方法的研究意义在于可以在传统GPS辅助光束法平差方法的基础上进一步提高空三加密精度。

关键词： 曝光延迟; GPS辅助光束法平差; 低空摄影测量; 空三加密精度

本文引用格式

张春森 , 朱师欢 , 臧玉府 , 肖雄武 , 薛万唱 . 顾及曝光延迟的无人机GPS辅助光束法平差方法[J]. 测绘学报, 2017 , 46(5) : 565 -572 . DOI: 10.11947/j.AGCS.2017.20160583

Abstract

The existing GPS-supported bundle adjustment method does not take into account the influence of camera exposure delay error impact in UAV photogrammetry is inconsistent which leading to the actual adjustment results are worse than the theoretical results. The mechanism of exposure delay is studied. The impact of exposure delay on GPS-supported bundle adjustment is analyzed. And a GPS-supported bundle adjustment method by considering the exposure delay is proposed. The effectiveness of the proposed method is verified by a typical dataset of 142 images. The meaning of the proposed method is that it can achieve the better aero-triangulation accuracy than the traditional GPS-supported bundle adjustment method.

Key words： exposure delay; GPS-supported bundle adjustment; low-altitude photogrammetry; accuracy of aero-triangulation

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