测绘通报 ›› 2023, Vol. 0 ›› Issue (4): 29-34,40.doi: 10.13474/j.cnki.11-2246.2023.0100

• 学术研究 • 上一篇    下一篇

众源空中全景影像位姿的透视变换解算方法

蒲泓亦, 李锋, 徐铮   

  1. 信息工程大学, 河南 郑州 450001
  • 收稿日期:2022-06-07 发布日期:2023-04-25
  • 通讯作者: 李锋。E-mail:jueyun1020@126.com
  • 作者简介:蒲泓亦(1998—),男,硕士生,研究方向为环境建模与仿真。E-mail:hong785296384@163.com
  • 基金资助:
    军委科技委基础加强计划领域基金(2019-JCJQ-JJ-121)

Perspective transformation method for position-attitude calculation of crowdsourcing aerial panoramic imaging

PU Hongyi, LI Feng, XU Zheng   

  1. Information Engineering University, Zhengzhou 450001, China
  • Received:2022-06-07 Published:2023-04-25

摘要: 由于缺少位姿信息,众源空中全景影像无法在地理信息空间中精确定位定向,本文提出了基于透视变换的众源空中全景位姿解算方法。首先阐述基于透视变换的球面全景空间交会方法原理,设计了位姿解算方案;其次构建了球面全景模型,使用透视变换实现了“平-球-平”模型变换;然后依据模型变换的变形特征,设计了迭代重加权最小二乘法解算位姿参数;最后以登封市纸坊水库空中全景影像为案例,验证了本文方法的可行性和可靠性。

关键词: 众源空中全景影像, 透视变换, 迭代重加权最小二乘法, 位姿解算, 境外战场环境勘察

Abstract: For the lack of position-attitude information, crowdsourcing aerial panoramic imaging is not able to precisely locate and orient in the geographic information space.A perspective transformation-based method of position-attitude calculation is proposed. First of all, the principle of proposed method is illustrated and the calculation scheme is designed. Secondly, spherical panorama model is constructed and “flat-sphere-flat” model transformation is implemented by perspective transformation Meanwhile, iterative reweighted least squares(IRLS) is designed for position and attitude calculation based on the deformation characteristics of model transformation. Finally, feasibility and reliability of the method are experimentally verified by using aerial panoramic images of Zhifang reservoir as a case.

Key words: crowdsourcing aerial panoramic imaging, perspective transformation, IRLS, position-attitude calculation, overseas battlefield environment reconnaissance

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