测绘学报 ›› 2014, Vol. 43 ›› Issue (12): 1224-1229.doi: 10.13485/j.cnki.11-2089.2014.0178

• 学术论文 • 上一篇    下一篇

CE-1立体相机与激光高度计数据联合平差

赵双明1, 冉晓雅1, 付建红1, 郭秋燕2   

  1. 1. 武汉大学 遥感信息工程学院, 湖北 武汉 430079;
    2. 国家测绘地理信息局 第一航测遥感院, 陕西 西安 710054
  • 收稿日期:2014-01-02 修回日期:2014-09-03 发布日期:2014-12-23
  • 作者简介:赵双明(1966-),男,博士,教授,博士生导师,主要研究方向为航空航天遥感影像几何处理、月球火星测绘.smzhao@whu.edu.cn
  • 基金资助:

    国家863计划(2010AA122202);国家自然科学基金(41101438)

Combined Adjustment of CE-1 Stereo Camera Image and Laser Altimeter Data

ZHAO Shuangming1, RAN Xiaoya1, FU Jianhong1, GUO Qiuyan2   

  1. 1. School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China;
    2. The First Institute of Photogrammetry and Remote Sensing, National Administration of Surveying, Mapping and Geoinformation, Xi'an 710054, China
  • Received:2014-01-02 Revised:2014-09-03 Published:2014-12-23

摘要:

CE-1三线阵立体相机和激光高度计主要用于获取月球形貌信息.CE-1沿轨运动过程中,可同时获取高分辨率的三线阵扫描影像和高精度的激光测高数据.在分析立体影像与激光高度计数据不一致性的基础上,为提高定位精度,将激光测距数据引入三线阵立体影像光束法平差处理.本文提出一种改进的外定向参数模型,采用3阶Lagrange多项式模型(LPM)建立外定向线元素内插模型,采用四元数球面线性内插建立外定向角元素模型,并根据改进模型建立激光高度计数据与影像数据的联合平差数学模型.试验表明,本文立体相机和激光高度计数据联合平差模型是有效的.

关键词: CE-1三线阵立体相机, 激光高度计, 联合平差, 平差尺度控制约束

Abstract:

CE-1 carries two types of mapping equipments: CE-1 Lunar laser altimeter and three-line-array stereo camera. Laser altimeter collects accurate laser altimetry data over the Lunar surface, while stereo camera acquires high resolution three-line-array CCD images. By means of an inconsistency analysis of stereo image and laser altimeter data, the CE-1 Laser altimeter ranges are expected to be incorporated into the bundle adjustment as measurements to improve accuracy of CE-1 image photogrammetric reduction. An improved exterior orientation model is proposed in which exterior orientation line element interpolation model is established with the 3 order Lagrange polynomial and the attitude interpolation model is established using spherical linear interpolation of quaternion. Secondly, a bundle combined adjustment of CE-1 stereo camera image and laser altimeter data is developed and implemented in this paper. experiment results show that the bundle combined adjustment model is effective.

Key words: CE-1 three-line-array CCD sensor, laser altimeter, combined adjustment, scale control constraints

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