| 三轴稳定卫星图像系统性几何校正研究 |
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| 引用本文： | 刘翔,张天序,杨卫东.三轴稳定卫星图像系统性几何校正研究[J].计算机与数字工程,2005,33(11):14-17. |
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| 作者姓名： | 刘翔 张天序 杨卫东 |
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| 作者单位： | 华中科技大学图像识别与人工智能研究所,图像信息处理与智能控制教育部重点实验室,武汉,430074 |
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| 基金项目： | 国家重点预研项目（项目编号：113020402） |
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| 摘 要： | 采用三轴稳定方式的地球静止轨道卫星在拍摄地球图像过程中，由于卫星的轨道和姿态角参数的变化，拍摄的图像存在几何畸变，必须通过相应的算法首先对其进行系统性几何校正，消除姿轨参数变化的影响，达到几何畸变校正的目的。叙述系统性几何校正公式推导，并介绍模拟畸变和校正畸变所采用的图像重采样方式，最后给出相关地球圆盘图的模拟和校正结果，通过比较证明校正公式是可行的。
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| 关 键 词： | 图像处理 静止轨道 三轴稳定 系统性几何校正 重采样 |
| 收稿时间： | 2005-03-21 |
| 修稿时间： | 2005年3月21日 |
Three-axis-stabilized Satellite Image Distortion Simulation and Systemic Geometric Correction |
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| Liu Xiang,Zhang Tianxu,Yang Weidong.Three-axis-stabilized Satellite Image Distortion Simulation and Systemic Geometric Correction[J].Computer and Digital Engineering,2005,33(11):14-17. |
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| Authors: | Liu Xiang Zhang Tianxu Yang Weidong |
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| Affiliation: | Institute for Pattern Recognition and Artificial Intelligence, HUST, State Key Laboratory for Image Processing and Intelligent Control, Wuhan 430074 |
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| Abstract: | Because of the influence of satellite's orbit and attitude parameter changes,there are geometric distortions in photos to the earth,which is taken by three-axis-stabilized geostationary satellite on its orbit performance.We must perform systemic geometric correction first through corresponding algorithm to eliminate the influence of Attitude and Orbit parameter changes.This article studies the systemic geometric correction formulas,and resampling to images when simulating and correcting the distortion.Finally the correlated results of simulated and corrected images of the earth disk are presented and they show that these formulas are practical. |
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| Keywords: | image processing geostationary three- axis- stabilized systemic geometric correction resampling |
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