Image jitter detection and compensation using a high-frequency angular displacement method for Yaogan-26 remote sensing satellite
Image jitter detection and compensation using a high-frequency angular displacement method for Yaogan-26 remote sensing satellite
复制标题
遥感二六号遥感卫星高频角位移法图像抖动检测与补偿
DOI：
10.1016/j.isprsjprs.2017.05.004
复制
发表时间：
2017-08-01
影响因子：
12.7
通讯作者：
Chang, Xueli
中科院分区：
文献类型：
--
作者：
Wang, Mi;Fan, Chengcheng;Chang, Xueli
卫星平台抖动是制约高分辨率光学卫星影像成像质量的重要因素。为了解决高分辨率图像姿态抖动补偿的关键问题，提出了一种利用高频角位移数据检测和补偿高分辨率图像姿态抖动的稳态重成像模型。采用双向卡尔曼滤波和全局加权平滑方法，实现了星星敏感器和角位移敏感器的信息融合，获得了图像抖动检测所需的高频姿态。然后，基于严格的几何模型，利用稳态重成像模型对畸变图像进行校正，使其具有地理位置一致性。以遥感卫星遥感影像中受平台抖动影响的机场、目标和定标场全色图像为例，验证了该方法的有效性和准确性。补偿结果表明，该方法能有效地改善受平台抖动影响的图像的相对几何质量，图像的抖动失真得到明显消除。与传统的地面控制点光束法平差相比，该方法还可以提高绝对几何精度。(C)2017年国际摄影测量与遥感学会（摄影测量和遥感学会）。Elsevier B.V.出版，保留所有权利。
Satellite platform jitter is an important factor restricting the imaging quality of high-resolution (HR) optical satellite images. To address the critical issue of compensation for attitude jitter in HR images, this paper proposes a steady-state reimaging model using high-frequency angular displacement data to detect and compensate for the attitude jitter of HR images. The bidirectional Kalman filter and overall weighted smoothing method helps realizing information fusion of star sensor and angular displacement sensor and obtaining the high-frequency attitude for image jitter detection. Then, the steady reimaging model is used to correct the distorted image with geolocation consistency based on a rigorous geometric model. The Yaogan-26 remote sensing satellite's distorted panchromatic images of airports, targets and calibration fields affected by platform jitter were used to validate the effectiveness and accuracy of the proposed method. The compensation results show that the proposed method can effectively improve the relative geometric quality of images affected by platform jitter, with the images' jitter distortion being clearly eliminated. Compared to the conventional compensation method that bundle adjustment with GCPs, the absolute geometric accuracy can also be improved. (C) 2017 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS). Published by Elsevier B.V. All rights reserved.