中文    English
当前位置: 本站首页 » 科学研究 » 科研成果 » 正文

王密--Satellite jitter detection and compensation using multispectral imagery

发布日期:2016-12-01 18:18:24 阅读次数:[3096]次 作者:

核心提示:来源出版物: REMOTE SENSING LETTERS

作者: Wang, M (Wang, Mi); Zhu, Y (Zhu, Ying); Pan, J (Pan, Jun); Yang, B (Yang, Bo); Zhu, QS (Zhu, Quansheng)
来源出版物: REMOTE SENSING LETTERS  卷: 7  期: 6  页: S13-S22  DOI: 10.1080/2150704X.2016.1160298  出版年: 2016
摘要: Satellite jitter is an important factor that affects the geometric accuracy of high-resolution satellite imagery. However, it is often ignored when there are no high frequency and accurate attitude observations. This letter proposes a jitter detection and compensation method using multispectral imagery, which can improve the band-to-band registration accuracy and eliminate image distortion caused by satellite jitter only using image data. In the method, a jitter detection and compensation model is built to estimate the periodic distortion from band-to-band registration error of multispectral imagery. Both simulation data and Ziyuan-3 (ZY-3) satellite multispectral images were used to validate the presented method. In the experiment of ZY-3, the band-to-band registration accuracy of the compensated image is improved to 0.05 pixels in both across and along track directions and the distortions across and along the track are both supressed to less than 0.2 pixels as determined from the known positions of ground control points (GCPs), showing that the distortion caused by satellite jitter can be accurately estimated and corrected by the proposed method. 


版权所有:测绘遥感信息工程国家重点实验室   
联系地址: 中国·武汉市珞瑜路129号   邮编: 430079   E-mail:liesmars@whu.edu.cn
Tel/Fax:027-68778969(办公室) 027-68778229(国际交流办公室)027-68778525(研究生管理办公室)