Geometric Calibration and Image Quality Assessment of High Resolution Dual-Camera Satellite

被引：0

作者：

Fang Z. ^{[1
,2
]}

Wang X. ^{[1
,2
]}

Ji W. ^{[3
]}

Xu M. ^{[4
]}

Zhang Y. ^{[4
]}

Li Y. ^{[1
,2
]}

Li L. ^{[1
]}

机构：

[1] Space Star Technology Company Ltd., Beijing

[2] State Key Laboratory of Space-Ground Integrated Information Technology, Beijing

[3] Geovis Technology Company Ltd., Beijing

[4] China Academy of Space Technology, Beijing

来源：

Journal of Beijing Institute of Technology (English Edition) | 2021年 / 30卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Dual-camera; Geometric calibration; High resolution satellite; Image quality;

D O I：

10.15918/j.jbit1004-0579.2021.003

中图分类号：

学科分类号：

摘要：

The evaluation of geometric calibration accuracy of high resolution satellite images has been increasingly recognized in recent years. In order to evaluate geometric accuracy for dual-camera satellite images based on the ground control points (GCP), a rigorous geometric imaging model, which was based on the collinear equation of the probe directional angle and the optimized tri-axial attitude determination (TRIAD) algorithm, is presented. Two reliable test fields in Tianjin and Jinan (China) were utilized for geometric accuracy validation of Pakistan Remote Sensing Satellite-1. The experimental results demonstrate a certain deviation of the on-orbit calibration result from the initial design values of the calibration parameters. Therefore, on-orbit geometric calibration is necessary for optical satellite imagery. Within this research, the geometrical performances including positioning accuracy without/with GCP and band registration of the dual-camera satellite were analyzed in detail, and the results of geometric image quality are assessed and discussed. As a result, it is feasible and necessary to establish such a geometric calibration model to evaluate the geometric quality of dual-camera satellite. © 2021 Journal of Beijing Institute of Technology

引用

页码：125 / 138

页数：13

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