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一种光学遥感卫星多相机成像系统的高精度影像拼接方法

An High Accuracy Image Mosaicking Approach of Optical Remote Sensing Satellite for Multi-Camera System

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摘要

提出一种基于虚拟大相机的光学遥感卫星多相机系统成像数据的拼接方法, 实现多相机影像的高精度拼接。该方法根据各单相机的几何成像模型, 构建虚拟大相机的几何成像模型; 利用坐标正算、反算过程对各单相机影像进行间接法几何纠正, 得到虚拟大相机图像坐标系下的各虚拟单相机影像; 将各虚拟单相机影像基于影像坐标信息拼接处理后得到最终的虚拟大相机影像。该方法利用虚拟大相机实现多相机影像的高质量拼接, 为后期处理提供了与之相对应的高精度有理函数模型, 可用于不同数量、不同分辨率的多相机系统实现全自动智能地面预处理。

Abstract

A high accuracy image mosaicking method based on big virtual camera is proposed for multi-camera system on the optical remote sensing satellite to realize the high-precision stitching of multi-camera images. A big virtual camera is built according to the geometric imaging model of each single camera, and the geometric correction is performed by coordinate forward and back calculation based on their imaging models to obtain each single virtual image in the virtual camera image coordinate system. The final stitched image can be obtained by stitching single virtual image based on its coordinate information. By using the concept of big virtual camera, the high accuracy stitched image and corresponding rational function model for post processing are obtained at the same time. It can be used for multi-camera system with different quantities and resolutions to realize automatic intelligent ground preprocessing.

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中图分类号:P236

DOI:10.3788/aos201737.0828003

所属栏目:遥感与传感器

基金项目:国家自然科学基金(91438111, 91438203)、国家973计划(2014CB744201)

收稿日期:2017-03-23

修改稿日期:2017-04-16

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作者单位    点击查看

程宇峰:武汉大学测绘遥感信息工程国家重点实验室, 湖北 武汉 430079
金淑英:武汉大学测绘遥感信息工程国家重点实验室, 湖北 武汉 430079
王 密:武汉大学测绘遥感信息工程国家重点实验室, 湖北 武汉 430079
常学立:武汉大学资源与环境科学学院, 湖北 武汉430079
朱 映:武汉大学测绘遥感信息工程国家重点实验室, 湖北 武汉 430079

联系人作者:程宇峰(cyf_whu@126.com)

备注:程宇峰(1990-), 男, 博士研究生, 主要从事高分辨率光学影像几何处理方面的研究。

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引用该论文

Cheng Yufeng,Jin Shuying,Wang Mi,Chang Xueli,Zhu Ying. An High Accuracy Image Mosaicking Approach of Optical Remote Sensing Satellite for Multi-Camera System[J]. Acta Optica Sinica, 2017, 37(8): 0828003

程宇峰,金淑英,王 密,常学立,朱 映. 一种光学遥感卫星多相机成像系统的高精度影像拼接方法[J]. 光学学报, 2017, 37(8): 0828003

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