航空交错 TDI 红外影像复原

陈王丽; 孙涛; 秦前清; 石强; 马国锐

doi:10.16383/j.aas.2015.c140287

航空交错 TDI 红外影像复原

doi: 10.16383/j.aas.2015.c140287

1.
武汉大学测绘遥感信息工程国家重点实验室武汉 430079;
2.
武汉大学电子信息学院武汉 430079

基金项目:

国家自然科学基金(41171450,61001187),中国航天科技集团公司卫星应用研究院创新基金(2014_CXJJ-YG_03)

详细信息

作者简介:
秦前清武汉大学测绘遥感信息工程国家重点实验室教授. 1989 年获南开大学理学博士学位. 主要研究方向为空间信息压缩与渐近传输, 影像超分辨率重建及多元数据协同处理.E-mail: qqqin@lmars.whu.edu.cn

通讯作者:
孙涛武汉大学电子信息学院教授.2003 年获武汉大学工学博士学位. 主要研究方向为遥感影像处理, 环境建模,计算机视觉. 本文通信作者.E-mail: suntao@whu.edu.cn

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出版历程
- 收稿日期: 2014-04-22
- 修回日期: 2014-08-18
- 刊出日期: 2015-02-20

Restoration of Infrared Images Captured by Aerial Staggered TDI Cameras

1.
State Key Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079;
2.
School of Electronic Information, Wuhan University, Wuhan 430079

Funds:

Supported by National Natural Science Foundation of China (41171450, 61001187), and Open Research Fund of the Academy of Satellite Application (2014_CXJJ-YG_03)

摘要

摘要: 针对航空交错延时积分(Time delay and integration, TDI)红外影像奇数行和偶数行之间灰度差异、错动以及影像降晰问题, 提出了一种交错TDI红外影像复原方法. 首先采用对影像灰度差异不敏感的基于相位相关 (Phase-only correlation, POC) 的位移估计方法估计奇数行影像和偶数行影像之间的亚像素精度位移场. 其次以奇数行影像为参考, 根据位移估计结果对偶数行影像做点对点灰度校正, 并对齐奇数行影像和灰度校正后的偶数行影像. 最后采用BTV (Bilateral total variation)正则化超分辨率重建方法反降晰, 得到复原影像. 实验结果表明复原影像中奇偶行的错动得到有效补偿, 地物的边缘和纹理结构更加清晰, 影像质量显著提高.
- 交错延时积分 /
- 相位相关 /
- 位移估计 /
- 影像复原
Abstract: The infrared images captured by aerial staggered time delay and integration (TDI) cameras suffer from gray difference and stagger displacement between the odd field and even field, as well as blur owing to the long integrated exposure time. In order to restore the images, a POC (Phase-only correlation)-based motion estimation method is employed to estimate the motion field between the odd and even fields, because the POC is independent of gray differences between image pairs and can achieve sub-pixel accuracy. The motion field is then used for pixel-to-pixel gray correction of the even field with the odd field as the reference, and the odd field and the corrected even field are aligned. Finally, a BTV-based super-resolution algorithm is used for debluring. Experimental results show that the displacement is effectively compensated, texture and edges are sharper and clearer, and the quality of the restored image is improved obviously.
- Staggered TDI /
- phase-only correlation (POC) /
- motion estimation /
- image restoration

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参考文献(24)

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航空交错 TDI 红外影像复原

doi: 10.16383/j.aas.2015.c140287

作者简介:
秦前清武汉大学测绘遥感信息工程国家重点实验室教授. 1989 年获南开大学理学博士学位. 主要研究方向为空间信息压缩与渐近传输, 影像超分辨率重建及多元数据协同处理.E-mail: qqqin@lmars.whu.edu.cn

通讯作者:
孙涛武汉大学电子信息学院教授.2003 年获武汉大学工学博士学位. 主要研究方向为遥感影像处理, 环境建模,计算机视觉. 本文通信作者.E-mail: suntao@whu.edu.cn

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Restoration of Infrared Images Captured by Aerial Staggered TDI Cameras

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留言板

航空交错 TDI 红外影像复原

doi: 10.16383/j.aas.2015.c140287

作者简介: 秦前清 武汉大学测绘遥感信息工程国家重点实验室教授. 1989 年获南开大学理学博士学位. 主要研究方向为空间信息压缩与渐近传输, 影像超分辨率重建及多元数据协同处理.E-mail: qqqin@lmars.whu.edu.cn

通讯作者: 孙涛 武汉大学电子信息学院教授.2003 年获武汉大学工学博士学位. 主要研究方向为遥感影像处理, 环境建模,计算机视觉. 本文通信作者.E-mail: suntao@whu.edu.cn

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出版历程

Restoration of Infrared Images Captured by Aerial Staggered TDI Cameras

计量

出版历程

目录

作者简介:
秦前清武汉大学测绘遥感信息工程国家重点实验室教授. 1989 年获南开大学理学博士学位. 主要研究方向为空间信息压缩与渐近传输, 影像超分辨率重建及多元数据协同处理.E-mail: qqqin@lmars.whu.edu.cn

通讯作者:
孙涛武汉大学电子信息学院教授.2003 年获武汉大学工学博士学位. 主要研究方向为遥感影像处理, 环境建模,计算机视觉. 本文通信作者.E-mail: suntao@whu.edu.cn