液晶与显示2017，Vol.32Issue(8)：628-634,7.DOI:10.3788/YJYXS20173208.0628
数字域斜模态时间延迟积分技术
Digital domain tilting model time delayed and integration technology
金光 1宋明珠 2张贵祥 2曲宏松 3陶淑苹2
作者信息
- 1. 首都师范大学 北京成像技术高精尖创新中心,北京 100048
- 2. 中国科学院 长春光学精密机械与物理研究所,吉林 长春 130033
- 3. 中国科学院大学,北京 100049
- 折叠
摘要
Abstract
In order to realize super-resolution of remote sensing picture, an digital domain tilting model time delayed and integration(DT-TDI) technology is proposed, and its relevant technologies such as digital domain TDI technology, tilting sampling imaging theory, DT-TDI technology and etc are analysed and investigated. First, we establish general digital TDI model; then establish DT-TDI model applied to different tilt angle by utilizing tilting sampling imaging theory, then we choose tilt angle of 45° and prove the accuracy of DT-TDI by experiment, and obtain a series of low resolution images of a certain attitude and orbit in this angle. Finally, we reconstruct the low resolution images of subpixel shifting via super-resolution algorithm and obtain high resolution image. Experimental results indicate that the DT-TDI technology has a stable imaging capability, and the subpixel shifting error of low resolution images is about 15% in 45°, and the DT-TDI technology is satisfied with the demand of super-resolution. The resolution ratio of image is raised obviously after reconstruction.关键词
数字域TDI/斜模态/亚像素Key words
digital domain TDI/tilting model/subpixel分类
信息技术与安全科学引用本文复制引用
金光,宋明珠,张贵祥,曲宏松,陶淑苹..数字域斜模态时间延迟积分技术[J].液晶与显示,2017,32(8):628-634,7.
