摘要
由于原理及技术方面的限制,目前的非制冷红外焦平面器件仅有较低的空间分辨率,大大限制了非制冷红外焦平面器件在军事及国民经济各领域的应用。基于红外热图像灰度相关性分析,从红外焦平面阵列器件微区结构出发,研究了实现红外图像电子变倍的电子微扫描算法,介绍了2×2电子微扫描红外图像电子变倍的算法及其仿真效果,并与双线性插值算法进行了比较。该算法有效地实现了红外焦平面热图像的电子变倍,提高了采样带宽,降低了红外焦平面空间抽样成像引起的频谱折叠混淆效应。
Current un-cooled infrared Focal Plane Arrays have comparatively low resolution. It limits the application of IRFPA in the field of military affairs and national economy. Based on the analysis of IRFPA pixel gray correlation and the micro structure of IRFPA device, electronic micro-scan arithmetic is studied for the realization of infrared image electronic magnification. 2 ×2 style electronic micro-scan arithmetic and its electronic magnification simulation effect are introduced , and it is compared with that of bilinear interpolation arithmetic. This arithmetic effectively realizes IRFPA image electronic magnification, increases sampling bandwidth, and reduces IRFPA spatial sampling aliasing effect to some extend.
出处
《红外与激光工程》
EI
CSCD
北大核心
2007年第2期207-210,共4页
Infrared and Laser Engineering
基金
预研基金资助项目(51403030905BQ0216)
南京理工大学科研发展基金资助项目(KYF05028)
关键词
红外焦平面
空间抽样成像
电子变倍
电子微扫描
频谱混淆效应
Infrared FPA
Spatial sampling imaging
Electronic magnification
Electronic microscan
Spectrum aliasing effect
