激光技术Issue(2)：155-160,6.DOI:10.7510/jgjs.issn.1001-3806.2014.02.003
基于小波变换的 EMCCD微光图像融合算法
Fusion algorithm of EMCCD’ s low-light-level images based on wavelet transform
摘要
Abstract
Because of different gain , the image content displayed by the electron multiplying charge coupled device (EMCCD) was different and the image had low contrast and narrow dynamic range .Meanwhile, the overall image was dark, fuzzy and whitish .An image fusion algorithm based on wavelet transform was put forward to apply into low-light-level images with different gain levels .Firstly, two groups of low-light-level images were acquired in the same scene with different gain level.Secondly, proper fusion rules were chosen based on low-light-level image’s characteristics after wavelet transform.Finally, the images were fused by wavelet transform , high quality fusion image and the performance data of fusion image , such as entropy , standard deviation , average gradient were obtained .Results show that the fusion algorithm based on wavelet transform can make the fusion image with both low and high brightness scenery and enlarge the image ’ s dynamic range and contrast .The image quality is effectively improved .关键词
图像处理/微光图像融合算法/小波变换/电子倍增电荷耦合器件倍增增益Key words
image processing/fusion algorithm of low-light-level image/wavelet transform/electron multiplying charge coupled device multiplication gain分类
信息技术与安全科学引用本文复制引用
陈锋,张闻文,虞文俊,陈钱,顾国华..基于小波变换的 EMCCD微光图像融合算法[J].激光技术,2014,(2):155-160,6.基金项目
核心电子器件、高端通用芯片及基础软件产品资助项目（2013ZX01005001）；武器装备预研基金资助项目（40405030202）；南京理工大学“紫金之星”基金资助项目；江苏省自然科学基金资助项目 （）
