红外技术Issue(8)：476-481,486,7.
基于多尺度的高动态红外图像增强算法
Enhancement Algorithm for High Dynamic Range Infrared Image Based on Multi-scale Processing
摘要
Abstract
Infrared images usually have very high dynamic range(HDR), up to 14 digital bits or more, such high dynamic range image contains both large signal variations and small low contrast details, however, this is unacceptable for both human perception and the ability of display devices. In this paper, we propose an improved method for the enhancement of infrared images based on the framework of edge preserving filter and multi-scale processing. First, a weighted least square(WLS) filter is used to split the raw image into multi-scale layers. Then the detail layers and the coarse layer are processed separately, boosting the details properly and compressing the coarse layer accordingly. Finally, all the layers are recombined to get the low dynamic range image for display. We demonstrate that the method proposed can both preserve the details of infrared images and eliminate or weaken the artifacts of halo and gradient reversal.关键词
高动态红外图像/像增强器算法/图像多尺度/加权最小二乘滤波器/边缘保留Key words
high dynamic range infrared image/image enhancement/multi-scale image processing/weighted least square filter/edge preserving分类
信息技术与安全科学引用本文复制引用
朱道广,隋修宝,朱才高,刘宁,陈钱..基于多尺度的高动态红外图像增强算法[J].红外技术,2013,(8):476-481,486,7.基金项目
南京理工大学自主科研专项计划资助项目，编号2011YBXM74；江苏省自然科学基金，编号BK2011698。 （）
