一种红外图像二维细节增强技术研究与实现  

Research and realization of two-dimensional detail enhancement technology for infrared image

作　　者：李刚[1] 马建国[1] 刘纪洲[1] 

机构地区：[1]华北光电技术研究所,北京100015

出　　处：《激光与红外》2016年第7期901-905,共5页Laser & Infrared

摘　　要：针对红外图像的特点,提出并实现了一种基于FIR(Finite Impulse Response,有限冲激响应)滤波器结合图像动态压缩的二维数字图像细节增强技术。该方法首先对实时的二维红外图像进行行、列向量的一维分解,然后使用FIR滤波器分别对图像的行、列向量进行细节提取,之后对原始图像和提取的图像细节进行加权融合,最后通过直方图处理算法对融合图像进行动态压缩,最终完成了能够满足实际应用的实时红外图像的细节增强。本技术以FPGA为核心处理器,采用FPGA+NIOS软核+DSP内核的处理架构实现算法,已成功应用于工程项目中。A two- dimensional detail enhancement technology is designed based on FIR filter and image dynamic compression. First of all,two- dimensional real- time infrared image was decomposed from row vector and column vector. Secondly,image details of row vector and column vector are extracted by FIR filter,and then the extracted image details and the original image are weighted and fused. Lastly,the fusion image is dynamically compressed by histogram algorithm,and detail enhancement of real- time infrared image which can satisfy actual application is achieved.The results show that this method has a certain feasibility and has been applied to the practice.

关 键 词：FIR滤波器 二维分解 图像动态压缩 FPGA 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]