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海面目标的红外景象增强技术研究

Enhancement Technique for Infrared Scene with Maritime Target

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摘要

海天类红外图像的增强要求去除风浪等的环境影响,同时增强目标区域的对比度。通过探索几种典型的图像增强算法,结合红外图像梯度幅值直方图特点,提出基于梯度域的海面红外场景增强算法,将低梯度值置零去除海浪干扰,调整梯度范围对结果控制亮度,利用有效梯度范围均衡化增强目标区域的细节。实验结果表明,该算法可以明显降低图像的干扰信息,同时提高目标区域的对比度和信息熵。

Abstract

The enhancement of infrared images containing sea and sky requires not only to remove effects by heavy wind and waves, but also to enhance target region’s contrast. Exploring several typical image enhancing algorithms, and combining the characteristics of infrared image’s histogram of gradient magnitude, an algorithm based on the infrared image’s gradient domain is proposed. Low magnitude is set to zero to reduce wave disturbance, gradient magnitude range is adjusted to control brightness, and valid gradient magnitude range is equalized to enhance target region’s details. Experimental results show that the proposed algorithm can obviously reduce the interference information of the image and improve the contrast and information entropy of target region.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TN911.73

DOI:10.3788/aos201838.0610001

所属栏目:图像处理

基金项目:国家科技支撑计划(2014BAB12B03)、国家自然科学基金(61501077)、中央高校基本科研业务费专项资金(3132016351)

收稿日期:2017-12-19

修改稿日期:2018-01-18

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作者单位    点击查看

丁畅:大连海事大学信息科学技术学院, 辽宁 大连 116026
董丽丽:大连海事大学信息科学技术学院, 辽宁 大连 116026
许文海:大连海事大学信息科学技术学院, 辽宁 大连 116026

联系人作者:董丽丽(1147776326@qq.com)

备注:丁畅(1988-),男,博士研究生,主要从事图像处理、数据挖掘方面的研究。E-mail: longlongclinton@163.com

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引用该论文

Ding Chang,Dong Lili,Xu Wenhai. Enhancement Technique for Infrared Scene with Maritime Target[J]. Acta Optica Sinica, 2018, 38(6): 0610001

丁畅,董丽丽,许文海. 海面目标的红外景象增强技术研究[J]. 光学学报, 2018, 38(6): 0610001

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