基于DM642的激光水下图像处理系统设计与实现  

Design and implementation of image processing system for range-gated underwater laser imaging system based on DM642

作　　者：葛卫龙[1] 张晓晖[1] 韩宏伟[1] 华良洪[2] 

机构地区：[1]海军工程大学兵器工程系,湖北武汉430033 [2]海军装备部,北京100841

出　　处：《红外与激光工程》2012年第6期1641-1645,共5页Infrared and Laser Engineering

基　　金：海军十一五预研项目

摘　　要：搭建了一种距离选通激光水下成像系统,分析了水下光电图像的特点,采用DM642数字信号处理芯片为核心设计了数字图像处理系统,给出了利用平台直方图均衡化实现水下图像增强算法原理以及该算法在设计的图像处理系统中的实现方法,并给出了利用该方法对水下25 m和40 m处目标所成图像的处理结果。实验结果表明,利用文中搭建的距离选通水下成像系统和设计的图像处理系统可以有效实现对水下目标的成像探测并能提高目标图像的对比度。The photoelectric imaging system is an important way to detect underwater object. In this article, a range-gated underwater laser imaging system was built, the characteristic of underwater object imaging was analyzed briefly. An image-processing system which used DM642 as the core was designed. Image enhancement algorithm for range-gated underwater laser imaging system was studied, which was based on plateau histogram equalization. The designed image-processing system implemented the enhancement algorithm. The image-processing results of underwater distance 25 m and 40 m were given. Experimental results show that the range-gated underwater laser imaging system and image-processing system can detect underwater objects effectively and improve the target contrast.

关 键 词：图像处理 水下成像系统 距离选通 DM642 

分 类 号：TB133[机械工程—光学工程]