自然彩色化双通道实时图像融合系统  

Dual-channel real-time image fusion system with nature color

作　　者：裴闯[1] 蒋晓瑜[1] 王加[1] 梁浩聪[1] 

机构地区：[1]装甲兵工程学院控制工程系,北京100072

出　　处：《光学精密工程》2013年第5期1333-1339,共7页Optics and Precision Engineering

基　　金：军内重点科研基金资助项目(No.404010204)

摘　　要：考虑硬件资源与运算速度的需求,设计了一种基于数字信号处理(DSP)的具有自然彩色效果的红外与可见光图像融合系统。该系统采用软硬件结合的方法进行双通道图像配准,基于YCbCr空间实现伪彩色融合,然后利用自然真彩色参考图像对融合结果进行颜色传递。系统采用基于统计特性的颜色查找表技术,利用参考图像与伪彩色融合图像的统计特性修正颜色查找表,提高了计算效率。在系统的硬件平台上进行了实验,结果表明,系统融合图像接近自然色彩,在保留可见光图像细节的前提下,有效地突出了红外图像中的热目标。该系统融合速率达到25frame/s,能够实现红外与可见光图像的实时融合与自然彩色化,有助于观察人员快速地发现目标,弥补了单一图像传感器的不足。In consideration of the hardware resources and improving computing speeds,a dual-channel infrared and visible image fusion system with nature color was designed based on a Digital Signal Processor（DSP） to registrate dual-channel images by combining hardware and software.A false color image fusion algorithm was used to fuse the images in a YCbCr color space,then the system chose a reference image to transfer color to the fusion result.Furthermore,a color lookup table based on statistical properties of image was used to solve the complexity computation problem in color transfer.The real-time fusion and natural colorization of infrared and visible images were realized by this system.An experiment was performed on the wareplatform.The result shows that the color-transferred image has natural color perception to human eyes,and can highlight the targets effectively with clear background details.The fusion speed of this system is up to 25 frame/s,which impletments the fusion of infrared and visible images and the natural colorization in real time and satisfies the requirements of real-time image processing.The system makes up the disadvantages of single image sensor,improves the ability to detect potential targets.

关 键 词：图像处理 图像融合 伪彩色融合 颜色传递 颜色查找表 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]