基于DSP的长波红外偏振图像伪彩色系统研究  

Pseudo Color System of Long Wave Infrared Polarization Image Based on DSP

作　　者：郭佳[1] 郭忠达[1] 阳志强[1,2] 李宏 GUO Jia;GUO Zhong-da;YANG Zhi-qiang;LI Hong(School of Photoelectric Engineering,Xi'an Technological University,Xi'an 710021,China;Shaanxi Key Laboratory of Thin Film Technology and Optical Testing,Xi'an 710021,China)

机构地区：[1]西安工业大学光电工程学院,陕西西安710021 [2]陕西省薄膜技术与光学检测重点实验室,陕西西安710021

出　　处：《光学与光电技术》2022年第2期126-133,共8页Optics & Optoelectronic Technology

基　　金：陕西省教育厅科研计划项目-协同创新中心项目(20JY030);陕西省科技计划项目-重点研发计划一般项目(2019GY-081)资助。

摘　　要：针对现有的红外偏振图像伪彩色技术只能对采集到的偏振图像进行标量的、非动态的显示,研究了基于P、S偏振态图像的红外伪彩色信号处理。将P、S偏振态图像信息经过处理后映射到RGB颜色空间,设计了以TMS320DM642芯片作为核心处理器的伪彩色处理系统硬件电路,完成了伪彩色信号处理系统的软件设计与调试分析。该红外偏振图像处理系统通过采集被测物体表面反射的红外偏振特性,获得更多有用信息的同时保证了对红外偏振图像的处理速度,对于红外目标识别及检测有参考意义。Aiming at the fact that the existing infrared polarization image pseudo color technology can only display the collected polarization image scalar and non dynamically,the infrared pseudo color signal processing based on P and S polarization image is studied,and the P and S polarization image information is mapped to RGB color space after processing. The hardware circuit of pseudo color processing system with TMS320DM642 chip as the core processor is designed,and the software design,debugging and analysis of pseudo color signal processing system are completed. By collecting the infrared polarization characteristics reflected from the surface of the measured object,the infrared polarization image processing system obtains more useful information and ensures the processing speed of the infrared polarization image. It is of great significance for infrared target recognition and detection.

关 键 词：图像处理 红外偏振成像 伪彩色处理 数字信号处理 实时处理 

分 类 号：TN391.41[电子电信—物理电子学]