摘要
非制冷焦平面的非均匀性和噪声是限制非制冷红外热成像系统性能的主要因素,图像处理是非制冷红外热成像系统的关键技术之一。研制了非制冷红外热成像系统的图像算法评估系统,系统由高温黑体、低温黑体、红外光学系统、焦平面驱动电路、热电温控电路、信号处理系统、计算机和评估软件等构成,利用该系统可以将微测辐射热计非制冷红外焦平面各像元的输出信号数字化后传输给计算机,实现对焦平面的非均匀测试,同时可以通过软件对各种图像处理算法的效果进行分析和评估,为非制冷红外热成像的图像处理算法的选择提供依据,文中给出了实验结果。
Non-uniformity and noise of uncooled infrared focal plane arrays（UFPA） restrict the performance of uncooled infrared imaging system. Image processing is one of key technologies designing uncooled infrared imaging system. The system that can evaluate the image processing algorithms applied in uncooled infrared imaging system is developed. The measurement system consists of high temperature blackbody, low temperature blackbody, infrared optics, driver circuit of UPFA, control circuit of thermoelectric stabilizer（TEC）, signal processing unit, computer and evaluating software. By the evaluating system, the pixel signals of microbolometer infrared focal plane arrays can be digitalized and transmitted to computer. The non-uniformity measurements of UFPA are realized. Simultaneously, image processing algorithm can be evaluated to guide the choice of algorithm applied in uncooled infrared imaging system. The results are given and analyzed.
出处
《红外技术》
CSCD
北大核心
2007年第10期612-616,共5页
Infrared Technology
关键词
非制冷红外焦平面
微测辐射热计
图像处理
非均匀校正
算法评估
uncooled infrared focal plane array
microbolometer
image processing
non-uniformity correction
algorithm evaluation.
