基于LabVIEW的红外图像非均匀性校正  

Uniformity Correction of IR Images Based on LabVIEW

作　　者：潘银松[1] 王丹[1] 薛联[1] 

机构地区：[1]重庆大学光电技术及系统教育部重点实验室,重庆400030

出　　处：《仪表技术与传感器》2008年第3期39-41,共3页Instrument Technique and Sensor

摘　　要：在凝视红外焦平面成像系统的实际应用中,经常需要根据目标红外辐射强度改变探测器的积分时间,从而导致红外图像的均匀性明显变差。利用虚拟仪器技术,在LabVIEW中,先根据一点校正法,对红外图像进行积分时间校正,再利用两点温度校正法进行非均匀性校正。处理结果证明:提高了常用两点校正法的非均匀性校正能力。In the practical application of staring IRFPA imaging system, integration time of the detector often need to be adjusted if the object＇s intensity of IR radiation is changed. Nonuniformity of IR image gets worse when integration time is changed. In order to reduce the nonuniformity of an IR image, according to the virtual instrument technology in LabVIEW, it corrected integration time based on one-point calibration, then carried out two-point calibration for nonuniformity correction. LabVIEW can be applicated very well in the IRFPA imaging system. The process result proves that it improves the nonuniformity correction ability of common two-point calibration.

关 键 词：焦平面阵列非均匀性校正 两点温度校正 积分时间 LABVIEW 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]