一种集成式红外偏振探测器的盲元检测方法研究

现有集成式红外偏振探测器盲元检测主要依据GB/T 17444-2013中的判别方法获取死像元与过热像元,从而进行盲元替代,但是实际使用过程中,探测器的某些像元对偏振光无法进行正常响应,这些元无法通过国标进行剔除,严重影响成像质量,因此需要在原有的盲元检测方法基础上叠加一种偏振盲元检测方法,从而更加精准的对偏振红外探测器进行盲元评价。针对上述问题,本文提出了一种依据消光比获得偏振盲元的方法,从而可以精确实现对偏振器件偏振盲元与常规过热像元、死像元的多维度同时检测。

Research on Blind Element Detection Method for an Integrated Infrared Polarization Detector

The existing integrated infrared polarization detector blind element detection mainly relies on the discrimination method in GB/T 17444-2013 to obtain dead and overheated pixels for blind element replacement. However, in actual use, some pixels of the detector cannot respond properly to polarized light, and these pixels cannot be removed through national standards, seriously affecting imaging quality, Therefore, it is necessary to add a polarization blind element detection method on top of the existing blind element detection method, in order to more accurately evaluate the blind element of polarization infrared detectors. In response to the above issues, this article proposes a method to obtain polarization blind elements based on extinction ratio, which can accurately achieve multi-dimensional simultaneous detection of polarization blind elements of polarization devices, conventional overheated pixels, and dead pixels.