一种新的红外焦平面阵列盲元处理算法

为了有效检测和补偿红外焦平面阵列(IRFPA)的盲元,提出一种IRFPA盲元即时处理的新算法。该算法利用红外系统实时成像过程中盲元与有效像元的窗口响应率存在的显著差异性,实现盲元的快速检测;依据图像信息的时空相关性实现盲元的在线补偿。最后给出了盲元处理的硬件实现过程。实验结果表明:该算法流程简单,通用性强,能够对系统工作过程中随机出现的盲元进行即时检测和补偿,在实际工程中具有较大的应用价值。

A New Algorithm of Blind Pixels Processing for IRFPA

In order to effectively detect and compensate blind pixels for IRFPA,a new algorithm of blind pixel real-time processing for IRFPA is presented.The algorithm,which makes the best of the obvious difference of window responsivity between effective pixels and blind pixels during IRFPA real-time imaging,realizing blind pixels rapid detection,and utilizes the spatial-temporal correlation of image information,realizes blind pixels on-line compensation.Finally the hardware circuit implementation is given out.The experimental results show that it has the advantages of simple flow,good versatibility,fast detection and compensation for random blind pixels in IR imaging with great application value in practical project.