Abnormal pixel detection system and method

Various techniques are disclosed to provide detection of temporally abnormal flicker pixels. In one example, a method includes capturing, by a thermal imager of an imaging device, a plurality of thermal images in response to infrared radiation received from a uniform black body, where the thermal images include a plurality of pixels having associated pixel values. The method also includes, for each pixel, determining a standard deviation of associated pixel values of the thermal image. The method also includes comparing the standard deviation to a threshold value. The method also includes identifying a subset of the pixels as temporal anomalous pixels in response to the comparing. The invention also provides other methods, devices and systems. 本发明公开了各种技术以提供对时间异常闪变像素的检测。在一个示例中，一种方法包括响应于从均匀黑体接收的红外辐射，通过成像装置的热成像器捕获多个热图像，其中所述热图像包括具有关联像素值的多个像素。所述方法还包括对于每个像素，确定所述热图像的关联像素值的标准偏差。所述方法还包括将所述标准偏差与阈值进行比较。所述方法还包括响应于所述比较将所述像素的子集识别为时间异常像素。本发明还提供了其他的方法、装置和系统。