1. A method for detecting defects in imaging arrays comprising arrays of pixels, the method comprising, obtaining a set of images acquired by an imaging array, each image comprising a set of pixel values corresponding to pixels of the image; taking each of a plurality of images in the set as a current image and obtaining for at least one of the pixels, for each of one or more of a plurality of defect types, a corresponding updated probability, the updated probability based at least in part upon: a pixel value corresponding to the at least one pixel; statistics of pixel values of other pixels in the current image; and one or more prior probabilities that the one of the pixels has the corresponding defect type.