Mathematical filtering of infrared images for integrated-circuit techniques

Computer processing of the infrared (IR) images speeds up considerably the evaluation of the measurement results. Processing of digitized IR images ma y be carried out by a variety of approaches and methods. On the whole, it m ay be said that it is expedient to tailor the strategy and the method of ev aluation to the phenomenon under scrutiny. This, in some cases, calls for b oth heat engineering experience and technical intuition. Image filtering is a special and not commonly used method of IR image analysis. The present a uthor has no information about publications on the mathematical filtering o f IR images. The first paper on that topic by the present author was publis hed in 1997. The mathematical IR image filtering in general is suitable for detecting some thermal faults which are difficult to identify otherwise. I mage filtering is based on the adequate transformation of the temperature f ield, i.e. the modification of the temperature values in the pixels of the image.