Abstract
Physical pixel failure (blind pixel) is a serious issue when utilizing Infrared focal plane array (IRFPA) for measurement or surveillance purposes. Scene-based non-uniformity correction (SBNUC) techniques based on algorithms strength to estimate the correction parameters and to avoid using the reference-based non-uniformity correction (RBNUC). SBNUCs have disadvantages of ghosting artifacts and the difficulty of handling the appearance of a new blind pixel, too. This paper aims to enhance SBNUCs by developing a novel technique for blind pixels detection during initialization stage instead of the real-time streaming stage to eliminate the need for a complex algorithm. Researchers focused on studying the effect of skimming reference voltage (Vsk) on the global image contrast. Exciting Vsk by voltages close to its boundaries could reveal blind pixels from the image background so that they become easier to detect. This research proposes a little circuit modification, a routine of Vsk excitations, and any global thresholding technique to detect blind pixels.