Abstract: Provided is a detection system for detecting abnormalities in a coated substrate having a coating and a substrate, and including a detection device that includes a housing configured to block external sources of light from impinging on the coated substrate, a light source array including a plurality of light sources and configured to be arranged to direct light upon the coated substrate, an optical imaging system configured to capture a video data stream and still images of the coating and an underlying surface of the substrate including structure features comprising any abnormalities in the coated substrate, an on-board embedded system to control the light source array and the optical imaging system and perform real-time processing to correct spatial and temporal variations in intensity of the plurality of light sources of the light source array, and spatial and temporal variations in sensitivity and optical Narcissus effect of the optical imaging system.

Abstract: Provided is a detection system for detecting abnormalities in a coated substrate having a coating and a substrate, and including a detection device that includes a housing configured to block external sources of light from impinging on the coated substrate, a light source array including a plurality of light sources and configured to be arranged to direct light upon the coated substrate, an optical imaging system configured to capture a video data stream and still images of the coating and an underlying surface of the substrate including structure features comprising any abnormalities in the coated substrate, an on-board embedded system to control the light source array and the optical imaging system and perform real-time processing to correct spatial and temporal variations in intensity of the plurality of light sources of the light source array, and spatial and temporal variations in sensitivity and optical Narcissus effect of the optical imaging system.

Abstract: Provided is a system for detecting abnormalities in underlying surface of a coated substrate that includes a housing blocking external sources of light from impinging on the coated substrate; an array of light sources, matched in bandwidth to the transmission spectrum of the coating, arranged to direct light upon the coated substrate; an optical imaging system matched to the wavelength range of the light source array and positioned to collect reflected and scattered light from the substrate and generate an image of the structural features including any abnormalities in the substrate; and an onboard embedded system, providing real-time image processing to correct spatial and temporal variations in the light source array intensity and optical imaging system sensitivity. The optical imaging system includes a focal plane array matched in bandwidth to the transmission spectrum of the coating, and a flat optical window configured to reduce the optical Narcissus effect.