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Color filters based on metasurfaces have been widely investigated due to their advantages of high efficiency, flexible transfer characteristics and compactness. Nowadays, most of them have been developed only for controlling color hue and the output of most color filters is fixed, while another two elements of the color, namely saturation and value, are rarely considered. However, color saturation...
This paper describes an image analysis neural network that is used to determine analyte concentrations in xerogel-based sensor arrays. Xerogel-based sensor elements developed using sol-gel processing techniques have been used for recognition elements in many areas including the biomedical, industrial and environmental fields. These arrays are composed of many individual pin-printed xerogel "spots"...
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