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Abstract

A direct-view focal plane array (FPA) having a detector layer, an amplification layer, a non-uniformity correction layer and a display layer. A direct path from the detector to the display element in each pixel may be established via a configurable digitally set analog circuit that controls gain and level for non-uniformity correction. The detector layer is operative to detect an infrared image with a raw image pixel response x and convert the infrared image into an electrical signal. The electrical signal is then fed into the amplification layer for amplification and the non-uniformity layer for offset and gain correction. An offset correction coefficient b and a gain correction coefficient m are inputted to the non-uniformity layer, to transform the raw image pixel response x into a corrected pixel response y, which prevents the true scene content from bein masked by the fixed pattern.

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First Claim