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fixed pattern noise (photo sensor) (FPN)

Fixed Pattern Noise (FPN) is a special noise pattern of image sensors that becomes visible at longer exposure times.

This spatially determined noise is caused by the different response of the individual pixels to the same illumination intensity. Individual pixels react differently to the offset and gain and therefore respond more sensitively than other pixels to brightness values.

FPN noise refers to two parameters: To the Dark Signal Non-Uniformity (DSNU), which stands for the offset, and the gain, which is given by the Photo Response Non-Uniformity (PSNU).

Englisch: fixed pattern noise (photo sensor) - FPN
Updated at: 13.10.2017
#Words: 87
Links: noise (N), image, response (RSP), illumination, brightness
Translations: DE

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