Hyperspectral image sensor with calibration

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United States of America Patent

PATENT NO 11733095
APP PUB NO 20210247232A1
SERIAL NO

17302217

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for calibrating an image sensor begins by illuminating a portion of the image sensor with an input light spectrum, where the input light spectrum includes light of known wavelength and intensity. The method continues by sampling an output for each optical sensor of the image sensor, where each optical sensor is associated with one or more optical filters and where each optical filter being associated with a group of optical filters of a plurality of groups of optical filters. Each optical filter of a group of optical filters is configured to pass light in a different wavelength range and at least some optical filters in different groups of the plurality of groups of optical filters are configured to pass light in substantially a same wavelength range. The method then continues by comparing a sampled output for each optical sensor of the plurality of optical sensors with an expected output and generating a calibration factor for each of at least a subset of the plurality of optical sensors and storing the generated calibration factors in memory.

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Patent Owner(s)

  • IMEC

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haspeslagh, Luc Lubbeek-Linden, BE 24 384
Lambrechts, Andy Herent, BE 30 237
Tack, Nicolaas Buggenhout, BE 14 28

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