Hyperspectral imaging in the SWIR range: first VGA module

January 25, 2018 //By Julien Happich
Hyperspectral imaging in the SWIR range: first VGA module
Nanoelectronics research center Imec has developed a shortwave infrared (SWIR) range hyperspectral imaging camera able to discriminate information on all kinds of materials.

The SWIR range camera (1000 to 1700nm) integrates CMOS-based spectral filters together with InGaAs-based imagers, combining the compact and low-cost capabilities of CMOS technology with the spectral range of InGaAs.

“SWIR range is key for hyperspectral imaging as it provides extremely valuable quantitative information about water, fatness, lipid and protein content of organic and inorganic matters like food, plants, human tissues, pharmaceutical powders, as well as key discriminatory characteristics about plastics, paper, wood and many other material properties,” commented Andy Lambrechts, program manager for integrated imaging activities at imec.

“It was a natural evolution for imec to extend its offering into the SWIR range while leveraging its core capabilities in optical filter design and manufacturing, as well as its growing expertise in designing compact, low-cost and robust hyperspectral imaging system solutions to ensure this complex technology delivers on its promises.”

SWIR range hyperspectral imaging for the
classificationof nuts versus their nut’s shells.

Imec’s initial SWIR range hyperspectral imaging cameras feature both linescan ‘stepped filter’ designs with 32 to 100 or more spectral bands, as well as snapshot mosaic solutions enabling the capture of 4 to 16 bands in real-time at video-rate speeds. Cameras with both USB3.0 and GIGE interface are currently in the field undergoing qualification with strategic partners.

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