Bioinspired 9-band camera for multispectral imaging in the near-infrared
Hajek, Brianna Scheid
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https://hdl.handle.net/2142/122274
Description
Title
Bioinspired 9-band camera for multispectral imaging in the near-infrared
Author(s)
Hajek, Brianna Scheid
Issue Date
2023-12-07
Director of Research (if dissertation) or Advisor (if thesis)
Gruev, Viktor
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
multispectral
imaging
Abstract
Image-guided cancer surgery using near-infrared (NIR) fluorescence, with real-time guidance for tumor localization and margin identification, has great promise to enhance surgical precision and improve patient outcomes. Current imaging systems are bulky, expensive, exhibit co-registration errors between visible and NIR frames, and are limited to detecting a single fluorophore. This thesis presents a novel bioinspired multispectral camera capable of imaging and differentiating multiple NIR fluorophores excited with a single excitation source. The camera features a unique spectral filter array with nine passbands in the NIR, in addition to a visible filter for simultaneously capturing RGB information. The filter array is monolithically integrated with an array of vertically stacked photodiodes, allowing sophisticated and spatially efficient multispectral imaging.
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