Multispectral camera as spatio-spectrophotometer under uncontrolled illumination.

Clicks: 211
ID: 77057
2019
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Abstract
Multispectral constancy enables the illuminant invariant representation of multi-spectral data. This article proposes an experimental investigation of multispectral constancy through the use of multispectral camera as a spectrophotometer for the reconstruction of surface reflectance. Three images with varying illuminations are captured and the spectra of material surfaces is reconstructed. The acquired images are transformed into canonical representation through the use of diagonal transform and spectral adaptation transform. Experimental results show that use of multispectral constancy is beneficial for both filter-wheel and snapshot multi-spectral cameras. The proposed concept is robust to errors in illuminant estimation and is able to perform well with linear spectral reconstruction method. This work makes us one step closer to the use of multispectral imaging for computer vision.
Reference Key
khan2019multispectraloptics Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Khan, Haris Ahmad;Thomas, Jean-Baptiste;Hardeberg, Jon Yngve;Laligant, Olivier;
Journal Optics express
Year 2019
DOI
10.1364/OE.27.001051
URL
Keywords Keywords not found

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