학술논문

Benefits Of Multi-Exposure For Hyperspectral Imaging
Document Type
Conference
Source
2022 12th Workshop on Hyperspectral Imaging and Signal Processing: Evolution in Remote Sensing (WHISPERS) Hyperspectral Imaging and Signal Processing: Evolution in Remote Sensing (WHISPERS), 2022 12th Workshop on. :1-5 Sep, 2022
Subject
Signal Processing and Analysis
Reflectivity
Filtering
Lighting
Signal processing
Light emitting diodes
Spatial resolution
Remote sensing
Hyperspectral
multi-exposure
spectral variability
discrimination power
Language
ISSN
2158-6276
Abstract
This paper presents the impact of a multi-exposure method for a hyperspectral imaging camera in the visual-near infrared range. Multi-exposure helps deal with the dynamic range requirements coming from uneven scene illumination, imbalanced light source energy distribution per band and diverse object reflectivity levels. We show the benefits of applying multi-exposure for different light sources (halogen and LED) and varied scene types at the application side. Our results show that improved SNR and decreased spectral variability are achieved. This results in increased discrimination capacity at application level, with increases of up to 10% in the mean classification accuracy.