File(s) under permanent embargo
Exposure adjustment for hyperspectral cameras
conference contribution
posted on 2015-01-01, 00:00 authored by Ahmed Sohaib, Antonio Robles-KellyAntonio Robles-KellyIn this paper we present a simple method to adjust the exposure of a hyper-spectral camera. As hyper-spectral cameras capture images over multiple wavelength-indexed bands, exposure control techniques used for tri-chromatic sensors do not often extend to hyper-spectral imagers. Here, we aim at estimating the exposure time for every wavelength channel by capturing an initial view of the scene. We then apply contrast adjustment techniques to this view of the scene so as to recover a reference cumulative distribution function (CDF) of the image brightness at each band. This CDF can then are used to calculate the new exposure time for every wavelength channel. We illustrate the utility of our method for exposure control and explore its stability with respect to both, a uniform and a Gaussian cumulative distribution functions.
History
Event
Digital Image Computing: Techniques and Applications. International Conference (2015 : Adelaide, South Australia)Pagination
329 - 335Publisher
IEEELocation
Adelaide, South AustraliaPlace of publication
Piscataway, N.J.Publisher DOI
Start date
2015-11-23End date
2015-11-25ISBN-13
9781467367950Language
engPublication classification
E1.1 Full written paper - refereedCopyright notice
2015, IEEETitle of proceedings
DICTA 2015 : Proceedings of the International Conference on Digital Image Computing: Techniques and ApplicationsUsage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC