Characterizing the dynamic range of a hyperspectral camera

Torbjørn Skauli

doi:10.1117/12.2588305

12 April 2021 Characterizing the dynamic range of a hyperspectral camera

Torbjørn Skauli

Proceedings Volume 11727, Algorithms, Technologies, and Applications for Multispectral and Hyperspectral Imaging XXVII; 117270D (2021) https://doi.org/10.1117/12.2588305
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

The dynamic range of a hyperspectral camera can have a strong impact on the quality and integrity of the collected spectra. For the image sensor chip alone, the dynamic range is the ratio between the saturation level and the noise floor, set by full well capacity and readout noise respectively. In a complete hyperspectral camera, the raw signal level varies with the wavelength-dependent detector quantum efficiency, optics transmission, and illumination, as well as with the optical bandwidth. In practice, different parts of the spectrum will tend to have the highest or lowest signal level, and will most easily reach the saturation level or noise floor, respectively. It is shown that to define a dynamic range for a hyperspectral camera in the reflective spectral domain, the wavelength dependence of the camera light collection efficiency must be taken into account. A more application-oriented dynamic range can be defined by additionally assuming a shape of the illumination spectrum representative of a particular application.

Conference Presentation

Citation Download Citation

Torbjørn Skauli "Characterizing the dynamic range of a hyperspectral camera", Proc. SPIE 11727, Algorithms, Technologies, and Applications for Multispectral and Hyperspectral Imaging XXVII, 117270D (12 April 2021); https://doi.org/10.1117/12.2588305

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available