Title:
|
Dynamic Range Extension of a SPAD Imager Using Non-Uniformity Correction Techniques
|
Author:
|
Vilella, Eva; García, José; Alonso, Oscar; Diéguez, Angel
|
Other authors:
|
Universitat Politècnica de Catalunya. Institut de Ciències Fotòniques |
Abstract:
|
The extraordinary sensitivity of single-photon avalanche diodes (SPADs) makes these devices the ideal option for vision systems aimed at low-light applications. Nevertheless, there exist large dark count rate and photon detection probability non-uniformities, which reduce the dynamic range of the detector. As a result, the capability to create image contrast is severely damaged or even lost. This paper presents the implementation of a correction algorithm to compensate for the mentioned non-uniformities and thus extend the contrast of the generated images. To demonstrate its efficiency, the proposed technique is applied to real images obtained with a fabricated SPAD image sensor. An increase of more than 3 b of contrast is obtained. |
Abstract:
|
Peer Reviewed |
Subject(s):
|
-Àrees temàtiques de la UPC::Física -Image processing -SPAD -Fotons |
Rights:
|
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type:
|
Article - Submitted version Article |
Published by:
|
IEEE
|
Share:
|
|