Title: Real-time geometric lens distortion correction using a graphics processing unit
Authors: Van der Jeught, Sam ×
Buytaert, Jan
Dirckx, Joris J. J #
Issue Date: Feb-2012
Publisher: The Society
Series Title: Optical Engineering vol:51 issue:2 pages:-
Article number: 027002
Abstract: Optical imaging systems often suffer from distortion artifacts which impose important limitations on the direct interpretation of the images. It is possible to correct for these aberrations through image processing, but due to their calculation-intensive nature, the required corrections are typically performed offline. However, with image-based applications that operate interactively, real-time correction of geometric distortion artifacts can be vital. We propose a new method to generate undistorted images by implementing the required distortion correction algorithm on a commercial graphics processing unit (GPU), distributing the necessary calculations to many stream processors that operate in parallel. The proposed technique is not limited to affine lens distortions but allows for the correction of arbitrary geometric image distortion artifacts through individual pixel resampling at display rates of more than 30 frames per second for fully processed images (1024 x 768 pixels). Our method enables real-time GPU-based geometric lens distortion correction without the need for additional digital image processing hardware. (c) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.OE.51.2.027002]
ISSN: 0091-3286
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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