A Mathematical Model and Calibration Procedure for Galvanometric Laser Scanning Systems
Laser galvanometric scanning systems are commonly used in various fields such as three dimensional scanning,
medical imaging, material processing, measurement devices and laser display systems. The systems of such kind
suffer from distortions. On top of that they do not have a center of projection, which makes it impossible to use
common projector calibration procedures. The paper presents a novel mathematical model to predict the image
distortions caused by galvanometric mirror scanning systems. In addition, we describe a calibration procedure
for recovering its intrinsic and extrinsic parameters.
Projects
Gordon Wetzstein, Ivo Ihrke, Wolfgang Heidrich
In: International Journal of Computer Vision (IJCV).
Go to project listIn: International Journal of Computer Vision (IJCV).
Abstract
Photography has been striving to capture an ever increasing
amount of visual information in a single image. Digital
sensors, however, are limited to recording a small subset of
the desired information at each pixel. A common approach to
overcoming the limitations of sensing hardware is the optical
multiplexing of high-dimensional data into a photograph. While
this is a well-studied topic for imaging with color filter
arrays, we develop a mathematical framework that generalizes
multiplexed imaging to all dimensions of the plenoptic
function. This framework unifies a wide variety of existing
approaches to analyze and reconstruct multiplexed data in
either the spatial or the frequency domain. We demonstrate
many practical applications of our framework including
high-quality light field reconstruction, the first comparative
noise analysis of light field attenuation masks, and an
analysis of aliasing in multiplexing applications.
Project Page Bibtex
@article{Wetzstein:PlenopticMultiplexing:2012,
title={{On Plenoptic Multiplexing and Reconstruction}},
author={Gordon Wetzstein and Ivo Ihrke and Wolfgang Heidrich},
year={2013},
volume = 101,
number = 2,
year = {2013},
pages = {384--400},
}
title={{On Plenoptic Multiplexing and Reconstruction}},
author={Gordon Wetzstein and Ivo Ihrke and Wolfgang Heidrich},
year={2013},
volume = 101,
number = 2,
year = {2013},
pages = {384--400},
}