TY  - JOUR
ID  - 20496821
AU  - MacKinnon, David
AU  - Beraldin, Jean-Angelo
AU  - Cournoyer, Luc
AU  - Picard, Michel
AU  - Blais, Francois
T1  - Lateral resolution challenges for triangulation-based three-dimensional imaging systems
JO  - Optical Engineering
VL  - 51
IS  - 2
PY  - 2012
KW  - lateral resolution
KW  - modeling
KW  - system response
KW  - 3D imaging system
KW  - triangulation-based 3D imaging system
KW  - laser imaging system
N2  - Lateral spatial resolution is a particularly challenging concept to quantify in triangulation-based 3D imaging systems. In this paper, we present these challenges, then describe an artifact-based methodology for evaluating the lateral resolution of a triangulation-based 3D imaging system that uses laser spots or laser lines. In particular, the response of a 3D imaging system to a spatial discontinuity (step edge) has traditionally been modelled as a first-order linear system. We model the response of a triangulation-based laser imaging system to a spatial step edge from first principles and demonstrate that the response should be modelled as a non-linear system. This model is then used as a basis for evaluating the lateral (structural) resolution of a triangulation-based laser imaging system.
DO  - http://dx.doi.org/10.1117/1.OE.51.2.021111
U3  - Measurement Science and Standards
U3  - Science des mesures et étalons
U3  - Information and Communication Technologies
U3  - Technologies de l'information et des communications
U3  - National Research Council Canada
U3  - Conseil national de recherches Canada
ER  -