Title :
A physical simulation approach for active photogrammetric 3D measurement systems
Author :
Von Enzberg, Sebastian ; Lilienblum, Erik ; Michaelis, Bernd
Author_Institution :
Inst. for Electron., Signal Process. & Commun. (IESK), Otto-von-Guericke-Univ. Magdeburg, Magdeburg, Germany
Abstract :
A physically based model of camera, sensor, light source, object geometry and surface characteristics in conjunction with the path tracing algorithm is suggested and enhanced to allow for accurate simulation of active photogrammetric 3d measurement systems. This allows for effects to be simulated which are not inherent to common simulation approaches. The theory is based on the rendering and measurement equations which are solved using Monte Carlo methods. The minimal number of samples to achieve an accurate physical simulation can be adapted for each pixel by estimating the residual standard deviation of each calculated gray scale value.
Keywords :
Monte Carlo methods; cameras; geometry; image sensors; optical variables measurement; photogrammetry; rendering (computer graphics); Monte Carlo method; active photogrammetric 3D measurement system; camera; gray scale value; light source; measurement equation; object geometry; path tracing algorithm; physical simulation approach; rendering equation; residual standard deviation; simulation approach; surface characteristics; Cameras; Computational modeling; Mathematical model; Monte Carlo methods; Noise; Rendering (computer graphics); Three dimensional displays;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC), 2011 IEEE
Conference_Location :
Binjiang
Print_ISBN :
978-1-4244-7933-7
DOI :
10.1109/IMTC.2011.5944110