Paper
12 March 2013 Novel calibration procedure for SVBRDF estimation of 3D objects using directional illumination and structured light projection
Jakub F. Krzesłowski, Robert Sitnik, Grzegorz Mączkowski
Author Affiliations +
Proceedings Volume 8650, Three-Dimensional Image Processing (3DIP) and Applications 2013; 86500G (2013) https://doi.org/10.1117/12.2008454
Event: IS&T/SPIE Electronic Imaging, 2013, Burlingame, California, United States
Abstract
Estimation of geometry and reflectance of 3D objects requires that surface geometry is registered together with photometric data. We present a method which combines geometrical camera calibration and photometric calibration into a single procedure utilizing only one calibration target. Using structured light projection and directional illumination, the surface of a 3D object can be registered with an integrated measuring device. To estimate spatial distribution of reflectance parameters, a Spatially Varying Bidirectional Reflectance Distribution Function (SVBRDF) model is used. We also show a 3D image processing method to estimate SVBRDF parameters using an arbitrary defined array of illuminators and algorithms to reconstruct this surface using specialized visualization software. This approach allows for effective measurement of geometry and visual properties of 3D objects represented by a dense point cloud model. It can become a valuable tool for documentation of digital heritage and in industrial computer vision applications.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jakub F. Krzesłowski, Robert Sitnik, and Grzegorz Mączkowski "Novel calibration procedure for SVBRDF estimation of 3D objects using directional illumination and structured light projection", Proc. SPIE 8650, Three-Dimensional Image Processing (3DIP) and Applications 2013, 86500G (12 March 2013); https://doi.org/10.1117/12.2008454
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KEYWORDS
Calibration

Fiber optic illuminators

Cameras

Light sources

Reflectivity

3D image processing

3D modeling

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