Conference paper
Modeling the Anisotropic Reflectance of a Surface with Microstructure Engineered to Obtain Visible Contrast after Rotation
Department of Applied Mathematics and Computer Science, Technical University of Denmark1
Visual Computing, Department of Applied Mathematics and Computer Science, Technical University of Denmark2
Department of Mechanical Engineering, Technical University of Denmark3
Manufacturing Engineering, Department of Mechanical Engineering, Technical University of Denmark4
Engineering of surface structure to obtain specific anisotropic reflectance properties has interesting applications in large scale production of plastic items. In recent work, surface structure has been engineered to obtain visible reflectance contrast when observing a surface before and after rotating it 90 degrees around its normal axis.
We build an analytic anisotropic reflectance model based on the microstructure engineered to obtain such contrast. Using our model to render synthetic images, we predict the above mentioned contrasts and compare our predictions with the measurements reported in previous work. The benefit of an analytical model like the one we provide is its potential to be used in computer vision for estimating the quality of a surface sample.
The quality of a sample is indicated by the resemblance of camera-based contrast measurements with contrasts predicted for an idealized surface structure. Our predictive model is also useful in optimization of the microstructure configuration, where the objective for example could be to maximize reflectance contrast.
Language: | English |
---|---|
Publisher: | IEEE |
Year: | 2017 |
Pages: | 159-165 |
Proceedings: | ICCV 2017 International Conference on Computer Vision |
ISBN: | 1538610345 , 1538610353 , 9781538610343 and 9781538610350 |
ISSN: | 24739944 |
Types: | Conference paper |
DOI: | 10.1109/ICCVW.2017.27 |
ORCIDs: | Luongo, Andrea , Falster, Viggo , Regi, Francesco , Zhang, Yang , Tosello, Guido , Aanæs, Henrik and Frisvad, Jeppe Revall |
Microstructure Optical surface waves Predictive models Rough surfaces Surface roughness Surface treatment Surface waves analytic anisotropic reflectance model analytical model anisotropic reflectance modeling camera-based contrast measurements computer vision geophysical image processing microstructure configuration normal axis plastic items predictive model reflectivity rendering (computer graphics) specific anisotropic reflectance properties synthetic image rendering visible contrast visible reflectance contrast