Abstract
The measurement of a bidirectional reflectance distribution function (BRDF) requires a purpose-built instrument. We ease this requirement by presenting a relative method for measuring a BRDF using a multipurpose robotic arm. Our focus is on the alignment of the system to perform accurate camera positioning and orientation. We use a six degrees of freedom robotic arm to move a camera on a hemisphere surrounding a flat material sample. Point-like light sources, fixed on a quarter circle arc, sequentially illuminate the sample from different directions. The resulting images are used to reconstruct the material BRDF. We limit ourselves to tristimulus (RGB) isotropic BRDF acquisition.
Original language | English |
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Title of host publication | Scandinavian Conference on Image Analysis |
Volume | 11482 |
Publisher | Springer |
Publication date | 2019 |
Pages | 184-196 |
ISBN (Print) | 978-3-030-20204-0 |
DOIs | |
Publication status | Published - 2019 |
Event | 2019 Scandinavian Conference on Image Analysis - Norrköpings Visualisering Center, Norrköping, Sweden Duration: 11 Jun 2019 → 13 Jun 2019 http://ssba.org.se/scia2019/ |
Conference
Conference | 2019 Scandinavian Conference on Image Analysis |
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Location | Norrköpings Visualisering Center |
Country/Territory | Sweden |
City | Norrköping |
Period | 11/06/2019 → 13/06/2019 |
Internet address |
Series | Lecture Notes in Computer Science |
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Volume | 11482 |
ISSN | 0302-9743 |
Keywords
- Robot arm
- BRDF
- Camera pose estimation