Fast automatic registration of range images from 3D imaging systems using sphere targets
| Autor: | Christoph J. Witzgall, Geraldine S. Cheok, Marek Franaszek |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Matching (graph theory)
Computer science business.industry Cognitive neuroscience of visual object recognition Sphere fitting Building and Construction Laser law.invention Lidar Control and Systems Engineering law Range (statistics) SPHERES Computer vision Artificial intelligence business Civil and Structural Engineering Three dimensional model |
| Zdroj: | Automation in Construction. 18:265-274 |
| ISSN: | 0926-5805 |
| DOI: | 10.1016/j.autcon.2008.08.003 |
| Popis: | The use of 3D imaging systems (e.g., laser scanners) in construction has grown significantly in the past decade. Range images acquired with such systems often require registration. This paper describes an automatic method to rapidly locate spheres and perform a registration based on three pairs of matching points (centers of fitted spheres) in two range images. The proposed method is directly applicable for regularly gridded datasets obtained with instruments that are typically used for construction applications and whose maximum ranges are greater than 50 m. A lab was scanned from two locations at three different scan densities. Four spheres were located in the lab, and the total number of points hitting the four spheres was a small fraction ( 6 and 3.4 × 10 6 points is obtained in less than 30 s. At the medium scan density, two range images with 1.6 × 10 6 and 0.8 × 10 6 points can be registered in less than 2 s. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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