A Visual Servoing-Based Method for ProCam Systems Calibration
| Autor: | Jeremie Mosnier, Omar Ait Aider, Francois Berry |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Sensors, Vol 13, Iss 10, Pp 13318-13333 (2013) |
| Druh dokumentu: | article |
| ISSN: | 13101331 1424-8220 |
| DOI: | 10.3390/s131013318 |
| Popis: | Projector-camera systems are currently used in a wide field of applications, such as 3D reconstruction and augmented reality, and can provide accurate measurements, depending on the configuration and calibration. Frequently, the calibration task is divided into two steps: camera calibration followed by projector calibration. The latter still poses certain problems that are not easy to solve, such as the difficulty in obtaining a set of 2D–3D points to compute the projection matrix between the projector and the world. Existing methods are either not sufficiently accurate or not flexible. We propose an easy and automatic method to calibrate such systems that consists in projecting a calibration pattern and superimposing it automatically on a known printed pattern. The projected pattern is provided by a virtual camera observing a virtual pattern in an OpenGL model. The projector displays what the virtual camera visualizes. Thus, the projected pattern can be controlled and superimposed on the printed one with the aid of visual servoing. Our experimental results compare favorably with those of other methods considering both usability and accuracy. |
| Databáze: | Directory of Open Access Journals |
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