| Autor: |
Volker Jetter, René Müller |
| Rok vydání: |
1996 |
| Zdroj: |
Conference on Lasers and Electro-Optics Europe. |
| Popis: |
Three dimensional inspection techniques for industrial applications are normally based on either photogrammetric, triangulation or time-of-flight techniques. Combining the latter with an optical demodulation method offers the possibility to obtain 2D and 3D information of a scene. The target is illuminated by a high frequency intensity modulated laser beam. An imaging system forms an intermediate image inside an electro-optic modulator and finally a CCD-camera captures the 3D-image of the object where the intensity of each camera pixel corresponds to the phase shift and therefore the distance between the illuminated object pixel and the optical demodulator. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
