3D camera assists robots on production line
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The Ensenso camera integrates two global shutter CMOS sensors with WVGA resolution together with an infrared pattern projector. It projects a random pattern of dots onto the object to be captured, allowing structures that are not visible or only faintly visible on the surface to be enhanced or highlighted.
The object is then captured by the two image sensors in accordance with the stereo vision principle and its 3D coordinates are reconstructed or calculated for each and every pixel using geometric relations based on the triangulation principle.
This means that, even if parts with a relatively monotone surface are placed in the bin, a virtually seamless and detailed 3D image of the entire surface can be generated without additional technical effort. The camera is designed for working distances of 260 mm to 1,400 mm and for variable picture fields.
The available focal lengths of 3.6 to 16 mm can cover a wide range of distances and sizes. The camera module comes with a USB connection and will soon also be available with a GigE connection, it fits in a 150x45x45mm enclosure.
The Ensenso is ready for immediate use and delivers 3D data out of the box. This means it can be installed straight away. The robots can be calibrated to work with the camera using a calibration plate mounted on the robot’s arm. The images captured can be analyzed by all standard machine vision programs, such as Halcon.
Visit IDS Imaging Development Systems at www.ids-imaging.de
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