![]() ![]() The GigE Vision standard allows high speed image data transmission in real time over distances up to 100 metres using standard Ethernet Cat 6 cables. GigE Vision cameras are required, since the positioning of the cameras will vary depending on the particular setting and they may be located at a significant distance from the control system. With OmniCal being used in a wide range of settings it is essential that the imaging system includes high quality optics with reliable behaviour with regards to focal length and distortion variance. ![]() To prevent any areas of the scene being occluded, the sequences of patterns are generated from projectors in a variety of locations. The cameras are used to capture a short series of images of structured light patterns projected onto the scene to be calibrated. ![]() Although stereo imaging for point cloud generation is a well-established machine vision application, there were some very specific technical requirements for OmniCal that STEMMER IMAGING was able to fulfil. ![]() Not only that, it enables a significant new feature with the correction of differences between 3D models and the real world surfaces.ĭisguise turned to STEMMER IMAGING for supply of the imaging components for OmniCal. The OmniCal system enables higher quality calibration than a manually operated system. We can do calibrations in significantly less time because the point cloud generated can be used for all the projectors, enabling parallel calibrations rather than lots of individual manual processes. However, the machine-vision-based OmniCal system is completely scalable. The manual process to calibrate a set of projectors and surfaces typically takes minutes per projector and has a roughly linear scale, meaning the larger the number of projectors the more people or more time would be needed to complete it. Technicians working on the projections are competing for access to the set with a host of other personnel working on different aspects of the production. Disguise software actually includes a manual calibration system, which works very well, but time is a critical factor during a live show set up. ![]()
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January 2023
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