High performance, low latency 3D sensor network for live full object reconstruction (Conference Presentation)

Christoph Munkelt; Matthias Heinze; Tobias Zimmermann; Peter Kühmstedt

doi:10.1117/12.2305332

15 May 2018 High performance, low latency 3D sensor network for live full object reconstruction (Conference Presentation)

Christoph Munkelt, Matthias Heinze, Tobias Zimmermann, Peter Kühmstedt

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Proceedings Volume 10667, Dimensional Optical Metrology and Inspection for Practical Applications VII; 1066706 (2018) https://doi.org/10.1117/12.2305332
Event: SPIE Commercial + Scientific Sensing and Imaging, 2018, Orlando, FL, United States

Abstract

With recent advances in high speed 3D measurement sensor technologies, focus changes from merely acquiring 3D sensor data fast. An advanced application area is to fusion multiple sensor streams into a complete object representation without occlusions. Even more challenging is how to process the high speed 3D streams online, instead of the current offline processing approaches. To this end we combine our cost-effective GOBO slide-based pattern projector (GOes Before Optics) with commodity GigE vision network sensors to a multi sensor system for complete online monitoring capabilities. The targeted use-case has to deal with partial occlusions and low latency requirements for machine control. Specifically, three active NIR stereo 3D sensors are aggregated through a 10Gb-Ethernet-switch and processed by a single GPU assisted workstation. Thus a combined continuous data-stream of up to 78 million 3D points is calculated online per second out of a raw 2D data-stream of up to approximately 1250 Mb/s. The systems latency for simpler 3D analysis task, like movement tracking, is ≤ 200 ms.

Conference Presentation

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Christoph Munkelt, Matthias Heinze, Tobias Zimmermann, and Peter Kühmstedt "High performance, low latency 3D sensor network for live full object reconstruction (Conference Presentation)", Proc. SPIE 10667, Dimensional Optical Metrology and Inspection for Practical Applications VII, 1066706 (15 May 2018); https://doi.org/10.1117/12.2305332

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KEYWORDS

3D metrology

Sensor networks

Sensors

3D acquisition

Motion analysis

Near infrared

Projection systems

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