The visitor as a 3D point cloud

Fraunhofer IOF at the Control

26.04.2019, 18:24

The visitor as a 3D point cloud

Fraunhofer IOF presents a 3D sensor that realizes both real-time data acquisition with low latency and real-time data processing. This means that 3D measurement data is available immediately after image acquisition.

Three-dimensional mirror image: The system captures highly dynamic scenes as a 3D point cloud. © Fraunhofer IOF

Industrial inline quality control and process control require sensor technologies that are characterized above all by very short acquisition times and very low latency. At the Fraunhofer Institute for Applied Optics and Precision Engineering IOF in Jena, a new 3D sensor has been developed based on fast projection and detection of patterns, which realizes both real-time data acquisition with low latency (< 120 ms) and real-time data processing.

This means that 3D measurement data is available immediately after the image is captured, which can be used to evaluate geometric data, analyze the position or carry out a quality check in the form of a target/actual comparison, depending on the application. The measurement system shown demonstrates the speed of data acquisition by capturing the visitor standing in front of the device as a 3D point cloud and visualizing the measurement data as a "three-dimensional mirror image" of the visitor in real time.

The LED-based projection technology measures in the near infrared (NIR) at a wavelength of 850 nanometers and is therefore invisible to humans. The irritation-free measurement data acquisition allows people to actively participate in the quality assurance process. This also means that the field of application of the measuring system is not limited to industrial quality control, but is particularly suitable for the metrological 3D recording of scenes in which people interact with machines and products.

An additional color camera allows color information to be obtained in parallel and assigned to the 3D data with pinpoint accuracy. The measuring system can therefore also be used to capture posture, gestures and facial expressions for human-machine interaction. as

Hall 6, Stand 6301

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