nokra and VRmagic Imaging cooperate in product development

The Aachen-based measuring and inspection technology specialist Nokra and the camera manufacturer VRmagic Imaging from Mannheim have jointly developed a technology platform for laser triangulation processes.

Measuring technology specialist Nokra and VRmagic Imaging cooperate in product development

Mannheim/Aachen. The Aachen-based measuring and inspection
technology specialist Nokra and the camera manufacturer VRmagic
Imaging from Mannheim have jointly developed a technology platform for
laser triangulation processes. The product development successfully
incorporates Nokra expertise in optimization of 3D laser measurement
technology on the one hand, and on the other the many years of
experience of the camera manufacturer VRmagic in the area of technical
implementation.


Reliable and fast evaluation of the laser line
Algorithm design for laser line extraction is at the heart of the cooperation:
as an expert for measurement solutions in the steel, aluminum and
automotive industries and the area of glass processing, Nokra develops
algorithms which optimize highly precise evaluation of the laser line on a
wide range of different surfaces. The processes are based among other
things on calculation of the center of gravity, and VRmagic implements
them in speed-optimized and parameterizable form on the FPGA of the
sensor.


Synchronous output of measurement and image information
In addition to output of the laser line and 3D image, the sensor also
supplies the brightness values of the laser line, a so-called intensity
image. This image data permits evaluation of the surface quality, for
example. In addition to geometrical detection of production items, the
gray-value image is also used in quality assurance applications – in the
wood or metal processing industries, for example – for inspection of the
material surface for color flaws and inclusions which cannot be detected
with 3D sensors. The 3D measured data and 2D image data are recorded
at the same time and from exactly the same perspective – this provides
optimum preconditions for combined evaluation. In the context of Industry
4.0, 2D image acquisition can be used for identification of workpieces on
the basis of bar codes.


When developing new system solutions, Nokra will in future use the new
technology platform in combination with proprietary firmware optimized for
Nokra measurement technology which will allow additional relevant
measurement information to be transmitted. VRmagic Imaging has
developed firmware for the platform with a GigE Vision interface which is
optimized for image processing tasks.


About Nokra
Nokra Optische Prüftechnik und Automation GmbH was founded in 1991
as a spin-off from Fraunhofer Institute for Laser Technology ILT and
Fraunhofer Institute for Production Technology IPT in Aachen. As a
medium-sized technology company, nokra develops, produces and
distributes laser based thickness and flatness measurement devices for
automatic inline inspection of geometric properties of products in the
metal, automotive and glass industry. Products to be inspected are rolled
products (coils, plates, profiles) in the steel, aluminum and non-ferrous
metal industry, large-diameter pipes as well as vehicle components, e.g.
camshafts and crankshafts, axle supports, windscreens.

About VRmagic Imaging
The German-based camera manufacturer VRmagic Imaging develops,
manufactures and markets both ready-to-use machine vision products
and individually configurable OEM camera components. VRmagic
Imaging GmbH is a subsidiary of VRmagic Holding AG based in
Mannheim, Germany. Founded in 2001, the high-tech company VRmagic
is world leader with virtual reality and augmented reality simulators for
medical training in ophthalmology. Since the introduction of the first USB
2.0 camera to the market in 2003, camera systems for computer vision
have been a second business division, leading to the establishment of
VRmagic Imaging GmbH in 2016.


More information at www.vrmagic-imaging.de

Please find the link to download this news here.