Thesis - 3D Camera Color Registration



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SICK's Ranger3 product is a 3D camera built on the principle of laser triangulation. The custom image sensor used in Ranger3 has a pixel array for height detection, but also three pixel rows with high-resolution color data (RGB). Using our standard 3D-geometry and lenses the color data needs to be registered back to the 3D data in order to be able to present a 3D image with color overlay. This can be done using existing information about the target's movement.

The thesis task is to find an efficient way to implement this in the Ranger3 FPGA, so that the device can deliver color in real time registered on the height data. There is existing code to do this color registration off-line in a PC after the data has been collected, but there are several challenges to solve to be able to do it on the fly in the FPGA:

  • Real time registration to select which color profiles that should be combined depending on geometry and object speed
  • Efficient storage of color profiles as the memory resources in the FPGA is limited
  • Efficient implementation of the color registration logic to be able to handle full speed data streams (7000 images/s)


VHDL, Matlab, C++


For more information about the position, contact:

Johan Melander, Head of SW 3D Cameras, +46 706 59 31 45


Charlotte Axelsson, HR Manager, +46 739 20 99 50

Welcome with your application 14th of October at the latest!

SICK is a world-leading supplier of sensors and sensor solutions for industrial applications. We are 11 000 employees in 50 countries and our headquarter is located in Freiburg, Germany. SICK in Linköping is an innovation center for Machine Vision and we are 80 committed employees with a big interest in image processing and visualization. For more than 35 years, our team at SICK Linköping has successfully developed and delivered software for technically leading products within the field of 2D and 3D vision, as well as system solutions for i.e. robot guidance and quality control.

At SICK in Linköping, we are very proud of being a healthy and attractive workplace. For many years, we have been elected as one of the best workplaces in Sweden according to the survey Great Place to Work, the latest award is from 2021. We work actively to reduce our climate footprint and we are active in various ways to contribute to the society and to increase diversity at our workplace.


Responsible recruiter

Charlotte Axelsson


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Charlotte Axelsson
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