Image processing laboratory

In the image processing laboratory, a variety of experimental setups can be created and used to study questions about optical metrology and machine vision.

In addition to a platform for optical setups, a conveyor belt for line by line scanning sensors (line scan cameras) and an elevating platform for the vertical transport of independent objects for 4-sided inspection are available. Both of these transport devices are essential when the controlled movement of an object to be measured is necessary, for example, when implementing the light-section method or when performing realistic tests of methods for inline inspection under real-time conditions.

In addition, a highly accurate calibration field as measured with theodolite is available for 3D camera calibration.

The equipment includes:


  • Cameras: CDD area scan cameras, cameras (color and B&W), high-speed CMOS cameras with non-linear characteristics and a high dynamic range (120 dB), color line scan cameras with beam-splitting technology (3 x 2048 pixels)
  • Interfaces: GigE, IEEE1394, Camera Link, USB
  • Optics: Lenses with 6.5 to 120 mm focal lengths, Nikon C-mount and F- mount adapters, various (very narrow band) filters encompassing the visible and NIR ranges
  • Lighting: various, partly special constructions with LED light sources, HQI studio light with light shapers, halogen lighting with fiber optic beam former, light distributor with semi-transparent mirror, various lasers, thermal and NIR infrared lighting
  • Trigger unit: autonomous trigger sensor as well as displacement sensors that are permanently mounted to the transport devices and have various level and frequency converters that adapt to camera requirements
  • Measurement technology: Multimeters and oscilloscopes for the analysis of complex trigger events, laser meter, digital thermometer