Morphos Development of a measuring system for verifying existing models from combustion engine industry

  • Gruber, Michael, (Co-Investigator (CoI))
  • Gaich, Andreas, (Co-Investigator (CoI))

Project: Research project

Project Details


An apparatus for generating high resolution digital images using a translationally
moved CCD-line-camera was realized. With it, objects which have been given a
special texture can be imaged comfortably. By tilting the camera and the different
perspectives that result from this, it is possible to perform a 3D reconstruction of
surface points. The measured object can be turned automatically in the scanning
space, which makes it possible to get views from all sides. This requires an exact
registration of the individual views in relation to each other. A surface description
which clearly reproduces the object is derived from the 3D point cloud that results from
the recorded views just mentioned. The accuracy reached is 0.1 mm for the RMS-error
in space and 0.1( for the determination of the object rotation. The scanning volume is
500(150(150 mm3. This results in a relative accuracy of 1:5000. Clearly, the
requirement of 1:1000 has been reached. The complete reconstruction of a complex
object such as e.g. a water cooling jacket with a length of 500 mm takes about one
week, where one day of user interaction is required for making the recordings and
about one hour is needed for the preparation of the reconstructed point data for the
surface reconstruction. What remained unsolved in this project is the problem of
generating a fully closed surface for very complex objects without a significant amount
of user int...(this text has been cut automatically)
Effective start/end date1/01/9631/01/97