Holo3 is a technology transfer center specializing into imaging and optical methods and located in St Louis ( France ). They develop and make available to industries optical ressources on different forms, such as feasibility studies, tailored services with their own equipments or specific measure method supplies.


Among all this activities stand Polymap, a device born from the collaboration between Holo3 and the Institut Charles Sadron ( Strasbourg, France ). It can be used to measure local slopes of a surface, by using deflectrometry principle, in order to reconstruct it in 3D. It also have the capacity, as a result of its high sensibility, to measure prints on the study surface, about the micron size. Furthermore, the measures are done in a short time laps, without any specific preparations to do.

The project presented here follows on an previous internship with the Master CSMI realised in 2015.  The main goal consists of reconstructing, from the slopes obtained by the Polymap device, the associated surface with the Finite Element method. At this task, we can add the possibility to take in account initial conditions,  height mean of the surface for example, to work on an irregular mesh, due to camera deformations, or to exclude automatically areas with non compliant, or even nonexistent, data.


We use Feel++ the flagship software of Cemosis to process the images from Holo3 devices. We provide dedicated tailored software and algorithms to Holo3.


  • Christophe

    Cemosis Director

  • Thomas

    Engineer contracted for the project

  • Pierre

    Holo3 Engineer in charge of the project

  • Vincent

    Cemosis Engineer

  • Jean-Pierre

    Holo3 Director


  • AMIES – Agency Interaction in Mathematics with Business & Society
  • Holo3

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