Based on the CT data surface models can be generated, which in turn can be used as a basis for many other applications. 3D viewers invite users to explore the objects in a low-threshold and playful way and can help explain complex issues via annotations or through embedding in digital stories. Further use in AR or XR applications or gaming experiences is the next logical step, although it requieres further development effort.
The 3D Cipher project wants to focus not only on research questions but also on the visualisation of CT data. Besides screenshots, videos are the simplest and most accessible form of visualisation. Due to the manipulability of the CT data in terms of colour scheme, segmented components and camera positions, a variety of display options are possible.
Animation based on segmented CT data
Focus on the individual components of the M-209 mechanical cipher device
Rotor of a swiss NEMA cipher machine
The colouring of the CT datasets is arbitrary and can be manipulated at will, since the acquisition with X-rays only produces grey values depending on the material. Materials with very low density (i.e. paper) are only detected very poorly or not at all by CT measurements. Therefore the letter plates on Charles Wheatstone's cipher disc could not be detected.
Inv.-Nr.: 1994-99, Image: Deutsches Museum | Konrad Rainer
3D-CT-Visualisation, colourized
