1. DICOM Standards Committee 2010-04-13 Bordeaux Workitem - Proposal “Optical Surface Scan IOD” Christian Dressler christian.dressler@iccas.de christian.dressler@iccas.de

2. Working Principle  The deformation of structured light, such as a known pattern is captured and a point cloud is calculated

3. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Use cases  Use cases structured by content of publications

4. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Interested Surface Scanner Manufacturers 4  FARO Technologies Inc., USA  GOM mbH, Germany  Konica-Minolta, Germany  RSI GmbH, Germany  Steinbichler Optotechnik GmbH, Germany  ViALUX GmbH, Germany  Vitro Lasertechnologie AG, Germany

5. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Open Issues  Should DICOM describe SOP classes before and/or after post-processing? Scanner Real 3D object Post-processing- Software PACS Digital 3D object Raw data Internal Post-processing- Raw data: Point Cloud, Textures, Device Parameters Raw data

6. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Reconstruction with Paraview  Reconstruction from point cloud with uv-mapping and bitmap with arbitrary application

7. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Reconstruction with Paraview  Point cloud contains x,y,z,u and v values  Here: ascii file, semicolon separated

8. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Reconstruction with Paraview  Importing the point cloud

9. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Reconstruction with Paraview  Assigning the columns to coordinate system

10. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Reconstruction with Paraview  Display the point cloud

11. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Reconstruction with Paraview  Calculate mesh (multiple algorithms and parameters)

12. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Reconstruction with Paraview  Apply texture according to uv map

13. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Reconstruction with Paraview  Smooth surface (multiple algorithms and parameters)

14. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 What is this all about?  Two types which contain different information Scanner External Post-processing PACS Point clouds, surface meshes, textures, device-specific attributes, 3D graphics

15. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Point clouds  No support of uv coordinates

16. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Vectors (only for xyz, not for uv?)

17. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Photo

18. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Open Issues  Is there enough commonality between optical and mechanical scanners to use one IOD for both?  How to store the normal, which defines inside/outside?  The origin of the coordinate system of the bitmap has to be defined.  Mapping: uv-mapping and/or point values over LUT?  Define two different SOPs for raw data/3D model?  Support of multiple textures per object?  How to store multiple clouds? Only same coordinate system allowed?

19. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Accomplishment  New modality (Surface Scanner)  Use of existing modules (fotos, point clouds, surfaces)  New modules (Scanner device attributes)  New IOD(s)  New SOP(s) Scanner External Post-processing PACS Point clouds, surface meshes, textures, device-specific attributes, 3D graphics

20. Workitem Proposal „Optical Scanner“, DSC, Bordeaux 2010-04-13 Time Schedule  Reporting current workiten state to scanner and 3d software manufacturers and to related DICOM WGs  First meeting with interested companies at WG 24 meeting at CARS in Geneva in July 2010

21. T hank you for your attention! Acknowledgements The Innovation Center Computer Assisted Surgery (ICCAS) at the Faculty of Medicine at the University of Leipzig is funded by the German Federal Ministry for Education and Research (BMBF) and the Saxon Ministry of Science and the Fine Arts (SMWK) in the scope of the initiative “Unternehmen Region” with the grant numbers 03 ZIK 031 and 03 ZIK 032. It is also sponsored by funds of the European Regional Development Fund (ERDF) and the state of Saxony within the frame of measures to support the technology sector.