The 3d Objects

The basic concept of the 3d scenes in http://www.mevislab.de/MeVisLab and also in the METK is OpenInventor. So all structures are stored in single OpenInventor files. The METKManager creates automatically OpenInventor files for structures, that haven't one. After the first creation, the files are only loaded. That speeds up the loading process as well as the visualization process where the user can fast enable and disable the structures.

The basis of all inventor files is a segmentation mask. The METKManager uses an internal GenerateIVFile module to create all inventor files from their segmentation masks. If there are multiple (non overlapping) objects are stored in one segmentation mask, each structure has additionally an ObjectValue (objID Image ObjectValue) to identify its part of the segmentation mask. This (now called single coded segmentation mask) masks are only used by HepaVision.