Hello Claudia, Which volume rendering approach are you using, software rendering or GPU volume rendering?
In the volume rendering approaches offered by MITK, there is always some kind of interpolation involved. There are a number of ways to control the quality / resolution of the rendered image. In particular, you can specify the "sample distance" which defines how many "rays" are cast through the scene for one pixel to be rendered. Also, you can specify the interpolation function to use via vtkVolumeProperty (nearest or linear). The implementation looks a bit different for software rendering (mitk::VolumeDataVtkMapper3D) and GPU rendering (mitk::GPUVolumeMapper3D). The mentioned properties are currently hard-coded in these classes, but it should be straightforward to create properties to control them from outside if this is what you need. For 2D rendering, you can turn texture interpolation on or off by setting the bool property "texture interpolation" on the data node of the image to true or false. Also, you can define the interpolation method to use when resampling oblique planes from a volume by setting the mitk::VtkResliceInterplationProperty on the data node (this is mostly relevant for oblique planes though). Regards, Mathias > -----Original Message----- > From: Claudia Hänel [mailto:[email protected]] > Sent: Tuesday, May 24, 2011 1:19 PM > To: [email protected] > Subject: [mitk-users] Disable interpolation of volume rendering > > Hi, > > is there a possibility to turn off the interpolation of the volume in an > QMitkStdMultiWidget? Or I need a way to turn on interpolation on the > orthogonal views, too. My problem is that some voxels are missing in the > volume visualization that are visible in the orthogonal views. Because of the > interpolation single voxels aren't visible. Is there a node property prepared > for my concerns? > > Regards, > Claudia ------------------------------------------------------------------------------ vRanger cuts backup time in half-while increasing security. With the market-leading solution for virtual backup and recovery, you get blazing-fast, flexible, and affordable data protection. Download your free trial now. http://p.sf.net/sfu/quest-d2dcopy1 _______________________________________________ mitk-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mitk-users
