The color map can be set with multiple parameters like (Red,Green,Blue,Alpha,Iso-Value). The option -vo shows the input DICOM data in a volume renderer (vtkFixedPointVolumeRa圜astMapper). By double clicking the mesh's surface, the corresponding 3D coordinate is printed to the shell. Then -e 0.25 removes all connected objects with less than 250 vertices.īy passing the command line option -v the resulting mesh is visualised in a 3D environment. It is easy understandable with an example: The biggest connected object of the mesh has 1000 vertices. X is a size threshold relative to the connected object with the most vertices. With DicomToMesh, you can remove objects below a certain size by adding the option -e X where X is a floating-point value between 0.0 and 1.0. Remove small objects: The resulting 3D mesh contains often parts which are not of interest, such as for example the screws of the table on which a CT scan of a patient was acquired. Smoothing can be enabled with the argument -s. Smoothing the mesh leads often to a better result. This is visible in the extracted 3D surface. Mesh smoothing: Acquired medical images contain often heavy noise. Reduction can be enabled by the option -r X where X is a floating-point value between 0.0 and 1.0. Reducing the number of polygons, therefore, is a crucial feature. Mesh reduction: The mesh of a medical DICOM image can easily exceed 1 GB of data. In Dicom2Mesh you can specify the iso-value with the parameter -t X, where X is an integer. In CT scans, the iso-value depends on the tissue (density). This threshold is also known as iso-value. As an input, this algorithm requires a threshold which indicates what range of voxel values should be considered. The 3D surface mesh is computed by the marching cubes algorithm.

DicomToMesh works on Linux, OSX and Windows. The supported 3D mesh formats are STL, OBJ and PLY. DicomToMesh is a handy command line tool, which enables the user to automatically create a 3D mesh from a set of 2D DICOM images, a common image format used in medicine.

Dicom viewer osx