# 3D visualisation techniques from labelMap

**URL:** <https://discourse.slicer.org/t/3d-visualisation-techniques-from-labelmap/11002>\
**Category:** Development\
**Created:** [April 5, 2020, 5:50pm UTC](https://discourse.slicer.org/t/3d-visualisation-techniques-from-labelmap/11002 "2020-04-05T17:50:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![loubna](https://avatars.discourse-cdn.com/v4/letter/l/cab0a1/32.png) [@loubna](https://discourse.slicer.org/u/loubna)\
**Post date:** [April 5, 2020, 5:50pm UTC](https://discourse.slicer.org/t/3d-visualisation-techniques-from-labelmap/11002/1 "2020-04-05T17:50:17Z")

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Hi,

Do you know some 3d visualisation methods to convert a label Map to 3d closed surface apart marching cubes. I need some suggestions according to your experiences please. Can you tell me some ideas or techniques ?

Thank’s in advance

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [April 6, 2020, 3:47am UTC](https://discourse.slicer.org/t/3d-visualisation-techniques-from-labelmap/11002/2 "2020-04-06T03:47:13Z")

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I would recommend to import your labelmap into a segmentation node. Segmentation can be displayed directly in 3D (closed surface is automatically generated and smoothed and kept up-to-date if the labelmap is edited). Slicer uses VTK’s flying edge method, which is a faster, parallelized isosurface extraction method; followed by smoothing (using vtkWindowedSincPolyDataFilter) to reduce staircase artifacts. You may also apply various smoothing and noise filtering methods on the labelmap in Segment Editor.