# SVD ModelToModel Registration Idea

**URL:** <https://discourse.slicer.org/t/svd-modeltomodel-registration-idea/20388>\
**Category:** Development\
**Created:** [October 27, 2021, 3:31pm UTC](https://discourse.slicer.org/t/svd-modeltomodel-registration-idea/20388 "2021-10-27T15:31:12Z")\
**Posts on this page:** 1\
**Showing post:** 4

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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:** [October 28, 2021, 7:08pm UTC](https://discourse.slicer.org/t/svd-modeltomodel-registration-idea/20388/4 "2021-10-28T19:08:49Z")

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Using moment or key feature point based initial alignment before robust ICP is a quite common pattern.

@muratmaga would like to get a similar method ported from Open3D to VTK. See some more details [here](https://discourse.vtk.org/t/vtk-point-cloud-and-mesh-filters-for-downsampling-registration-icp-transform/6974).

You can also have a look at [CloudCompare’s mesh registration](https://www.cloudcompare.org/doc/wiki/index.php?title=Alignment_and_Registration) and if you find methods that work well for you then port those to VTK/Slicer. [CloudCompare is GPL](https://github.com/cloudcompare/cloudcompare), so you cannot use anything from it as is, but it is good for testing an approach before spending time with implementing it (or searching for existing non-restricted implementations).

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