# Volumetric point to point correspondence

**URL:** <https://shapeworks.discourse.group/t/volumetric-point-to-point-correspondence/42>\
**Category:** Uncategorized\
**Created:** [March 22, 2021, 11:43pm UTC](https://shapeworks.discourse.group/t/volumetric-point-to-point-correspondence/42 "2021-03-22T23:43:44Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![bartbols](https://avatars.discourse-cdn.com/v4/letter/b/a183cd/32.png) [@bartbols](https://shapeworks.discourse.group/u/bartbols)\
**Post date:** [March 22, 2021, 11:43pm UTC](https://shapeworks.discourse.group/t/volumetric-point-to-point-correspondence/42/1 "2021-03-22T23:43:44Z")

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Hi

I was wondering if it’s possible with ShapeWorks to find point-to-point correspondence not just on the surface of a shape, but also internally. That is, is it possible to establish volume-to-volume correspondence instead of surface-to-surface correspondence? I guess the principle used to position particles will extend into volumetric data as well, but I was wondering if this ever has been coded up, or if there are any plans to do so in the future.

Thanks, Bart

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**Author:** ![amorris](https://avatars.discourse-cdn.com/v4/letter/a/73ab20/32.png) [@amorris](https://shapeworks.discourse.group/u/amorris)\
**Post date:** [March 23, 2021, 8:37am UTC](https://shapeworks.discourse.group/t/volumetric-point-to-point-correspondence/42/2 "2021-03-23T08:37:47Z")

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Hi Bart,

Yes, this is indeed planned for the future. I don’t believe any progress has been made though.

Thanks,  
Alan

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**Author:** ![shireen](https://yyz2.discourse-cdn.com/free1/user_avatar/shapeworks.discourse.group/shireen/32/9_2.png) [@shireen](https://shapeworks.discourse.group/u/shireen)\
**Post date:** [March 25, 2021, 3:57pm UTC](https://shapeworks.discourse.group/t/volumetric-point-to-point-correspondence/42/3 "2021-03-25T15:57:28Z")

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Hi Bart,

I echo @amorris. Building volumetric correspondence models is feasible with ShapeWorks tools. Still, this path would need a bit more development from our side, including relaxing some constraints in our software that limit the model optimization for only surfaces and visualization/analysis tools for the optimized models.

Please feel free to submit a feature request on [ShapeWorks GitHub issue tracker](https://github.com/SCIInstitute/ShapeWorks/issues) and we will add more discussions on the issue as we do progress on this. This will help us prioritize this feature as an action item.

Regards  
Shireen

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**Author:** ![bartbols](https://avatars.discourse-cdn.com/v4/letter/b/a183cd/32.png) [@bartbols](https://shapeworks.discourse.group/u/bartbols)\
**Post date:** [March 29, 2021, 12:06am UTC](https://shapeworks.discourse.group/t/volumetric-point-to-point-correspondence/42/4 "2021-03-29T00:06:33Z")

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Thanks for the response. Good to hear that this is something that is planned for the future. I’ll submit a feature request on GitHub.  
Cheers, Bart