# How to perform 3d reconstruction

**URL:** <https://discourse.slicer.org/t/how-to-perform-3d-reconstruction/34315>\
**Category:** Support\
**Created:** [February 14, 2024, 7:49am UTC](https://discourse.slicer.org/t/how-to-perform-3d-reconstruction/34315 "2024-02-14T07:49:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![labixin](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/labixin/32/1965_2.png) [@labixin](https://discourse.slicer.org/u/labixin)\
**Post date:** [February 14, 2024, 7:49am UTC](https://discourse.slicer.org/t/how-to-perform-3d-reconstruction/34315/1 "2024-02-14T07:49:11Z")

</div>

Hello everyone,

As shown in figure 1, there is a breast CT with breast contour (labelled by blue outline), and high density markers (labelled by red dots). Now I want to perform 3d reconstruction.

Specifically:

1. Create an ellipsoid within breast contour which has known length in three dimensions (such as 4.5×4.0×1.0).
2. Let the ellipsoid translate or rotate, and finally pass through these red dots. That is, make these red dots eventually on the inner surface of the ellipsoid.

I would like to know if there is any module or extension suitable for achieving this. And if there is any suggestion on self-built algorithm.

Thanks a lot. Your help is highly appreciated.

 ![Screenshot](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/8/7/87fb036269c1ce90ac415eb9b9e645c427a0dad1.jpeg)

Figure 1

Best regards,

Crayon