Agisoft Metashape

Agisoft Metashape => Python and Java API => Topic started by: user on November 20, 2017, 05:39:03 PM

Title: Estimate surface normals for circular (coded and uncoded) targets
Post by: user on November 20, 2017, 05:39:03 PM

Dear Agisoft Team,

We need the surface normals for coded and circular targets. Is there any option which is already implemented and ready to use?

Thanks

Title: Re: Estimate surface normals for circular (coded and uncoded) targets
Post by: user on November 23, 2017, 04:21:13 PM

Maybe I've not clarified enough.

I have circular targets (markers) which are coded or non coded.

All of them are printed on paper. This paper has certain width.

I've reconstructed the object of my interest and the targets are clearly visible in the model.

I want the coordinates of the model so I have to subtract the paper thickness for each position where the paper marker is.

In order to achieve this, I need the surface normal.

A less accurate version would be the surface normal of the object for a given 3d marker coordinate.

It will be even more precise if this normal was computed from epipolar lines and the ellipse geometry in combination with the images.

My questions are:

- Is there something already implemented which I can reuse? Surface normal for a given point? Surface normal for a target?

Thank you.