Hi,
A while ago I worked on pose estimation.
I also asked a question about it to make it work. ([old question](http://answers.opencv.org/question/79231/pose-estimation-where-is-my-error-in-reasoning/))
Today I read the following about POSIT (solvePNP) in *Learning OpenCV 1st Edition*
> POSIT (aka “Pose from Orthography and
> Scaling with Iteration”) is an
> algorithm originally proposed in 1992> for computing the pose (the position > T and orientation R described by> six parameters [DeMenthon92]) of a 3D> object whose exact dimensions are> known. **To compute this pose, we must> find on the image the corresponding> locations of at least four> non-coplanar points on the surface of> that object.**
This is my image
[Example](/upfiles/1453975788412503.png)
For me this points appear to be coplanar, since they are all in the same plane?
Could someone explain to me why it works anyway?
↧