- #1
fenestren
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Hi.
I have a set of samples with small white gaussian noise that form a small part of an ellissoid in 3D space.
I'm looking for a way to find the center and the axes directions of the ellipsoid that best fits these samples.
This is an overdetermined problem with much more 3d points than unknows: I tried with a least squares such as:
X = [H'*H]\H'*w (the pseudoinverse)
but it doesn't seem to work (I often obtain another not ellipsoidal quadric).
Can you help me, please?
Thanks.
Luca.
I have a set of samples with small white gaussian noise that form a small part of an ellissoid in 3D space.
I'm looking for a way to find the center and the axes directions of the ellipsoid that best fits these samples.
This is an overdetermined problem with much more 3d points than unknows: I tried with a least squares such as:
X = [H'*H]\H'*w (the pseudoinverse)
but it doesn't seem to work (I often obtain another not ellipsoidal quadric).
Can you help me, please?
Thanks.
Luca.