CODEWITHSUNDEEP
math3dcomputer-visionkinectdistance
OusGh
OusGh

Reputation: 23

Normalized distance between 3d/2d points

I have a project using 3d facial feature points from kinect sensor. I need to calculate distance between some points so that I get a distance that is invariant to scale, translation, rotation. I read that I needed to compute normalized distance between points but I don't know how to do that. I looked on google but didn't get a mathematical formula. If someone could help me or at least give me tips to documentation to do that. Thank you.

Upvotes: 0

Views: 3053

Answers (1)

4pie0
4pie0

Reputation: 29724

You can calculate a normalized Euclidean distance between vectors x, y (from same distribution) with:

enter image description here

where s is a standard deviation of x and y. In general you can look at Mahalanobis distance

Upvotes: 3

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