> I've searched this through the forum and I get no solution. I see that
> there's no specific unit for point coordinates. Am I wrong in this? Maybe
> nowadays is something implemented already?
> I need to get the difference between this two points for example, but in mm:
> x = -9.087109, y = 190.829269, z = 1046.500000
> x = 9.284196, y = 158.605423, z = 891.000000
> If there is no unit, how can I determine one?
> Maybe (homemade solution) using some kind of proportion between the real
> distance between my eyes in real world and in point cloud representation ...
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Re: How to estimate distance between two point coordinates in mm ?
This post was updated on .
Hey, thanks for quick answer.
But how much you can trust that assumption? Is it precise to assume meters?
Can I transform by proportions as I said before?
Basically what I need is to estimate an error of my program testing on some images of groundtruth.
For example I have measured the distance between my nose and chin and it's 800 mm.
However in my pointcloud it results
x = 177.548141, y = 76.620781, z = 717.710510
x = 168.723236, y = 92.144066, z = 717.000000
so 92-76 =16 ??? How can I relate this?