IPD Calibration Scientific Base?

[paulLubos]

Hi all,

I did some browsing trying to find some scientific evidence that the Oculus Config Tool's IPD measurement is approximately correct.

Did anyone find some kind of paper or did anyone do some research themselves to determine whether this measurement is correct?

I checked the Oculus thing and the old mirror measurement and got nearly the same values, however my experience is hardly valid for all of mankind 😉

It would be lovely to know whether the measurement just depends on trigonometry based on the assumption that the eye is a point-(or sphere-) shaped object or whether there's science to back that up.

Thanks in advance!

[RiftXdev]

hold a ruler up to your face and selfie it.

Use it to measure your IPD

[paulLubos]

Yea that would be a pretty bad way to do it and that doesn't answer my question whether there is any scientific evidence for the calibration method.

[lmaceleighton]

I just wanted to add, if you ARE going to "take a selfie" to try to get an IPD number. I would make sure first you use a high res camera, and then just use photoshop to measure.

~B :ugeek:

[Dreamwriter]

Not sure about scientific base, but here's how the Nintendo Virtual Boy did it: the screen had four symbols in the extreme corners, you adjusted the IPD slider until you could see all four equidistant from each other

[RiftXdev]

It's an entirely mathematical problem as you say. If the distance of the screen to your eye remains constant for the entire test then the measurement should be accurate.

This is why the device records the distance from your eyes, to make this calculation.