The Accuracy of Measurements

[AdamSobieski]

I would like to propose for WebXR a means of obtaining the accuracy of XR devices’ measurements with respect to positions, distances, velocities, and accelerations.

Precise measurements and the availability of calibration data can enhance a number of scenarios, including computer vision scenarios such as 3D object reconstruction, 3D scene reconstruction, and handwriting processing (InkML, for instance, has a default unit of the millimeter).

[cabanier]

I would like to propose for WebXR a means of obtaining the accuracy of XR devices’ measurements with respect to positions, distances, velocities, and accelerations.

I don't quite understand what this means or what this will accomplish.

Precise measurements and the availability of calibration data can enhance a number of scenarios, including computer vision scenarios such as 3D object reconstruction, 3D scene reconstruction, and handwriting processing (InkML, for instance, has a default unit of the millimeter).

Since WebXR doesn't support that, maybe this can be rolled into a future spec?
@bialpio is working on exposing information from the depth camera. Could it be exposed there?