Reply To: Sandbox Size

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Oliver Kreylos

Due to the Kinect’s fixed field-of-view, it has to be mounted at approximately the same height above the intended sand surface as the sandbox’s width. To wit: sandbox 1mx0.75m => Kinect (and projector) height 1m; sandbox 2mx1.5m => Kinect height 2m.

The main issue is that the Kinect’s depth resolution, i.e., the sandbox’s elevation resolution, is inversely proportional to distance squared. From 2m away, the Kinect won’t be able to resolve height differences smaller than around 1cm.

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