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Today the US Patent & Trademark Office published a patent application from Apple that relates to methods of moving objects in 3D environments in an XR Headset, on future Macs and iDevices, specifically an iPad using both eye and hand-tracking gestures.
A study published in Nature Communications demonstrated that it is feasible to track moving objects over a wide field of view with negligible processing costs by integrating the cross-correlations of the observed speckle pattern at different instances.