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1. (WO2018125566) TOUCH INTERACTIVITY WITH OCCLUSIONS IN RETURNED ILLUMINATION DATA

Pub. No.:    WO/2018/125566    International Application No.:    PCT/US2017/066065
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Thu Dec 14 00:59:59 CET 2017
IPC: G06T 7/70
G01S 17/00
G01S 17/66
G06F 3/033
Applicants: MICROVISION, INC.
Inventors: MORARITY, Jonathan A.
MCVITTIE, Patrick J.
VISWANATHAN, P. Selvan
CHEN, Ru
ZILKE, Justin R.
Title: TOUCH INTERACTIVITY WITH OCCLUSIONS IN RETURNED ILLUMINATION DATA
Abstract:
A projection apparatus (100) emits light pulses in a field of view (112) and measures properties of reflections. Properties may include time of flight and return amplitude. Foreground objects and background surfaces are distinguished, distances between foreground objects and background surfaces are determined based on reflections that are occluded by the foreground objects and other properties of the projection system.