Meta Platforms Technologies, LLC

Nicholas McGee

Yu Shi

Gregory Mayo Daly

Guohua Wei

Tamer Elazhary

Michiel Koen Callens

Karol Constantine Hatzilias

A display waveguide is configured to direct a first portion of display light to an eye along a first optical path. A disparity waveguide is configured to direct a second portion of the display light to a disparity sense circuit along a second optical path separated from the first optical path.

Waveguide disparity sensing

A method includes generating a depth map of a real environment as seen from a viewpoint that comprises pixels having corresponding depth values of one or more physical objects. A first two-dimensional occlusion surface is generated representing at least a visible portion of the one or more physical objects located within a first predetermined depth range defined relative to the viewpoint. A second two-dimensional occlusion surface is generated such that a minimum depth of a second predetermined depth range is greater than a maximum depth of the first predetermined depth range. The first and second occlusion surfaces are posed in a three-dimensional coordinate system. The visibility of a virtual object is determined relative to the one or more physical objects by comparing a model of the virtual object with the first and second occlusion surfaces, and an output image is generated based on the visibility of the virtual object.

Generating and modifying an artificial reality environment using occlusion surfaces at predetermined distances

A near-eye optical assembly includes a display waveguide and an optical structure. The display waveguide is configured to receive display light and to direct the display light to an eye of a user. The optical structure includes an input coupler, an optical path, and an output coupler. The input coupler is disposed to receive a portion of the display light that propagates through the waveguide. The optical path directs the portion of the display light from the input coupler to an output coupler that is configured to provide the received portion of the display light to a disparity sense circuit.

Active disparity sensing of head mounted display

A method includes generating a depth map of a real environment as seen from a viewpoint that comprises pixels having corresponding depth values of one or more physical objects. Based on the depth map a two-dimensional occlusion surface is generated representing at least a visible portion of the one or more physical objects that are located within a predetermined depth range defined relative to the viewpoint. The two-dimensional occlusion surface is posed in a three-dimensional coordinate system such that the two-dimensional occlusion surface is located at a predetermined distance from the viewpoint. The visibility of a virtual object is determined relative to the one or more physical objects by comparing a model of the virtual object with the two-dimensional occlusion surface, and an output image is generated based on the visibility of the virtual object.

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Seattle, WA, United States of America

Nicholas McGee