Late stage reprojection

US9514571B2 · kind B2 · utility

Assignee

• MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

• Oliver Michael Christian Williams · San Francisco, US
• Paul Barham · San Francisco, US
• Michael Isard · San Francisco, US
• Tuan Wong · Bellevue, US
• Kevin Woo · Redmond, US
• Georg Klein · Seattle, US
• Douglas Kevin Service · Bothell, US
• Ashraf A. Michail · Redmond, US
• Andrew Pearson · Redmond, US
• Martin Shetter · Bellevue, US
• Jeffrey Neil Margolis · Seattle, US
• Nathan Ackerman · Seattle, US
• Calvin Chan · Bellevue, US
• Arthur C. Tomlin · Kirkland, US

Key dates

• Filing date: Jul 25, 2013
• Grant date: Dec 6, 2016
• Expiry date: Dec 19, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G09G2300/04
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Methods for generating and displaying images associated with one or more virtual objects within an augmented reality environment at a frame rate that is greater than a rendering frame rate are described. The rendering frame rate may correspond with the minimum time to render images associated with a pose of a head-mounted display device (HMD). In some embodiments, the HMD may determine a predicted pose associated with a future position and orientation of the HMD, generate a pre-rendered image based on the predicted pose, determine an updated pose associated with the HMD subsequent to generating the pre-rendered image, generate an updated image based on the updated pose and the pre-rendered image, and display the updated image on the HMD. The updated image may be generated via a homographic transformation and/or a pixel offset adjustment of the pre-rendered image.