Low latency stabilization for head-worn displays

US9898866B2 · kind B2 · utility

Assignee

• The University of North Carolina at Chapel Hill · US

Inventors

• Henry Fuchs · Chapel Hill, US
• Anselmo A. Lastra · Chapel Hill, US
• Jan-Michael Frahm · Chapel Hill, US
• Nate Michael Dierk · Carrboro, US
• David Paul Perra · Santa Monica, US

Key dates

• Filing date: Mar 13, 2014
• Grant date: Feb 20, 2018
• Expiry date: Aug 7, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30244
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

Methods, systems, and computer readable media for low latency stabilization for head-worn displays are disclosed. According to one aspect, the subject matter described herein includes a system for low latency stabilization of a head-worn display. The system includes a low latency pose tracker having one or more rolling-shutter cameras that capture a 2D image by exposing each row of a frame at a later point in time than the previous row and that output image data row by row, and a tracking module for receiving image data row by row and using that data to generate a local appearance manifold. The generated manifold is used to track camera movements, which are used to produce a pose estimate.