Patent · US Expired

Augmented-reality tool employing scene-feature autocalibration during camera motion

US6765569B2 · kind B2 · utility

212Cited by

3References

52Claims

0Family size

Assignee

University of Southern California · US

Inventors

Ulrich Neumann · Roßdorf, DE
Suya You · La Quinta, US

Key dates

Filing date	Sep 25, 2001
Grant date	Jul 20, 2004
Priority date	—
Expiry date	Jul 22, 2022

Classification

Technology area (CPC G)Physics
CPC primaryG06T7/80
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An augmented reality tool makes use of autocalibrated features for rendering annotations into images of a scene as a camera moves about relative to the scene. The autocalibrated features are used for positioning the annotations and for recovery of tracking, correspondences and camera pose. An improved method of autocalibration for autocalibrating structured sets of point features together is also described. The augmented reality tool makes use of manual, semi-automatic and automatic methods employing autocalibrated features.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.