The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2006
Filed:
Mar. 07, 2001
Method of pose estimation and model refinement for video representation of a three dimensional scene
Harpreet Singh Sawhney, West Windsor, NJ (US);
Rakesh Kumar, Monmouth Junction, NJ (US);
Steve Hsu, Cranbury, NJ (US);
Supun Samarasekera, Princeton, NJ (US);
Harpreet Singh Sawhney, West Windsor, NJ (US);
Rakesh Kumar, Monmouth Junction, NJ (US);
Steve Hsu, Cranbury, NJ (US);
Supun Samarasekera, Princeton, NJ (US);
Sarnoff Corporation, Princeton, NJ (US);
Abstract
The present invention is embodied in a video flashlight method. This method creates virtual images of a scene using a dynamically updated three-dimensional model of the scene and at least one video sequence of images. An estimate of the camera pose is generated by comparing a present image to the three-dimensional model. Next, relevant features of the model are selected based on the estimated pose. The relevant features are then virtually projected onto the estimated pose and matched to features of the image. Matching errors are measured between the relevant features of the virtual projection and the features of the image. The estimated pose is then updated to reduce these matching errors. The model is also refined with updated information from the image. Meanwhile, a viewpoint for a virtual image is selected. The virtual image is then created by projecting the dynamically updated three-dimensional model onto the selected virtual viewpoint.