US6993163B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid computer modeling of faces for animation
Assignee: Zhigu Holdings Ltd
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Filing: 2005-02-01
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Granted: 2006-01-31
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Expires: 2025-02-01
Abstract
Abstract Described herein is a technique for creating a 3D face model using images obtained from an inexpensive camera associated with a general-purpose computer. Two still images of the user are captured, and two video sequences. The user is asked to identify five facial features, which are used to calculate a mask and to perform fitting operations. Based on a comparison of the still images, deformation vectors are applied to a neutral face model to create the 3D model. The video sequences are used to create a texture map. The process of creating the texture map references the previously obtained 3D model to determine poses of the sequential video images.
Inventors
- 👤 Zicheng Liu
- 👤 Zhengyou Zhang
- 👤 Michael F. Cohen
- 👤 Charles E. Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:32
CPC Classifications
G; G06; G06T; G06T13/00; G06T13/20; G06T13/40; G06T15/00; G06T15/10; G06T15/20; G06T15/205; G06T17/00; G06T17/10; G06T17/20; G06T7/00; G06T7/20; G06T7/246; G06T7/251; G06T7/50; G06T7/55; G06T7/579; G06T7/70; G06T7/73; G06T7/74; G06V; G06V20/00; G06V20/60; G06V20/64; G06V40/00; G06V40/10; G06V40/16; G06V40/161; G06V40/165; G06V40/168; G06V40/171; H; H04; H04N; H04N19/00; H04N19/10; H04N19/134; H04N19/162; H04N19/50; H04N19/503; G06T2200/00; G06T2200/08; G06T2207/00; G06T2207/10; G06T2207/10004; G06T2207/10012; G06T2207/10016; G06T2207/10021; G06T2207/30; G06T2207/30196; G06T2207/30201; G06T9/00; G06T9/001
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
166 words
One or more computer-readable media containing a program that is executable by a computer to determine the pose of an object in a given 2D image relative to a 3D model of the object, the program comprising the following actions: matching points of the object in the given image with corresponding points of a base image, wherein each matched point has a corresponding 3D position in the 3D model, the 3D positions being determined by the poses of the images, wherein the pose of the base image is known; calculating the pose of the given image such that projections of 3D positions of matched points of the base image onto the given image coincide approximately with the corresponding matched points of the given image; wherein the calculating comprises: summing the differences between the projections of 3D positions of matched points of the base image onto the given image and the corresponding matched points of the given image; and calculating a pose that minimizes the summed differences.
Claim 2
Dependent Claim
166 words
One or more computer-readable media containing a program that is executable by a computer to determine the pose of an object in a given 2D image relative to a 3D model of the object, the program comprising the following actions: matching points of the object in the given image with corresponding points of a base image, wherein each matched point has a corresponding 3D position in the 3D model, the 3D positions being determined by the poses of the images, wherein the pose of the base image is known; calculating the pose of the given image such that projections of 3D positions of matched points of the base image onto the given image coincide approximately with the corresponding matched points of the given image; wherein the calculating comprises: summing the differences between the projections of 3D positions of matched points of the base image onto the given image and the corresponding matched points of the given image; and calculating a pose that minimizes the summed differences.
Claim 3
Dependent Claim
22 words
One or more computer-readable media as recited in claim 1 , wherein the matching comprises detecting and matching corners of the images.
Claim 4
Independent Claim
145 words
A method to determine poses of an object in a succession of 2D images, relative to a 3D model of the object comprising, for each 2D image in succession: matching points of the object in the 2D image with corresponding points of a previous 2D image whose pose is already known, wherein the matched points of the previous image has corresponding 3D positions in the 3D model; calculating a pose for the 2D image that minimizes differences between the projections of 3D positions of matched points of the previous image onto the given image and the corresponding matched points of the given image; wherein the calculating comprises: summing the differences between the projections of 3D positions of matched points of the previous image onto the given image and the corresponding matched points of the given image; and calculating the pose to minimize the summed differences.
Claim 5
Independent Claim
145 words
A method to determine poses of an object in a succession of 2D images, relative to a 3D model of the object comprising, for each 2D image in succession: matching points of the object in the 2D image with corresponding points of a previous 2D image whose pose is already known, wherein the matched points of the previous image has corresponding 3D positions in the 3D model; calculating a pose for the 2D image that minimizes differences between the projections of 3D positions of matched points of the previous image onto the given image and the corresponding matched points of the given image; wherein the calculating comprises: summing the differences between the projections of 3D positions of matched points of the previous image onto the given image and the corresponding matched points of the given image; and calculating the pose to minimize the summed differences.
Claim 6
Dependent Claim
18 words
A method as recited in claim 3 wherein the matching comprises detecting and matching corners of the images.
References Cited (Backward Citations)
US5469512A
Cited
US5774591A
Cited
US5864630A
Cited
US5995119A
Cited
US5990901A
Cited
US6445810B2
Cited
US6118887A
Cited
JPH11161282A
Cited
US6173069B1
Cited
US6163322A
Cited
US6301370B1
Cited
US6714660B1
Cited
US6072496A
Cited
US6661907B2
Cited
US6154559A
Cited
US6496594B1
Cited
US6504546B1
Cited
US6807290B2
Cited
US6664956B1
Cited
US20020102010A1
Cited
US6747652B2
Cited
US6879709B2
Cited
US6771303B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-01-30 | 2009-08-01 | 2010-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-01-30 | 2013-08-01 | 2014-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-01-30 | 2017-08-01 | 2018-01-31 | $7700.00 | Window Closed / Lapsed |