US6850872B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facial image processing methods and systems
Assignee: Zhigu Holdings Ltd
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Filing: 2000-08-30
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Granted: 2005-02-01
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Expires: 2020-08-30
Abstract
Abstract In the described embodiment, methods and systems for processing facial image data for use in animation are described. In one embodiment, a system is provided that illuminates a face with illumination that is sufficient to enable the simultaneous capture of both structure data, e.g. a range or depth map, and reflectance properties, e.g. the diffuse reflectance of a subject's face. This captured information can then be used for various facial animation operations, among which are included expression recognition and expression transformation.
Inventors
- 👤 Stephen Marschner
- 👤 Brian K. Guenter
- 👤 Sashi Raghupathy
- 👤 Kirk Olynyk
- 👤 Sing Bing Kang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 11:22
CPC Classifications
G; G06; G06T; G06T15/00; G06T15/50; G06T15/506; G06T7/00; G06T7/50; G06T7/521; G06V; G06V10/00; G06V10/40; G06V10/60; G06V40/00; G06V40/10; G06V40/16; G06V40/168
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
66 words
A facial image-processing method comprising: illuminating a face with multiple different light sources, wherein at least one of the light sources is polarized; measuring range map data from said illuminating; measuring image data from said illuminating; deriving a 3-dimensional surface from the range map data; computing surface normals to the 3-dimensional surface; and processing the surface normals and the image data to derive an albedo map.
Claim 2
Dependent Claim
66 words
A facial image-processing method comprising: illuminating a face with multiple different light sources, wherein at least one of the light sources is polarized; measuring range map data from said illuminating; measuring image data from said illuminating; deriving a 3-dimensional surface from the range map data; computing surface normals to the 3-dimensional surface; and processing the surface normals and the image data to derive an albedo map.
Claim 3
Dependent Claim
16 words
The method of claim 1 , wherein at least one of the light sources is infrared.
Claim 4
Dependent Claim
22 words
One or more computer-readable media having computer-readable instructions thereon which, when executed by a computer, implement the method of claim 1 .
Claim 5
Dependent Claim
14 words
The method of claim 1 , wherein the light sources are at different frequencies.
Claim 6
Dependent Claim
64 words
A facial image-processing method comprising: illuminating a face with multiple different light sources, wherein all of the light sources are polarized; measuring range map data from said illuminating; measuring image data from said illuminating; deriving a 3-dimensional surface from the range map data; computing surface normals to the 3-dimensional surface; and processing the surface normals and the image data to derive an albedo map.
Claim 7
Dependent Claim
64 words
A facial image-processing method comprising: illuminating a face with multiple different light sources, wherein all of the light sources are polarized; measuring range map data from said illuminating; measuring image data from said illuminating; deriving a 3-dimensional surface from the range map data; computing surface normals to the 3-dimensional surface; and processing the surface normals and the image data to derive an albedo map.
Claim 8
Dependent Claim
22 words
One or more computer-readable media having computer-readable instructions thereon which, when executed by a computer, implement the method of claim 5 .
Claim 9
Dependent Claim
77 words
A facial image-processing method comprising: illuminating a face with multiple different light sources; measuring range map data from said illuminating; applying a generic face template to the range map data to reject noise that is associated with the range map data; measuring image data from said illuminating; deriving a 3-dimensional surface from the range map data; computing surface normals to the 3-dimensional surface; and processing the surface normals and the image data to derive an albedo map.
Claim 10
Dependent Claim
77 words
A facial image-processing method comprising: illuminating a face with multiple different light sources; measuring range map data from said illuminating; applying a generic face template to the range map data to reject noise that is associated with the range map data; measuring image data from said illuminating; deriving a 3-dimensional surface from the range map data; computing surface normals to the 3-dimensional surface; and processing the surface normals and the image data to derive an albedo map.
Claim 11
Dependent Claim
22 words
One or more computer-readable media having computer-readable instructions thereon which, when executed by a computer, implement the method of claim 7 .
Claim 12
Dependent Claim
61 words
A facial image-processing method comprising: illuminating a face with multiple different light sources; measuring range map data from said illuminating; measuring image data from said illuminating; filtering the range map data; deriving a 3-dimensional surface from the range map data; computing surface normals to the 3-dimensional surface; and processing the surface normals and the image data to derive an albedo map.
Claim 13
Dependent Claim
61 words
A facial image-processing method comprising: illuminating a face with multiple different light sources; measuring range map data from said illuminating; measuring image data from said illuminating; filtering the range map data; deriving a 3-dimensional surface from the range map data; computing surface normals to the 3-dimensional surface; and processing the surface normals and the image data to derive an albedo map.
Claim 14
Dependent Claim
22 words
One or more computer-readable media having computer-readable instructions thereon which, when executed by a computer, implement the method of claim 9 .
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-02-01 | 2008-08-02 | 2009-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-02-01 | 2012-08-02 | 2013-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-02-01 | 2016-08-02 | 2017-02-01 | $7700.00 | Window Closed / Lapsed |