Invention Grant
- Patent Title: Methods and systems of performing performance capture using an anatomically-constrained local model
-
Application No.: US14869735Application Date: 2015-09-29
-
Publication No.: US09639737B2Publication Date: 2017-05-02
- Inventor: Thabo Beeler , Derek Bradley , Chenglei Wu
- Applicant: Disney Enterprises, Inc.
- Applicant Address: CH Zürich US CA Burbank
- Assignee: ETH ZÜRICH (EIDGENÖESSISCHE TECHNISCHE HOCHSCHULE ZÜRICH),DISNEY ENTERPRISES, INC.
- Current Assignee: ETH ZÜRICH (EIDGENÖESSISCHE TECHNISCHE HOCHSCHULE ZÜRICH),DISNEY ENTERPRISES, INC.
- Current Assignee Address: CH Zürich US CA Burbank
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06T7/20 ; G06T7/00

Abstract:
Techniques and systems are described for generating an anatomically-constrained local model and for performing performance capture using the model. The local model includes a local shape subspace and an anatomical subspace. In one example, the local shape subspace constrains local deformation of various patches that represent the geometry of a subject's face. In the same example, the anatomical subspace includes an anatomical bone structure, and can be used to constrain movement and deformation of the patches globally on the subject's face. The anatomically-constrained local face model and performance capture technique can be used to track three-dimensional faces or other parts of a subject from motion data in a high-quality manner. Local model parameters that best describe the observed motion of the subject's physical deformations (e.g., facial expressions) under the given constraints are estimated through optimization. The optimization can solve for rigid local patch motion, local patch deformation, and the rigid motion of the anatomical bones. The solution can be formulated as an energy minimization problem for each frame that is obtained for performance capture.
Public/Granted literature
- US20170091529A1 METHODS AND SYSTEMS OF PERFORMING PERFORMANCE CAPTURE USING AN ANATOMICALLY-CONSTRAINED LOCAL MODEL Public/Granted day:2017-03-30
Information query