发明名称 |
COMPUTING 3D SHAPE PARAMETERS FOR FACE ANIMATION |
摘要 |
A three-dimensional shape parameter computation system and method for computing three-dimensional human head shape parameters from two-dimensional facial feature points. A series of images containing a user's face is captured. Embodiments of the system and method deduce the 3D parameters of the user's head by examining a series of captured images of the user over time and in a variety of head poses and facial expressions, and then computing an average. An energy function is constructed over a batch of frames containing 2D face feature points obtained from the captured images, and the energy function is minimized to solve for the head shape parameters valid for the batch of frames. Head pose parameters and facial expression and animation parameters can vary over each captured image in the batch of frames. In some embodiments this minimization is performed using a modified Gauss-Newton minimization technique using a single iteration. |
申请公布号 |
US2015235372(A1) |
申请公布日期 |
2015.08.20 |
申请号 |
US201514705900 |
申请日期 |
2015.05.06 |
申请人 |
Microsoft Technology Licensing, LLC |
发明人 |
SMOLYANSKIY Nikolay;HUITEMA Christian F.;ZHANG Cha;LIANG Lin;ANDERSON Sean Eron;ZHANG Zengyou |
分类号 |
G06T7/00;G06T13/20;G06T17/00 |
主分类号 |
G06T7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Redmond WA US |