发明申请
US20130271625A1 PHOTOMETRIC REGISTRATION FROM ARBITRARY GEOMETRY FOR AUGMENTED REALITY
有权
从实质性的现象出发,从几何几何的光学注册
- 专利标题: PHOTOMETRIC REGISTRATION FROM ARBITRARY GEOMETRY FOR AUGMENTED REALITY
- 专利标题(中): 从实质性的现象出发,从几何几何的光学注册
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申请号: US13563440申请日: 2012-07-31
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公开(公告)号: US20130271625A1公开(公告)日: 2013-10-17
- 发明人: Lukas Gruber , Thomas Richter-Trummer , Dieter Schmalstieg
- 申请人: Lukas Gruber , Thomas Richter-Trummer , Dieter Schmalstieg
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 主分类号: H04N5/262
- IPC分类号: H04N5/262 ; G06K9/36
摘要:
Photometric registration from an arbitrary geometry for augmented reality is performed using video frames of an environment captured by a camera. A surface reconstruction of the environment is generated. A pose is determined for the camera with respect to the environment, e.g., using model based tracking using the surface reconstruction. Illumination data for the environment is determined from a video frame. Estimated lighting conditions for the environment are generated based on the surface reconstruction and the illumination data. For example, the surface reconstruction may be used to compute the possible radiance transfer, which may be compressed, e.g., using spherical harmonic basis functions, and used in the lighting conditions estimation. A virtual object may then be rendered based on the lighting conditions. Differential rendering may be used with lighting solutions from the surface reconstruction of the environment and a second surface reconstruction of the environment combined with the virtual object.
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