发明名称 |
Incorporating video meta-data in 3D models |
摘要 |
A moving object detected and tracked within a field of view environment of a 2D data feed of a calibrated video camera is represented by a 3D model through localizing a centroid of the object and determining an intersection with a ground-plane within the field of view environment. An appropriate 3D mesh-based volumetric model for the object is initialized by using a back-projection of a corresponding 2D image as a function of the centroid and the determined ground-plane intersection. Nonlinear dynamics of a tracked motion path of the object are represented as a collection of different local linear models. A texture of the object is projected onto the 3D model, and 2D tracks of the object are upgraded to 3D motion to drive the 3D model by learning a weighted combination of the different local linear models that minimizes an image re-projection error of model movement. |
申请公布号 |
GB2503621(B) |
申请公布日期 |
2014.03.12 |
申请号 |
GB20130018426 |
申请日期 |
2012.05.02 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
LISA MARIE BROWN;ROGERIO SCHMIDT FERIS;SHARATHCHANDRA UMAPATHIRAO PANKANTI;ANKUR DATTA |
分类号 |
H04N5/232;G06T13/20;G06T17/00 |
主分类号 |
H04N5/232 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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