发明授权
- 专利标题: Method and system for fast three-dimensional imaging using defocusing and feature recognition
- 专利标题(中): 使用散焦和特征识别快速三维成像的方法和系统
-
申请号: US13309482申请日: 2011-12-01
-
公开(公告)号: US08456645B2公开(公告)日: 2013-06-04
- 发明人: Morteza Gharib , Emilio Graff , Francisco Pereira
- 申请人: Morteza Gharib , Emilio Graff , Francisco Pereira
- 申请人地址: US CA Pasadena
- 专利权人: California Institute of Technology
- 当前专利权人: California Institute of Technology
- 当前专利权人地址: US CA Pasadena
- 代理机构: One LLP
- 代理商 Mark A. Stirrat
- 主分类号: G01B11/24
- IPC分类号: G01B11/24 ; G06K9/34
摘要:
Described is a method and system for fast three-dimensional imaging using defocusing and feature recognition is disclosed. The method comprises acts of capturing a plurality of defocused images of an object on a sensor, identifying segments of interest in each of the plurality of images using a feature recognition algorithm, and matching the segments with three-dimensional coordinates according to the positions of the images of the segments on the sensor to produce a three-dimensional position of each segment of interest. The disclosed imaging method is “aware” in that it uses a priori knowledge of a small number of object features to reduce computation time as compared with “dumb” methods known in the art which exhaustively calculate positions of a large number of marker points.