发明名称 Swept source optical coherence tomography (OCT) method and system
摘要 A method and apparatus are provided for a swept source optical coherence tomography (OCT) system utilizing a fast scanning mechanism in the sample arm and a slowly swept light source. The position data is collected rapidly while the wavelength of the source is swept slowly. The system reduces the sweep speed requirements of the light source enabling higher power, greater imaging range, and linear sweeps of the source frequency. The OCT components (or most of them) may be implemented within a hand held imaging probe. In operation, a triangulation scan may be used to orient the imaging probe with respect to a fixed coordinate system; preferably, OCT data captured by the device is then transformed to that same orientation with respect to the fixed coordinate system to improve the scanning results.
申请公布号 US8928888(B2) 申请公布日期 2015.01.06
申请号 US201213729643 申请日期 2012.12.28
申请人 D4D Technologies, LLC 发明人 Bonnema Garret T.;Quadling Henley S.;Quadling Mark S.
分类号 G01B9/02 主分类号 G01B9/02
代理机构 代理人 Judson David H.
主权项 1. A method of scanning an object using a light source, comprising: (a) triangulation scanning the object to produce a mesh in a fixed coordinate system; (b) at each of one or more scan locations overlapping with the mesh, performing a scan in triangulation mode, and a scan in optical coherence tomography (OCT) mode; (c) computing, using software executing in a hardware element, a transformation matrix that registers the scan in triangulation mode with the mesh; (d) applying the transformation matrix to data collected from the scan in OCT mode to generate transformed OCT data; and (e) merging the transformed OCT data into a mesh that is in the fixed coordinate system.
地址 Richardson TX US