Method and apparatus for 3-D imaging of internal light sources
US7616985B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2003 |
| Grant date | Nov 10, 2009 |
| Priority date | — |
| Expiry date | Jun 4, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/271
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides systems and methods for obtaining a three-dimensional (3D) representation of one or more light sources inside a sample, such as a mammal. Mammalian tissue is a turbid medium, meaning that photons are both absorbed and scattered as they propagate through tissue. In the case where scattering is large compared with absorption, such as red to near-infrared light passing through tissue, the transport of light within the sample is described by diffusion theory. Using imaging data and computer-implemented photon diffusion models, embodiments of the present invention produce a 3D representation of the light sources inside a sample, such as a 3D location, size, and brightness of such light sources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.