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Title: Enhancement of the visibility of objects located below the surface of a scattering medium

Patent ·
OSTI ID:1108722

Techniques are provided for enhancing the visibility of objects located below the surface of a scattering medium such as tissue, water and smoke. Examples of such an object include a vein located below the skin, a mine located below the surface of the sea and a human in a location covered by smoke. The enhancement of the image contrast of a subsurface structure is based on the utilization of structured illumination. In the specific application of this invention to image the veins in the arm or other part of the body, the issue of how to control the intensity of the image of a metal object (such as a needle) that must be inserted into the vein is also addressed.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
8,586,924
Application Number:
12/880,376
OSTI ID:
1108722
Country of Publication:
United States
Language:
English

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Method and apparatus for detecting an abnormality within a host medium utilizing frequency-swept modulation diffusion tomography patent February 2006
System and method for enhanced visualization of subcutaneous structures patent May 2001
Method and apparatus for detecting electro-magnetic reflection from biological tissue patent February 2000
Sprectroscopic and time-resolved optical methods and apparatus for imaging objects in turbed media patent December 2003
Diaphanography method and apparatus patent February 1989
Photosensor with multiple light sources patent March 1996