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Holographic arrays for threat detection and human feature removal

  • US 7,034,746 B1
  • Filed: 03/24/2005
  • Issued: 04/25/2006
  • Est. Priority Date: 03/24/2005
  • Status: Active Grant
First Claim
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1. A method to remove human features in an imaging system having at least one transmitter transmitting electromagnetic radiation between 200 MHz and 1 THz and at least one receiver receiving the reflective signal from said transmitter comprising the steps of:

  • a. transmitting a signal having at least one characteristic of elliptical polarization towards an item,b. receiving a reflection of said signal,c. identifying those portions of said received signal wherein the polarity of said characteristic is reversed and those portions of said received signal wherein the polarity of said characteristic is not reversed,d. creating an image from those portions of said received signal wherein the polarity of said characteristic is not reversed.

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