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Machine vision camera and video preprocessing system

  • US 5,745,173 A
  • Filed: 11/15/1994
  • Issued: 04/28/1998
  • Est. Priority Date: 09/08/1992
  • Status: Expired due to Fees
First Claim
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1. A video preprocessing system for use in machine vision systems, comprising:

  • receiving means for receiving electromagnetic radiation of varying frequencies from a scene and for producing infrared, visible, and ultraviolet signals corresponding to the infrared, visible, and ultraviolet portions, respectively, of said electromagnetic radiation;

    first, second, and third dynamic range transform means receiving said infrared, visible, and ultraviolet signals, respectively, for companding the dynamic range of said received infrared, visible and ultraviolet signals to produce dynamic range companded infrared, visible, and ultraviolet signals; and

    means receiving said dynamic range companded infrared, visible, and ultraviolet signals for producing a composite output image using each of said companded infrared, visible, and ultraviolet signals.

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