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Multiscale adaptive system for enhancement of an image in X-ray angiography

  • US 5,963,676 A
  • Filed: 02/07/1997
  • Issued: 10/05/1999
  • Est. Priority Date: 02/07/1997
  • Status: Expired due to Term
First Claim
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1. A multiscale adaptive system for enhancement of an image in x-ray angiography comprising:

  • an image acquisition system for acquiring an input image;

    an image contrast enhancement system connected to said image acquisition system for utilizing a multiscale approach to enhancement;

    a display mapping system connected to said image contrast enhancement system for modifying pixel values such that relevant image information is presented in an optimal way; and

    ,an image display apparatus connected to said display mapping system for presenting an enhanced image;

    wherein said image contrast enhancement system comprises;

    a pyramid system wherein a pyramid of intensity images are generated at pyramid levels from said input image;

    an enhancement mask generator wherein enhancement masks of said intensity images are generated at each of said pyramid levels;

    a combination system wherein said enhancement masks are combined together to form a single composite mask; and

    ,an enhanced image generator wherein said single composite mask is combined with said input image to form an enhanced image.

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