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Multi-phase registration of 2-D X-ray images to 3-D volume studies

  • US 7,835,500 B2
  • Filed: 11/16/2005
  • Issued: 11/16/2010
  • Est. Priority Date: 11/16/2005
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • estimating, by a processing device, transformation parameters between a 2-D projection of a volume and a 2-D reference image of the volume in a plurality of search-phases, the estimating comprising;

    estimating in-plane transformation parameters between the 2-D projection of the volume and a 2-D reference image generated from 3-D scan data of the volume in a first search-phase; and

    estimating out-of-plane rotation parameters between the 2-D projection and a plurality of 2-D reference images generated from the 3-D scan data of the volume in a second search-phase; and

    searching, by the processing device, for 2-D transformation parameters in each of the plurality of search-phases using combinations of search techniques and similarity measures in each search-phase.

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