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Image registration using closest corresponding voxels with an iterative registration process

  • US 5,937,083 A
  • Filed: 04/28/1997
  • Issued: 08/10/1999
  • Est. Priority Date: 04/29/1996
  • Status: Expired due to Fees
First Claim
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1. A method of registering three-dimensional (3D) volume images, wherein a volume image is represented by an array of voxel color values characterizing physical parameters of a volume of a 3D object, wherein the 3D object is characterized, at least in part, by the volume images being registered, the method comprising the steps of:

  • capturing a first volume image, the first volume image characterizing a first set of physical characteristics of a scanned 3D object;

    capturing a second volume image, the second volume image characterizing a second set of physical characteristics of the scanned 3D object;

    generating voxel pairs, wherein each voxel pair comprises a first voxel from a first of the two volume images and a second voxel from the second of the two volume images, when the second voxel has a characteristic that is common to both the first voxel and the second voxel and the second voxel is at least as close to the first voxel as any other voxel in the second volume image having the characteristic; and

    iteratively determining a registration transformation from the generated voxel pairs, where the registration transformation is a transformation relating the two volume images.

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