Registration of separations
First Claim
1. A computer-implemented method for automatically determining an alignment vector for a region within an image, the method comprising:
- defining multiple regions within an image;
selecting, from among the multiple regions, a first region within the image;
identifying, from among the multiple regions, a second region within the image that is related to the first region within the image;
accessing an alignment vector determined for the second region within the image, the alignment vector determined for the second region within the image being descriptive of a transformation that aligns the second region within the image with a second region within a reference image that corresponds to the second region within the image;
identifying a first region within the reference image that corresponds to the first region within the image;
comparing the first region within the image to the first region within the reference image;
based on the comparison, determining a registration metric for the first region within the image; and
automatically determining an alignment vector for the first region within the image based on the accessed alignment vector determined for the second region within the image and the determined registration metric for the first region within the image, the alignment vector determined for the first region within the image being descriptive of a transformation that aligns the first region within the image with the first region within the reference image that corresponds to the first region within the image.
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Accused Products
Abstract
Separations or images relating to film or other fields may be registered using a variety of features, such as, for example: (1) correcting one or more film distortions; (2) automatically determining a transformation to reduce a film distortion; (3) applying multiple criteria of merit to a set of features to determine a set of features to use in determining a transformation; (4) determining transformations for areas in an image or a separation in a radial order; (5) comparing areas in images or separations by weighting feature pixels differently than non-feature pixels; (6) determining distortion values for transformations by applying a partial distortion measure and/or using a spiral search configuration; (7) determining transformations by using different sets of features to determine corresponding transformation parameters in an iterative manner; and (8) applying a feathering technique to neighboring areas within an image or separation.
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Citations
20 Claims
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1. A computer-implemented method for automatically determining an alignment vector for a region within an image, the method comprising:
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defining multiple regions within an image; selecting, from among the multiple regions, a first region within the image; identifying, from among the multiple regions, a second region within the image that is related to the first region within the image; accessing an alignment vector determined for the second region within the image, the alignment vector determined for the second region within the image being descriptive of a transformation that aligns the second region within the image with a second region within a reference image that corresponds to the second region within the image; identifying a first region within the reference image that corresponds to the first region within the image; comparing the first region within the image to the first region within the reference image; based on the comparison, determining a registration metric for the first region within the image; and automatically determining an alignment vector for the first region within the image based on the accessed alignment vector determined for the second region within the image and the determined registration metric for the first region within the image, the alignment vector determined for the first region within the image being descriptive of a transformation that aligns the first region within the image with the first region within the reference image that corresponds to the first region within the image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus for automatically determining an alignment vector for a region within an image, the apparatus comprising at least one processor programmed to perform operations comprising:
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defining multiple regions within an image; selecting, from among the multiple regions, a first region within the image; identifying, from among the multiple regions, a second region within the image that is related to the first region within the image; accessing an alignment vector determined for the second region within the image, the alignment vector determined for the second region within the image being descriptive of a transformation that aligns the second region within the image with a second region within a reference image that corresponds to the second region within the image; identifying a first region within the reference image that corresponds to the first region within the image; comparing the first region within the image to the first region within the reference image; based on the comparison, determining a registration metric for the first region within the image; and automatically determining an alignment vector for the first region within the image based on the accessed alignment vector determined for the second region within the image and the determined registration metric for the first region within the image, the alignment vector determined for the first region within the image being descriptive of a transformation that aligns the first region within the image with the first region within the reference image that corresponds to the first region within the image. - View Dependent Claims (14, 15, 16)
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17. A computer-readable medium encoded with a computer program comprising instructions that, when executed, operate to cause a computer to perform operations comprising:
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defining multiple regions within an image; selecting, from among the multiple regions, a first region within the image; identifying, from among the multiple regions, a second region within the image that is related to the first region within the image; accessing an alignment vector determined for the second region within the image, the alignment vector determined for the second region within the image being descriptive of a transformation that aligns the second region within the image with a second region within a reference image that corresponds to the second region within the image; identifying a first region within the reference image that corresponds to the first region within the image; comparing the first region within the image to the first region within the reference image; based on the comparison, determining a registration metric for the first region within the image; and automatically determining an alignment vector for the first region within the image based on the accessed alignment vector determined for the second region within the image and the determined registration metric for the first region within the image, the alignment vector determined for the first region within the image being descriptive of a transformation that aligns the first region within the image with the first region within the reference image that corresponds to the first region within the image. - View Dependent Claims (18, 19, 20)
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Specification