Registration of separations
First Claim
1. A method of performing registration of digitized images, the method comprising:
- selecting at least two area from each of a first image and a second image;
determining separate transformations for the selected areas of the first image based on a comparison of areas within the first and second images; and
applying a feathering technique within a predetermined amount of at least two neighboring areas within the selected areas in order to obtain new transformations for the predetermined areas if the transformations for the neighboring areas differ, where the new transformations are based on the separate transformations.
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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.
70 Citations
19 Claims
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1. A method of performing registration of digitized images, the method comprising:
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selecting at least two area from each of a first image and a second image; determining separate transformations for the selected areas of the first image based on a comparison of areas within the first and second images; and applying a feathering technique within a predetermined amount of at least two neighboring areas within the selected areas in order to obtain new transformations for the predetermined areas if the transformations for the neighboring areas differ, where the new transformations are based on the separate transformations. - View Dependent Claims (2, 3, 4)
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5. A method of performing registration of digitized images, the method comprising:
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selecting a first area in each of a first image and a second image; determining which pixels in the first areas of the first and second images are feature pixels; comparing the first areas of the first and second images by weighting (a) a comparison of feature pixels in the first area of the first image with corresponding pixels in the first area of the second image differently than (b) a comparison of non-feature pixels in the first area of the first image with corresponding pixels in the first area of the second image; and determining a transformation for the first area of the first image based on the comparison of the first areas of the first and second images. - View Dependent Claims (6, 7, 8, 9)
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10. A method of performing registration of digitized images, the method comprising:
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selecting a first area from each of a first image and a second image; detecting a first set of features in the first area of the first image; determining a second set of features consisting of the features from within the first set that include a first predetermined amount of information; determining whether the second set of features is collectively sufficient to provide a meaningful comparison; and determining, if the second set of features is deemed collectively sufficient, a transformation for the first area of the first image based on a comparison of the first area of the first image with areas of the second image. - View Dependent Claims (11, 12, 13, 14)
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15. A method of performing registration of digitized images, the method comprising:
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selecting automatically a first area in each of a first image and a second image; determining automatically a transformation for the first area in the first image based on a comparison of the first area of the first image with corresponding areas of the second image; applying automatically the transformation to the first area in the first image, wherein a film distortion is reduced; performing the method for multiple areas in the first image; and determining the transformations for the multiple areas in an order of increasing radial distance. - View Dependent Claims (17)
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16. A method of performing registration of digitized images, the method comprising:
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selecting automatically a first area in each of a first image and a second image; determining automatically a transformation for the first area in the first image based on a comparison of the first area of the first image with corresponding areas of the second image; applying automatically the transformation to the first area in the first image, wherein a film distortion is reduced; performing the method for a second area in the first image that is not isolated from the first area, wherein the two transformations are represented as alignment vectors that differ; and applying a feathering technique to the first and second areas within a predetermined amount of the first and second areas in order to obtain new alignment vectors within the predetermined amount where the new alignment vectors are based on the first and second alignment vectors.
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18. A method of performing registration of digitized images, the method comprising:
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selecting automatically a first area in each of a first image and a second image; determining automatically a transformation for the first area in the first image based on a comparison of the first area of the first image with corresponding areas of the second image; and applying automatically the transformation to the first area in the first image, wherein a film distortion is reduced, wherein determining the transformation comprises; detecting automatically a feature in the first area of the first image; eliminating automatically parts of the feature that do not contain a predetermined amount of information; and determining whether parts of the feature that were not eliminated provide a basis for meaningful comparison. - View Dependent Claims (19)
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Specification