Method for fusing images and apparatus therefor
First Claim
1. In apparatus for forming a composite image from at least first and second monochrome source images comprising first means for decomposing each of the source images into a set of a plurality of component patterns and deriving a monochrome composite image in response to a weighted average of amplitudes of the component patterns of the source images;
- the combination therewith of;
second means for assigning amplitudes of a first of opponent colors to first component patterns of a source image in accordance with their normalized weight contribution to said weighted average of the amplitudes of the component patterns of the source images; and
third means for assigning amplitudes of a second of said opponent colors to second component patterns of a source image in accordance with their normalized weight contributions to said weighted average of the amplitudes of the component patterns of the source images; and
fourth means responsive to outputs from said first, second and third means for augmenting said monochrome composite image with said first and second opponent colors thereby to provide a color composite image.
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Abstract
A method for fusing two or more source images to form a composite image with extended information content which may be color augmented and apparatus for forming the composite image from the source images is disclosed. Each source image is decomposed into a number of source images of varying resolution. The decomposed source images are analyzed using directionally sensitive operators to generate a set of oriented basis functions characteristic of the information content of the original images. The oriented basis functions for the composite image are then selected from those of the different source images and the inverse of the decomposition performed to construct the composite image. Color augmentation provides information as to the relative weighting of the contribution of each source to the composite image.
380 Citations
7 Claims
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1. In apparatus for forming a composite image from at least first and second monochrome source images comprising first means for decomposing each of the source images into a set of a plurality of component patterns and deriving a monochrome composite image in response to a weighted average of amplitudes of the component patterns of the source images;
- the combination therewith of;
second means for assigning amplitudes of a first of opponent colors to first component patterns of a source image in accordance with their normalized weight contribution to said weighted average of the amplitudes of the component patterns of the source images; and third means for assigning amplitudes of a second of said opponent colors to second component patterns of a source image in accordance with their normalized weight contributions to said weighted average of the amplitudes of the component patterns of the source images; and fourth means responsive to outputs from said first, second and third means for augmenting said monochrome composite image with said first and second opponent colors thereby to provide a color composite image. - View Dependent Claims (2, 3, 4, 5)
- the combination therewith of;
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6. A method for forming a composite image from N source images where N is greater than one comprising the steps of:
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a) decomposing each source image In into a plurality L of sets of component patterns Pn (m, l), where n is indicative of the Nth source image and m is the number of patterns in each of the L sets; (b) computing a match measure Mn1,n2 (m, l) for the source images, where n1 is the first and and n2 is the second of each pair of patterns being matched; (c) computing a saliency measure Sn (m, l) for a component pattern Pn (m, l); (d) selecting component patterns from the component pattern sets Pn (m, l) using the match measures Mn1,n2 (m, l) and the saliency measures Sn (m, l) to form a set of component patterns Pc (m, l) for the composite image, where c is indicative of the formed component patterns of the set being composite component patterns; and (e) constructing the composite image from the set of component patterns Pc (m, l). - View Dependent Claims (7)
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Specification