Image recognition
First Claim
1. A method of recognizing an image, comprising the steps of utilizing a computer or processor to:
- a. process the image to provide an image set containing a plurality of different processed images which are derived from the original image to be recognized;
b. combine the processed images in the image set;
c. transform the data space occupied by the processed images in the image set;
d. generate, from the image-set represented in the transformed data space, an image key representative of the image; and
e. compare the image key with at least one previously stored image key of a known image, to verify the identity of the image.
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Abstract
A camera A produces a 3D natural image B which is re-oriented and repositioned at N to predetermined parameters. Different processes C, D, E extract different features from the image to provide different processed images. The data space occupied by the processed images is reduced, for example by Principle Component Analysis, at F, G, H and the reduced processed images are combined at O to provide an image key I representative of the image B. The image key I is compared at J with stored image keys L of known images, and the output comparison is sorted at K to produce a final list M of potential matches. In a verification process, just a single image key L may be compared. The processed images at C, D, E may alternatively be combined prior to a single subspace reduction and/or optimisation method. 2D data may be combined with or used instead of the 3D data.
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Citations
41 Claims
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1. A method of recognizing an image, comprising the steps of utilizing a computer or processor to:
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a. process the image to provide an image set containing a plurality of different processed images which are derived from the original image to be recognized; b. combine the processed images in the image set; c. transform the data space occupied by the processed images in the image set; d. generate, from the image-set represented in the transformed data space, an image key representative of the image; and e. compare the image key with at least one previously stored image key of a known image, to verify the identity of the image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. Apparatus for recognizing an image, the apparatus comprising:
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a. processing means arranged to process the image to provide a plurality of different processed images which are derived from the original image to be recognized; b. combining means arranged to combine the processed images; c. reducing means arranged to reduce the data space occupied by the processed images; d. generating means arranged to generate from the combined and reduced processed images an image key representative of the image; and e. comparison means arranged to compare the image key with at least one previously stored image key of a known image, to verify the identity of the image. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A method of recognizing an image, comprising the steps of utilizing a computer or processor to:
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a. transform the data space occupied by a three dimensional image using Fisher'"'"'s Linear Discriminant Analysis; b. generate, from the transformed data space, an image key representative of the image; and c. compare the image key with at least one previously stored image key of a known image, to verify the identity of the image.
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41. Apparatus for recognizing a three-dimensional image, the apparatus comprising:
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a. means for transforming the data space occupied by a three dimensional image using Fisher'"'"'s Linear Discriminant Analysis; b. means for generating, from the transformed data space, an image key representative of the image; and c. means for comparing the image key with at least one previously stored image key of a known image, to verify the identity of the image.
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Specification