Image collating apparatus, image collating method, image collating program product, and computer readable recording medium recording image collating program product
First Claim
1. An image collating apparatus for performing an image collation operation comprising:
- a storage device storing image data representing a sensing image of an object sensed by a sensor, template data representing a template image, and a program; and
a processor receiving commands from said program for (a) detecting exclusion areas in said sensing image to be excluded from said image collation operation based on classification of image patterns, (b) determining whether or not said sensing image and said template image are derived from the identical object by performing template-matching operations to evaluate similarity between said template image and partial images of said sensing image in different levels, in said different levels said processor increasing the size of area covered by said partial image to be matched with said template image level by level, and at least in one level said processor performing the template-matching operation with respect to said partial image where said exclusion areas are excluded.
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Abstract
An image collating apparatus includes a storage device and a processor. The storage device stores data representing a sensing image, data representing a template image, and a program. The processor detects exclusion areas in the sensing image to be excluded from the image collation operation based on classification of image patterns. The processor determines whether or not the sensing image and the template image are derived from the identical object by performing template-matching operations to evaluate similarity between the template image and partial images of the sensing image in different levels with increasing the size of area covered by the partial image to be matched with the template image level by level. At least in one level the processor performs the template-matching operation with respect to the partial image where the exclusion areas are excluded.
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Citations
15 Claims
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1. An image collating apparatus for performing an image collation operation comprising:
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a storage device storing image data representing a sensing image of an object sensed by a sensor, template data representing a template image, and a program; and
a processor receiving commands from said program for (a) detecting exclusion areas in said sensing image to be excluded from said image collation operation based on classification of image patterns, (b) determining whether or not said sensing image and said template image are derived from the identical object by performing template-matching operations to evaluate similarity between said template image and partial images of said sensing image in different levels, in said different levels said processor increasing the size of area covered by said partial image to be matched with said template image level by level, and at least in one level said processor performing the template-matching operation with respect to said partial image where said exclusion areas are excluded. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of collating an image for performing an image collation operation, comprising the steps of:
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storing image data representing a sensing image of an object sensed by a sensor, and template data representing a template image;
detecting exclusion areas in said sensing image to be excluded from said image collation operation based on classification of image patterns; and
determining whether or not said sensing image and said template image are derived from the identical object by performing template-matching operations to evaluate similarity between said template image and partial images of said sensing image in different levels, in said different levels said processor increasing the size of area covered by said partial image to be matched with said template image level by level, wherein said step of determining includes the step performing the template-matching operation of at least in one level with respect to said partial image where said exclusion areas are excluded.
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14. An image collating program product for performing an image collation operation and causing a computer to execute the steps of:
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storing image data representing a sensing image of an object sensed by a sensor and template data representing a template image;
detecting exclusion areas in said sensing image to be excluded from said image collation operation based on classification of image patterns; and
determining whether or not said sensing image and said template image are derived from the identical object by performing template-matching operations to evaluate similarity between said template image and partial images of said sensing image in different levels, in said different levels said processor increasing the size of area covered by said partial image to be matched with said template image level by level, wherein said step of determining includes the step performing the template-matching operation of at least in one level with respect to said partial image where said exclusion areas are excluded.
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15. A computer readable recording medium recording an image collating program for performing an image collation operation causing a computer to execute the steps of:
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storing image data representing a sensing image of an object sensed by a sensor and template data representing a template image;
detecting exclusion areas in said sensing image to be excluded from said image collation operation based on classification of image patterns; and
determining whether or not said sensing image and said template image are derived from the identical object by performing template-matching operations to evaluate similarity between said template image and partial images of said sensing image in different levels, in said different levels said processor increasing the size of area covered by said partial image to be matched with said template image level by level, wherein said step of determining includes the step performing the template-matching operation of at least in one level with respect to said partial image where said exclusion areas are excluded.
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Specification