IMAGE RANKING BASED ON ABSTRACT CONCEPTS
First Claim
1. A method for ranking images comprising:
- receiving a query comprising a semantic part and an abstract part;
retrieving a set of images responsive to the semantic part of the query;
computing first scores for the retrieved images in the set of retrieved images, each first score being based on a relevance of a retrieved image to the semantic part of the query;
identifying one of a set of chromatic concept models, based on the abstract part of the query, the identified chromatic concept model comprising an optionally-weighted set of colors expressed in a perceptually uniform color space;
for retrieved images in the set of retrieved images;
computing a chromatic image model based on colors of the image, the chromatic image model comprising a weighted set of colors expressed in the perceptually uniform color space, andcomputing a comparison measure between the chromatic image model and the identified chromatic concept model;
computing second scores for the retrieved images that are based on the computed comparison measures; and
ranking the retrieved images based on a combined score for a respective retrieved image which is a function of the first and second scores.
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Abstract
A system and method for ranking images are provided. The method includes receiving a query comprising a semantic part and an abstract part, retrieving a set of images responsive to the semantic part of the query, and computing first scores for the retrieved images in the set of retrieved images. The first score of an image can be based on a relevance of that image to the semantic part of the query (and not to the abstract part of the query). The method further includes identifying a chromatic concept model from a set of chromatic concept models. This identification can be based on the abstract part of the query (and not on the semantic part of the query). The chromatic concept model includes an optionally-weighted set of colors expressed in a perceptually uniform color space. For retrieved images in the set of retrieved images, the method includes computing a chromatic image model based on colors of the image, the chromatic image model comprising a weighted set of colors expressed in the perceptually uniform color space and computing a comparison measure between the chromatic image model and the chromatic concept model. The retrieved images are scored with respective second scores that are based on the computed comparison measures. The retrieved images are ranked based on a combined score for a respective retrieved image which is a function of the first and second scores.
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Citations
23 Claims
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1. A method for ranking images comprising:
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receiving a query comprising a semantic part and an abstract part; retrieving a set of images responsive to the semantic part of the query; computing first scores for the retrieved images in the set of retrieved images, each first score being based on a relevance of a retrieved image to the semantic part of the query; identifying one of a set of chromatic concept models, based on the abstract part of the query, the identified chromatic concept model comprising an optionally-weighted set of colors expressed in a perceptually uniform color space; for retrieved images in the set of retrieved images; computing a chromatic image model based on colors of the image, the chromatic image model comprising a weighted set of colors expressed in the perceptually uniform color space, and computing a comparison measure between the chromatic image model and the identified chromatic concept model; computing second scores for the retrieved images that are based on the computed comparison measures; and ranking the retrieved images based on a combined score for a respective retrieved image which is a function of the first and second scores. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system for ranking images comprising:
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a set of chromatic concept models stored in memory, each chromatic concept model comprising an optionally-weighted set of colors expressed in a perceptually uniform color space which represents an abstract concept; a chromatic image component which computes a chromatic image model for each of a set of images retrieved in response to a semantic part of an input query, the chromatic image model being based on colors of the image, the chromatic image model comprising a weighted set of colors expressed in the perceptually uniform color space; a scoring component which scores the retrieved images in the set of retrieved images, the score for each image being based on a relevance to the semantic part of an input query and a comparison measure between its computed chromatic image model and a selected one of the chromatic concept models; and a visualization component which generates a visualization of the retrieved images based on their respective scores. - View Dependent Claims (20, 21)
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22. A method for ranking images comprising:
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providing a set of chromatic concept models in non-transitory memory, each of the chromatic concept models comprising an optionally-weighted set of colors expressed in a perceptually uniform color space which is representative of an abstract concept; retrieving a set of images from a database, the retrieved images being responsive to a textual query; for retrieved images in the set, computing a respective chromatic image model based on colors of the image, the chromatic image model comprising a weighted set of colors expressed in a perceptually uniform color space, and scoring the retrieved images in the set of retrieved images with a combined score which is based on the relevance of the images to the textual query and a distance of the respective chromatic image model to a selected one of the chromatic concept models.
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23. A method for generating a system for ranking images comprising:
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for each of a set of abstract concepts, with an algorithm, generating a set of chromatic concept models, each of the chromatic concept models comprising an optionally-weighted set of colors expressed in a perceptually uniform color space which is representative of an abstract concept; providing a component which generates a respective chromatic image model based on colors of an image, the chromatic image model comprising a weighted set of colors expressed in a perceptually uniform color space; and providing a scoring component for scoring images retrieved in response to a query with a combined score which is based on the relevance of the images to a semantic part of the query and a distance of a respective chromatic image model to a selected one of the chromatic concept models.
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Specification