LABEL-EMBEDDING FOR TEXT RECOGNITION
First Claim
1. A method for comparing a text image and a character string comprising:
- embedding a character string into a vectorial space, comprising extracting a set of features from the character string and generating a character string representation based on the extracted character string features;
embedding a text image into a vectorial space, comprising extracting a set of features from the text image and generating a text image representation based on the extracted text image features; and
computing a compatibility between the text image representation and character string representation comprising computing a function of the text image representation and character string representation,wherein at least one of the embedding and the computing of the compatibility is performed with a processor.
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Abstract
A system and method for comparing a text image and a character string are provided. The method includes embedding a character string into a vectorial space by extracting a set of features from the character string and generating a character string representation based on the extracted features, such as a spatial pyramid bag of characters (SPBOC) representation. A text image is embedded into a vectorial space by extracting a set of features from the text image and generating a text image representation based on the text image extracted features. A compatibility between the text image representation and the character string representation is computed, which includes computing a function of the text image representation and character string representation.
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Citations
23 Claims
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1. A method for comparing a text image and a character string comprising:
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embedding a character string into a vectorial space, comprising extracting a set of features from the character string and generating a character string representation based on the extracted character string features; embedding a text image into a vectorial space, comprising extracting a set of features from the text image and generating a text image representation based on the extracted text image features; and computing a compatibility between the text image representation and character string representation comprising computing a function of the text image representation and character string representation, wherein at least one of the embedding and the computing of the compatibility is performed with a processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for comparing a text image and a character string comprising:
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a text string representation generator for generating a character string representation based on features extracted from a character string, the character string consisting of a sequence of characters, the text string representation comprising a spatial pyramid bag of characters representation; a text image representation generator for generating a text image representation based on features extracted from a text image; a comparator for computing a compatibility between the text image representation and the character string representation; an output component for outputting information based on the computed compatibility between at least one character string representation and at least one text image representation; and a processor which implements the text string representation generator, text image representation generator;
comparator, and output component.
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23. A method for comparing a text image and a character string comprising:
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for at least one character string comprising a sequence of characters, extracting a set of features from the character string, comprising partitioning the character string to form a spatial pyramid of regions and for each region, generating a representation of the region comprising counting occurrences of each of a finite set of characters in the region; generating a character string representation based on the region representations; extracting a set of features from the text image and generating a text image representation based thereon; and computing a compatibility between the text image representation and the character string representation comprising embedding at least one of the character string representation and the text image representation with a matrix of learned parameters, the compatibility being a function of the at least one embedded representation, wherein at least one of the embedding and the computing of the compatibility is performed with a processor.
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Specification