Character recognizing method and apparatus
AssigneeCanon Kabushiki Kaisha
InventorMasami Kugai
Life of this patent
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Abstract
Character recognizing method and apparatus for recognizing a character in an input document image and outputting the document as a recognition result by a visible image. The apparatus comprises a feature extracter for extracting a feature vector from an input character image, a recognition dictionary for storing a standard pattern of a character including font information, and an output unit for outputting a character code of the identified standard pattern and color information corresponding to the font kind. The dictionary stores the standard pattern every font.
Claims20
A character recognizing apparatus comprising:
- feature extracting means for extracting a feature from an input character image;
- a recognition dictionary for storing a standard pattern of a character;
- recognition means for recognizing a character and a type of font used therefor from said input character image by matching the feature extracted by said feature extracting means with the standard pattern stored in said recognition dictionary;
- and
- output control means for outputting the recognized character in a color corresponding to the type of font recognized by said recognition means.
A character recognizing method comprising the steps of:
- extracting a feature from an input character image;
- recognizing a character and a type of font used therefor from said input character image by matching the feature extracted at said extracting step with a standard pattern stored in a recognition dictionary;
- and
- outputting the recognized character in a color corresponding to the type of font recognized at said recognizing step.
A character recognizing apparatus comprising:
- feature extracting means for extracting a feature from an input character image;
- a first recognition dictionary for storing a standard pattern of a first kind of font;
- a second recognition dictionary for storing a standard pattern of a second kind of font;
- recognition means for recognizing a character by matching the feature extracted by said feature extracting means with the standard pattern stored in said first recognition dictionary and said second recognition dictionary;
- font identifying means for identifying one of said first and second recognition dictionaries which stores the recognized character based on the recognition result;
- and
- output control means for outputting the recognized character in a color corresponding to the identified type of font.
A character recognizing method comprising the steps of:
- extracting a feature from an input character image;
- recognizing a character by matching the feature extracted at said extracting step with a standard pattern stored in a first recognition dictionary for storing a standard pattern of a first kind of font and a second recognition dictionary for storing a standard pattern of a second kind of font;
- identifying one of the first and second recognition dictionaries which stores the candidate character based on the recognition result;
- and
- outputting the recognized character in a color corresponding to the identified type of font.
A computer-useable medium storing computer-useable instructions for causing a processor, in a character recognizing apparatus having a recognition dictionary for storing a standard pattern of a character, to perform character recognition, the instructions comprising instructions for:
- (a) causing the processor to extract a feature from an input character image;
- (b) causing the processor to recognize a character and a type of font used therefor from the input character image by matching the extracted feature with the standard pattern stored in the recognition dictionary;
- and
- (c) causing the processor to output the recognized character in a color corresponding to the type of font recognized at step (b).
A computer-useable medium storing computer-useable instructions for causing a processor, in a character recognizing apparatus having a first recognition dictionary for storing a standard pattern of a first kind of font and a second recognition dictionary for storing a standard pattern of a second kind of font, to perform character recognition, the instructions comprising instructions for:
- causing the processor to extract a feature from an input character image;
- causing the processor to recognize a character by matching the extracted feature with the standard pattern stored in the first recognition dictionary and the second recognition dictionary;
- causing the processor to identify one of the first and second recognition dictionaries which stores the recognized character based on the recognition result;
- and
- causing the processor to output the recognized character in a color corresponding to the identified type of font.
Dependencies are inferred from the claim text.