CHARACTER LINE RECOGNITION METHOD AND CHARACTER LINE RECOGNITION DEVICE
First Claim
1. A character line recognition method for processing image data obtained by scanning a character line on a medium to recognize the character line, the method comprising:
- processing the image data into monochrome binary format image data by using a predetermined binarization standard threshold;
extracting character features from each character that composes the character line to calculate similarity with respect to standard character features;
temporarily determining characters based on the similarity;
calculating basic statistics of the similarity for all the characters which have been temporarily determined; and
changing the binarization standard threshold based on the basic statistics and then returning to the processing the image data.
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Accused Products
Abstract
A character line recognition method for processing image data obtained by scanning a character line on a medium to recognize the character line may include processing the image data into monochrome binary format image data by using a predetermined binarization standard threshold; extracting character features from each character that composes the character line to calculate similarity with respect to standard character features; temporarily determining characters based on the similarity; calculating basic statistics of the similarity for all the characters which have been temporarily determined; and changing the binarization standard threshold based on the basic statistics and then returning to the processing the image data.
18 Citations
11 Claims
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1. A character line recognition method for processing image data obtained by scanning a character line on a medium to recognize the character line, the method comprising:
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processing the image data into monochrome binary format image data by using a predetermined binarization standard threshold; extracting character features from each character that composes the character line to calculate similarity with respect to standard character features; temporarily determining characters based on the similarity; calculating basic statistics of the similarity for all the characters which have been temporarily determined; and changing the binarization standard threshold based on the basic statistics and then returning to the processing the image data. - View Dependent Claims (2, 3, 4, 5, 10)
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6. A character line recognition method for processing image data obtained by scanning a character line on a medium to recognize the character line, the method comprising:
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processing the image data into monochrome binary format image data by using a predetermined binarization standard threshold; extracting character features from each character composing the character line to calculate similarity with respect to standard character features; temporarily determining characters based on the similarity; classifying a recognition result of the entire character line, which includes all the characters temporarily determined, into one of a plurality of evaluation categories; and changing the binarization standard threshold based on the evaluation category in which the recognition result is classified and then returning to the processing the image data. - View Dependent Claims (7, 8, 9, 11)
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Specification