Apparatus and method for recognizing a character image from an image screen
First Claim
1. An apparatus for recognizing a character image from a document, comprising:
- an input unit for generating commands for a recognition mode, a correction mode and a storage mode;
a pre-processor for analyzing pixels of a document image in the recognition mode, classifying the document image into at least one Character Block (GB) and at least one Background Block (BB) on the basis of a result of the analysis, binarizing pixels of the BB and generating a pre-processed document image;
a character recognizer for recognizing the pre-processed document image and converting the recognized pre-processed document image into character data;
a recognition error processor for correcting or replacing erroneously recognized character data selected by the input unit with character data output by the input unit in the correction mode;
a database for storing the recognized character data in the storage mode; and
a display unit for displaying the document image and character data generated during operating of the modes,wherein the display unit displays a set of candidate characters corresponding to the erroneously recognized character data in correction mode and wherein the recognition error processor corrects or replaces the erroneously recognized character data with a candidate character selected from the displayed candidate characters.
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Accused Products
Abstract
A method and apparatus are provided for enabling a mobile terminal equipped with a camera to store document information. An image of a document picked up by the camera is displayed. In response to a document “RECOGNIZE” key input, a character image is recognized from the displayed document image and the character image is converted into character data. The character data is displayed on the first display area, and SAVE items are displayed on the second display area. A SAVE item is selected from the displayed SAVE items and character data associated with the selected SAVE item is selected, such that the selected SAVE item and the character data associated with the selected SAVE item can be displayed on the third display area. When a “CORRECT” key is input, candidate characters associated with an erroneously recognized character are displayed on the third display area. After the erroneously recognized character is corrected or replaced with a selected candidate character, a result of the correction is displayed on the third display area. When a “CONFIRM” key is input, the SAVE item and character data displayed on the third display area are stored.
38 Citations
32 Claims
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1. An apparatus for recognizing a character image from a document, comprising:
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an input unit for generating commands for a recognition mode, a correction mode and a storage mode; a pre-processor for analyzing pixels of a document image in the recognition mode, classifying the document image into at least one Character Block (GB) and at least one Background Block (BB) on the basis of a result of the analysis, binarizing pixels of the BB and generating a pre-processed document image; a character recognizer for recognizing the pre-processed document image and converting the recognized pre-processed document image into character data; a recognition error processor for correcting or replacing erroneously recognized character data selected by the input unit with character data output by the input unit in the correction mode; a database for storing the recognized character data in the storage mode; and a display unit for displaying the document image and character data generated during operating of the modes, wherein the display unit displays a set of candidate characters corresponding to the erroneously recognized character data in correction mode and wherein the recognition error processor corrects or replaces the erroneously recognized character data with a candidate character selected from the displayed candidate characters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for storing document information using a camera, comprising:
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an input unit for generating commands for a pickup mode, a recognition mode, a correction mode and a storage mode; a display unit having a first display area for displaying an input document image and character data recognized from the input document image, a second display area for displaying SAVE items, a third display area for displaying character data of a selected SAVE item, and another display area for displaying an operating mode menu; the camera driven in the pickup mode for detecting the document image; a pre-processor for analyzing pixels of the document image in the recognition mode, classifying the document image into at least one Character Block (CB) and at least one Background Block (BB) on the basis of a result of the analysis, binarizing pixels of the BB and generating a pre-processed document image; a character recognizer for recognizing the pre-processed document image and converting the recognized pre-processed document image into character data; a recognition error processor for correcting or replacing erroneously recognized character data selected by the input unit with character data output by the input unit in the correction mode; and a database for storing the recognized character data in the storage mode. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method for enabling a terminal device to recognize a character image from a document image, comprising the steps of:
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(a) designating an operating mode for document recognition; (b) analyzing pixels of the document image in the document recognition mode, classifying the document image into at least one Character Block (GB) and at least one Background Block (BB) on the basis of a result of the analysis, binarizing pixels of the BB and generating a pre-processed document image; (c) recognizing the pre-processed document image and converting the recognized pre-processed document image into character data; (d) selecting erroneously recognized character data, and correcting or replacing the erroneously recognized character data with input character data in a correction mode, further comprising steps of; (d-1) displaying candidate characters corresponding to the erroneously recognized character data in the correction mode; and (d-2) correcting or replacing the erroneously recognized character data with a candidate character selected from the displayed candidate characters; and (e) storing the recognized character data in a storage mode. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. A method for enabling a terminal device to recognize a character image from a document image, the terminal device including a display unit having a first display area for displaying a character image and character data, a second display area for displaying SAVE items, a third display area for displaying character data of a selected SAVE item, and another display area for displaying an operating mode menu, comprising the steps of:
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(a) displaying the document image picked up by a camera; (b) analyzing pixels of the document image in a document recognition mode, classifying the document image into at least one Character Block (CB) and at least one Background Block (BB) on the basis of a result of the analysis, binarizing pixels of the BB and generating a pre-processed document image; (c) recognizing the pre-processed document image, converting the recognized pre-processed document image into character data, displaying the character data on the first display area, displaying SAVE items associated with the character data on the second display area, and displaying the pre-processed document image on the first display area; (d) selecting a SAVE item from the displayed SAVE items, selecting character data associated with the selected SAVE item, and storing and displaying the selected character data; and (e) repeating the steps (a) to (d) and storing selected SAVE items and character data corresponding to the selected SAVE items. - View Dependent Claims (23, 24, 25, 26)
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27. A method for enabling a mobile terminal to recognize an image of a card bearing a person'"'"'s name and other information, the mobile terminal including a display unit having a first display area for displaying character data of the recognized card, a second display area for displaying SAVE items, a third display area for displaying character data of a selected SAVE item, and another display area for displaying an operating mode menu, comprising the steps of:
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(a) displaying the card image picked up by a camera; (b) analyzing pixels of the card image in a recognition mode, classifying the card image into at least one Character Block (CB) and at least one Background Block (BB) on the basis of a result of the analysis, binarizing pixels of the BB and generating a pre-processed card image; (c) converting the pre-processed card image into character data, displaying the character data on the first display area, and displaying SAVE items of the card associated with the character data on the second display area; (d) selecting a SAVE item from the displayed SAVE items, selecting character data associated with the selected SAVE item, and displaying the selected character data on the third display area; (e) selecting erroneously recognized character data, and correcting or replacing the erroneously recognized character data with input character data in a correction mode; and (f) storing the recognized character data in a storage mode. - View Dependent Claims (28, 29, 30, 31, 32)
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Specification