Method, device and computer program for recognition of a handwritten character
First Claim
1. A method for recognition of a handwritten character, which method comprises the steps of:
- determining a plurality of position features defining the handwritten character, andcomparing the handwritten character to reference characters stored in a database in order to find the closest matching reference character, said step of comparing comprising the steps of;
computing a difference between one of the plurality of position features of the handwritten character and a position feature of one of the reference characters,determining, by lookup in a predefined table, a distance measure based on the computed difference,repeating the steps of computing a difference and determining a distance measure for each of the plurality of position features of the handwritten character, andcomputing a cost function based on the determined distance measures.
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Abstract
A method for recognition of a handwritten character comprises the steps of determining a plurality of position features defining the handwritten character, and comparing the handwritten character to reference characters stored in a database in order to find the closest matching reference character. The step of comparing comprises the steps of computing a difference between one of the plurality of position features of the handwritten character and a corresponding position feature of one of the reference characters, determining, by lookup in a predefined table, a distance measure based on the computed difference and determining a distance measure for each of the plurality of position features of the handwritten character, and computing a cost function based on the determined distance measures. A device and a computer program for implementing the method are also described.
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Citations
22 Claims
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1. A method for recognition of a handwritten character, which method comprises the steps of:
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determining a plurality of position features defining the handwritten character, and comparing the handwritten character to reference characters stored in a database in order to find the closest matching reference character, said step of comparing comprising the steps of; computing a difference between one of the plurality of position features of the handwritten character and a position feature of one of the reference characters, determining, by lookup in a predefined table, a distance measure based on the computed difference, repeating the steps of computing a difference and determining a distance measure for each of the plurality of position features of the handwritten character, and computing a cost function based on the determined distance measures. - 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 device for recognition of a handwritten character and for transforming it into a digital format, comprising:
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means for determining a plurality of position features defining the handwritten character, a database, comprising reference characters, means for comparing the handwritten character to said reference characters of said database in order to find the closest, matching reference character, said means for comparing comprising; means for computing a difference between one of the plurality of position features of the handwritten character and a position feature of one of the reference characters, a predefined table, defining a distance measure based on differences in position features, means for determining a distance measure by lookup in said predefined table, and means for computing a cost function based on the determined distance measures. - View Dependent Claims (20, 21)
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22. A computer-readable medium storing instructions, which when executed by a computer, perform a method for recognition of a handwritten character, the method comprising:
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determining a plurality of position features defining the handwritten character, and comparing the handwritten character to reference characters stored in a database in order to find the closest matching reference character, said code for comparing comprising; computing a difference between one of the plurality of position features of the handwritten character and a position feature of one of the reference characters, determining, by lookup in a predefined table, a distance measure based on the computed difference, repeating the steps of computing a difference and determining a distance measure for each of the plurality of position features of the handwritten character, and computing a cost function based on the determined distance measures.
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Specification