Character recognition method and apparatus

A character recognition method comprising the steps of:

• inputting a plurality of strokes which collectively form a character;
• classifying each stroke of the input strokes into one of a plurality of different types;
• extracting input strokes which are classified into one type;
• calculating a value of analogy between the strokes which are classified as said type and stroke information of said type for a character stored in a dictionary;
• forming an analogy matrix comprising calculated values of analogy as elements thereof;
• detecting a maximum matrix element in each of a plurality of columns or in each of a plurality of rows of the analogy matrix;
• designating the detected maximum matrix elements as maximum analogous elements;
• determining whether or not there is one maximum matrix element in each row or each column of the analogy matrix;
• selecting a maximum matrix element so that only one maximum matrix element is present in each row or each column, in a case that there is more than one maximum matrix element in a row or column;
• detecting a maximum analogous character from a plurality of characters stored in the dictionary according to values of analogy between input strokes classified as a particular type and stroke information of the particular type for each of the plurality of characters stored in the dictionary;
• and
• outputting said maximum analogous character.

A character recognition apparatus comprising:

• input means for inputting a plurality of strokes constituting a character, the strokes being represented by a direction component and a coordinate position;
• rearrangement means for rearranging the input strokes according to a sequence and a position of the input strokes;
• calculating means for calculating a one-to-one correspondence value of analogy between input strokes rearranged by said rearrangement means and stroke information stored in the dictionary;
• detection means for detecting a maximum analogous character according to the calculated values of analogy;
• and
• output means for outputting said maximum analogous character.

A character recognition method comprising the steps of:

• inputting a plurality of strokes represented by a direction component and a coordinate position;
• rearranging the input strokes according to a sequence and a position of the input strokes;
• calculating a one-to-one correspondence value of analogy between input strokes rearranged in said rearrangement step and stroke information stored in the dictionary;
• detecting a maximum analogous character according to the calculated values of analogy;
• and
• outputting said maximum analogous character.

A computer-readable medium having stored thereon computer-executable process steps, the computer-executable process steps comprising:

• an inputting step to input a plurality of strokes which collectively form a character;
• a classifying step to classify each stroke of the input strokes into one of a plurality of different types;
• an extracting step to extract input strokes which are classified into one type;
• a calculating step to calculate a value of analogy between the strokes which are classified as said type and stroke information of said type for a character stored in a dictionary;
• a forming step to form an analogy matrix comprising calculated values of analogy as elements thereof;
• a detecting step to detect a maximum matrix element in each of a plurality of columns or in each of a plurality of rows of the analogy matrix;
• a designating step to designate the detected maximum matrix elements as maximum analogous elements;
• a determining step to determine whether or not there is one maximum matrix element in each row or each column of the analogy matrix;
• a selecting step to select a maximum matrix element so that only one maximum matrix element is present in each row or each column, in a case that there is more than one maximum matrix element in a row or column;
• a detecting step to detect a maximum analogous character from a plurality of characters stored in the dictionary according to values of analogy between input strokes classified as a particular type and stroke information of the particular type for each of the plurality of characters stored in the dictionary;
• and
• an outputting step to output said maximum analogous character.

A computer-readable medium having stored thereon computer-executable process steps, the computer-executable process steps comprising:

• an inputting step to input a plurality of strokes represented by a direction component and a coordinate position;
• a rearranging step to rearrange the input strokes according to a sequence and a position of the input strokes;
• a calculating step to calculate a one-to-one correspondence value of analogy between rearranged input strokes and stroke information stored in the dictionary;
• a detecting step to detect a maximum analogous character according to the calculated values of analogy;
• and
• an outputting step to output said maximum analogous character.