JP2936426B

• Main Author: YUSHIMO RYOICHI
• Format: Patent
• Language: English
• Published: 23.08.1999
• Edition: 6
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; HANDLING RECORD CARRIERS; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

PURPOSE:To reduce the processing time of the title device by finding the certainty of a word by adding a correcting value to the word on the basis of the product of the recognizing accuracy of each character and statistically obtained neighboring frequency of each character and giving priority to spell checking candidate character strings. CONSTITUTION:A picture inputting section 1 inputs a document to be recognized as a document picture. A sentence segmenting section 2 finds the histogram of black picture elements of the document picture in the vertical and horizontal directions and discovers a sentence area. A word area segmenting section 3 segments characters between spaces having widths larger than a certain value as a word area. A character area segmenting section 4 divides a train of characters in the word area into individual characters by regarding the part where the histogram of black picture elements in the word area is lower than a certain value as a punctuation of characters and segments the divided characters as character areas. A character recognizing section 5 performs character recognition on each character. The recognizing accuracy of a word is found by adding correcting values to each other on the basis of the product of the recognizing accuracy of each character and neighboring frequency 8 of each character. Then spell checking 7 is performed on the words in the order of the recognizing accuracy.