METHOD OF READING CHARACTERS AND METHOD OF READING POSTAL ADDRESSES

Patent №

US 6,246,794

Granted

2001-06-12

Filed 1996

Owner

HITACHI, LTD.

Lab

AI components

2

nlp · vision

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

08763515

A character reading method has enhanced character segmentation accuracy and character string recognition accuracy for reading correctly hand-written addresses on postal matters. The method extracts provisional character patterns from image information of the address character string (step 206), creates a table 219 of tentative character patterns and implements the character classification for the tentative character patterns (step 207), extracts, specifically for characters of the street number portion of the address character string, periphery information (vertical and horizontal lengths, vertical/horizontal length ratio, pattern spacings, etc.) of tentative character patterns (step 212), and segments the character string into characters accurately based on the information (step 215).

Natural languageVisionG06V 30/153G06V 10/20G06V 30/262G06V 30/10

AI classification

Vision1.00
Natural language1.00
AI hardware0.39
Machine learning0.18
Knowledge representation0.00
Speech0.00
Evolutionary computation0.00
Planning0.00

Ownership

HITACHI, LTD.

assignment · 83490230

Assignors

KAGEHIRO, TATSUHIKO, KOGA, MASASHI, SAKO, HIROSHI, FUJISWA, HIROMICHI, OGATA, HISA, SHIMA, YOSHIHIRO, WATANABE, SHIGERU, TERAMOTO, MASATO

On an employer assignment, the assignors are typically the inventors.

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