Hitachi, Ltd.

Kiyomichi Kurino

Hiromichi Fujisawa

Tsugio Takahashi

Tatsuya Murakami

Hidefumi Masuzaki

Masaaki Fujinawa

Yoshihiro Shima

Masashi Koga

Hiroshi Sakou

Yasuaki Nakano

Hitoshi Komatsu

Kazunori Kinoshita

Shozo Kadota

A file document image input can have shading removed to produce a deshaded image that is useful for highly efficient compression encoding, to be thereafter stored and transmitted in such efficient encoded form. When the image is retrieved or received, the decoded and deshaded image may have shading returned to it by combining with a shaded template image stored in the template image memory or by synthesizing shading in specified regions. By removing shading from regions, optical character recognition, shading identification or other processing such as smear prevention can be enhanced.

Document image processing system and document image processing method

Pattern segmentation and recognition in which hand-written characters are transformed electrically into 2-dimensional image patterns, wherein if ambiguity exists in segmenting a unit pattern including a character from the image patterns, character recognition is not made compulsively, but a plurality of possible unit patterns are first established. Then, the various unit patterns are segmented, and each unit pattern is identified to be a partial pattern, linked patterns, etc., so that each character is recognized on a basis of total judgement, whereby ambiguity of segmentation is resolved.

System and method for segmentation and recognition of patterns

Growing community of inventors

Ashigarashimo, Japan

Kiyomichi Kurino