Apparatus and method for detecting book document along the longi

Details Apparatus and method for detecting book document along the longi Apparatus and method for detecting book document along the longi

1998-04-15

2000-09-26

Coles, Edward L.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358488, 358464, 358493, 358494, 358497, 382199, 382195, 382316, H04N 104, H04N 138, G06K 948, G06K 946, G06K 930

Patent

active

061249505

ABSTRACT:
An image reading apparatus is disclosed which reads from above a book document mounted as opened upwardly. This image reading apparatus decides the positions of face terminal parts of the document by detecting longitudinal edges in accordance with differences in luminance contrasts which occur in the face part of document and the lateral face part of document in the lateral direction of an image and further detecting the pattern of longitudinal edges due to the overlap of pages in the lateral face part of document and the amount of change of the position of the upper side edge of the document. The apparatus, therefore, is capable of accurately detecting the face of the document and the lateral face of the document and producing exclusively the image of the face of the document in spite of the presence of an index, a pattern of black frame, or a black background in the terminal parts of the face of the document.

REFERENCES:
patent: 5084611 (1992-01-01), Okisu et al.
patent: 5377019 (1994-12-01), Okisu et al.
patent: 5416609 (1995-05-01), Matsuda et al.
patent: 5463697 (1995-10-01), Toda et al.
patent: 5610720 (1997-03-01), Fujioka et al.
patent: 5677776 (1997-10-01), Matsuda et al.
patent: 5805272 (1998-09-01), Nozawa et al.
patent: 5886342 (1999-03-01), Matsui
patent: 6011635 (2000-01-01), Bungo et al.

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