Image analysis – Histogram processing – For setting a threshold
Patent
1988-08-19
1991-07-30
Moore, David K.
Image analysis
Histogram processing
For setting a threshold
358474, 382 50, 382 65, G06K 900
Patent
active
050365452
ABSTRACT:
In a picture image reading system having a scanning system for scanning the surface of a picture image medium with light beams, an optical system for condensing the light beams transmitted through or reflected from the picture image medium and dividing the light beam into a plurality of light beams, and a plurality of density readers respectively responsive to the plurality of light beam where each density reader reads a predetermined ranges of density signals different from the ranges read by the remaining density readers, the improvement comprising a device for so establishing the density signal ranges read by the readers that adjacent density signal ranges partially overlap one another; a detecting device responsive to the density signals from the plurality of readers for detecting density signals occurring in overlapping portions where the density signal ranges of adjacent readers overlap and providing an overlap signal indicative of the occurrence; and a synthesizing device responsive to the density signals read from the plurality of readers and the overlap signal for connecting the density signals from the plurality of readers to synthesize a composite density signal corresponding to the entire density range of the picture.
REFERENCES:
patent: 3104372 (1963-09-01), Rabinow et al.
patent: 3166743 (1965-01-01), Greenwald
patent: 3688266 (1972-08-01), Watanabe et al.
patent: 3973239 (1976-08-01), Kakumoto et al.
patent: 4054916 (1977-10-01), Knop
patent: 4251837 (1981-02-01), Janeway, III
patent: 4484232 (1984-11-01), Gast
patent: 4491964 (1985-01-01), Sanner
patent: 4520505 (1985-05-01), Yamamoto et al.
patent: 4554594 (1985-11-01), Ciardiello et al.
patent: 4575768 (1986-03-01), Sakai et al.
Horiba Isao
Iida Yoshihiko
Ikeda Mitsuru
Ishikawa Ken
Hitachi Medical Corporation
Mancuso Joseph
Moore David K.
LandOfFree
Picture image reading system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Picture image reading system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Picture image reading system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1547501