Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1982-01-28
1985-01-15
Scherbel, David A.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209701, 209939, 358106, 382 45, B07C 534, H04N 718
Patent
active
044934203
ABSTRACT:
Image processing apparatus for detecting a bounded region of an image includes a scanning device such as a T.V. camera, to scan the image via a raster scan to produce a signal indicative of image intensity at a plurality of picture points and comparators to compare the image intensity at each of the picture points with that of a neighboring point in each of at least two directions to derive therefrom a difference value and thereby detect a positive-going or negative-going boundary. Picture points are labelled as corresponding to region boundaries whenever the difference values exceed a predetermined threshold value. The region boundaries are then expanded by labelling further picture points as region boundaries. All boundaries in a particular direction are expanded in the same direction irrespective of whether they are negative-going or positive-going. Thus, boundaries between neighboring picture elements along the scan line are expanded to successive neighboring picture elements along the scan line and boundaries between neighboring picture elements on neighboring scan lines are expanded to neighboring successive scan lines. The expanded boundaries are then subjected to a time-shift to superimpose the expanded boundaries for a region lying wholly within a bounded region of the image.
REFERENCES:
patent: 3887762 (1975-06-01), Uno et al.
patent: 3963866 (1976-06-01), Tanie
patent: 3976982 (1976-08-01), Eiselen
patent: 4122951 (1978-10-01), Alaminos
patent: 4163991 (1979-08-01), Burrig
patent: 4186836 (1980-02-01), Wassmer et al.
patent: 4242702 (1980-12-01), Kuni et al.
patent: 4319269 (1982-03-01), Kajiura et al.
patent: 4327375 (1982-04-01), Leclerc
patent: 4348277 (1982-09-01), Cowlin et al.
patent: 4351437 (1982-09-01), Long
patent: 4403294 (1983-09-01), Hamada et al.
patent: 4424530 (1984-01-01), Taylor
"Control Engineering", vol. 6, No. 1, p. 77, (Jan. 1969).
"Digital Picture Processing", Rosenfeld et al., pp. 272-369, (1976).
Lockwood Graders (U.K.) Limited
Scherbel David A.
Wacyra Edward M.
LandOfFree
Method and apparatus for detecting bounded regions of images, an does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for detecting bounded regions of images, an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting bounded regions of images, an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1477912