Image analysis – Histogram processing – For setting a threshold
Patent
1991-08-30
1994-04-12
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
382 18, 382 23, 382 1, 356432, 348142, G06K 900, G06K 946, G01N 2100, H04N 718
Patent
active
053033108
ABSTRACT:
The relative concentration of opaque and translucent ore particles is determined by illuminating a falling stream of particles with a source of backlighting which provides a diffused background light source for detecting opaque particles and a relatively brighter light source for further illuminating translucent particles. Scanning a captured image of the falling particle stream for light and dark light images relative to the background light permits the relative concentration of opaque and translucent particles to be determined. The method is particularly useful for beneficiated composite phosphate ores containing desirable opaque phosphate particles and undesired translucent quartz particles.
REFERENCES:
patent: 2494441 (1950-01-01), Hillier
patent: 2536693 (1951-01-01), Okolicsanyi
patent: 2707555 (1955-05-01), Gaudin
patent: 3011634 (1961-12-01), Hutter et al.
patent: 3052353 (1962-09-01), Pritchett
patent: 3053388 (1962-09-01), Tittle
patent: 3305089 (1967-02-01), Fraenkel
patent: 3356211 (1967-12-01), Mathews
patent: 3395793 (1968-08-01), Thompson et al.
patent: 3472375 (1969-10-01), Mathews
patent: 3617631 (1971-11-01), Soames
patent: 3705383 (1972-12-01), Frayer
patent: 3746265 (1973-07-01), Dancy
patent: 3791744 (1974-02-01), Erny et al.
patent: 3936188 (1976-02-01), Sawyer
patent: 3962403 (1976-06-01), Wyslouzil
patent: 3977526 (1976-08-01), Gordon et al.
patent: 4064534 (1977-12-01), Chen et al.
patent: 4088552 (1978-05-01), Morrison et al.
patent: 4122952 (1978-10-01), Richards
patent: 4136950 (1979-01-01), Labrum et al.
patent: 4140601 (1979-02-01), Gomberg
patent: 4169045 (1979-09-01), Moudgil et al.
patent: 4204950 (1980-05-01), Burford, Jr.
patent: 4210311 (1980-07-01), Stone
patent: 4231478 (1980-11-01), Stone
patent: 4266675 (1981-05-01), Barwise et al.
patent: 4361238 (1982-11-01), Kealy et al.
patent: 4371265 (1983-02-01), Mitsuhashi
patent: 4462495 (1984-07-01), McKinley et al.
patent: 4532545 (1985-07-01), Hanson
patent: 4561018 (1985-12-01), Berthel et al.
patent: 4592082 (1986-05-01), Pawloski
patent: 4617682 (1986-10-01), Mori et al.
patent: 4629709 (1986-12-01), Cofler et al.
patent: 4814868 (1989-03-01), James
patent: 4918739 (1990-04-01), Lorente et al.
patent: 4965841 (1990-10-01), Kaneko et al.
patent: 5011595 (1991-04-01), Meenan et al.
Beneficiation at Large Particle Size Using Photometric Sorting Techniques, Mark A. Schapper, Ph.D., M.Sc., Australian Mining, May 1977.
Selection and Sizing of Ore Sorting Equipment, A. M. Stone, Chapter, 17, pp. 261-267.
Industrial Minerals Beneficiation By Ore Sorting, Bo R. Arvidson, Ph.D., Ore Sorters (North America) Inc., pp. 1-11.
Boudreau Leo H.
Cammarata Michael
IMC Fertilizer, Inc.
LandOfFree
Method and apparatus for image analysis of composite ores 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 image analysis of composite ores, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for image analysis of composite ores will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2105707