Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1992-12-22
1995-03-07
Britton, Howard W.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
H04N 718
Patent
active
053962605
ABSTRACT:
Mineral content in processed ore and coal content in coal slurries are determined using a video system. A video image is taken of a sample, the video image is digitized, and gray levels are assigned to points or areas on the video image. The distribution of the gray levels for the image provides an indication of the purity of the minerals in the ore sample. The mean gray level for the image provides an indication of the mineral content of interest in the sample. The video system should be calibrated using ores that normally occur in the process environment and using samples of controlled moisture content. The video system has particular utility in determining phosphate content and calcium ratio in phosphate ores.
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Adel Gregory T.
Luttrell Gerald H.
Yoon Roe-Hoan
Britton Howard W.
Lee Richard
The Center for Innovative Technology
Virginia Polytechnic Institute & State University
Virginia Tech Intellectual Properties Inc.
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