Method and apparatus for detecting and utilizing frame fill info

Details Method and apparatus for detecting and utilizing frame fill info Method and apparatus for detecting and utilizing frame fill info

1993-04-26

1994-10-04

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

209586, 382 8, 356386, G01N 904

Patent

active

053528883

ABSTRACT:
Apparatus and method for measuring the reflectivity of a product for use in optical sorting machines that is insensitive to product size and orientation. The percentage reflectivity of a product passing a background is corrected by a frame fill factor, which is representative of the percentage of the viewing frame occupied by the product being sorted.

REFERENCES:
patent: 3808447 (1974-04-01), Leavens, Jr.
patent: 4096949 (1978-06-01), Hoover et al.
patent: 4147619 (1979-04-01), Wassmer et al.
patent: 4647211 (1987-03-01), Browne et al.
patent: 4666045 (1987-05-01), Gillespie et al.
patent: 4825068 (1989-04-01), Suzuki et al.

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