Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1992-05-29
1994-06-07
Dayoan, D. Glenn
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209587, 209639, 209939, 382 8, 382 28, 348125, 348 91, B07C 5342, B07C 500
Patent
active
053181735
ABSTRACT:
An apparatus and a method sort items, such as pickles, having defective shapes, such as holes. A video camera scans moving items and acquires lines of image data including item-colored data and background-colored data. The lines of image data are sent to an image processor and compiled into a 64 line "frame" of image data that are further processed to identify the coordinates of individual items and to compute the size of each item. Because holes in an item are the same color as the background color, the invention provides a device differentiating holes from the background. A "hole-bounding box" is scaled to fit within the item position coordinates. The number of background-colored pixels inside the hole-bounding box is computed and compared to a user-defined threshold number. An item is classified as defective if the threshold number is exceeded. Whenever the image processor classifies an item as defective, centroid position coordinates of the item are reported to a master processor for subsequent rejection of the item.
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Dayoan D. Glenn
Nguyen Tuan N.
Simco/Ramic Corporation
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