Machine vision apparatus and method for sorting objects

Details Machine vision apparatus and method for sorting objects Machine vision apparatus and method for sorting objects

1995-10-30

1997-12-30

Ruggiero, Joseph

Boots, shoes, and leggings

209581, 209586, 348 91, 382110, 382141, 364555, G06F 1900, B07C 5342

Patent

active

057037841

ABSTRACT:
An object is sorted into different classes by producing a video image of the object. The signal level discontinuities in the image are evaluated by first deriving a video signal gradient of each pixel in the image. Then the number of pixels in three different signal gradient ranges are counted to produce count parameters which combined indicate the areas of differing contrast in the object. The count parameters are utilized in a pair of discriminate functions which define the two classes and solution of the discriminate functions are used to determine the probability that the object fits within one class. In response to the probability the object is directed along either a first path associated with one class or along a second path associated with the other class.

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T. C. Pearson, D. C. Slaughter, and H. E. Studer, "Physical Properties of Pistachio Nuts," Transactions of the ASAE 37:913-918 (1994).

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