Machine vision-based singulation verification system and method

Details Machine vision-based singulation verification system and method Machine vision-based singulation verification system and method

2005-09-13

2005-09-13

Bali, Vikkram (Department: 2623)

Image analysis

Applications

Manufacturing or product inspection

C382S101000

Reexamination Certificate

active

06944324

ABSTRACT:
A system and method for detecting multiple object conditions, such as side-by-side and overlapped objects, such as packages, on a conveyor. The system includes at least one machine vision system including at least one machine vision camera, at least one illumination subsystem and at least one machine vision computer. The illumination subsystem(s) is configured to illuminate a plurality of objects as they are conveyed past at least one field of view at an inspection station along a conveyor belt. Each machine vision camera is positioned to capture one or more images of the objects as the objects are conveyed past the field of view(s). Each machine vision computer is programmed to detect the presence of multiple object conditions by detecting and counting the number of edges appearing in an image of an object captured by one of the machine vision cameras. The method illuminates at least one object as it passes through the field of view, at which time at least one image of the object is captured. Next, each captured image is processed using a machine vision computer by windowing each parcel using a Region of Interest (ROI) and counting the number of edges appearing within the ROI. The presence of other than a single package condition is determined if the number of edges exceeds four.

REFERENCES:
patent: 3692980 (1972-09-01), Getker et al.
patent: 3868478 (1975-02-01), Zeenkov
patent: 5966457 (1999-10-01), Lemelson

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