Title:
A method and a device for guaranteeing the minimum contrast for a machine vision system
Document Type and Number:
Japanese Patent JP6187584
Kind Code:
B2
Abstract:
In one aspect, this disclosure presents a method and apparatus for verifying that minimum object contrast requirements are met within a region representing a volume to be monitored by a machine vision system. In complementary fashion, the disclosure also presents a methodology for constraining the positions of the lighting sources to be used for illuminating the monitored volume at a minimum height above the floor, and for the use of a key light that provides asymmetrical lighting within the monitored volume relative to the camera(s) used for imaging the monitored volume. Correspondingly, the disclosure also presents a method and apparatus for monitoring for proper operation of the key light and responding to improper operation. The minimum contrast verification and key light monitoring operations can be implemented using standalone apparatuses, or can be incorporated into the machine vision system.
More Like This:
| JP6939112 | Image forming device and image forming method |
| WO/1991/003704 | OBJECT RECOGNITION METHOD BY OTPICAL CUTTING METHOD |
| JPH01316609 | DEVICE FOR DETECTING POSITION OF OBJECT |
Inventors:
Kinoshita Koichi
Tiagi, unbrish
Drincard, John
Kito Tani
Tiagi, unbrish
Drincard, John
Kito Tani
Application Number:
JP2015512713A
Publication Date:
August 30, 2017
Filing Date:
May 13, 2013
Export Citation:
Assignee:
OMRON Corporation
International Classes:
G01B11/00; B25J19/04; G06T1/00; H04N5/225; H04N13/239
Domestic Patent References:
| JP2007286048A | ||||
| JP2011228857A | ||||
| JP2005227581A |
Attorney, Agent or Firm:
Fukami patent office