Title:
WORKPIECE INSPECTION METHOD, DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM
Document Type and Number:
Japanese Patent JP2021118003
Kind Code:
A
Abstract:
To provide a workpiece inspection method for evaluating the quality of a workpiece by using an image collection technique, a device, and a computer-readable storage medium.SOLUTION: A workpiece inspection method includes: radiating a ring light which emits light beams in different colors from different ring sub-lights to collect an image of the workpiece, in which a collecting unit comprises a plurality of ring sub-lights arranged in order from a side close to a workpiece to a side far therefrom with respect to the workpiece to be inspected having an arcuate curved surface toward the ring light; performing processing on the collected image to acquire a plurality of image areas in which different image areas are different in color and the colors of the image areas and the colors of the light beams emitted from the ring sub-lights correspond with each other one by one; and inputting image characteristic parameters of the plurality of image areas to a predetermined workpiece quality inspection model to obtain a workpiece quality inspection result.SELECTED DRAWING: Figure 1
Inventors:
WANG ZHICHENG
ZHANG YIFEI
ZHANG YIFEI
Application Number:
JP2021008499A
Publication Date:
August 10, 2021
Filing Date:
January 22, 2021
Export Citation:
Assignee:
RICOH CO LTD
International Classes:
G06T7/00
Domestic Patent References:
| JPH09275272A | 1997-10-21 | |||
| JP2008209320A | 2008-09-11 | |||
| JP2006220648A | 2006-08-24 | |||
| JP2006258796A | 2006-09-28 |
Foreign References:
| US20060257015A1 | 2006-11-16 |
Other References:
D.W. CAPSON ET AL.: "A tiered-color illumination approach for machine inspection of solder joints", IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE, vol. 10, no. 3, JPN6022000451, May 1988 (1988-05-01), pages 387 - 393, XP002243987, ISSN: 0004754183, DOI: 10.1109/34.3902
FUPEI WU ET AL.: "An AOI algorithm for PCB based on feature extraction", 2008 7TH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION, JPN6022000449, 25 July 2008 (2008-07-25), CN, pages 240 - 247, ISSN: 0004754184
FUPEI WU ET AL.: "An AOI algorithm for PCB based on feature extraction", 2008 7TH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION, JPN6022000449, 25 July 2008 (2008-07-25), CN, pages 240 - 247, ISSN: 0004754184
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito