Title:
METHOD AND DEVICE FOR DETECTING POSITION OF STAIN ON TRANSPARENT MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/262133
Kind Code:
A1
Abstract:
A method and device for detecting the position of a stain (4, 5) on a transparent medium. A light source (2) is used on the outer side of the transparent medium (3) to perform strobing on and photograph each transparent medium (3) under detection from multiple angles to obtain a plurality of photographed images, and the forms of the stain (4, 5) on different photographed images are highlighted, so as to determine position information of the stain (4, 5). According to the device and method, the difficulty in determining whether the stain (4, 5) is located on the inner or outer side of the transparent medium (3) is greatly reduced, the detection precision is improved, the detection costs are lowered, the labor costs are lowered, and compared with existing manual visual modes, the detection efficiency is high, and the speed is high.
Inventors:
CHENG HONGCHI (CN)
Application Number:
PCT/CN2021/118453
Publication Date:
December 22, 2022
Filing Date:
September 15, 2021
Export Citation:
Assignee:
MILESTONE TECH SUZHOU CO LTD (CN)
International Classes:
G01N21/958; G01N21/00; G01N21/94
Domestic Patent References:
| WO2019111837A1 | 2019-06-13 |
Foreign References:
| CN209764751U | 2019-12-10 | |||
| CN102954970A | 2013-03-06 | |||
| CN111246204A | 2020-06-05 | |||
| CN111721782A | 2020-09-29 | |||
| CN104406988A | 2015-03-11 | |||
| CN112748071A | 2021-05-04 |
Attorney, Agent or Firm:
NANJING ZHONGGAO PATENT AGENCY CO., LTD. (CN)
Download PDF: