Title:
SHADOW ELIMINATION DEVICE AND METHOD, EMPTY DISK RECOGNITION DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2023/280080
Kind Code:
A1
Abstract:
The present application relates to a shadow elimination device and method, and an empty disk recognition device and method. The shadow elimination device comprises: an image acquisition module, which is used for acquiring a fill light image and a non-fill light image; an illumination area image acquisition module, which obtains an illumination area image according to the difference between the fill light image and the non-fill light image; an edge detection module, which performs edge detection on the non-fill light image to obtain an edge image; and a shadow line elimination module, which removes, from the edge image, a portion corresponding to the illumination area image to obtain an actual edge image.
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Inventors:
CHEN ZHIQIANG (CN)
ZHANG LI (CN)
TANG HU (CN)
SUN YUNDA (CN)
LI DONG (CN)
YAN DAN (CN)
ZHANG LI (CN)
TANG HU (CN)
SUN YUNDA (CN)
LI DONG (CN)
YAN DAN (CN)
Application Number:
PCT/CN2022/103447
Publication Date:
January 12, 2023
Filing Date:
July 01, 2022
Export Citation:
Assignee:
NUCTECH CO LTD (CN)
NUCTECH JIANGSU COMPANY LTD (CN)
UNIV TSINGHUA (CN)
NUCTECH JIANGSU COMPANY LTD (CN)
UNIV TSINGHUA (CN)
International Classes:
G06T5/00
Foreign References:
| JP2018098583A | 2018-06-21 | |||
| CN107146210A | 2017-09-08 | |||
| CN113033545A | 2021-06-25 | |||
| CN107451546A | 2017-12-08 | |||
| JP2017123069A | 2017-07-13 | |||
| US20200126202A1 | 2020-04-23 |
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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