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1. (WO2018176370) VISUAL INSPECTION SYSTEM AND METHOD

Pub. No.:    WO/2018/176370    International Application No.:    PCT/CN2017/078962
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Sat Apr 01 01:59:59 CEST 2017
IPC: G01N 21/88
Applicants: SHENZHEN A&E INTELLIGENT TECHNOLOGY INSTITUTE CO., LTD.
深圳配天智能技术研究院有限公司
Inventors: YANG, Guang
阳光
HAO, Shaohua
郝少华
NIU, Litao
牛立涛
Title: VISUAL INSPECTION SYSTEM AND METHOD
Abstract:
Disclosed are a visual inspection system and method. The method comprises: acquiring a first inspection image (21, 31) and a second inspection image (22, 32) of an object to be inspected (14) under different illumination conditions and/or photographing conditions (S11); and carrying out mathematical operations on luminance values of corresponding positions on the first inspection image (21, 31) and the second inspection image (22, 32) and then distinguishing a target to be inspected and interference on the object to be inspected (14) (S12). A target to be inspected and interference are effectively distinguished by using the synthesis of two inspection images acquired under different illumination conditions and/or photographing conditions.