Optical Panel Inspection Using Explicit Band Gaussian Filtering Methods in Discrete Cosine Domain

Optical Panel Inspection Using Explicit Band Gaussian Filtering Methods in Discrete Cosine Domain

Capacitive touch panels (CTPs) have the merits of being waterproof, antifouling, scratch resistant, and capable of rapid response, making them more popular in various touch electronic products. However, the CTP has a multilayer structure, and the background is a directional texture. The inspection w...

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Bibliographic Details
Main Authors: Hong-Dar Lin, Huan-Hua Tsai, Chou-Hsien Lin, Hung-Tso Chang
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Sensors
Subjects:
touch panel
defect detection
directional texture
discrete cosine transform
frequency domain filtering
Online Access:https://www.mdpi.com/1424-8220/23/3/1737

Internet

https://www.mdpi.com/1424-8220/23/3/1737

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