Saturated Imaging for Inspecting Transparent Aesthetic Defects in a Polymeric Polarizer with Black and White Stripes

Machine vision systems have been widely used in industrial production lines because of their automation and contactless inspection mode. In polymeric polarizers, extremely slight transparent aesthetic defects are difficult to detect and characterize through conventional illumination. To inspect such...

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Main Authors:	Cilong Yu, Peibing Chen, Xiaopin Zhong, Xizhou Pan, Yuanlong Deng
Format:	Article
Language:	English
Published:	MDPI AG 2018-05-01
Series:	Materials
Subjects:	polymeric polarizer transparent aesthetic defect machine vision saturated imaging
Online Access:	http://www.mdpi.com/1996-1944/11/5/736

id	doaj-40a3090445774b008fb96aca994a81f4
record_format	Article
spelling	doaj-40a3090445774b008fb96aca994a81f42020-11-24T23:16:38ZengMDPI AGMaterials1996-19442018-05-0111573610.3390/ma11050736ma11050736Saturated Imaging for Inspecting Transparent Aesthetic Defects in a Polymeric Polarizer with Black and White StripesCilong Yu0Peibing Chen1Xiaopin Zhong2Xizhou Pan3Yuanlong Deng4College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, ChinaCollege of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, ChinaCollege of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, ChinaCollege of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, ChinaCollege of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, ChinaMachine vision systems have been widely used in industrial production lines because of their automation and contactless inspection mode. In polymeric polarizers, extremely slight transparent aesthetic defects are difficult to detect and characterize through conventional illumination. To inspect such defects rapidly and accurately, a saturated imaging technique was proposed, which innovatively uses the characteristics of saturated light in imaging by adjusting the light intensity, exposure time, and camera gain. An optical model of defect was established to explain the theory by simulation. Based on the optimum experimental conditions, active two-step scanning was conducted to demonstrate the feasibility of this detection scheme, and the proposed method was found to be efficient for real-time and in situ inspection of defects in polymer films and products.http://www.mdpi.com/1996-1944/11/5/736polymeric polarizertransparent aesthetic defectmachine visionsaturated imaging
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Cilong Yu Peibing Chen Xiaopin Zhong Xizhou Pan Yuanlong Deng
spellingShingle	Cilong Yu Peibing Chen Xiaopin Zhong Xizhou Pan Yuanlong Deng Saturated Imaging for Inspecting Transparent Aesthetic Defects in a Polymeric Polarizer with Black and White Stripes Materials polymeric polarizer transparent aesthetic defect machine vision saturated imaging
author_facet	Cilong Yu Peibing Chen Xiaopin Zhong Xizhou Pan Yuanlong Deng
author_sort	Cilong Yu
title	Saturated Imaging for Inspecting Transparent Aesthetic Defects in a Polymeric Polarizer with Black and White Stripes
title_short	Saturated Imaging for Inspecting Transparent Aesthetic Defects in a Polymeric Polarizer with Black and White Stripes
title_full	Saturated Imaging for Inspecting Transparent Aesthetic Defects in a Polymeric Polarizer with Black and White Stripes
title_fullStr	Saturated Imaging for Inspecting Transparent Aesthetic Defects in a Polymeric Polarizer with Black and White Stripes
title_full_unstemmed	Saturated Imaging for Inspecting Transparent Aesthetic Defects in a Polymeric Polarizer with Black and White Stripes
title_sort	saturated imaging for inspecting transparent aesthetic defects in a polymeric polarizer with black and white stripes
publisher	MDPI AG
series	Materials
issn	1996-1944
publishDate	2018-05-01
description	Machine vision systems have been widely used in industrial production lines because of their automation and contactless inspection mode. In polymeric polarizers, extremely slight transparent aesthetic defects are difficult to detect and characterize through conventional illumination. To inspect such defects rapidly and accurately, a saturated imaging technique was proposed, which innovatively uses the characteristics of saturated light in imaging by adjusting the light intensity, exposure time, and camera gain. An optical model of defect was established to explain the theory by simulation. Based on the optimum experimental conditions, active two-step scanning was conducted to demonstrate the feasibility of this detection scheme, and the proposed method was found to be efficient for real-time and in situ inspection of defects in polymer films and products.
topic	polymeric polarizer transparent aesthetic defect machine vision saturated imaging
url	http://www.mdpi.com/1996-1944/11/5/736
work_keys_str_mv	AT cilongyu saturatedimagingforinspectingtransparentaestheticdefectsinapolymericpolarizerwithblackandwhitestripes AT peibingchen saturatedimagingforinspectingtransparentaestheticdefectsinapolymericpolarizerwithblackandwhitestripes AT xiaopinzhong saturatedimagingforinspectingtransparentaestheticdefectsinapolymericpolarizerwithblackandwhitestripes AT xizhoupan saturatedimagingforinspectingtransparentaestheticdefectsinapolymericpolarizerwithblackandwhitestripes AT yuanlongdeng saturatedimagingforinspectingtransparentaestheticdefectsinapolymericpolarizerwithblackandwhitestripes
_version_	1725586573976666112

Saturated Imaging for Inspecting Transparent Aesthetic Defects in a Polymeric Polarizer with Black and White Stripes

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