Center Deviation Measurement of Color Contact Lenses Based on a Deep Learning Model and Hough Circle Transform

Ensuring the quality of color contact lenses is vital, particularly in detecting defects during their production since they are directly worn on the eyes. One significant defect is the “center deviation (CD) defect”, where the colored area (CA) deviates from the center point. Measuring the extent of...

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Main Authors: Gi-nam Kim, Sung-hoon Kim, In Joo, Gui-bae Kim, Kwan-hee Yoo
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/14/6533
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author Gi-nam Kim
Sung-hoon Kim
In Joo
Gui-bae Kim
Kwan-hee Yoo
author_facet Gi-nam Kim
Sung-hoon Kim
In Joo
Gui-bae Kim
Kwan-hee Yoo
author_sort Gi-nam Kim
collection DOAJ
description Ensuring the quality of color contact lenses is vital, particularly in detecting defects during their production since they are directly worn on the eyes. One significant defect is the “center deviation (CD) defect”, where the colored area (CA) deviates from the center point. Measuring the extent of deviation of the CA from the center point is necessary to detect these CD defects. In this study, we propose a method that utilizes image processing and analysis techniques for detecting such defects. Our approach involves employing semantic segmentation to simplify the image and reduce noise interference and utilizing the Hough circle transform algorithm to measure the deviation of the center point of the CA in color contact lenses. Experimental results demonstrated that our proposed method achieved a 71.2% reduction in error compared with existing research methods.
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spelling doaj.art-33eb10a3c310400da1fc4690a2f077212023-11-18T21:19:03ZengMDPI AGSensors1424-82202023-07-012314653310.3390/s23146533Center Deviation Measurement of Color Contact Lenses Based on a Deep Learning Model and Hough Circle TransformGi-nam Kim0Sung-hoon Kim1In Joo2Gui-bae Kim3Kwan-hee Yoo4Department of Computer Science, Chungbuk National University, Cheongju 28644, Republic of KoreaDepartment of Computer Science, Chungbuk National University, Cheongju 28644, Republic of KoreaDepartment of Computer Science, Chungbuk National University, Cheongju 28644, Republic of KoreaNeoVision Co., Ltd., Cheongju 28644, Republic of KoreaDepartment of Computer Science, Chungbuk National University, Cheongju 28644, Republic of KoreaEnsuring the quality of color contact lenses is vital, particularly in detecting defects during their production since they are directly worn on the eyes. One significant defect is the “center deviation (CD) defect”, where the colored area (CA) deviates from the center point. Measuring the extent of deviation of the CA from the center point is necessary to detect these CD defects. In this study, we propose a method that utilizes image processing and analysis techniques for detecting such defects. Our approach involves employing semantic segmentation to simplify the image and reduce noise interference and utilizing the Hough circle transform algorithm to measure the deviation of the center point of the CA in color contact lenses. Experimental results demonstrated that our proposed method achieved a 71.2% reduction in error compared with existing research methods.https://www.mdpi.com/1424-8220/23/14/6533computer visionimage segmentationDeepLabV3+Hough circle transformdeep learningdata augmentation
spellingShingle Gi-nam Kim
Sung-hoon Kim
In Joo
Gui-bae Kim
Kwan-hee Yoo
Center Deviation Measurement of Color Contact Lenses Based on a Deep Learning Model and Hough Circle Transform
Sensors
computer vision
image segmentation
DeepLabV3+
Hough circle transform
deep learning
data augmentation
title Center Deviation Measurement of Color Contact Lenses Based on a Deep Learning Model and Hough Circle Transform
title_full Center Deviation Measurement of Color Contact Lenses Based on a Deep Learning Model and Hough Circle Transform
title_fullStr Center Deviation Measurement of Color Contact Lenses Based on a Deep Learning Model and Hough Circle Transform
title_full_unstemmed Center Deviation Measurement of Color Contact Lenses Based on a Deep Learning Model and Hough Circle Transform
title_short Center Deviation Measurement of Color Contact Lenses Based on a Deep Learning Model and Hough Circle Transform
title_sort center deviation measurement of color contact lenses based on a deep learning model and hough circle transform
topic computer vision
image segmentation
DeepLabV3+
Hough circle transform
deep learning
data augmentation
url https://www.mdpi.com/1424-8220/23/14/6533
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