Measurement for the Thickness of Water Droplets/Film on a Curved Surface with Digital Image Projection (DIP) Technique

Measurement for the Thickness of Water Droplets/Film on a Curved Surface with Digital Image Projection (DIP) Technique

Digital image projection (DIP) with traditional vertical calibration cannot be used for measuring the water droplets/film on a curved surface, because significant systematic error will be introduced. An improved DIP technique with normal calibration is proposed in the present paper, including the pr...

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Bibliographic Details
Main Authors: Lingwei Zeng, Hanfeng Wang, Ying Li, Xuhui He
Format: Article
Language:English
Published: MDPI AG 2020-04-01
Series:Sensors
Subjects:
water droplets/film
curved surface
digital image projection DIP
image processing technique
Online Access:https://www.mdpi.com/1424-8220/20/8/2409
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spelling doaj-6e10f124dfda4afb83b57d8c3c6dcac02020-11-25T03:13:19ZengMDPI AGSensors1424-82202020-04-01202409240910.3390/s20082409Measurement for the Thickness of Water Droplets/Film on a Curved Surface with Digital Image Projection (DIP) TechniqueLingwei Zeng0Hanfeng Wang1Ying Li2Xuhui He3School of Civil Engineering, Central South University, Changsha, Hunan 410075, ChinaSchool of Civil Engineering, Central South University, Changsha, Hunan 410075, ChinaSchool of Civil Engineering, Central South University, Changsha, Hunan 410075, ChinaSchool of Civil Engineering, Central South University, Changsha, Hunan 410075, ChinaDigital image projection (DIP) with traditional vertical calibration cannot be used for measuring the water droplets/film on a curved surface, because significant systematic error will be introduced. An improved DIP technique with normal calibration is proposed in the present paper, including the principles, operation procedures and analysis of systematic errors, which was successfully applied to measuring the water droplets/film on a curved surface. By comparing the results of laser profiler, traditional DIP, improved DIP and theoretical analysis, advantages of the present improved DIP technique are highlighted.https://www.mdpi.com/1424-8220/20/8/2409water droplets/filmcurved surfacedigital image projection DIPimage processing technique
collection DOAJ
language English
format Article
sources DOAJ
author Lingwei Zeng
Hanfeng Wang
Ying Li
Xuhui He
spellingShingle Lingwei Zeng
Hanfeng Wang
Ying Li
Xuhui He
Measurement for the Thickness of Water Droplets/Film on a Curved Surface with Digital Image Projection (DIP) Technique
Sensors
water droplets/film
curved surface
digital image projection DIP
image processing technique
author_facet Lingwei Zeng
Hanfeng Wang
Ying Li
Xuhui He
author_sort Lingwei Zeng
title Measurement for the Thickness of Water Droplets/Film on a Curved Surface with Digital Image Projection (DIP) Technique
title_short Measurement for the Thickness of Water Droplets/Film on a Curved Surface with Digital Image Projection (DIP) Technique
title_full Measurement for the Thickness of Water Droplets/Film on a Curved Surface with Digital Image Projection (DIP) Technique
title_fullStr Measurement for the Thickness of Water Droplets/Film on a Curved Surface with Digital Image Projection (DIP) Technique
title_full_unstemmed Measurement for the Thickness of Water Droplets/Film on a Curved Surface with Digital Image Projection (DIP) Technique
title_sort measurement for the thickness of water droplets/film on a curved surface with digital image projection (dip) technique
publisher MDPI AG
series Sensors
issn 1424-8220
publishDate 2020-04-01
description Digital image projection (DIP) with traditional vertical calibration cannot be used for measuring the water droplets/film on a curved surface, because significant systematic error will be introduced. An improved DIP technique with normal calibration is proposed in the present paper, including the principles, operation procedures and analysis of systematic errors, which was successfully applied to measuring the water droplets/film on a curved surface. By comparing the results of laser profiler, traditional DIP, improved DIP and theoretical analysis, advantages of the present improved DIP technique are highlighted.
topic water droplets/film
curved surface
digital image projection DIP
image processing technique
url https://www.mdpi.com/1424-8220/20/8/2409
work_keys_str_mv AT lingweizeng measurementforthethicknessofwaterdropletsfilmonacurvedsurfacewithdigitalimageprojectiondiptechnique
AT hanfengwang measurementforthethicknessofwaterdropletsfilmonacurvedsurfacewithdigitalimageprojectiondiptechnique
AT yingli measurementforthethicknessofwaterdropletsfilmonacurvedsurfacewithdigitalimageprojectiondiptechnique
AT xuhuihe measurementforthethicknessofwaterdropletsfilmonacurvedsurfacewithdigitalimageprojectiondiptechnique
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