{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,14]],"date-time":"2025-10-14T00:44:14Z","timestamp":1760402654150,"version":"build-2065373602"},"reference-count":12,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2020,4,23]],"date-time":"2020-04-23T00:00:00Z","timestamp":1587600000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundations of China","award":["11472312"],"award-info":[{"award-number":["11472312"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>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.<\/jats:p>","DOI":"10.3390\/s20082409","type":"journal-article","created":{"date-parts":[[2020,4,23]],"date-time":"2020-04-23T10:46:22Z","timestamp":1587638782000},"page":"2409","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Measurement for the Thickness of Water Droplets\/Film on a Curved Surface with Digital Image Projection (DIP) Technique"],"prefix":"10.3390","volume":"20","author":[{"given":"Lingwei","family":"Zeng","sequence":"first","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha, Hunan 410075, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8819-318X","authenticated-orcid":false,"given":"Hanfeng","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha, Hunan 410075, China"},{"name":"National Engineering Laboratory for High-speed Railway Construction, Central South University, Changsha, Hunan 410075, China"}]},{"given":"Ying","family":"Li","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha, Hunan 410075, China"},{"name":"Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, HongKong Special Administrative Region 999077, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2746-182X","authenticated-orcid":false,"given":"Xuhui","family":"He","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Central South University, Changsha, Hunan 410075, China"},{"name":"National Engineering Laboratory for High-speed Railway Construction, Central South University, Changsha, Hunan 410075, China"}]}],"member":"1968","published-online":{"date-parts":[[2020,4,23]]},"reference":[{"key":"ref_1","unstructured":"Mason, B.J. 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