Fourier-Transform-Based Surface Measurement and Reconstruction of Human Face Using the Projection of Monochromatic Structured Light

This work presents a new approach of surface measurement of human face via the combination of the projection of monochromatic structured light, the optical filtering technique, the polarization technique and the Fourier-transform-based image-processing algorithm. The theoretical analyses and experim...

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Main Authors: Bingquan Chen, Hongsheng Li, Jun Yue, Peng Shi
Format: Article
Language:English
Published: MDPI AG 2021-04-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/7/2529
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author Bingquan Chen
Hongsheng Li
Jun Yue
Peng Shi
author_facet Bingquan Chen
Hongsheng Li
Jun Yue
Peng Shi
author_sort Bingquan Chen
collection DOAJ
description This work presents a new approach of surface measurement of human face via the combination of the projection of monochromatic structured light, the optical filtering technique, the polarization technique and the Fourier-transform-based image-processing algorithm. The theoretical analyses and experimental results carried out in this study showed that the monochromatic feature of projected fringe pattern generated using our designed laser-beam-based optical system ensures the use of optical filtering technique for removing the effect of background illumination; the linearly-polarized characteristic makes it possible to employ a polarizer for eliminating the noised signal contributed by multiply-scattered photons; and the high-contrast sinusoidal fringes of the projected structured light provide the condition for accurate reconstruction using one-shot measurement based on Fourier transform profilometry. The proposed method with the portable and stable optical setup may have potential applications of indoor medical scan of human face and outdoor facial recognition without strict requirements of a dark environment and a stable object being observed.
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spelling doaj.art-2998ca6c6fd3486289c0b4ee0a996a5b2023-11-21T14:12:48ZengMDPI AGSensors1424-82202021-04-01217252910.3390/s21072529Fourier-Transform-Based Surface Measurement and Reconstruction of Human Face Using the Projection of Monochromatic Structured LightBingquan Chen0Hongsheng Li1Jun Yue2Peng Shi3School of Science, Qingdao University of Technology, Qingdao 266525, ChinaSchool of Science, Qingdao University of Technology, Qingdao 266525, ChinaSchool of Science, Qingdao University of Technology, Qingdao 266525, ChinaSchool of Science, Qingdao University of Technology, Qingdao 266525, ChinaThis work presents a new approach of surface measurement of human face via the combination of the projection of monochromatic structured light, the optical filtering technique, the polarization technique and the Fourier-transform-based image-processing algorithm. The theoretical analyses and experimental results carried out in this study showed that the monochromatic feature of projected fringe pattern generated using our designed laser-beam-based optical system ensures the use of optical filtering technique for removing the effect of background illumination; the linearly-polarized characteristic makes it possible to employ a polarizer for eliminating the noised signal contributed by multiply-scattered photons; and the high-contrast sinusoidal fringes of the projected structured light provide the condition for accurate reconstruction using one-shot measurement based on Fourier transform profilometry. The proposed method with the portable and stable optical setup may have potential applications of indoor medical scan of human face and outdoor facial recognition without strict requirements of a dark environment and a stable object being observed.https://www.mdpi.com/1424-8220/21/7/2529pattern recognition3D imaging and sensingstructured lightpolarizationhuman facereconstruction
spellingShingle Bingquan Chen
Hongsheng Li
Jun Yue
Peng Shi
Fourier-Transform-Based Surface Measurement and Reconstruction of Human Face Using the Projection of Monochromatic Structured Light
Sensors
pattern recognition
3D imaging and sensing
structured light
polarization
human face
reconstruction
title Fourier-Transform-Based Surface Measurement and Reconstruction of Human Face Using the Projection of Monochromatic Structured Light
title_full Fourier-Transform-Based Surface Measurement and Reconstruction of Human Face Using the Projection of Monochromatic Structured Light
title_fullStr Fourier-Transform-Based Surface Measurement and Reconstruction of Human Face Using the Projection of Monochromatic Structured Light
title_full_unstemmed Fourier-Transform-Based Surface Measurement and Reconstruction of Human Face Using the Projection of Monochromatic Structured Light
title_short Fourier-Transform-Based Surface Measurement and Reconstruction of Human Face Using the Projection of Monochromatic Structured Light
title_sort fourier transform based surface measurement and reconstruction of human face using the projection of monochromatic structured light
topic pattern recognition
3D imaging and sensing
structured light
polarization
human face
reconstruction
url https://www.mdpi.com/1424-8220/21/7/2529
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