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Author:

Liu, Jinghui (Liu, Jinghui.) | Wang, Yuezong (Wang, Yuezong.)

Indexed by:

EI Scopus SCIE PubMed

Abstract:

Aiming at the problem of 3D surface reconstruction of small height objects, a method based on the scanning principle with thin structured light is proposed. The laser fringe is produced by a laser light source. It scans the surface of small height object under the control of a precise motion control system, and is integrated with a stereo light microscope and two cameras to form a complete structured light profilometry system. This method is very suitable for 3D surface reconstruction of small height objects. In order to deal with the phenomenon of "cracking" and local uneven brightness in microscope fringe image, the fringe image sequence is captured under different camera exposure parameters, and the quality of fringe image is improved by image fusion. The location of pixels on the center line of laser stripes is detected by the Loess local second-order fitting method, and the positions of these pixels are smoothed and predicted by using the Lowess local linear fitting method. The deformation of the laser stripe center curve is calculated by constructing a baseline, and the 3D surface reconstruction of the object with small height is realized in the image space. Taking the small characters on the surface of Chinese coins and human hair as test samples, their 3D surfaces are constructed by using the method proposed in this paper. The reconstructed 3D surface shapes are highly consistent with the real 3D surface shapes of objects.

Keyword:

Small scale reconstruction Optical profilometry Fringe pattern analysis 3D shape reconstruction Microscopic vision

Author Community:

  • [ 1 ] [Liu, Jinghui]Inst Disaster Prevent, Sanhe 065201, Hebei, Peoples R China
  • [ 2 ] [Wang, Yuezong]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Wang, Yuezong]Beijing Univ Technol, Fac Mat & Mfg, Beijing 100124, Peoples R China

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Source :

MICRON

ISSN: 0968-4328

Year: 2021

Volume: 143

2 . 4 0 0

JCR@2022

ESI Discipline: BIOLOGY & BIOCHEMISTRY;

ESI HC Threshold:84

JCR Journal Grade:3

Cited Count:

WoS CC Cited Count: 1

SCOPUS Cited Count: 18

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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