4.6 Article

3D Metrology Using One Camera with Rotating Anamorphic Lenses

期刊

SENSORS
卷 22, 期 21, 页码 -

出版社

MDPI
DOI: 10.3390/s22218407

关键词

3D reconstruction; anamorphic lens; anamorphic stereo vision

资金

  1. National Natural Science Foundation of China [52175478]
  2. Defense Industrial Technology Development Program [JCKY2020203B039]
  3. Science and Technology Commission of Shanghai Municipality [21511102602]
  4. Doctoral Foundation of the University of Jinan [XBS1641]
  5. Joint Special Project of Shandong Province [ZR2016EL14]

向作者/读者索取更多资源

This paper presents a novel 3D metrology method using a camera with rotating anamorphic lenses. The method reconstructs the 3D data of the measured object from two anamorphic images captured before and after the rotation of the lens. The main advantage of this method is the simplicity of point matching, making it suitable for compact sensors for fast 3D measurements.
In this paper, a novel 3D metrology method using one camera with rotating anamorphic lenses is presented based on the characteristics of double optical centers for anamorphic imaging. When the anamorphic lens rotates -90 degrees around its optical axis, the 3D data of the measured object can be reconstructed from the two anamorphic images captured before and after the anamorphic rotation. The anamorphic lens imaging model and a polynomial anamorphic distortion model are firstly proposed. Then, a 3D reconstruction model using one camera with rotating anamorphic lenses is presented. Experiments were carried out to validate the proposed method and evaluate its measurement accuracy. Compared with stereo vision, the main advantage of the proposed 3D metrology approach is the simplicity of point matching, which makes it suitable for developing compact sensors for fast 3D measurements, such as car navigation applications.

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