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Updated: Aug 22, 2025

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3D Metrology Using One Camera with Rotating Anamorphic Lenses.

Xiaobo Chen1, Jinkai Zhang2, Juntong Xi1

  • 1School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.

Sensors (Basel, Switzerland)
|November 11, 2022
PubMed
Summary
This summary is machine-generated.

A new 3D metrology technique uses a single camera with rotating anamorphic lenses to reconstruct 3D data. This method simplifies point matching for efficient 3D measurements, ideal for applications like car navigation.

Keywords:
3D reconstructionanamorphic lensanamorphic stereo vision

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Area of Science:

  • Optics and Photonics
  • Computer Vision
  • Metrology

Background:

  • Traditional 3D metrology often requires multiple cameras or complex setups.
  • Anamorphic imaging offers unique properties for optical measurements.
  • Developing compact and efficient 3D sensing solutions is crucial for various applications.

Purpose of the Study:

  • To introduce a novel 3D metrology method utilizing a single camera with rotating anamorphic lenses.
  • To establish anamorphic lens imaging and distortion models for accurate 3D reconstruction.
  • To demonstrate the feasibility and evaluate the accuracy of the proposed method.

Main Methods:

  • A novel 3D metrology approach based on double optical centers of anamorphic imaging.
  • Rotation of an anamorphic lens by -90° around its optical axis.
  • Reconstruction of 3D data from two anamorphic images captured before and after lens rotation.
  • Proposal of an anamorphic lens imaging model and a polynomial anamorphic distortion model.

Main Results:

  • Successful reconstruction of 3D data using the proposed single-camera system.
  • Experimental validation of the 3D metrology method and assessment of its measurement accuracy.
  • Demonstration of simplified point matching compared to stereo vision.

Conclusions:

  • The proposed 3D metrology method offers a simpler alternative to stereo vision.
  • The technique is suitable for developing compact sensors for rapid 3D measurements.
  • Potential applications include automotive navigation systems and other real-time 3D sensing tasks.