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Fast Multifrequency Phase Unwrapping Method Based on 3D Printing Object Appearance Acquisition.

Xiaomei Zheng1, Yongqing Wang1, Guohong Du1

  • 1School of Electrical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, China.

3D Printing and Additive Manufacturing
|January 1, 2025
PubMed
Summary

A new fast multifrequency phase unwrapping method enhances 3D printing measurements. This technique accurately reconstructs surface details, improving efficiency by 25% for high-precision applications.

Keywords:
3D scanningfringe projection profilometrymultifrequency methodphase unwrappingthree-dimensional reconstruction

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Area of Science:

  • Metrology
  • 3D Printing Technology
  • Optical Measurement

Background:

  • 3D printing is crucial in aerospace, exoskeleton, and architecture.
  • Increasing accuracy demands in these fields necessitate high-precision measurement techniques.
  • Existing methods may lack efficiency or robustness for complex 3D printed objects.

Purpose of the Study:

  • To propose a fast multifrequency phase unwrapping method for 3D printed objects.
  • To achieve high-precision surface shape and texture reconstruction.
  • To enhance measurement efficiency and robustness independent of ambient light.

Main Methods:

  • Standard image acquisition of 3D printed objects.
  • Application of a fast multifrequency phase unwrapping algorithm.
  • Independent pixel calculation for robust surface reconstruction.

Main Results:

  • Reduced projection patterns from 12 to 9 compared to conventional methods.
  • Achieved a 25% improvement in overall measurement efficiency.
  • Demonstrated accurate surface reconstruction for complex shapes and plaster models.

Conclusions:

  • The proposed method offers high efficiency and precision for 3D printed object measurements.
  • It provides accurate data for demanding applications in aerospace, exoskeleton, and architecture.
  • The technique is robust and adaptable to various materials and sampling locations.