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Adaptive Multi-Frequency Phase Stepping for Optimal 3D Depth Reconstruction

Adaptive Multi-Frequency Phase Stepping for Optimal 3D Depth Reconstruction

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Sammendrag
This paper describes a 3D measurement algorithm based on Multi-Frequency Phase Stepping, using a single period pattern and a higher frequency pattern. An experimentally verified analytical expression for depth precision enables adaptive selection of the high frequency. The algorithm has several advantages compared with Gray Code Phase Stepping (GCPS): In high signal situations, depth precision improves. In low signal situations, Gray Coding errors are avoided. Additionally, robust estimates of measurement precision will be available on a per pixel basis.
Språk
Engelsk
Institusjon(er)
  • SINTEF Digital / Smart Sensor Systems
Presentert på
Imaging and Applied Optics 2018 (
Sted
Orlando
Dato
24.06.2018 - 27.06.2018
Arrangør
Optical Society of America
År
2018