Simultaneous phase and frequency stepping in Time-of-flight range imaging
Lickfold, C. A., Streeter, L., Cree, M. J., & Scott, J. B. (2019). Simultaneous phase and frequency stepping in Time-of-flight range imaging. In 2019 IEEE SENSORS. Washington, DC: IEEE. https://doi.org/10.1109/sensors43011.2019.8956800
Permanent Research Commons link: https://hdl.handle.net/10289/13395
Time-of-flight (ToF) range imaging is an established full-field depth acquisition technology. ToF is prone to several forms of error, notably multi-path interference (MPI). Frequency stepping ToF mitigates these errors, but efficient computational methods suffer from bandwidth limitations. We introduce a new acquisition method based on simultaneous phase and frequency stepping, which is capable of running in real time and reduces error compared to phase stepping and frequency stepping alone.
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