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arXiv · 1503.01804

Frequency Domain TOF: Encoding Object Depth in Modulation Frequency

Achuta Kadambi·Vage Taamazyan·Suren Jayasuriya·Ramesh Raskar
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Abstract

Time of flight cameras may emerge as the 3-D sensor of choice. Today, time of flight sensors use phase-based sampling, where the phase delay between emitted and received, high-frequency signals encodes distance. In this paper, we present a new time of flight architecture that relies only on frequency---we refer to this technique as frequency-domain time of flight (FD-TOF). Inspired by optical coherence tomography (OCT), FD-TOF excels when frequency bandwidth is high. With the increasing frequency of TOF sensors, new challenges to time of flight sensing continue to emerge. At high frequencies, FD-TOF offers several potential benefits over phase-based time of flight methods.

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Achuta Kadambi, Vage Taamazyan, Suren Jayasuriya, Ramesh Raskar. 2015-03-05. Frequency Domain TOF: Encoding Object Depth in Modulation Frequency. https://arxiv.org/abs/1503.01804

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