CPC G01S 17/36 (2013.01) [G01S 7/4915 (2013.01); G01S 17/89 (2013.01); G06T 7/50 (2017.01); G06V 10/141 (2022.01); G06V 10/143 (2022.01); H04N 13/254 (2018.05); G06T 2207/10028 (2013.01)] | 18 Claims |
1. A method for a time-of-flight camera, comprising:
illuminating a scene with modulation light having two or more frequencies that do not have a common integer denominator;
at a sensor array, receiving the modulation light reflected off objects within the scene; and
determining unwrapped phases for each of the two or more frequencies of modulation light by at least:
processing the received modulation light to determine wrapped phase vectors for each frequency of modulation light;
converting the wrapped phase vectors to phase scalars in a complex domain; and
determining unwrapped phases in the complex domain based on the phase scalars.
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