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Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Zhanping Xu0
Date of Patent
February 23, 2021
0Patent Application Number
154808230
Date Filed
April 6, 2017
0Patent Citations
Patent Citations Received
Patent Primary Examiner
Patent abstract
A continuous wave time of flight (CW-TOF) camera that modulates sensitivity of its photosensor during an exposure period at a frequency of modulation of structured light that the camera transmits to illuminate a scene that it images but phase shifted relative to phase of the transmitted light by a sampling phase offset modified by a sequence of N perturbation phase shifts λn=2π(n−1)/N, (1≤n≤N), and modifies the structured light in synchrony with the sequence of perturbation phase shifts to reduce error due to multipath interference in determining distances to features in the scene.
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