• Laser & Optoelectronics Progress
  • Vol. 62, Issue 2, 0211004 (2025)
Liang Zhu1、2、*, Ran He1、2, Min Yan2, Zhenzhong Xiao2, and Yuming Dong1
Author Affiliations
  • 1Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518052, Guangdong , China
  • 2Orbbec Technology Group Co., Ltd., Shenzhen 518055, Guangdong , China
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    DOI: 10.3788/LOP241078 Cite this Article Set citation alerts
    Liang Zhu, Ran He, Min Yan, Zhenzhong Xiao, Yuming Dong. Three-Tap Time of Flight Demodulation Design with Low Power and Anti-Interference[J]. Laser & Optoelectronics Progress, 2025, 62(2): 0211004 Copy Citation Text show less

    Abstract

    This article proposes a novel three-tap time of flight (ToF) modulation and demodulation scheme, which can effectively reduce the power consumption of multiple-phase data acquisition, transmission, and calculation for depth computing without losing ranging accuracy. Our three-tap rotation strategy also resolves the inconsistent gain and large residual distance calibration accuracy caused by CMOS technology. We also propose an inter-cluster pseudo-random coding design that effectively reduces the mutual interference among multiple ToF cameras working in the same scene. The proposed combination strategy can potentially advance the low-power miniaturization of ToF three-dimensional perception imaging technology.
    Liang Zhu, Ran He, Min Yan, Zhenzhong Xiao, Yuming Dong. Three-Tap Time of Flight Demodulation Design with Low Power and Anti-Interference[J]. Laser & Optoelectronics Progress, 2025, 62(2): 0211004
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