High-speed, Accurate 3D range finding system tolerant against ambient illumination

我们研究了具有环境光照鲁棒性的三维测距技术。我们将解调技术引入到光截面法中，通过优化设计，仿真验证了-40dB的背景光抑制性能。我们设计了时间编码的二维模式投影方法，并采用先进的65nm CMOS技术制作。我们演示了超过80dB的动态范围，背景抑制为-21dB。我们还演示了在SBR或-5.5dB下10个距离图/秒的3d测距性能。

We investigated 3-D range-finding techniques with ambient illumination robustness. We introduced demodulation technique into light-section method, and with design optimization, we demonstrated -40dB background-light suppression performance by simulation. We have designed time-encoded 2-D pattern projection method with ambient illumination rejection techniques, and fabricated using advanced 65nm CMOS technology. We demonstrated dynamic range over 80dB with background suppression of -21dB. We also demonstrated 10 rangemap/sec 3-D range-finding performance at SBR or -5.5dB.