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ToF：飞行时间（Time of Flight），是一种通过计算光线的传播时间来测量距离的技术。

Time-of-Flight Camera – An Introduction

3D Time-of-Flight (TOF) technology is revolutionizing the machine vision industry by providing 3D imaging using a low-cost CMOS pixel array together with an active modulated light source. Compact construction, easy-of-use, together with high accuracy and frame-rate makes TOF cameras an attractive solution for a wide range of applications. In this article, we will cover the basics of TOF operation, and compare TOF with other 2D/3D vision technologies. Then various applications that benefit from TOF sensing, such as gesturing and 3D scanning and printing, are explored. Finally, resources that help readers get started with Texas Instruments’ 3D TOF solution are provided.

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