With the continuous expansion of the application of ToF technology, ToF sensors enter people’s field of vision mainly in the field of smartphones and tablets, and are mainly concentrated in the 3D ToF image sensor. Since ToF sensors are currently the main application in the imaging field, this article only discusses ToF sensor.
No matter which mobile phone manufacturer it is, the latest smartphone is equipped with at least two cameras.Many users think that multiple cameras are only used by manufacturers to improve camera performance, but this is not the case.
When the ToF sensor gradually becomes the standard configuration of smart phones, the purpose of multiple cameras gradually emerges, which can be used for multi-scene recognition applications, such as front and rear lenses for gesture recognition or face 3D recognition for secure payment. And AR/VR is also the application direction of ToF in 3D perception.
In terms of the market share of ToF sensors, following the smartphone and tablet markets are the fields of building inspection, smart home, automotive, and drones.
With such a wide range of application scenarios, it benefits from the advantages of ToF sensors compared to structured light and binocular RGB: the depth information of the object is calculated quickly in real time, and the depth calculation is not affected by the gray characteristics of the surface of the object. The accuracy will not change with the change of distance, basically can guarantee the accuracy of centimeter level, especially suitable for some large-scale distance changes and high-speed applications.
