ToF: Direct ToF vs Indirect ToF

3D sensing

iToF vs. dToF

1. dToF

2. iToF

iToF Modulation

3. iToF vs. dToF performance

4. Applications

Related reading

1. Apple Lidar https://medium.com/p/d49a25c21321/edit

Reference

1. https://zhuanlan.zhihu.com/p/135836088
2. http://www.f4news.com/2018/07/07/ams-presentation-on-3d-sensing-for-consumer-applications/