This is my first post in this forum! So Point me if anything is not clear!
I want to know how TOF camera works? So I've done Google & read some nice explanation about How Phase difference between Transmitted & Received signals can be used to calculate the Depth of an Object from Camera with good example.
What i did understand:
- How a light source(IR) can be modulated & demodulated ? Answer
- How to filter the reflected IR signal having the same modulation frequency? Answer
- Depth Can be measured by Calculating the Phase change of the Transmitted signal.
What i cannot understand:
- How phase change of a continuous square wave signal can be used to Measure the depth?
Update: Here is a Nice Explanation about this.
Note: I'm talking about TI & Mesa Kind of TOF Camera's using IR Led