DCAM550 ToF Camera User Manual -20210906

5 Principle of Time of Flight

5.1 Vzense ToF Principle

Vzense DCAM710 product principle is based on range-gated imaging ToF solution,

and the sensor inside is based on Panasonic CCD sensor MN34906.

Fig. 9

5.2 Noise Factors

5.2.1 Ambient Light

Because the ToF distance measurement relies on the reflection of light sent out by the

camera, any additional light, e.g. artificial light sources or sunlight, may influence the

measurement results.

A strong ambient light may affect the accuracy and precision of the depth data, the

Zense DCAM 710 is suggested to in user below 50K LUX ambient light.

5.2 Multipath Propagation

Based on the principle of ToF, Multipath effect may happen when the light reflected

more one once. Any light that has been reflected several times, by other objects in the

camera’s field of view or the environment can cause deviation to the measurement

result.