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1) Example of Multipath Interference

Influence level of the multi-path reflection depends on not only the reflectance of the multi-path objects and

measured object but also the surface condition of the measured object.

FOV

Corner

Floor Wall

Multi reflections path

FOV

Direct path

Multi reflections path

Direct path

FOV

Multi reflections path

Direct path

Measurement result (Overestimation)

2) Dependency on surface condition of the measured object

Direct path

component

Multi-path

component

Direct path

component

Multi-path

component

Surface condition A

Surface condition B

Specular reflection < Diffuse reflection

Ratio of multi

reflection path

component is

bigger

Component

to camera

direction

Specular reflection > Diffuse reflection

Ratio of multi

reflection path

component is

smaller

Component

to camera

direction

Overestimation is bigger

Overestimation is smaller

Multipath Interference

Since multipath countermeasures differ depending on the usage environment and use case, please contact the TOF

sensor vendor if you have any problems.

Brand	Nuvoton
Model	TOF KHKT001
Category	Control Unit
Language	English

Nuvoton TOF KHKT001 User Manual

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Nuvoton TOF KHKT001 Specifications