(General) LiDAR Vegetation Class Question

Hi,

Can anyone answer a LiDAR point class classification question?

 

According to the ASPRS standard for point class classification, the following class relate to vegetation:

3 – Low Vegetation

 

4 – Medium Vegetation

 

5 – High Vegetation

Can anyone tell me whether there are actual ‘standardised’ (above ground) height ranges associated/relating to each of the vegetation class? If so what at the numeric values?

 

For example;

 

3 – Low Vegetation – 0.0m to 0.5m

 

4 – Medium Vegetation – 0.5m to 1.0m

 

5 – High Vegetation – 1.0m to >>m

If there are NOT any standard numeric height ranges; can anyone explain what the Low, Medium and High descriptions actually mean in reality? I have looked at various ASPRS documents but can not find any form of detailed explanation.

Thanks

Rob