Could you please let me know the dimensions of your data? I mean what forms it a three dimension....

In MATLAB , you have wavedec3 for 3D data

https://www.mathworks.com/help/wavelet/ref/wavedec3.html

If you have image , in terms of .ply then you have

pcread() , pcshow() etc etc for 3D pre-processing

Could you please let me know the dimensions of your data? I mean what forms it a three dimension....

I think you could use the wavethresh R package. See the example below:

install.packages("wavethresh")

require(wavethresh)

#

# Generate some test data

#

test.data

It depends entirely on the nature of the data and what type of processing you want to do on the data.

In most cases, simple statistical methods are very practical.