How do I enable 3D deep learning support for convolution layer?

I am trying to implement a point cloud classification network (3DmFV-Net) using MATLAB's new 3D layers support and was unable to find a 3D concatenation layer.

For 2D there is depthConcatenationLayer(), is there a 3D equivalent?

 

Answer 1

[MathWorks Support Team]

You can use the 'concatenationLayer' by passing the depth dimension as 'Dim' to concatenate along depth. The 'Dim' is 4 for 3D data and 3 for 2D data. For more information, you can access the specific documentation by executing the following command in the MATLAB R2019b command window:

>> web(fullfile(docroot, 'deeplearning/ref/nnet.cnn.layer.concatenationlayer.html'))

Please follow the link below to search for the required information regarding the current release:

https://www.mathworks.com/help/