Regarding 3D-UNET for segmentation.

1. In the example provided in help,

inputPatchSize = [132 132 132 4];

What does '4' correspond to?

Answer 1

[Sourav Bairagya]

Dataset for training 3D U-Net contains 4-D voulmes of which each one represents a stack of 3D images. The first three dimensions correspond to height, width, and depth of a 3-D volumetric image abd the fourth dimension corresponds to different scan modalities.