testGAN function: g_objects >.5

[wasd12345]

When using 3dgan_mit_biasfree in test mode in order to make new objects, testGAN function for generating new objects, there is a line that thresholds the values at .5 to create voxels.

At first I thought maybe it does that because the values represent probabilities on [0,1] of being occupied so you just do a hard threshold.

But actually when plotting the distribution of the values, about half of them are below 0. They almost look like a laplace distribution or something. So what is supposed to be represented here by g_objects (32x64x64x64x1) is (batchsize x N x N x N x 1), and is thresholding > .5 what we want vs > 0?