What is the "AS" variable in the bilateralfilter.cpp

Thanks for sharing this code. Great job.

Would you kindly tell me what the "AS" variable means in your bilateralfilter.cpp

rloss/pytorch/pytorch-deeplab_v3_plus/DenseCRFLoss.py

Line 32 in d9b16fb

AS = np.zeros(segmentations.shape, dtype=np.float32)

AS means the affinity matrix A (HW x HW) times the segmentation S (HW x C) with C classes.
So AS is of dimension HW x C. It is essentially bilateral filtering if A is a matrix with Gaussian kernel.
This computation is accelerated by fast bilateral filtering for dense Gaussian.

Thanks! I get what you mean. And in the code, I think the AS is the vectorized one.