mask out-of-range depth pixels (in a relaxed range) for the ref_depth

[czha5168]

Hi Rui,
Your paper looks interesting and thanks for providing the source code.

Just a quick question that whether Line129 (masked ref_depth) could be omitted due to the following Line139 (masked depth_list)? Are they doing different jobs for the depth image?

PointMVSNet/pointmvsnet/dataset.py

Line 129 in b6f131e

ref_depth = mask_depth_image(ref_depth, depth_start, depth_end)

PointMVSNet/pointmvsnet/dataset.py

Line 139 in b6f131e

depth_list = depth_list * (depth_list > depth_start).float() * (depth_list < depth_end).float()

Thanks for your time and looking forward to your reply!