Any reason why minimum height need to be lower than -90?

[visittor]

Depth2HHA-python/utils/rgbd_util.py

Line 49 in 6c7c14b

if (yMin > -90):

According to this line, if yMin is higher than -90, the value will be overwritten with the value -130.

Is there any reason about this?

I happened to have height channel cap at 255 for upper half of image when I used with my synthetic dataset.

[GentlesJan]

I get same question about this, i think "if (ymin < -90): ymin=-130" is more reasonable maybe, right?