about z interval

[rlczddl]

In the flashocc-r50.py:grid_config = {
'x': [-40, 40, 0.4],
'y': [-40, 40, 0.4],
'z': [-1, 5.4, 6.4],
'depth': [1.0, 45.0, 0.5],
}, why the interval of z is 6.4？

[Yzichen]

For efficiency, we choose to directly generate BEV features. Therefore, no partitioning is performed along the height dimension.
So 5.4 + 1.0 = 6.4