Scales for mapping the depth image values to the z dimension in COLMAP.
This is needed when using the depth2world.m script.
Each scene has a single scale:

1 -6.2385
2 -2.6919
3 -6.9887
4 -6.1620
5 -6.1817
6 -7.7468
7 -5.8562
8 -6.1502
9 -5.9528