Understanding the Observation Angle in KITTI Dataset

[anilcanbulut]

Hi. I've been working on this repository for a long time and I started to dig in about the calculations to understand. I have a question about one of the possible parameters that are used in geometric calculations. The KITTI dataset has the label 'observation angle (alpha)' in the label files and I couldn't understand how it is used in the model training. Can you provide me a small description of the steps that include the usage of the observation angle?