Real world distance and size calculation

[ZJUHJ]

How can I calculate the size of the objects and the distance between them in the real world based on the "world coordinates" in the 3DOD annotations?

[jlazarow]

The objects are labeled in meters. Defining the distance between two 3D boxes could mean: the distance between the centers, the distance between the closest corners, etc. Whatever you decide, calculating the distance in this manner would give you the distance in real world units. The size would be similar: e.g., if volume, multiply all dimensions together. Realistically, the most accurate metric would involve points derived from each object's instance segmentation, which we do not provide in this dataset.