Instance Labels

[HFTshoon]

Hello,

Thank you for your work. There is an explanation for semantic labels, but there's no description for instance labels. Could you provide a description for instance labels? To be more specific, I would like an explanation about the values in the instance_segmentation_2d and instance_masks_2d data. (For example, I can find 1071, 1072, 1073 from SF_6thAndMission_medium6 instance masks)

Thank you!