semantic labels about tartanair_tools

[ganlumomo]

Hi! @Amigoshan, I have read both links but still not clear about the semantic segmentation labels. Because according to https://github.com/microsoft/AirSim/blob/master/docs/image_apis.md#segmentation, the labels provided depend on experimental setting (basically code) when you collect them. Could you give more information regarding this?

Specifically, I have the following questions:

1. I understand that the labels are from 0-255 from an object mesh, but how do I suppose to know the exact mesh name now?
2. Is an object for example "ground" has the same label in all the sequences? Because otherwise, the semantic segmentation labels are not very useful.

Thank you so much for your help!

[kwea123]

#22 same issue
so there is no id -> name mapping available. The id is the same within a scene, but not necessarily the same for another, e.g. the ground for scene A can be 22 but 99 for scene B

[Amigoshan]

Hi, here is the information about the semantic labels: https://github.com/castacks/tartanair_tools/blob/master/data_type.md#segmentation-image
Basically, we are adopting what AirSim has: https://github.com/microsoft/AirSim/blob/master/docs/image_apis.md#segmentation

[Qjizhi]

Hi! @Amigoshan, I have read both links but still not clear about the semantic segmentation labels. Because according to https://github.com/microsoft/AirSim/blob/master/docs/image_apis.md#segmentation, the labels provided depend on experimental setting (basically code) when you collect them. Could you give more information regarding this?

Specifically, I have the following questions:

1. I understand that the labels are from 0-255 from an object mesh, but how do I suppose to know the exact mesh name now?

2. Is an object for example "ground" has the same label in all the sequences? Because otherwise, the semantic segmentation labels are not very useful.

Thank you so much for your help!

I have the same question.