Cannot find nuScenes blobs for converting to KITTI format in data_setup_README

[JacobKan]

First many thanks for your work. I am new on object detection and have spent many time on this data_setup part. Yet I cannot setup the data like your structure. A light suggestion: Download the nuScenes and Waymo datasets. As my understanding, these 2 datasets can be downloaded to somewhere outside the project because we will use soft link to connect them with the DEVIANT project.

My confusion lays in this step: Then follow the instructions at convert_nuscenes_to_kitti_format_and_evaluate.sh to get nusc_kitti_org folder.

I think I should download the datasets following yours and nuScene's github. But I found it hard to follow convert_nuscenes_to_kitti_format_and_evaluate.sh as I don't have v1.0-trainval#number_blobs_camera.tgz and v1.0-trainval01_blobs_lidar.tgz and many other directories in this .sh file.

So I am not able to generate nusc_kitti_org folder and continue.

[abhi1kumar]

Hi @JacobKan

I don't have v1.0-trainval#number_blobs_camera.tgz and v1.0-trainval01_blobs_lidar.tgz and many other directories in this .sh file.

These files are available from the nuscenes website. Here are the steps:

• Go to nuscenes website first. Click on Downloads.

• Click on Login and enter your nuscenes account details (You may need to signup if you have not done before). After login with my nuscenes account details, I see the following screen on my end

• Scroll down to the Full dataset (v1.0) section. You should see 10 camera and 10 lidar blobs for the Trainval set and 1 camera and 1 lidar blob for the Test set.

• Finally click on the cyan US/Asia link to download these blobs. These blobs are v1.0-trainval##_blobs_camera.tgz and v1.0-trainval##_blobs_lidar.tgz

• Once you have downloaded them, follow the instructions at convert_nuscenes_to_kitti_format_and_evaluate.sh and use our patched nuscenes devkit.

Let me know if you face any issues.

[JacobKan]

Thanks for your help! With your help and deeper study I can continue now. The .sh script file is the key.

[chun-hsueh-lee]

Hi, For the paths in convert_nuscenes_to_kitti_format_and_evaluate.sh, do I need to change the /home/abhinavkumar to my own $HOME path?

Can you please provide a new file with no absolute paths? This will be a lot easier!

Thank you so much!

[abhi1kumar]

Hi, For the paths in convert_nuscenes_to_kitti_format_and_evaluate.sh, do I need to change the /home/abhinavkumar to my own $HOME path?

Yes, you have to replace /home/abhinavkumar to your own $HOME.

Can you please provide a new file with no absolute paths? This will be a lot easier!

The reason I did not make these paths relative is some commands require absolute path and not relative path. You could simply search for /home/abhinavkumar in convert_nuscenes_to_kitti_format_and_evaluate.sh and replace them with /home/username.