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http://cvit.iiit.ac.in/scene-understanding-challenge-2018/
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Bounding boxes empty in the new dataset #5

Closed anirudh-chakravarthy closed 4 years ago

anirudh-chakravarthy commented 4 years ago

Hi,

I was trying to generate instance labels for the new release (part 2) of the IDD. However, I observed that polygons in the json file for certain classes do not have any coordinates (i.e. the labelled bounding boxes are empty) which keeps giving an error. I didn't face such error in the first part of the dataset.

Please suggest some workaround for this issue.

Thanks.

jaswanth-adas commented 4 years ago

Hi Anirudh, Got similar error. Found one while using part 2 data set. Issue is with following file as annotations are missing for category pole.

idd2_1\gtFine\train\283\frame2890_gtFine_polygons.json

{ "date": "08-Feb-2019 12:43:50", "deleted": 0, "draw": true, "id": 4, "label": "pole", "polygon": [], can see this.......................... "user": "cvit", "verified": 0 },

In part-1 dataset I didnot get any issue while converting to masks.

Coming to part-3 released recently, it also have similar issue while generating masks (gtFine_labelTrainIds)

error got at file: IDD_Part3\gtFine\train\452\0003438_gtFine_polygons.json category vegetation have no polygon points in json annotation file as shown below... { "date": "12-Jul-2019 21:16:50", "deleted": 0, "draw": true, "id": 6, "label": "vegetation", "polygon": [], "user": "cvit", "verified": 0 },

Please suggest me how to work further with data set part-2 and 3. Thank you.

anirudh-chakravarthy commented 4 years ago

I think the new commit has solved this.