Bounding boxes being created with zero width

Omniverse Isaac Sim
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1

• Hardware (T4/V100/Xavier/Nano/etc) Alienware: RTX 4090,
Processor 13th Gen Intel(R) Core™ i9-13900HX (2.20 GHz)
Installed RAM 32.0 GB (31.7 GB usable)
System type 64-bit operating system, x64-based processor

from COURSE: Synthetic Data Generation for Perception Model Training in Isaac Sim https://learn.nvidia.com/courses/course?course_id=course-v1:DLI+S-OV-30+V1&unit=block-v1:DLI+S-OV-30+V1+type@vertical+block@7fecaf9f66204c0ea35402fca5ae1b25

I generated synthetic images using the generate_data.sh script and ran the training model local_train.ipynb.

After the first run it generated the _warning.json file:

"{

  "/workspace/tao-experiments/cardbox_sdg/cardbox_data/distractors_warehouse/Camera/object_detection/1106.txt_2": [

    471,

    393,

    471,

    428

  ],

  "/workspace/tao-experiments/cardbox_sdg/cardbox_data/distractors_warehouse/Camera/object_detection/476.txt_0": [

    721,

    239,

    721,

    264

  ],

  "/workspace/tao-experiments/cardbox_sdg/cardbox_data/distractors_warehouse/Camera/object_detection/1576.txt_2": [

    473,

    237,

    473,

    274

  ]

}"

apparently it created bounding boxes with width = 0.

I’d like to understand why it is doing that and how to avoid it to happen.

I checked my resnet18_distractors.txt spec file and it has a min size for bound boxes already

augmentation_config {
  preprocessing {
    output_image_width: 960
    output_image_height: 544
    min_bbox_width: 20.0
    min_bbox_height: 20.0
    output_image_channel: 3
  }
3

Could you please confirm whether this issue occurs on a specific Isaac Sim version, or have you observed it across multiple releases?

4

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