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Allow import of single boxes in MOT format #1764

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Jun 22, 2020
Merged

Allow import of single boxes in MOT format #1764

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e232ac2
Allow single boxes in MOT format
zhiltsov-max Jun 19, 2020
0a72a99
update changelog
zhiltsov-max Jun 19, 2020
9793849
Merge branch 'develop' into zm/allow-single-boxes-in-mot
nmanovic Jun 22, 2020
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
- Built-in search for labels when create an object or change a label (<https://github.com/opencv/cvat/pull/1683>)
- Better validation of labels and attributes in raw viewer (<https://github.com/opencv/cvat/pull/1727>)
- ClamAV antivirus integration (<https://github.com/opencv/cvat/pull/1712>)
- Supported import and export or single boxes in MOT format (https://github.com/opencv/cvat/pull/1764)
- [Datumaro] Added `stats` command, which shows some dataset statistics like image mean and std (https://github.com/opencv/cvat/pull/1734)
- Add option to upload annotations upon task creation on CLI
- Polygon and polylines interpolation (<https://github.com/opencv/cvat/pull/1571>)
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11 changes: 11 additions & 0 deletions cvat/apps/dataset_manager/formats/mot.py
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Expand Up @@ -45,6 +45,17 @@ def _import(src_file, task_data):

track_id = ann.attributes.get('track_id')
if track_id is None:
# Extension. Import regular boxes:
task_data.add_shape(task_data.LabeledShape(
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Why don't create a track with only one bounding box?

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Is it any better? This would not preserve the original annotations, as all tracks are exported as tracks, even single-framed. We can, possibly, convert regular boxes to such tracks.

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MOT is for tracks only. Right? How are you going to dump a track which has two shapes:

  • First with outside=False, frame=0
  • Second with outside=True, frame=1?

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MOT is mostly for tracks, look here: https://motchallenge.net/instructions/. Almost every version has <[track] id> field set (idx 2), but not MOT17det, which contains just boxes and -1 as id. So we can safely assume that bboxes are supported via this extension.

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OK

type='rectangle',
label=label_cat.items[ann.label].name,
points=ann.points,
occluded=ann.attributes.get('occluded') == True,
z_order=ann.z_order,
group=0,
frame=frame_number,
attributes=[],
))
continue

shape = task_data.TrackedShape(
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1 change: 1 addition & 0 deletions cvat/apps/engine/tests/_test_rest_api.py
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Expand Up @@ -3119,6 +3119,7 @@ def _get_initial_annotation(annotation_format):
annotations["tracks"] = rectangle_tracks_wo_attrs

elif annotation_format == "MOT 1.1":
annotations["shapes"] = rectangle_shapes_wo_attrs
annotations["tracks"] = rectangle_tracks_wo_attrs

elif annotation_format == "LabelMe 3.0":
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