Allow import of single boxes in MOT format (#1764)

* Allow single boxes in MOT format

* update changelog

Co-authored-by: Nikita Manovich <40690625+nmanovic@users.noreply.github.com>

CHANGELOG.md

@@ -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>)

cvat/apps/dataset_manager/formats/mot.py

@@ -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(
+                        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(

cvat/apps/engine/tests/_test_rest_api.py

@@ -3119,6 +3119,7 @@ class TaskAnnotationAPITestCase(JobAnnotationAPITestCase):
                 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":