RTDETRDetectionModel TorchScript, ONNX Predict and Val support (#8818)

Signed-off-by: Glenn Jocher <glenn.jocher@ultralytics.com>

.github/workflows/ci.yaml

@@ -118,7 +118,7 @@ jobs:
         run: |
           yolo checks
           pip list
-      - name: Benchmark World DetectionModel
+      - name: Benchmark YOLOWorld DetectionModel
         shell: bash
         run: coverage run -a --source=ultralytics -m ultralytics.cfg.__init__ benchmark model='path with spaces/yolov8s-worldv2.pt' imgsz=160 verbose=0.318
       - name: Benchmark SegmentationModel

tests/test_cli.py

@@ -65,8 +65,8 @@ def test_export(model, format):
 def test_rtdetr(task="detect", model="yolov8n-rtdetr.yaml", data="coco8.yaml"):
     """Test the RTDETR functionality with the Ultralytics framework."""
     # Warning: MUST use imgsz=640
-    run(f"yolo train {task} model={model} data={data} --imgsz= 640 epochs =1, cache = disk")  # add coma, spaces to args
+    run(f"yolo train {task} model={model} data={data} --imgsz= 160 epochs =1, cache = disk")  # add coma, spaces to args
-    run(f"yolo predict {task} model={model} source={ASSETS / 'bus.jpg'} imgsz=640 save save_crop save_txt")
+    run(f"yolo predict {task} model={model} source={ASSETS / 'bus.jpg'} imgsz=160 save save_crop save_txt")
 
 
 @pytest.mark.skipif(checks.IS_PYTHON_3_12, reason="MobileSAM Clip is not supported in Python 3.12")

ultralytics/models/rtdetr/model.py

@@ -36,8 +36,6 @@ class RTDETR(Model):
         Raises:
             NotImplementedError: If the model file extension is not 'pt', 'yaml', or 'yml'.
         """
-        if model and Path(model).suffix not in (".pt", ".yaml", ".yml"):
-            raise NotImplementedError("RT-DETR only supports creating from *.pt, *.yaml, or *.yml files.")
         super().__init__(model=model, task="detect")
 
     @property

ultralytics/models/rtdetr/predict.py

@@ -38,7 +38,7 @@ class RTDETRPredictor(BasePredictor):
         The method filters detections based on confidence and class if specified in `self.args`.
 
         Args:
-            preds (torch.Tensor): Raw predictions from the model.
+            preds (list): List of [predictions, extra] from the model.
             img (torch.Tensor): Processed input images.
             orig_imgs (list or torch.Tensor): Original, unprocessed images.
 
@@ -46,6 +46,9 @@ class RTDETRPredictor(BasePredictor):
             (list[Results]): A list of Results objects containing the post-processed bounding boxes, confidence scores,
                 and class labels.
         """
+        if not isinstance(preds, (list, tuple)):  # list for PyTorch inference but list[0] Tensor for export inference
+            preds = [preds, None]
+
         nd = preds[0].shape[-1]
         bboxes, scores = preds[0].split((4, nd - 4), dim=-1)
 

ultralytics/models/rtdetr/val.py

@@ -94,6 +94,9 @@ class RTDETRValidator(DetectionValidator):
 
     def postprocess(self, preds):
         """Apply Non-maximum suppression to prediction outputs."""
+        if not isinstance(preds, (list, tuple)):  # list for PyTorch inference but list[0] Tensor for export inference
+            preds = [preds, None]
+
         bs, _, nd = preds[0].shape
         bboxes, scores = preds[0].split((4, nd - 4), dim=-1)
         bboxes *= self.args.imgsz

ultralytics/utils/checks.py

@@ -493,7 +493,7 @@ def check_file(file, suffix="", download=True, hard=True):
             downloads.safe_download(url=url, file=file, unzip=False)
         return file
     else:  # search
-        files = glob.glob(str(ROOT / "cfg" / "**" / file), recursive=True)  # find file
+        files = glob.glob(str(ROOT / "**" / file), recursive=True) or glob.glob(str(ROOT.parent / file))  # find file
         if not files and hard:
             raise FileNotFoundError(f"'{file}' does not exist")
         elif len(files) > 1 and hard:

ultralytics/utils/files.py

@@ -145,3 +145,44 @@ def get_latest_run(search_dir="."):
     """Return path to most recent 'last.pt' in /runs (i.e. to --resume from)."""
     last_list = glob.glob(f"{search_dir}/**/last*.pt", recursive=True)
     return max(last_list, key=os.path.getctime) if last_list else ""
+
+
+def update_models(model_names=("yolov8n.pt",), source_dir=Path("."), update_names=False):
+    """
+    Updates and re-saves specified YOLO models in an 'updated_models' subdirectory.
+
+    Args:
+        model_names (tuple, optional): Model filenames to update, defaults to ("yolov8n.pt").
+        source_dir (Path, optional): Directory containing models and target subdirectory, defaults to current directory.
+        update_names (bool, optional): Update model names from a data YAML.
+
+    Example:
+        ```python
+        from ultralytics.utils.files import update_models
+
+        model_names = (f"rtdetr-{size}.pt" for size in "lx")
+        update_models(model_names)
+        ```
+    """
+    from ultralytics import YOLO
+    from ultralytics.nn.autobackend import default_class_names
+
+    target_dir = source_dir / "updated_models"
+    target_dir.mkdir(parents=True, exist_ok=True)  # Ensure target directory exists
+
+    for model_name in model_names:
+        model_path = source_dir / model_name
+        print(f"Loading model from {model_path}")
+
+        # Load model
+        model = YOLO(model_path)
+        model.half()
+        if update_names:  # update model names from a dataset YAML
+            model.model.names = default_class_names("coco8.yaml")
+
+        # Define new save path
+        save_path = target_dir / model_name
+
+        # Save model using model.save()
+        print(f"Re-saving {model_name} model to {save_path}")
+        model.save(save_path, use_dill=False)