yolo最新选择

target_roi_yolo.py

@@ -126,10 +126,19 @@ def _get_detector(model_path: str):
         return _detector_by_path[model_path]
     try:
         from maix import nn
-    except ImportError:
+    except Exception:
         return None
-    _detector_by_path[model_path] = nn.YOLOv5(model=model_path, dual_buff=False)
-    return _detector_by_path[model_path]
+    # YOLO is an optional capability. A broken/incompatible model must not
+    # abort boot (especially before the OTA rollback check).
+    try:
+        detector = nn.YOLOv5(model=model_path, dual_buff=False)
+    except Exception:
+        # Cache the failure to avoid retrying a broken native load every frame.
+        # reset_yolo_detector_cache() clears this after a model replacement.
+        _detector_by_path[model_path] = None
+        return None
+    _detector_by_path[model_path] = detector
+    return detector
 
 
 def preload_yolo_detector(logger=None):