Update mini_car_bikes_detection.py

mini_car_bikes_detection.py

@@ -42,7 +42,7 @@ class MiniCarBikesDetection(datasets.GeneratorBasedBuilder):
                     {
                         # "id": datasets.Sequence(datasets.Value("int32")),
                         "category": datasets.Sequence(datasets.ClassLabel(names=_CATEGORIES)),
-                        "bbox": datasets.Sequence(datasets.Sequence(datasets.Value("float32"), length=4)),                        
+                        "bbox": datasets.Sequence(datasets.Value("float32"), length=4),                        
                     }
                 ),                  
             }
@@ -99,7 +99,7 @@ class MiniCarBikesDetection(datasets.GeneratorBasedBuilder):
             for annotation in annotations:
                 if image_name == annotation["image"]:
                     objects["category"].append(annotation["name"])
-                    objects["bbox"].append(annotation["bbox"])
+                    objects["bbox"].append(float(n) for n in annotation["bbox"])
                     yield  image_file, {
                         "image": {"path": image_file[0], "bytes": image_file[1].read()},
                         "image_name": image_name,