chore: 加载时将图像缩放到224*224， resnet禁用crop

roboimi/vla/data/simpe_robot_dataset.py

@@ -86,6 +86,9 @@ class SimpleRobotDataset(Dataset):
                 h5_path = f'observations/images/{cam_name}'
                 if h5_path in f:
                     img = f[h5_path][meta["frame_idx"]]
+                    # Resize图像到224x224（减少内存和I/O负担）
+                    import cv2
+                    img = cv2.resize(img, (224, 224), interpolation=cv2.INTER_LINEAR)
                     # 转换为float并归一化到 [0, 1]
                     img = torch.from_numpy(img).float() / 255.0
                     frame[f"observation.{cam_name}"] = img.permute(2, 0, 1)  # HWC -> CHW