diff --git a/mmdeploy/mmocr/apis/inference.py b/mmdeploy/mmocr/apis/inference.py
index 8c6d7c07a..5cbaeea7c 100644
--- a/mmdeploy/mmocr/apis/inference.py
+++ b/mmdeploy/mmocr/apis/inference.py
@@ -44,7 +44,11 @@ def aug_test(self, imgs, img_metas, **kwargs):
     def extract_feat(self, imgs):
         raise NotImplementedError('This method is not implemented.')
 
-    def simple_test(self, img: torch.Tensor, img_metas: Sequence[dict], *args,
+    def simple_test(self,
+                    img: torch.Tensor,
+                    img_metas: Sequence[dict],
+                    rescale: bool = False,
+                    *args,
                     **kwargs):
         """Run forward test.
 
@@ -59,13 +63,13 @@ def simple_test(self, img: torch.Tensor, img_metas: Sequence[dict], *args,
         if len(img_metas) > 1:
             boundaries = [
                 self.bbox_head.get_boundary(
-                    *(pred[i].unsqueeze(0)), [img_metas[i]], rescale=False)
+                    *(pred[i].unsqueeze(0)), [img_metas[i]], rescale=rescale)
                 for i in range(len(img_metas))
             ]
 
         else:
             boundaries = [
-                self.bbox_head.get_boundary(*pred, img_metas, rescale=False)
+                self.bbox_head.get_boundary(*pred, img_metas, rescale=rescale)
             ]
         return boundaries
 
@@ -103,12 +107,12 @@ def aug_test(self, imgs, img_metas, **kwargs):
     def extract_feat(self, imgs):
         raise NotImplementedError('This method is not implemented.')
 
-    def forward(self, img: torch.Tensor, img_metas: Sequence[dict], *args,
-                **kwargs):
+    def forward(self, img: Union[torch.Tensor, Sequence[torch.Tensor]],
+                img_metas: Sequence[dict], *args, **kwargs):
         """Run forward.
 
         Args:
-            imgs (torch.Tensor): Image input tensor.
+            imgs (torch.Tensor | Sequence[torch.Tensor]): Image input tensor.
             img_metas (Sequence[dict]): List of image information.
 
         Returns: