diff --git a/tools/infer/predict_det.py b/tools/infer/predict_det.py
index 52c225d2b3913cf8c0dc88abcc07f7ccfd3cc914..08441d054d6bc5f2cabccb882f67047b7194899e 100755
--- a/tools/infer/predict_det.py
+++ b/tools/infer/predict_det.py
@@ -67,6 +67,7 @@ class TextDetector(object):
             postprocess_params["unclip_ratio"] = args.det_db_unclip_ratio
             postprocess_params["use_dilation"] = args.use_dilation
             postprocess_params["score_mode"] = args.det_db_score_mode
+            postprocess_params["use_polygon"] = args.det_use_polygon
         elif self.det_algorithm == "DB++":
             postprocess_params['name'] = 'DBPostProcess'
             postprocess_params["thresh"] = args.det_db_thresh
@@ -75,6 +76,7 @@ class TextDetector(object):
             postprocess_params["unclip_ratio"] = args.det_db_unclip_ratio
             postprocess_params["use_dilation"] = args.use_dilation
             postprocess_params["score_mode"] = args.det_db_score_mode
+            postprocess_params["use_polygon"] = args.det_use_polygon
             pre_process_list[1] = {
                 'NormalizeImage': {
                     'std': [1.0, 1.0, 1.0],
@@ -204,6 +206,8 @@ class TextDetector(object):
         img_height, img_width = image_shape[0:2]
         dt_boxes_new = []
         for box in dt_boxes:
+            if type(box) is list:
+                box = np.array(box)
             box = self.clip_det_res(box, img_height, img_width)
             dt_boxes_new.append(box)
         dt_boxes = np.array(dt_boxes_new)
@@ -262,13 +266,15 @@ class TextDetector(object):
         else:
             raise NotImplementedError
 
-        #self.predictor.try_shrink_memory()
         post_result = self.postprocess_op(preds, shape_list)
         dt_boxes = post_result[0]['points']
+        print("det_boxes", dt_boxes)
         if (self.det_algorithm == "SAST" and self.det_sast_polygon) or (
                 self.det_algorithm in ["PSE", "FCE", "CT"] and
                 self.postprocess_op.box_type == 'poly'):
             dt_boxes = self.filter_tag_det_res_only_clip(dt_boxes, ori_im.shape)
+        elif 'DB' in self.det_algorithm and self.postprocess_op.use_polygon is True:
+            dt_boxes = self.filter_tag_det_res_only_clip(dt_boxes, ori_im.shape)
         else:
             dt_boxes = self.filter_tag_det_res(dt_boxes, ori_im.shape)
 
diff --git a/tools/infer/utility.py b/tools/infer/utility.py
index e555dbec1b314510aaaf6b31f1b35bf60fefa98e..30ae712d1772503e60b65afbaffe3151bb3be9f3 100644
--- a/tools/infer/utility.py
+++ b/tools/infer/utility.py
@@ -58,6 +58,7 @@ def init_args():
     parser.add_argument("--max_batch_size", type=int, default=10)
     parser.add_argument("--use_dilation", type=str2bool, default=False)
     parser.add_argument("--det_db_score_mode", type=str, default="fast")
+    parser.add_argument("--det_use_polygon", type=str2bool, default=False)
     # EAST parmas
     parser.add_argument("--det_east_score_thresh", type=float, default=0.8)
     parser.add_argument("--det_east_cover_thresh", type=float, default=0.1)