diff --git a/tools/infer/predict_cls.py b/tools/infer/predict_cls.py
index 1e131e61b3c07c739a0ad3b5c62798ea3c38486b..00f0ffc1fe3387f139789490c4e6557eebb646d0 100755
--- a/tools/infer/predict_cls.py
+++ b/tools/infer/predict_cls.py
@@ -31,6 +31,8 @@ from ppocr.postprocess import build_post_process
 from ppocr.utils.logging import get_logger
 from ppocr.utils.utility import get_image_file_list, check_and_read_gif
 
+logger = get_logger()
+
 
 class TextClassifier(object):
     def __init__(self, args):
@@ -147,5 +149,4 @@ def main(args):
 
 
 if __name__ == "__main__":
-    logger = get_logger()
     main(utility.parse_args())
diff --git a/tools/infer/predict_det.py b/tools/infer/predict_det.py
index a3850028f05a791b5eba3c973a4b20fdb177446e..69db67db3588ec551b9e586ce439ddc96154b899 100755
--- a/tools/infer/predict_det.py
+++ b/tools/infer/predict_det.py
@@ -30,6 +30,8 @@ from ppocr.utils.utility import get_image_file_list, check_and_read_gif
 from ppocr.data import create_operators, transform
 from ppocr.postprocess import build_post_process
 
+logger = get_logger()
+
 
 class TextDetector(object):
     def __init__(self, args):
@@ -158,9 +160,7 @@ class TextDetector(object):
 
 if __name__ == "__main__":
     args = utility.parse_args()
-
     image_file_list = get_image_file_list(args.image_dir)
-    logger = get_logger()
     text_detector = TextDetector(args)
     count = 0
     total_time = 0
diff --git a/tools/infer/predict_rec.py b/tools/infer/predict_rec.py
index a55f671e70f0e28e62429c38af93119f635b2eb0..54dbb03b570b605e5c05150b5fabef4d45d4337a 100755
--- a/tools/infer/predict_rec.py
+++ b/tools/infer/predict_rec.py
@@ -13,12 +13,12 @@
 # limitations under the License.
 import os
 import sys
+
 __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(__dir__)
 sys.path.append(os.path.abspath(os.path.join(__dir__, '../..')))
 
 import cv2
-import copy
 import numpy as np
 import math
 import time
@@ -30,6 +30,8 @@ from ppocr.postprocess import build_post_process
 from ppocr.utils.logging import get_logger
 from ppocr.utils.utility import get_image_file_list, check_and_read_gif
 
+logger = get_logger()
+
 
 class TextRecognizer(object):
     def __init__(self, args):
@@ -80,7 +82,7 @@ class TextRecognizer(object):
         # rec_res = []
         rec_res = [['', 0.0]] * img_num
         batch_num = self.rec_batch_num
-        predict_time = 0
+        elapse = 0
         for beg_img_no in range(0, img_num, batch_num):
             end_img_no = min(img_num, beg_img_no + batch_num)
             norm_img_batch = []
@@ -110,7 +112,9 @@ class TextRecognizer(object):
                 output = output_tensor.copy_to_cpu()
                 outputs.append(output)
             preds = outputs[0]
-            rec_res = self.postprocess_op(preds)
+            rec_result = self.postprocess_op(preds)
+            for rno in range(len(rec_result)):
+                rec_res[indices[beg_img_no + rno]] = rec_result[rno]
             elapse = time.time() - starttime
         return rec_res, elapse
 
@@ -147,5 +151,4 @@ def main(args):
 
 
 if __name__ == "__main__":
-    logger = get_logger()
     main(utility.parse_args())
diff --git a/tools/infer/predict_system.py b/tools/infer/predict_system.py
index 647a76b20496335cd059242890f86fffe1e3ac1a..4e81039745ff63985728113ef99fb9e3c54daca5 100755
--- a/tools/infer/predict_system.py
+++ b/tools/infer/predict_system.py
@@ -17,20 +17,17 @@ __dir__ = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(__dir__)
 sys.path.append(os.path.abspath(os.path.join(__dir__, '../..')))
 
-import tools.infer.utility as utility
-from ppocr.utils.utility import initial_logger
-logger = initial_logger()
 import cv2
-import tools.infer.predict_det as predict_det
-import tools.infer.predict_rec as predict_rec
 import copy
 import numpy as np
-import math
 import time
-from ppocr.utils.utility import get_image_file_list, check_and_read_gif
 from PIL import Image
+import tools.infer.utility as utility
 from tools.infer.utility import draw_ocr
-from tools.infer.utility import draw_ocr_box_txt
+import tools.infer.predict_rec as predict_rec
+import tools.infer.predict_det as predict_det
+from ppocr.utils.utility import get_image_file_list, check_and_read_gif
+from ppocr.utils.logging import get_logger
 
 
 class TextSystem(object):
@@ -153,11 +150,7 @@ def main(args):
             scores = [rec_res[i][1] for i in range(len(rec_res))]
 
             draw_img = draw_ocr(
-                image,
-                boxes,
-                txts,
-                scores,
-                drop_score=drop_score)
+                image, boxes, txts, scores, drop_score=drop_score)
             draw_img_save = "./inference_results/"
             if not os.path.exists(draw_img_save):
                 os.makedirs(draw_img_save)
@@ -169,4 +162,5 @@ def main(args):
 
 
 if __name__ == "__main__":
+    logger = get_logger()
     main(utility.parse_args())
diff --git a/tools/infer/utility.py b/tools/infer/utility.py
index cb2e252292c77eb2c9c5dcc9c781d4011b4e6def..5a524516a28bd3fa1f7a9f2800ebace7b9776088 100755
--- a/tools/infer/utility.py
+++ b/tools/infer/utility.py
@@ -39,7 +39,8 @@ def parse_args():
     parser.add_argument("--image_dir", type=str)
     parser.add_argument("--det_algorithm", type=str, default='DB')
     parser.add_argument("--det_model_dir", type=str)
-    parser.add_argument("--det_max_side_len", type=float, default=960)
+    parser.add_argument("--det_limit_side_len", type=float, default=960)
+    parser.add_argument("--det_limit_type", type=str, default='max')
 
     # DB parmas
     parser.add_argument("--det_db_thresh", type=float, default=0.3)