diff --git a/paddlex/configs/ts_anomaly_detection/DLinear_ad.yaml b/paddlex/configs/ts_anomaly_detection/DLinear_ad.yaml
index abffd2e24..6737ba349 100644
--- a/paddlex/configs/ts_anomaly_detection/DLinear_ad.yaml
+++ b/paddlex/configs/ts_anomaly_detection/DLinear_ad.yaml
@@ -1,6 +1,6 @@
 Global:
   model: DLinear_ad
-  mode: predict # check_dataset/train/evaluate/predict
+  mode: check_dataset # check_dataset/train/evaluate/predict
   dataset_dir: "/paddle/dataset/paddlex/ts_ad/ts_anomaly_examples/"
   device: gpu:0
   output: "output"
diff --git a/paddlex/inference/models/base/base_component.py b/paddlex/inference/models/base/base_component.py
index af732844d..c9dfb00b4 100644
--- a/paddlex/inference/models/base/base_component.py
+++ b/paddlex/inference/models/base/base_component.py
@@ -186,7 +186,9 @@ def _check(self):
             cmpt.set_outputs(outputs)
             if idx != 0:
                 for input_key in inputs:
-                    assert input_key in simulation_data
+                    assert (
+                        input_key in simulation_data
+                    ), f"{input_key} is needed by {name}, but not found!"
             simulation_data.extend(list(outputs.values()))
 
     def __call__(self, data, i=0):
diff --git a/paddlex/inference/models/object_detection/config.yaml b/paddlex/inference/models/object_detection/config.yaml
index 7e877f4d6..020957574 100644
--- a/paddlex/inference/models/object_detection/config.yaml
+++ b/paddlex/inference/models/object_detection/config.yaml
@@ -49,11 +49,13 @@ Components:
   ImageDetPredictor:
     inputs:
       img: img
+      scale_factors: scale_factors
     outputs:
       pred: pred
-DetPostProcess:
-    inputs:
-      boxes: boxes
-      img_size: img_size
-    outputs:
       boxes: boxes
+  DetPostProcess:
+      inputs:
+        boxes: boxes
+        img_size: img_size
+      outputs:
+        boxes: boxes
diff --git a/paddlex/inference/models/object_detection/result.py b/paddlex/inference/models/object_detection/result.py
index b7eb29177..5b133e8c3 100644
--- a/paddlex/inference/models/object_detection/result.py
+++ b/paddlex/inference/models/object_detection/result.py
@@ -19,58 +19,59 @@
 from ....utils.fonts import PINGFANG_FONT_FILE_PATH
 from ...utils.color_map import get_colormap, font_colormap
 from ..base import CVResult
+from ...common.funcs import draw_box
 
 
-def draw_box(img, boxes):
-    """
-    Args:
-        img (PIL.Image.Image): PIL image
-        boxes (list): a list of dictionaries representing detection box information.
-    Returns:
-        img (PIL.Image.Image): visualized image
-    """
-    font_size = int(0.024 * int(img.width)) + 2
-    font = ImageFont.truetype(PINGFANG_FONT_FILE_PATH, font_size, encoding="utf-8")
+# def draw_box(img, boxes):
+#     """
+#     Args:
+#         img (PIL.Image.Image): PIL image
+#         boxes (list): a list of dictionaries representing detection box information.
+#     Returns:
+#         img (PIL.Image.Image): visualized image
+#     """
+#     font_size = int(0.024 * int(img.width)) + 2
+#     font = ImageFont.truetype(PINGFANG_FONT_FILE_PATH, font_size, encoding="utf-8")
 
-    draw_thickness = int(max(img.size) * 0.005)
-    draw = ImageDraw.Draw(img)
-    label2color = {}
-    catid2fontcolor = {}
-    color_list = get_colormap(rgb=True)
+#     draw_thickness = int(max(img.size) * 0.005)
+#     draw = ImageDraw.Draw(img)
+#     label2color = {}
+#     catid2fontcolor = {}
+#     color_list = get_colormap(rgb=True)
 
-    for i, dt in enumerate(boxes):
-        # clsid = dt["cls_id"]
-        label, bbox, score = dt["label"], dt["coordinate"], dt["score"]
-        if label not in label2color:
-            color_index = i % len(color_list)
-            label2color[label] = color_list[color_index]
-            catid2fontcolor[label] = font_colormap(color_index)
-        color = tuple(label2color[label])
-        font_color = tuple(catid2fontcolor[label])
+#     for i, dt in enumerate(boxes):
+#         # clsid = dt["cls_id"]
+#         label, bbox, score = dt["label"], dt["coordinate"], dt["score"]
+#         if label not in label2color:
+#             color_index = i % len(color_list)
+#             label2color[label] = color_list[color_index]
+#             catid2fontcolor[label] = font_colormap(color_index)
+#         color = tuple(label2color[label])
+#         font_color = tuple(catid2fontcolor[label])
 
-        xmin, ymin, xmax, ymax = bbox
-        # draw bbox
-        draw.line(
-            [(xmin, ymin), (xmin, ymax), (xmax, ymax), (xmax, ymin), (xmin, ymin)],
-            width=draw_thickness,
-            fill=color,
-        )
+#         xmin, ymin, xmax, ymax = bbox
+#         # draw bbox
+#         draw.line(
+#             [(xmin, ymin), (xmin, ymax), (xmax, ymax), (xmax, ymin), (xmin, ymin)],
+#             width=draw_thickness,
+#             fill=color,
+#         )
 
-        # draw label
-        text = "{} {:.2f}".format(dt["label"], score)
-        if tuple(map(int, PIL.__version__.split("."))) <= (10, 0, 0):
-            tw, th = draw.textsize(text, font=font)
-        else:
-            left, top, right, bottom = draw.textbbox((0, 0), text, font)
-            tw, th = right - left, bottom - top + 4
-        if ymin < th:
-            draw.rectangle([(xmin, ymin), (xmin + tw + 4, ymin + th + 1)], fill=color)
-            draw.text((xmin + 2, ymin - 2), text, fill=font_color, font=font)
-        else:
-            draw.rectangle([(xmin, ymin - th), (xmin + tw + 4, ymin + 1)], fill=color)
-            draw.text((xmin + 2, ymin - th - 2), text, fill=font_color, font=font)
+#         # draw label
+#         text = "{} {:.2f}".format(dt["label"], score)
+#         if tuple(map(int, PIL.__version__.split("."))) <= (10, 0, 0):
+#             tw, th = draw.textsize(text, font=font)
+#         else:
+#             left, top, right, bottom = draw.textbbox((0, 0), text, font)
+#             tw, th = right - left, bottom - top + 4
+#         if ymin < th:
+#             draw.rectangle([(xmin, ymin), (xmin + tw + 4, ymin + th + 1)], fill=color)
+#             draw.text((xmin + 2, ymin - 2), text, fill=font_color, font=font)
+#         else:
+#             draw.rectangle([(xmin, ymin - th), (xmin + tw + 4, ymin + 1)], fill=color)
+#             draw.text((xmin + 2, ymin - th - 2), text, fill=font_color, font=font)
 
-    return img
+#     return img
 
 
 class DetResult(CVResult):