diff --git a/csrcs/fastdeploy/vision.h b/csrcs/fastdeploy/vision.h
index 376aaaf28..be1aa91a4 100644
--- a/csrcs/fastdeploy/vision.h
+++ b/csrcs/fastdeploy/vision.h
@@ -23,14 +23,16 @@
 #include "fastdeploy/vision/deepinsight/partial_fc.h"
 #include "fastdeploy/vision/deepinsight/scrfd.h"
 #include "fastdeploy/vision/deepinsight/vpl.h"
+
 #include "fastdeploy/vision/detection/contrib/scaledyolov4.h"
 #include "fastdeploy/vision/detection/contrib/yolor.h"
 #include "fastdeploy/vision/detection/contrib/yolov7.h"
+#include "fastdeploy/vision/detection/ppdet/model.h"
+
 #include "fastdeploy/vision/linzaer/ultraface.h"
 #include "fastdeploy/vision/megvii/yolox.h"
 #include "fastdeploy/vision/meituan/yolov6.h"
 #include "fastdeploy/vision/ppcls/model.h"
-#include "fastdeploy/vision/ppdet/model.h"
 #include "fastdeploy/vision/ppogg/yolov5lite.h"
 #include "fastdeploy/vision/ppseg/model.h"
 #include "fastdeploy/vision/rangilyu/nanodet_plus.h"
diff --git a/csrcs/fastdeploy/vision/detection/detection_pybind.cc b/csrcs/fastdeploy/vision/detection/detection_pybind.cc
index 2ab8e20bb..4516e4717 100644
--- a/csrcs/fastdeploy/vision/detection/detection_pybind.cc
+++ b/csrcs/fastdeploy/vision/detection/detection_pybind.cc
@@ -19,10 +19,12 @@ namespace fastdeploy {
 void BindYOLOv7(pybind11::module& m);
 void BindScaledYOLOv4(pybind11::module& m);
 void BindYOLOR(pybind11::module& m);
+void BindPPDet(pybind11::module& m);
 
 void BindDetection(pybind11::module& m) {
   auto detection_module =
       m.def_submodule("detection", "Image object detection models.");
+  BindPPDet(detection_module);
   BindYOLOv7(detection_module);
   BindScaledYOLOv4(detection_module);
   BindYOLOR(detection_module);
diff --git a/csrcs/fastdeploy/vision/ppdet/model.h b/csrcs/fastdeploy/vision/detection/ppdet/model.h
similarity index 66%
rename from csrcs/fastdeploy/vision/ppdet/model.h
rename to csrcs/fastdeploy/vision/detection/ppdet/model.h
index 17541d7fe..f40c6b7fe 100644
--- a/csrcs/fastdeploy/vision/ppdet/model.h
+++ b/csrcs/fastdeploy/vision/detection/ppdet/model.h
@@ -13,9 +13,9 @@
 // limitations under the License.
 
 #pragma once
-#include "fastdeploy/vision/ppdet/picodet.h"
-#include "fastdeploy/vision/ppdet/ppyolo.h"
-#include "fastdeploy/vision/ppdet/ppyoloe.h"
-#include "fastdeploy/vision/ppdet/rcnn.h"
-#include "fastdeploy/vision/ppdet/yolov3.h"
-#include "fastdeploy/vision/ppdet/yolox.h"
+#include "fastdeploy/vision/detection/ppdet/picodet.h"
+#include "fastdeploy/vision/detection/ppdet/ppyolo.h"
+#include "fastdeploy/vision/detection/ppdet/ppyoloe.h"
+#include "fastdeploy/vision/detection/ppdet/rcnn.h"
+#include "fastdeploy/vision/detection/ppdet/yolov3.h"
+#include "fastdeploy/vision/detection/ppdet/yolox.h"
diff --git a/csrcs/fastdeploy/vision/ppdet/picodet.cc b/csrcs/fastdeploy/vision/detection/ppdet/picodet.cc
similarity index 95%
rename from csrcs/fastdeploy/vision/ppdet/picodet.cc
rename to csrcs/fastdeploy/vision/detection/ppdet/picodet.cc
index 5f912b8cf..d89fab2ae 100644
--- a/csrcs/fastdeploy/vision/ppdet/picodet.cc
+++ b/csrcs/fastdeploy/vision/detection/ppdet/picodet.cc
@@ -12,12 +12,12 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "fastdeploy/vision/ppdet/picodet.h"
+#include "fastdeploy/vision/detection/ppdet/picodet.h"
 #include "yaml-cpp/yaml.h"
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
 PicoDet::PicoDet(const std::string& model_file, const std::string& params_file,
                  const std::string& config_file,
@@ -61,6 +61,6 @@ bool PicoDet::CheckIfContainDecodeAndNMS() {
   return true;
 }
 
-}  // namespace ppdet
+}  // namespace detection
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/picodet.h b/csrcs/fastdeploy/vision/detection/ppdet/picodet.h
similarity index 87%
rename from csrcs/fastdeploy/vision/ppdet/picodet.h
rename to csrcs/fastdeploy/vision/detection/ppdet/picodet.h
index 7b45b9baf..984e56222 100644
--- a/csrcs/fastdeploy/vision/ppdet/picodet.h
+++ b/csrcs/fastdeploy/vision/detection/ppdet/picodet.h
@@ -13,11 +13,11 @@
 // limitations under the License.
 
 #pragma once
-#include "fastdeploy/vision/ppdet/ppyoloe.h"
+#include "fastdeploy/vision/detection/ppdet/ppyoloe.h"
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
 class FASTDEPLOY_DECL PicoDet : public PPYOLOE {
  public:
@@ -29,8 +29,8 @@ class FASTDEPLOY_DECL PicoDet : public PPYOLOE {
   // Only support picodet contains decode and nms
   bool CheckIfContainDecodeAndNMS();
 
-  virtual std::string ModelName() const { return "PaddleDetection/PicoDet"; }
+  virtual std::string ModelName() const { return "PicoDet"; }
 };
-}  // namespace ppdet
+}  // namespace detection
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/ppdet_pybind.cc b/csrcs/fastdeploy/vision/detection/ppdet/ppdet_pybind.cc
similarity index 65%
rename from csrcs/fastdeploy/vision/ppdet/ppdet_pybind.cc
rename to csrcs/fastdeploy/vision/detection/ppdet/ppdet_pybind.cc
index bcc1a0478..2f4b0fefc 100644
--- a/csrcs/fastdeploy/vision/ppdet/ppdet_pybind.cc
+++ b/csrcs/fastdeploy/vision/detection/ppdet/ppdet_pybind.cc
@@ -15,68 +15,77 @@
 
 namespace fastdeploy {
 void BindPPDet(pybind11::module& m) {
-  auto ppdet_module =
-      m.def_submodule("ppdet", "Module to deploy PaddleDetection.");
-  pybind11::class_<vision::ppdet::PPYOLOE, FastDeployModel>(ppdet_module,
+  pybind11::class_<vision::detection::PPYOLOE, FastDeployModel>(m,
                                                             "PPYOLOE")
       .def(pybind11::init<std::string, std::string, std::string, RuntimeOption,
                           Frontend>())
-      .def("predict", [](vision::ppdet::PPYOLOE& self, pybind11::array& data) {
+      .def("predict", [](vision::detection::PPYOLOE& self, pybind11::array& data) {
         auto mat = PyArrayToCvMat(data);
         vision::DetectionResult res;
         self.Predict(&mat, &res);
         return res;
       });
 
-  pybind11::class_<vision::ppdet::PPYOLO, FastDeployModel>(ppdet_module,
+  pybind11::class_<vision::detection::PPYOLO, FastDeployModel>(m,
                                                            "PPYOLO")
       .def(pybind11::init<std::string, std::string, std::string, RuntimeOption,
                           Frontend>())
-      .def("predict", [](vision::ppdet::PPYOLO& self, pybind11::array& data) {
+      .def("predict", [](vision::detection::PPYOLO& self, pybind11::array& data) {
         auto mat = PyArrayToCvMat(data);
         vision::DetectionResult res;
         self.Predict(&mat, &res);
         return res;
       });
 
-  pybind11::class_<vision::ppdet::PicoDet, FastDeployModel>(ppdet_module,
+  pybind11::class_<vision::detection::PPYOLOv2, FastDeployModel>(m,
+                                                           "PPYOLOv2")
+      .def(pybind11::init<std::string, std::string, std::string, RuntimeOption,
+                          Frontend>())
+      .def("predict", [](vision::detection::PPYOLOv2& self, pybind11::array& data) {
+        auto mat = PyArrayToCvMat(data);
+        vision::DetectionResult res;
+        self.Predict(&mat, &res);
+        return res;
+      });
+
+  pybind11::class_<vision::detection::PicoDet, FastDeployModel>(m,
                                                             "PicoDet")
       .def(pybind11::init<std::string, std::string, std::string, RuntimeOption,
                           Frontend>())
-      .def("predict", [](vision::ppdet::PicoDet& self, pybind11::array& data) {
+      .def("predict", [](vision::detection::PicoDet& self, pybind11::array& data) {
         auto mat = PyArrayToCvMat(data);
         vision::DetectionResult res;
         self.Predict(&mat, &res);
         return res;
       });
 
-  pybind11::class_<vision::ppdet::YOLOX, FastDeployModel>(ppdet_module, "YOLOX")
+  pybind11::class_<vision::detection::PaddleYOLOX, FastDeployModel>(m, "PaddleYOLOX")
       .def(pybind11::init<std::string, std::string, std::string, RuntimeOption,
                           Frontend>())
-      .def("predict", [](vision::ppdet::YOLOX& self, pybind11::array& data) {
+      .def("predict", [](vision::detection::PaddleYOLOX& self, pybind11::array& data) {
         auto mat = PyArrayToCvMat(data);
         vision::DetectionResult res;
         self.Predict(&mat, &res);
         return res;
       });
 
-  pybind11::class_<vision::ppdet::FasterRCNN, FastDeployModel>(ppdet_module,
+  pybind11::class_<vision::detection::FasterRCNN, FastDeployModel>(m,
                                                                "FasterRCNN")
       .def(pybind11::init<std::string, std::string, std::string, RuntimeOption,
                           Frontend>())
       .def("predict",
-           [](vision::ppdet::FasterRCNN& self, pybind11::array& data) {
+           [](vision::detection::FasterRCNN& self, pybind11::array& data) {
              auto mat = PyArrayToCvMat(data);
              vision::DetectionResult res;
              self.Predict(&mat, &res);
              return res;
            });
 
-  pybind11::class_<vision::ppdet::YOLOv3, FastDeployModel>(ppdet_module,
+  pybind11::class_<vision::detection::YOLOv3, FastDeployModel>(m,
                                                            "YOLOv3")
       .def(pybind11::init<std::string, std::string, std::string, RuntimeOption,
                           Frontend>())
-      .def("predict", [](vision::ppdet::YOLOv3& self, pybind11::array& data) {
+      .def("predict", [](vision::detection::YOLOv3& self, pybind11::array& data) {
         auto mat = PyArrayToCvMat(data);
         vision::DetectionResult res;
         self.Predict(&mat, &res);
diff --git a/csrcs/fastdeploy/vision/ppdet/ppyolo.cc b/csrcs/fastdeploy/vision/detection/ppdet/ppyolo.cc
similarity index 96%
rename from csrcs/fastdeploy/vision/ppdet/ppyolo.cc
rename to csrcs/fastdeploy/vision/detection/ppdet/ppyolo.cc
index 194ad4f69..6c202f0d0 100644
--- a/csrcs/fastdeploy/vision/ppdet/ppyolo.cc
+++ b/csrcs/fastdeploy/vision/detection/ppdet/ppyolo.cc
@@ -12,11 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "fastdeploy/vision/ppdet/ppyolo.h"
+#include "fastdeploy/vision/detection/ppdet/ppyolo.h"
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
 PPYOLO::PPYOLO(const std::string& model_file, const std::string& params_file,
                const std::string& config_file,
@@ -73,6 +73,6 @@ bool PPYOLO::Preprocess(Mat* mat, std::vector<FDTensor>* outputs) {
   return true;
 }
 
-}  // namespace ppdet
+}  // namespace detection
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/detection/ppdet/ppyolo.h b/csrcs/fastdeploy/vision/detection/ppdet/ppyolo.h
new file mode 100644
index 000000000..1b3b48780
--- /dev/null
+++ b/csrcs/fastdeploy/vision/detection/ppdet/ppyolo.h
@@ -0,0 +1,51 @@
+// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+#include "fastdeploy/vision/detection/ppdet/ppyoloe.h"
+
+namespace fastdeploy {
+namespace vision {
+namespace detection {
+
+class FASTDEPLOY_DECL PPYOLO : public PPYOLOE {
+ public:
+  PPYOLO(const std::string& model_file, const std::string& params_file,
+         const std::string& config_file,
+         const RuntimeOption& custom_option = RuntimeOption(),
+         const Frontend& model_format = Frontend::PADDLE);
+
+  virtual std::string ModelName() const { return "PaddleDetection/PPYOLO"; }
+
+  virtual bool Preprocess(Mat* mat, std::vector<FDTensor>* outputs);
+  virtual bool Initialize();
+
+ protected:
+  PPYOLO() {}
+};
+
+class FASTDEPLOY_DECL PPYOLOv2 : public PPYOLO {
+  public:
+  PPYOLOv2(const std::string& model_file, const std::string& params_file,
+         const std::string& config_file,
+         const RuntimeOption& custom_option = RuntimeOption(),
+         const Frontend& model_format = Frontend::PADDLE) : PPYOLO(model_file, params_file, config_file, custom_option, model_format) {
+  }
+
+  virtual std::string ModelName() const { return "PaddleDetection/PPYOLOv2"; }
+};
+
+}  // namespace detection
+}  // namespace vision
+}  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/ppyoloe.cc b/csrcs/fastdeploy/vision/detection/ppdet/ppyoloe.cc
similarity index 98%
rename from csrcs/fastdeploy/vision/ppdet/ppyoloe.cc
rename to csrcs/fastdeploy/vision/detection/ppdet/ppyoloe.cc
index 0e7d00c64..2e4b56ecb 100644
--- a/csrcs/fastdeploy/vision/ppdet/ppyoloe.cc
+++ b/csrcs/fastdeploy/vision/detection/ppdet/ppyoloe.cc
@@ -1,4 +1,4 @@
-#include "fastdeploy/vision/ppdet/ppyoloe.h"
+#include "fastdeploy/vision/detection/ppdet/ppyoloe.h"
 #include "fastdeploy/vision/utils/utils.h"
 #include "yaml-cpp/yaml.h"
 #ifdef ENABLE_PADDLE_FRONTEND
@@ -7,7 +7,7 @@
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
 PPYOLOE::PPYOLOE(const std::string& model_file, const std::string& params_file,
                  const std::string& config_file,
@@ -253,6 +253,6 @@ bool PPYOLOE::Predict(cv::Mat* im, DetectionResult* result) {
   return true;
 }
 
-}  // namespace ppdet
+}  // namespace detection
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/ppyoloe.h b/csrcs/fastdeploy/vision/detection/ppdet/ppyoloe.h
similarity index 90%
rename from csrcs/fastdeploy/vision/ppdet/ppyoloe.h
rename to csrcs/fastdeploy/vision/detection/ppdet/ppyoloe.h
index 3b7e24479..2d8cca99f 100644
--- a/csrcs/fastdeploy/vision/ppdet/ppyoloe.h
+++ b/csrcs/fastdeploy/vision/detection/ppdet/ppyoloe.h
@@ -21,7 +21,7 @@
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
 class FASTDEPLOY_DECL PPYOLOE : public FastDeployModel {
  public:
@@ -63,10 +63,6 @@ class FASTDEPLOY_DECL PPYOLOE : public FastDeployModel {
   void GetNmsInfo();
 };
 
-// Read configuration and build pipeline to process input image
-bool BuildPreprocessPipelineFromConfig(
-    std::vector<std::shared_ptr<Processor>>* processors,
-    const std::string& config_file);
-}  // namespace ppdet
+}  // namespace detection 
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/rcnn.cc b/csrcs/fastdeploy/vision/detection/ppdet/rcnn.cc
similarity index 96%
rename from csrcs/fastdeploy/vision/ppdet/rcnn.cc
rename to csrcs/fastdeploy/vision/detection/ppdet/rcnn.cc
index c976293a8..38ecc3d1c 100644
--- a/csrcs/fastdeploy/vision/ppdet/rcnn.cc
+++ b/csrcs/fastdeploy/vision/detection/ppdet/rcnn.cc
@@ -12,11 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "fastdeploy/vision/ppdet/rcnn.h"
+#include "fastdeploy/vision/detection/ppdet/rcnn.h"
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
 FasterRCNN::FasterRCNN(const std::string& model_file,
                        const std::string& params_file,
@@ -79,6 +79,6 @@ bool FasterRCNN::Preprocess(Mat* mat, std::vector<FDTensor>* outputs) {
   return true;
 }
 
-}  // namespace ppdet
+}  // namespace detection
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/rcnn.h b/csrcs/fastdeploy/vision/detection/ppdet/rcnn.h
similarity index 92%
rename from csrcs/fastdeploy/vision/ppdet/rcnn.h
rename to csrcs/fastdeploy/vision/detection/ppdet/rcnn.h
index 2a9255a54..d44ca852e 100644
--- a/csrcs/fastdeploy/vision/ppdet/rcnn.h
+++ b/csrcs/fastdeploy/vision/detection/ppdet/rcnn.h
@@ -13,11 +13,11 @@
 // limitations under the License.
 
 #pragma once
-#include "fastdeploy/vision/ppdet/ppyoloe.h"
+#include "fastdeploy/vision/detection/ppdet/ppyoloe.h"
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
 class FASTDEPLOY_DECL FasterRCNN : public PPYOLOE {
  public:
@@ -34,6 +34,6 @@ class FASTDEPLOY_DECL FasterRCNN : public PPYOLOE {
  protected:
   FasterRCNN() {}
 };
-}  // namespace ppdet
+}  // namespace detection
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/yolov3.cc b/csrcs/fastdeploy/vision/detection/ppdet/yolov3.cc
similarity index 95%
rename from csrcs/fastdeploy/vision/ppdet/yolov3.cc
rename to csrcs/fastdeploy/vision/detection/ppdet/yolov3.cc
index a02853dbb..309d65640 100644
--- a/csrcs/fastdeploy/vision/ppdet/yolov3.cc
+++ b/csrcs/fastdeploy/vision/detection/ppdet/yolov3.cc
@@ -12,11 +12,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "fastdeploy/vision/ppdet/yolov3.h"
+#include "fastdeploy/vision/detection/ppdet/yolov3.h"
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
 YOLOv3::YOLOv3(const std::string& model_file, const std::string& params_file,
                const std::string& config_file,
@@ -59,6 +59,6 @@ bool YOLOv3::Preprocess(Mat* mat, std::vector<FDTensor>* outputs) {
   return true;
 }
 
-}  // namespace ppdet
+}  // namespace detection
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/yolov3.h b/csrcs/fastdeploy/vision/detection/ppdet/yolov3.h
similarity index 91%
rename from csrcs/fastdeploy/vision/ppdet/yolov3.h
rename to csrcs/fastdeploy/vision/detection/ppdet/yolov3.h
index 27b1352c9..1b65bfca1 100644
--- a/csrcs/fastdeploy/vision/ppdet/yolov3.h
+++ b/csrcs/fastdeploy/vision/detection/ppdet/yolov3.h
@@ -13,11 +13,11 @@
 // limitations under the License.
 
 #pragma once
-#include "fastdeploy/vision/ppdet/ppyoloe.h"
+#include "fastdeploy/vision/detection/ppdet/ppyoloe.h"
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
 class FASTDEPLOY_DECL YOLOv3 : public PPYOLOE {
  public:
@@ -30,6 +30,6 @@ class FASTDEPLOY_DECL YOLOv3 : public PPYOLOE {
 
   virtual bool Preprocess(Mat* mat, std::vector<FDTensor>* outputs);
 };
-}  // namespace ppdet
+}  // namespace detection
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/yolox.cc b/csrcs/fastdeploy/vision/detection/ppdet/yolox.cc
similarity index 89%
rename from csrcs/fastdeploy/vision/ppdet/yolox.cc
rename to csrcs/fastdeploy/vision/detection/ppdet/yolox.cc
index 44f4ec055..a60ebfcc4 100644
--- a/csrcs/fastdeploy/vision/ppdet/yolox.cc
+++ b/csrcs/fastdeploy/vision/detection/ppdet/yolox.cc
@@ -12,13 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "fastdeploy/vision/ppdet/yolox.h"
+#include "fastdeploy/vision/detection/ppdet/yolox.h"
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
-YOLOX::YOLOX(const std::string& model_file, const std::string& params_file,
+PaddleYOLOX::PaddleYOLOX(const std::string& model_file, const std::string& params_file,
              const std::string& config_file, const RuntimeOption& custom_option,
              const Frontend& model_format) {
   config_file_ = config_file;
@@ -38,7 +38,7 @@ YOLOX::YOLOX(const std::string& model_file, const std::string& params_file,
   initialized = Initialize();
 }
 
-bool YOLOX::Preprocess(Mat* mat, std::vector<FDTensor>* outputs) {
+bool PaddleYOLOX::Preprocess(Mat* mat, std::vector<FDTensor>* outputs) {
   int origin_w = mat->Width();
   int origin_h = mat->Height();
   float scale[2] = {1.0, 1.0};
@@ -67,6 +67,6 @@ bool YOLOX::Preprocess(Mat* mat, std::vector<FDTensor>* outputs) {
   ptr[1] = scale[1];
   return true;
 }
-}  // namespace ppdet
+}  // namespace detection
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/yolox.h b/csrcs/fastdeploy/vision/detection/ppdet/yolox.h
similarity index 81%
rename from csrcs/fastdeploy/vision/ppdet/yolox.h
rename to csrcs/fastdeploy/vision/detection/ppdet/yolox.h
index e689674a4..4ffe2f39c 100644
--- a/csrcs/fastdeploy/vision/ppdet/yolox.h
+++ b/csrcs/fastdeploy/vision/detection/ppdet/yolox.h
@@ -13,15 +13,15 @@
 // limitations under the License.
 
 #pragma once
-#include "fastdeploy/vision/ppdet/ppyoloe.h"
+#include "fastdeploy/vision/detection/ppdet/ppyoloe.h"
 
 namespace fastdeploy {
 namespace vision {
-namespace ppdet {
+namespace detection {
 
-class FASTDEPLOY_DECL YOLOX : public PPYOLOE {
+class FASTDEPLOY_DECL PaddleYOLOX : public PPYOLOE {
  public:
-  YOLOX(const std::string& model_file, const std::string& params_file,
+  PaddleYOLOX(const std::string& model_file, const std::string& params_file,
         const std::string& config_file,
         const RuntimeOption& custom_option = RuntimeOption(),
         const Frontend& model_format = Frontend::PADDLE);
@@ -30,6 +30,6 @@ class FASTDEPLOY_DECL YOLOX : public PPYOLOE {
 
   virtual std::string ModelName() const { return "PaddleDetection/YOLOX"; }
 };
-}  // namespace ppdet
+}  // namespace detection
 }  // namespace vision
 }  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/build_preprocess.cc b/csrcs/fastdeploy/vision/ppdet/build_preprocess.cc
deleted file mode 100644
index 20348214e..000000000
--- a/csrcs/fastdeploy/vision/ppdet/build_preprocess.cc
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#include "fastdeploy/vision/common/processors/transform.h"
-#include "fastdeploy/vision/ppdet/ppyoloe.h"
-#include "yaml-cpp/yaml.h"
-
-namespace fastdeploy {
-namespace vision {
-
-bool BuildPreprocessPipelineFromConfig(
-    std::vector<std::shared_ptr<Processor>>* processors,
-    const std::string& config_file) {
-  processors->clear();
-  YAML::Node cfg;
-  try {
-    cfg = YAML::LoadFile(config_file);
-  } catch (YAML::BadFile& e) {
-    FDERROR << "Failed to load yaml file " << config_file
-            << ", maybe you should check this file." << std::endl;
-    return false;
-  }
-
-  processors->push_back(std::make_shared<BGR2RGB>());
-
-  for (const auto& op : cfg["Preprocess"]) {
-    std::string op_name = op["type"].as<std::string>();
-    if (op_name == "NormalizeImage") {
-      auto mean = op["mean"].as<std::vector<float>>();
-      auto std = op["std"].as<std::vector<float>>();
-      bool is_scale = op["is_scale"].as<bool>();
-      processors->push_back(std::make_shared<Normalize>(mean, std, is_scale));
-    } else if (op_name == "Resize") {
-      bool keep_ratio = op["keep_ratio"].as<bool>();
-      auto target_size = op["target_size"].as<std::vector<int>>();
-      int interp = op["interp"].as<int>();
-      FDASSERT(target_size.size(),
-               "Require size of target_size be 2, but now it's " +
-                   std::to_string(target_size.size()) + ".");
-      if (!keep_ratio) {
-        int width = target_size[1];
-        int height = target_size[0];
-        processors->push_back(
-            std::make_shared<Resize>(width, height, -1.0, -1.0, interp, false));
-      } else {
-        int min_target_size = std::min(target_size[0], target_size[1]);
-        int max_target_size = std::max(target_size[0], target_size[1]);
-        processors->push_back(std::make_shared<ResizeByShort>(
-            min_target_size, interp, true, max_target_size));
-      }
-    } else if (op_name == "Permute") {
-      // Do nothing, do permute as the last operation
-      continue;
-    } else if (op_name == "Pad") {
-      auto size = op["size"].as<std::vector<int>>();
-      auto value = op["fill_value"].as<std::vector<float>>();
-      processors->push_back(std::make_shared<Cast>("float"));
-      processors->push_back(
-          std::make_shared<PadToSize>(size[1], size[0], value));
-    } else if (op_name == "PadStride") {
-      auto stride = op["stride"].as<int>();
-      processors->push_back(
-          std::make_shared<StridePad>(stride, std::vector<float>(3, 0)));
-    } else {
-      FDERROR << "Unexcepted preprocess operator: " << op_name << "."
-              << std::endl;
-      return false;
-    }
-  }
-  processors->push_back(std::make_shared<HWC2CHW>());
-  return true;
-}
-
-}  // namespace vision
-}  // namespace fastdeploy
diff --git a/csrcs/fastdeploy/vision/ppdet/ppyolo.h b/csrcs/fastdeploy/vision/ppdet/ppyolo.h
deleted file mode 100644
index b17f54b3e..000000000
--- a/csrcs/fastdeploy/vision/ppdet/ppyolo.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#pragma once
-#include "fastdeploy/vision/ppdet/ppyoloe.h"
-
-namespace fastdeploy {
-namespace vision {
-namespace ppdet {
-
-class FASTDEPLOY_DECL PPYOLO : public PPYOLOE {
- public:
-  PPYOLO(const std::string& model_file, const std::string& params_file,
-         const std::string& config_file,
-         const RuntimeOption& custom_option = RuntimeOption(),
-         const Frontend& model_format = Frontend::PADDLE);
-
-  virtual std::string ModelName() const { return "PaddleDetection/PPYOLO"; }
-
-  virtual bool Preprocess(Mat* mat, std::vector<FDTensor>* outputs);
-  virtual bool Initialize();
-
- protected:
-  PPYOLO() {}
-};
-}  // namespace ppdet
-}  // namespace vision
-}  // namespace fastdeploy
diff --git a/fastdeploy/vision/detection/__init__.py b/fastdeploy/vision/detection/__init__.py
index 9d412774a..92a292b54 100644
--- a/fastdeploy/vision/detection/__init__.py
+++ b/fastdeploy/vision/detection/__init__.py
@@ -16,3 +16,5 @@ from __future__ import absolute_import
 from .yolov7 import YOLOv7
 from .yolor import YOLOR
 from .scaled_yolov4 import ScaledYOLOv4
+
+from .ppdet import PPYOLOE, PPYOLO, PPYOLOv2, PaddleYOLOX, PicoDet, FasterRCNN, YOLOv3
diff --git a/fastdeploy/vision/ppdet/__init__.py b/fastdeploy/vision/detection/ppdet/__init__.py
similarity index 76%
rename from fastdeploy/vision/ppdet/__init__.py
rename to fastdeploy/vision/detection/ppdet/__init__.py
index 6d3738412..775ba6a20 100644
--- a/fastdeploy/vision/ppdet/__init__.py
+++ b/fastdeploy/vision/detection/ppdet/__init__.py
@@ -28,7 +28,7 @@ class PPYOLOE(FastDeployModel):
         super(PPYOLOE, self).__init__(runtime_option)
 
         assert model_format == Frontend.PADDLE, "PPYOLOE model only support model format of Frontend.Paddle now."
-        self._model = C.vision.ppdet.PPYOLOE(model_file, params_file,
+        self._model = C.vision.detection.PPYOLOE(model_file, params_file,
                                              config_file, self._runtime_option,
                                              model_format)
         assert self.initialized, "PPYOLOE model initialize failed."
@@ -48,13 +48,13 @@ class PPYOLO(PPYOLOE):
         super(PPYOLOE, self).__init__(runtime_option)
 
         assert model_format == Frontend.PADDLE, "PPYOLO model only support model format of Frontend.Paddle now."
-        self._model = C.vision.ppdet.PPYOLO(model_file, params_file,
+        self._model = C.vision.detection.PPYOLO(model_file, params_file,
                                             config_file, self._runtime_option,
                                             model_format)
         assert self.initialized, "PPYOLO model initialize failed."
 
 
-class YOLOX(PPYOLOE):
+class PPYOLOv2(PPYOLOE):
     def __init__(self,
                  model_file,
                  params_file,
@@ -63,11 +63,27 @@ class YOLOX(PPYOLOE):
                  model_format=Frontend.PADDLE):
         super(PPYOLOE, self).__init__(runtime_option)
 
-        assert model_format == Frontend.PADDLE, "YOLOX model only support model format of Frontend.Paddle now."
-        self._model = C.vision.ppdet.YOLOX(model_file, params_file,
+        assert model_format == Frontend.PADDLE, "PPYOLOv2 model only support model format of Frontend.Paddle now."
+        self._model = C.vision.detection.PPYOLOv2(model_file, params_file,
+                                            config_file, self._runtime_option,
+                                            model_format)
+        assert self.initialized, "PPYOLOv2 model initialize failed."
+
+
+class PaddleYOLOX(PPYOLOE):
+    def __init__(self,
+                 model_file,
+                 params_file,
+                 config_file,
+                 runtime_option=None,
+                 model_format=Frontend.PADDLE):
+        super(PPYOLOE, self).__init__(runtime_option)
+
+        assert model_format == Frontend.PADDLE, "PaddleYOLOX model only support model format of Frontend.Paddle now."
+        self._model = C.vision.detection.PaddleYOLOX(model_file, params_file,
                                            config_file, self._runtime_option,
                                            model_format)
-        assert self.initialized, "YOLOX model initialize failed."
+        assert self.initialized, "PaddleYOLOX model initialize failed."
 
 
 class PicoDet(PPYOLOE):
@@ -80,7 +96,7 @@ class PicoDet(PPYOLOE):
         super(PPYOLOE, self).__init__(runtime_option)
 
         assert model_format == Frontend.PADDLE, "PicoDet model only support model format of Frontend.Paddle now."
-        self._model = C.vision.ppdet.PicoDet(model_file, params_file,
+        self._model = C.vision.detection.PicoDet(model_file, params_file,
                                              config_file, self._runtime_option,
                                              model_format)
         assert self.initialized, "PicoDet model initialize failed."
@@ -96,7 +112,7 @@ class FasterRCNN(PPYOLOE):
         super(PPYOLOE, self).__init__(runtime_option)
 
         assert model_format == Frontend.PADDLE, "FasterRCNN model only support model format of Frontend.Paddle now."
-        self._model = C.vision.ppdet.FasterRCNN(
+        self._model = C.vision.detection.FasterRCNN(
             model_file, params_file, config_file, self._runtime_option,
             model_format)
         assert self.initialized, "FasterRCNN model initialize failed."
@@ -112,7 +128,7 @@ class YOLOv3(PPYOLOE):
         super(PPYOLOE, self).__init__(runtime_option)
 
         assert model_format == Frontend.PADDLE, "YOLOv3 model only support model format of Frontend.Paddle now."
-        self._model = C.vision.ppdet.YOLOv3(model_file, params_file,
+        self._model = C.vision.detection.YOLOv3(model_file, params_file,
                                             config_file, self._runtime_option,
                                             model_format)
         assert self.initialized, "YOLOv3 model initialize failed."