diff --git a/src/mynteye/api/processor/depth_processor.h b/src/mynteye/api/processor/depth_processor.h
index 69f2f6d..0d57d04 100644
--- a/src/mynteye/api/processor/depth_processor.h
+++ b/src/mynteye/api/processor/depth_processor.h
@@ -34,6 +34,12 @@ class DepthProcessor : public Processor {
   std::string Name() override;
 
  protected:
+  inline Processor::process_type ProcessOutputConnection() override {
+    return Processor::WITHOUT_CLONE;
+  }
+  inline Processor::process_type ProcessInputConnection() override {
+    return Processor::WITHOUT_CLONE;
+  }
   Object *OnCreateOutput() override;
   bool OnProcess(
       Object *const in, Object *const out,
diff --git a/src/mynteye/api/processor/disparity_processor.h b/src/mynteye/api/processor/disparity_processor.h
index de2a46e..a58bd57 100644
--- a/src/mynteye/api/processor/disparity_processor.h
+++ b/src/mynteye/api/processor/disparity_processor.h
@@ -41,6 +41,12 @@ class DisparityProcessor : public Processor {
   void NotifyComputingTypeChanged(const DisparityComputingMethod &MethodType);
 
  protected:
+  inline Processor::process_type ProcessOutputConnection() override {
+    return Processor::WITHOUT_CLONE;
+  }
+//   inline Processor::process_type ProcessInputConnection() override {
+//     return Processor::WITHOUT_CLONE;
+//   }
   Object *OnCreateOutput() override;
   bool OnProcess(
       Object *const in, Object *const out,
diff --git a/src/mynteye/api/processor/points_processor_ocv.h b/src/mynteye/api/processor/points_processor_ocv.h
index a0d2c0a..0aa22da 100644
--- a/src/mynteye/api/processor/points_processor_ocv.h
+++ b/src/mynteye/api/processor/points_processor_ocv.h
@@ -37,6 +37,12 @@ class PointsProcessorOCV : public Processor {
   bool OnProcess(
       Object *const in, Object *const out,
       std::shared_ptr<Processor> const parent) override;
+  inline Processor::process_type ProcessOutputConnection() override {
+    return Processor::WITHOUT_CLONE;
+  }
+  inline Processor::process_type ProcessInputConnection() override {
+    return Processor::WITHOUT_CLONE;
+  }
 
  private:
   cv::Mat Q_;