diff --git a/modules/viz/src/shapes.cpp b/modules/viz/src/shapes.cpp
index c177a9b673..bcd6870df1 100644
--- a/modules/viz/src/shapes.cpp
+++ b/modules/viz/src/shapes.cpp
@@ -45,14 +45,6 @@
 
 #include "precomp.hpp"
 
-namespace cv
-{
-    namespace viz
-    {
-        template<typename _Tp> Vec<_Tp, 3>* vtkpoints_data(vtkSmartPointer<vtkPoints>& points);
-    }
-}
-
 ///////////////////////////////////////////////////////////////////////////////////////////////
 /// line widget implementation
 cv::viz::WLine::WLine(const Point3d &pt1, const Point3d &pt2, const Color &color)
@@ -350,7 +342,7 @@ cv::viz::WCoordinateSystem::WCoordinateSystem(double scale)
     polydata->GetPointData()->SetScalars(colors);
 
     vtkSmartPointer<vtkTubeFilter> tube_filter = vtkSmartPointer<vtkTubeFilter>::New();
-    VtkUtils::SetInputData(tube_filter, polydata);
+    tube_filter->SetInputConnection(polydata->GetProducerPort());
     tube_filter->SetRadius(axes->GetScaleFactor() / 50.0);
     tube_filter->SetNumberOfSides(6);
 
@@ -445,11 +437,7 @@ namespace cv { namespace viz { namespace
 
             // Extract the edges so we have the grid
             vtkSmartPointer<vtkExtractEdges> filter = vtkSmartPointer<vtkExtractEdges>::New();
-#if VTK_MAJOR_VERSION <= 5
             filter->SetInputConnection(grid->GetProducerPort());
-#else
-            filter->SetInputData(grid);
-#endif
             filter->Update();
             return filter->GetOutput();
         }
@@ -461,11 +449,7 @@ cv::viz::WGrid::WGrid(const Vec2i &dimensions, const Vec2d &spacing, const Color
     vtkSmartPointer<vtkPolyData> grid = GridUtils::createGrid(dimensions, spacing);
 
     vtkSmartPointer<vtkPolyDataMapper> mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
-#if VTK_MAJOR_VERSION <= 5
     mapper->SetInputConnection(grid->GetProducerPort());
-#else
-    mapper->SetInputData(grid);
-#endif
 
     vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
     actor->SetMapper(mapper);
diff --git a/modules/viz/src/vizcore.cpp b/modules/viz/src/vizcore.cpp
index ffb2d84f55..a6b2fffaa1 100644
--- a/modules/viz/src/vizcore.cpp
+++ b/modules/viz/src/vizcore.cpp
@@ -64,27 +64,6 @@ cv::Affine3d cv::viz::makeCameraPose(const Vec3d& position, const Vec3d& focal_p
     return makeTransformToGlobal(u, v, n, position);
 }
 
-namespace cv { namespace viz
-{
-    template<typename _Tp> Vec<_Tp, 3>* vtkpoints_data(vtkSmartPointer<vtkPoints>& points);
-
-    template<> Vec3f* vtkpoints_data<float>(vtkSmartPointer<vtkPoints>& points)
-    {
-        CV_Assert(points->GetDataType() == VTK_FLOAT);
-        vtkDataArray *data = points->GetData();
-        float *pointer = static_cast<vtkFloatArray*>(data)->GetPointer(0);
-        return reinterpret_cast<Vec3f*>(pointer);
-    }
-
-    template<> Vec3d* vtkpoints_data<double>(vtkSmartPointer<vtkPoints>& points)
-    {
-        CV_Assert(points->GetDataType() == VTK_DOUBLE);
-        vtkDataArray *data = points->GetData();
-        double *pointer = static_cast<vtkDoubleArray*>(data)->GetPointer(0);
-        return reinterpret_cast<Vec3d*>(pointer);
-    }
-}}
-
 ///////////////////////////////////////////////////////////////////////////////////////////////
 /// VizStorage implementation
 
@@ -308,11 +287,7 @@ void cv::viz::computeNormals(const Mesh3d& mesh, OutputArray _normals)
     vtkSmartPointer<vtkPolyData> polydata = getPolyData(WMesh(mesh));
 
     vtkSmartPointer<vtkPolyDataNormals> normal_generator = vtkSmartPointer<vtkPolyDataNormals>::New();
-#if VTK_MAJOR_VERSION <= 5
-    normal_generator->SetInput(polydata);
-#else
-    normal_generator->SetInputData(polydata);
-#endif
+    normal_generator->SetInputConnection(polydata->GetProducerPort());
     normal_generator->ComputePointNormalsOn();
     normal_generator->ComputeCellNormalsOff();