diff --git a/modules/calib3d/src/calibinit.cpp b/modules/calib3d/src/calibinit.cpp
index 31a0231e9996040699425ef38e8a5692c21536b0..3093f5342d94812dbd35a48c23d78490080d093a 100644
--- a/modules/calib3d/src/calibinit.cpp
+++ b/modules/calib3d/src/calibinit.cpp
@@ -1899,7 +1899,7 @@ bool cv::findChessboardCorners( const InputArray& _image, Size patternSize,
 {
     int count = patternSize.area()*2;
     vector<Point2f> tmpcorners(count+1);
-    CvMat c_image = _image.getMat();
+    Mat image = _image.getMat(); CvMat c_image = image;
     bool ok = cvFindChessboardCorners(&c_image, patternSize,
         (CvPoint2D32f*)&tmpcorners[0], &count, flags ) > 0;
     if( count > 0 )
@@ -1919,7 +1919,7 @@ void cv::drawChessboardCorners( InputOutputArray _image, Size patternSize,
     Mat corners = _corners.getMat();
     if( corners.empty() )
         return;
-    CvMat c_image = _image.getMat();
+    Mat image = _image.getMat(); CvMat c_image = _image.getMat();
     int nelems = corners.checkVector(2, CV_32F, true);
     CV_Assert(nelems >= 0);
     cvDrawChessboardCorners( &c_image, patternSize, (CvPoint2D32f*)corners.data,
diff --git a/modules/calib3d/src/calibration.cpp b/modules/calib3d/src/calibration.cpp
index eda40ac45d267cd9c71469271b603abae8b7df29..a91a85ca8f4d077db6f566a510d0006204d1ef29 100644
--- a/modules/calib3d/src/calibration.cpp
+++ b/modules/calib3d/src/calibration.cpp
@@ -3294,11 +3294,14 @@ void cv::projectPoints( const InputArray& _opoints,
     CvMat *pdpdrot=0, *pdpdt=0, *pdpdf=0, *pdpdc=0, *pdpddist=0;
     
     _ipoints.create(npoints, 1, CV_MAKETYPE(depth, 2), -1, true);
-    CvMat imagePoints = _ipoints.getMat();
-    CvMat objectPoints = opoints;
-    CvMat cameraMatrix = _cameraMatrix.getMat();
-    CvMat rvec = _rvec.getMat(), tvec = _tvec.getMat();
-    CvMat distCoeffs = _distCoeffs.getMat();
+    CvMat c_imagePoints = _ipoints.getMat();
+    CvMat c_objectPoints = opoints;
+    Mat cameraMatrix = _cameraMatrix.getMat();
+    Mat distCoeffs = _distCoeffs.getMat();
+    Mat rvec = _rvec.getMat(), tvec = _tvec.getMat();
+    CvMat c_cameraMatrix = cameraMatrix;
+    CvMat c_rvec = rvec, c_tvec = tvec;
+    CvMat c_distCoeffs = distCoeffs;
     int ndistCoeffs = distCoeffs.rows + distCoeffs.cols - 1;
     
     if( _jacobian.needed() )
@@ -3312,8 +3315,8 @@ void cv::projectPoints( const InputArray& _opoints,
         pdpddist = &(dpddist = jacobian.colRange(10, 10+ndistCoeffs));
     }
         
-    cvProjectPoints2( &objectPoints, &rvec, &tvec, &cameraMatrix, &distCoeffs,
-                      &imagePoints, pdpdrot, pdpdt, pdpdf, pdpdc, pdpddist, aspectRatio );
+    cvProjectPoints2( &c_objectPoints, &c_rvec, &c_tvec, &c_cameraMatrix, &c_distCoeffs,
+                      &c_imagePoints, pdpdrot, pdpdt, pdpdf, pdpdc, pdpddist, aspectRatio );
 }
 
 cv::Mat cv::initCameraMatrix2D( const InputArrayOfArrays& objectPoints,
@@ -3378,7 +3381,8 @@ void cv::calibrationMatrixValues( const InputArray& _cameraMatrix, Size imageSiz
                                   double& fovx, double& fovy, double& focalLength,
                                   Point2d& principalPoint, double& aspectRatio )
 {
-    CvMat c_cameraMatrix = _cameraMatrix.getMat();
+    Mat cameraMatrix = _cameraMatrix.getMat();
+    CvMat c_cameraMatrix = cameraMatrix;
     cvCalibrationMatrixValues( &c_cameraMatrix, imageSize, apertureWidth, apertureHeight,
         &fovx, &fovy, &focalLength, (CvPoint2D64f*)&principalPoint, &aspectRatio );
 }
@@ -3453,11 +3457,14 @@ void cv::stereoRectify( const InputArray& _cameraMatrix1, const InputArray& _dis
                         double alpha, Size newImageSize,
                         Rect* validPixROI1, Rect* validPixROI2 )
 {
-    CvMat c_cameraMatrix1 = _cameraMatrix1.getMat();
-    CvMat c_cameraMatrix2 = _cameraMatrix2.getMat();
-    CvMat c_distCoeffs1 = _distCoeffs1.getMat();
-    CvMat c_distCoeffs2 = _distCoeffs2.getMat();
-    CvMat c_R = _Rmat.getMat(), c_T = _Tmat.getMat();
+    Mat cameraMatrix1 = _cameraMatrix1.getMat(), cameraMatrix2 = _cameraMatrix2.getMat();
+    Mat distCoeffs1 = _distCoeffs1.getMat(), distCoeffs2 = _distCoeffs2.getMat();
+    Mat Rmat = _Rmat.getMat(), Tmat = _Tmat.getMat();
+    CvMat c_cameraMatrix1 = cameraMatrix1;
+    CvMat c_cameraMatrix2 = cameraMatrix2;
+    CvMat c_distCoeffs1 = distCoeffs1;
+    CvMat c_distCoeffs2 = distCoeffs2;
+    CvMat c_R = Rmat, c_T = Tmat;
     
     int rtype = CV_64F;
     _Rmat1.create(3, 3, rtype);
@@ -3486,7 +3493,8 @@ bool cv::stereoRectifyUncalibrated( const InputArray& _points1, const InputArray
     _Hmat1.create(3, 3, rtype);
     _Hmat2.create(3, 3, rtype);
     Mat F = _Fmat.getMat();
-    CvMat c_pt1 = _points1.getMat(), c_pt2 = _points2.getMat();
+    Mat points1 = _points1.getMat(), points2 = _points2.getMat();
+    CvMat c_pt1 = points1, c_pt2 = points2;
     CvMat c_F, *p_F=0, c_H1 = _Hmat1.getMat(), c_H2 = _Hmat2.getMat();
     if( F.size() == Size(3, 3) )
         p_F = &(c_F = F);
@@ -3498,7 +3506,8 @@ cv::Mat cv::getOptimalNewCameraMatrix( const InputArray& _cameraMatrix,
                                        Size imgSize, double alpha, Size newImgSize,
                                        Rect* validPixROI )
 {
-    CvMat c_cameraMatrix = _cameraMatrix.getMat(), c_distCoeffs = _distCoeffs.getMat();
+    Mat cameraMatrix = _cameraMatrix.getMat(), distCoeffs = _distCoeffs.getMat();
+    CvMat c_cameraMatrix = cameraMatrix, c_distCoeffs = distCoeffs;
     
     Mat newCameraMatrix(3, 3, CV_MAT_TYPE(c_cameraMatrix.type));
     CvMat c_newCameraMatrix = newCameraMatrix;
diff --git a/modules/calib3d/src/fundam.cpp b/modules/calib3d/src/fundam.cpp
index bb8ab92827a74612b2094843c2ab1808285b50bd..7d1ff4724ba57435e9e5e1ab76cc9ef8030e27cf 100644
--- a/modules/calib3d/src/fundam.cpp
+++ b/modules/calib3d/src/fundam.cpp
@@ -1106,12 +1106,12 @@ cv::Mat cv::findFundamentalMat( const InputArray& _points1, const InputArray& _p
 void cv::computeCorrespondEpilines( const InputArray& _points, int whichImage,
                                     const InputArray& _Fmat, OutputArray _lines )
 {
-    Mat points = _points.getMat();
+    Mat points = _points.getMat(), F = _Fmat.getMat();
     int npoints = points.checkVector(2);
     CV_Assert( npoints >= 0 && (points.depth() == CV_32F || points.depth() == CV_32S));
     
     _lines.create(npoints, 1, CV_32FC3, -1, true);
-    CvMat c_points = points, c_lines = _lines.getMat(), c_F = _Fmat.getMat();
+    CvMat c_points = points, c_lines = _lines.getMat(), c_F = F;
     cvComputeCorrespondEpilines(&c_points, whichImage, &c_F, &c_lines);
 }
 
diff --git a/modules/calib3d/src/solvepnp.cpp b/modules/calib3d/src/solvepnp.cpp
index b0ef1ee46a0d70ff049245346b32e88824c75cc9..a17a6c1578ef45e50b895fd24eac64dc8e507ccf 100644
--- a/modules/calib3d/src/solvepnp.cpp
+++ b/modules/calib3d/src/solvepnp.cpp
@@ -53,8 +53,9 @@ void cv::solvePnP( const InputArray& _opoints, const InputArray& _ipoints,
     
     _rvec.create(3, 1, CV_64F);
     _tvec.create(3, 1, CV_64F);
+    Mat cameraMatrix = _cameraMatrix.getMat(), distCoeffs = _distCoeffs.getMat();
     CvMat c_objectPoints = opoints, c_imagePoints = ipoints;
-    CvMat c_cameraMatrix = _cameraMatrix.getMat(), c_distCoeffs = _distCoeffs.getMat();
+    CvMat c_cameraMatrix = cameraMatrix, c_distCoeffs = distCoeffs;
     CvMat c_rvec = _rvec.getMat(), c_tvec = _tvec.getMat();
     cvFindExtrinsicCameraParams2(&c_objectPoints, &c_imagePoints, &c_cameraMatrix,
                                  c_distCoeffs.rows*c_distCoeffs.cols ? &c_distCoeffs : 0,
diff --git a/modules/highgui/src/window.cpp b/modules/highgui/src/window.cpp
index 0fbca111c04a7286b507835dccf7850285195676..729c83ca97593e1d66347dbc41f2c43a008d005c 100644
--- a/modules/highgui/src/window.cpp
+++ b/modules/highgui/src/window.cpp
@@ -146,9 +146,10 @@ double cv::getWindowProperty(const string& winname, int prop_id)
 	return  cvGetWindowProperty(winname.c_str(),prop_id);
 }
 
-void cv::imshow( const string& winname, const InputArray& img )
+void cv::imshow( const string& winname, const InputArray& _img )
 {
-    CvMat c_img = img.getMat();
+    Mat img = _img.getMat();
+    CvMat c_img = img;
     cvShowImage( winname.c_str(), &c_img );
 }
 
diff --git a/modules/imgproc/src/cornersubpix.cpp b/modules/imgproc/src/cornersubpix.cpp
index 6d3260824431b894b829908fe77267c3a905a8a2..22139a42208b851da0d4312e5d5676889c6a325a 100644
--- a/modules/imgproc/src/cornersubpix.cpp
+++ b/modules/imgproc/src/cornersubpix.cpp
@@ -261,7 +261,8 @@ void cv::cornerSubPix( const InputArray& _image, InputOutputArray _corners,
     Mat corners = _corners.getMat();
     int ncorners = corners.checkVector(2);
     CV_Assert( ncorners >= 0 && corners.depth() == CV_32F );
-    CvMat c_image = _image.getMat();
+    Mat image = _image.getMat();
+    CvMat c_image = image;
     
     cvFindCornerSubPix( &c_image, (CvPoint2D32f*)corners.data, ncorners,
                         winSize, zeroZone, criteria );
diff --git a/modules/imgproc/src/hough.cpp b/modules/imgproc/src/hough.cpp
index b1a96715e8e9203586a7347ffa1f7976bfedb521..dadd5d100ee6ef12e733be39d1dc7590c9199ccf 100644
--- a/modules/imgproc/src/hough.cpp
+++ b/modules/imgproc/src/hough.cpp
@@ -1109,7 +1109,8 @@ void cv::HoughLines( const InputArray& _image, OutputArray _lines,
                      double srn, double stn )
 {
     Ptr<CvMemStorage> storage = cvCreateMemStorage(STORAGE_SIZE);
-    CvMat c_image = _image.getMat();
+    Mat image = _image.getMat();
+    CvMat c_image = image;
     CvSeq* seq = cvHoughLines2( &c_image, storage, srn == 0 && stn == 0 ?
                     CV_HOUGH_STANDARD : CV_HOUGH_MULTI_SCALE,
                     rho, theta, threshold, srn, stn );
@@ -1121,7 +1122,8 @@ void cv::HoughLinesP( const InputArray& _image, OutputArray _lines,
                       double minLineLength, double maxGap )
 {
     Ptr<CvMemStorage> storage = cvCreateMemStorage(STORAGE_SIZE);
-    CvMat c_image = _image.getMat();
+    Mat image = _image.getMat();
+    CvMat c_image = image;
     CvSeq* seq = cvHoughLines2( &c_image, storage, CV_HOUGH_PROBABILISTIC,
                     rho, theta, threshold, minLineLength, maxGap );
     seqToMat(seq, _lines);
@@ -1133,7 +1135,8 @@ void cv::HoughCircles( const InputArray& _image, OutputArray _circles,
                        int minRadius, int maxRadius )
 {
     Ptr<CvMemStorage> storage = cvCreateMemStorage(STORAGE_SIZE);
-    CvMat c_image = _image.getMat();
+    Mat image = _image.getMat();
+    CvMat c_image = image;
     CvSeq* seq = cvHoughCircles( &c_image, storage, method,
                     dp, min_dist, param1, param2, minRadius, maxRadius );
     seqToMat(seq, _circles);
diff --git a/modules/imgproc/src/inpaint.cpp b/modules/imgproc/src/inpaint.cpp
index 0fb66c257c62ab3a4726689ed445054b6dc65d90..06d87495aea586863af28c8dd0d1d46b2df302dd 100644
--- a/modules/imgproc/src/inpaint.cpp
+++ b/modules/imgproc/src/inpaint.cpp
@@ -810,8 +810,8 @@ cvInpaint( const CvArr* _input_img, const CvArr* _inpaint_mask, CvArr* _output_i
 void cv::inpaint( const InputArray& _src, const InputArray& _mask, OutputArray _dst,
                   double inpaintRange, int flags )
 {
-    Mat src = _src.getMat();
+    Mat src = _src.getMat(), mask = _mask.getMat();
     _dst.create( src.size(), src.type() );
-    CvMat c_src = src, c_mask = _mask.getMat(), c_dst = _dst.getMat();
+    CvMat c_src = src, c_mask = mask, c_dst = _dst.getMat();
     cvInpaint( &c_src, &c_mask, &c_dst, inpaintRange, flags );
 }
diff --git a/modules/imgproc/src/moments.cpp b/modules/imgproc/src/moments.cpp
index 3e6b4d35c25946f3eb159b61a03972f2bc03e81f..f517412c147466b0f066fd627be9214df4d38a70 100644
--- a/modules/imgproc/src/moments.cpp
+++ b/modules/imgproc/src/moments.cpp
@@ -607,7 +607,8 @@ Moments::operator CvMoments() const
 cv::Moments cv::moments( const InputArray& _array, bool binaryImage )
 {
     CvMoments om;
-    CvMat c_array = _array.getMat();
+    Mat arr = _array.getMat();
+    CvMat c_array = arr;
     cvMoments(&c_array, &om, binaryImage);
     return om;
 }
diff --git a/modules/imgproc/src/segmentation.cpp b/modules/imgproc/src/segmentation.cpp
index f7bf82272ae593121cbe316c746a3c1d2d710c6d..2c4897261467ec480e71a87dd08485f5eb0c7b3b 100644
--- a/modules/imgproc/src/segmentation.cpp
+++ b/modules/imgproc/src/segmentation.cpp
@@ -303,9 +303,10 @@ cvWatershed( const CvArr* srcarr, CvArr* dstarr )
 }
 
 
-void cv::watershed( const InputArray& src, InputOutputArray markers )
+void cv::watershed( const InputArray& _src, InputOutputArray markers )
 {
-    CvMat c_src = src.getMat(), c_markers = markers.getMat();
+    Mat src = _src.getMat();
+    CvMat c_src = _src.getMat(), c_markers = markers.getMat();
     cvWatershed( &c_src, &c_markers );
 }
 
diff --git a/modules/video/src/camshift.cpp b/modules/video/src/camshift.cpp
index 0472ad87d223fc5def5bbd60f42af2f32bbf426c..f8a6faee7ba5735e305ba5ee98ebe40bf91dbf96 100644
--- a/modules/video/src/camshift.cpp
+++ b/modules/video/src/camshift.cpp
@@ -291,11 +291,12 @@ cvCamShift( const void* imgProb, CvRect windowIn,
 
 
 cv::RotatedRect cv::CamShift( const InputArray& _probImage, Rect& window,
-                      TermCriteria criteria )
+                              TermCriteria criteria )
 {
     CvConnectedComp comp;
     CvBox2D box;
-    CvMat c_probImage = _probImage.getMat();
+    Mat probImage = _probImage.getMat();
+    CvMat c_probImage = probImage;
     cvCamShift(&c_probImage, window, (CvTermCriteria)criteria, &comp, &box);
     window = comp.rect;
     return RotatedRect(Point2f(box.center), Size2f(box.size), box.angle);
@@ -304,7 +305,8 @@ cv::RotatedRect cv::CamShift( const InputArray& _probImage, Rect& window,
 int cv::meanShift( const InputArray& _probImage, Rect& window, TermCriteria criteria )
 {
     CvConnectedComp comp;
-    CvMat c_probImage = _probImage.getMat();
+    Mat probImage = _probImage.getMat();
+    CvMat c_probImage = probImage;
     int iters = cvMeanShift(&c_probImage, window, (CvTermCriteria)criteria, &comp );
     window = comp.rect;
     return iters;
diff --git a/modules/video/src/lkpyramid.cpp b/modules/video/src/lkpyramid.cpp
index bc3f9935840b478bfb96bd026162d7104c531420..3d5d9a44385c7fafa483b45e14962fb55c59b470 100644
--- a/modules/video/src/lkpyramid.cpp
+++ b/modules/video/src/lkpyramid.cpp
@@ -1865,12 +1865,12 @@ cvEstimateRigidTransform( const CvArr* matA, const CvArr* matB, CvMat* matM, int
     return 1;
 }
 
-cv::Mat cv::estimateRigidTransform( const InputArray& A,
-                                    const InputArray& B,
+cv::Mat cv::estimateRigidTransform( const InputArray& src1,
+                                    const InputArray& src2,
                                     bool fullAffine )
 {
-    Mat M(2, 3, CV_64F);
-    CvMat matA = A.getMat(), matB = B.getMat(), matM = M;
+    Mat M(2, 3, CV_64F), A = src1.getMat(), B = src2.getMat();
+    CvMat matA = A, matB = B, matM = M;
     cvEstimateRigidTransform(&matA, &matB, &matM, fullAffine);
     return M;
 }
diff --git a/modules/video/src/motempl.cpp b/modules/video/src/motempl.cpp
index 44eaa9dc4ad29e62e206f572901d900a21d54290..78c0c71bd74ad99d1e03c25e1de3cc64a495bdfe 100644
--- a/modules/video/src/motempl.cpp
+++ b/modules/video/src/motempl.cpp
@@ -445,7 +445,8 @@ cvSegmentMotion( const CvArr* mhiimg, CvArr* segmask, CvMemStorage* storage,
 void cv::updateMotionHistory( const InputArray& _silhouette, InputOutputArray _mhi,
                               double timestamp, double duration )
 {
-    CvMat c_silhouette = _silhouette.getMat(), c_mhi = _mhi.getMat();
+    Mat silhouette = _silhouette.getMat();
+    CvMat c_silhouette = silhouette, c_mhi = _mhi.getMat();
     cvUpdateMotionHistory( &c_silhouette, &c_mhi, timestamp, duration );
 }
 
@@ -465,7 +466,8 @@ double cv::calcGlobalOrientation( const InputArray& _orientation, const InputArr
                                   const InputArray& _mhi, double timestamp,
                                   double duration )
 {
-    CvMat c_orientation = _orientation.getMat(), c_mask = _mask.getMat(), c_mhi = _mhi.getMat();
+    Mat orientation = _orientation.getMat(), mask = _mask.getMat(), mhi = _mhi.getMat();
+    CvMat c_orientation = orientation, c_mask = mask, c_mhi = mhi;
     return cvCalcGlobalOrientation(&c_orientation, &c_mask, &c_mhi, timestamp, duration);
 }