diff --git a/modules/calib3d/include/opencv2/calib3d.hpp b/modules/calib3d/include/opencv2/calib3d.hpp
index 867bbc723c..b1d819f022 100644
--- a/modules/calib3d/include/opencv2/calib3d.hpp
+++ b/modules/calib3d/include/opencv2/calib3d.hpp
@@ -515,9 +515,9 @@ CV_EXPORTS_W void projectPoints( InputArray objectPoints,
 
 /** @brief Finds an object pose from 3D-2D point correspondences.
 
-@param objectPoints Array of object points in the object coordinate space, 3xN/Nx3 1-channel or
+@param objectPoints Array of object points in the object coordinate space, Nx3 1-channel or
 1xN/Nx1 3-channel, where N is the number of points. vector\<Point3f\> can be also passed here.
-@param imagePoints Array of corresponding image points, 2xN/Nx2 1-channel or 1xN/Nx1 2-channel,
+@param imagePoints Array of corresponding image points, Nx2 1-channel or 1xN/Nx1 2-channel,
 where N is the number of points. vector\<Point2f\> can be also passed here.
 @param cameraMatrix Input camera matrix \f$A = \vecthreethree{fx}{0}{cx}{0}{fy}{cy}{0}{0}{1}\f$ .
 @param distCoeffs Input vector of distortion coefficients
@@ -572,9 +572,9 @@ CV_EXPORTS_W bool solvePnP( InputArray objectPoints, InputArray imagePoints,
 
 /** @brief Finds an object pose from 3D-2D point correspondences using the RANSAC scheme.
 
-@param objectPoints Array of object points in the object coordinate space, 3xN/Nx3 1-channel or
+@param objectPoints Array of object points in the object coordinate space, Nx3 1-channel or
 1xN/Nx1 3-channel, where N is the number of points. vector\<Point3f\> can be also passed here.
-@param imagePoints Array of corresponding image points, 2xN/Nx2 1-channel or 1xN/Nx1 2-channel,
+@param imagePoints Array of corresponding image points, Nx2 1-channel or 1xN/Nx1 2-channel,
 where N is the number of points. vector\<Point2f\> can be also passed here.
 @param cameraMatrix Input camera matrix \f$A = \vecthreethree{fx}{0}{cx}{0}{fy}{cy}{0}{0}{1}\f$ .
 @param distCoeffs Input vector of distortion coefficients
diff --git a/modules/calib3d/src/ptsetreg.cpp b/modules/calib3d/src/ptsetreg.cpp
index 75a73a5cb7..e83e19a203 100644
--- a/modules/calib3d/src/ptsetreg.cpp
+++ b/modules/calib3d/src/ptsetreg.cpp
@@ -109,9 +109,9 @@ public:
         cv::AutoBuffer<int> _idx(modelPoints);
         int* idx = _idx;
         int i = 0, j, k, iters = 0;
-        int esz1 = (int)m1.elemSize(), esz2 = (int)m2.elemSize();
         int d1 = m1.channels() > 1 ? m1.channels() : m1.cols;
         int d2 = m2.channels() > 1 ? m2.channels() : m2.cols;
+        int esz1 = (int)m1.elemSize1()*d1, esz2 = (int)m2.elemSize1()*d2;
         int count = m1.checkVector(d1), count2 = m2.checkVector(d2);
         const int *m1ptr = m1.ptr<int>(), *m2ptr = m2.ptr<int>();
 
diff --git a/modules/calib3d/test/test_solvepnp_ransac.cpp b/modules/calib3d/test/test_solvepnp_ransac.cpp
index 579248893a..4efdc79902 100644
--- a/modules/calib3d/test/test_solvepnp_ransac.cpp
+++ b/modules/calib3d/test/test_solvepnp_ransac.cpp
@@ -329,26 +329,26 @@ TEST(Calib3d_SolvePnPRansac, input_type)
     }
     Mat R1, t1, R2, t2, R3, t3, R4, t4;
 
-    ASSERT_TRUE(solvePnPRansac(points3d, points2d, intrinsics, cv::Mat(), R1, t1));
+    EXPECT_TRUE(solvePnPRansac(points3d, points2d, intrinsics, cv::Mat(), R1, t1));
 
     Mat points3dMat(points3d);
     Mat points2dMat(points2d);
-    ASSERT_TRUE(solvePnPRansac(points3dMat, points2dMat, intrinsics, cv::Mat(), R2, t2));
+    EXPECT_TRUE(solvePnPRansac(points3dMat, points2dMat, intrinsics, cv::Mat(), R2, t2));
 
     points3dMat = points3dMat.reshape(3, 1);
     points2dMat = points2dMat.reshape(2, 1);
-    ASSERT_TRUE(solvePnPRansac(points3dMat, points2dMat, intrinsics, cv::Mat(), R3, t3));
+    EXPECT_TRUE(solvePnPRansac(points3dMat, points2dMat, intrinsics, cv::Mat(), R3, t3));
 
     points3dMat = points3dMat.reshape(1, numPoints);
     points2dMat = points2dMat.reshape(1, numPoints);
-    ASSERT_TRUE(solvePnPRansac(points3dMat, points2dMat, intrinsics, cv::Mat(), R4, t4));
-
-    ASSERT_LE(norm(R1, R2, NORM_INF), 1e-6);
-    ASSERT_LE(norm(t1, t2, NORM_INF), 1e-6);
-    ASSERT_LE(norm(R1, R3, NORM_INF), 1e-6);
-    ASSERT_LE(norm(t1, t3, NORM_INF), 1e-6);
-    ASSERT_LE(norm(R1, R4, NORM_INF), 1e-6);
-    ASSERT_LE(norm(t1, t4, NORM_INF), 1e-6);
+    EXPECT_TRUE(solvePnPRansac(points3dMat, points2dMat, intrinsics, cv::Mat(), R4, t4));
+
+    EXPECT_LE(norm(R1, R2, NORM_INF), 1e-6);
+    EXPECT_LE(norm(t1, t2, NORM_INF), 1e-6);
+    EXPECT_LE(norm(R1, R3, NORM_INF), 1e-6);
+    EXPECT_LE(norm(t1, t3, NORM_INF), 1e-6);
+    EXPECT_LE(norm(R1, R4, NORM_INF), 1e-6);
+    EXPECT_LE(norm(t1, t4, NORM_INF), 1e-6);
 }
 
 TEST(Calib3d_SolvePnP, double_support)
@@ -372,8 +372,8 @@ TEST(Calib3d_SolvePnP, double_support)
     solvePnPRansac(points3dF, points2dF, intrinsics, cv::Mat(), RF, tF, true, 100, 8.f, 0.999, inliers, cv::SOLVEPNP_P3P);
     solvePnPRansac(points3d, points2d, intrinsics, cv::Mat(), R, t, true, 100, 8.f, 0.999, inliers, cv::SOLVEPNP_P3P);
 
-    ASSERT_LE(norm(R, Mat_<double>(RF), NORM_INF), 1e-3);
-    ASSERT_LE(norm(t, Mat_<double>(tF), NORM_INF), 1e-3);
+    EXPECT_LE(norm(R, Mat_<double>(RF), NORM_INF), 1e-3);
+    EXPECT_LE(norm(t, Mat_<double>(tF), NORM_INF), 1e-3);
 }
 
 TEST(Calib3d_SolvePnP, translation)
@@ -402,16 +402,16 @@ TEST(Calib3d_SolvePnP, translation)
     tvec = (Mat_<float>(3,1) << 100, 100, 0);
 
     solvePnP(p3d, p2d, cameraIntrinsic, noArray(), rvec, tvec, true);
-    ASSERT_TRUE(checkRange(rvec));
-    ASSERT_TRUE(checkRange(tvec));
+    EXPECT_TRUE(checkRange(rvec));
+    EXPECT_TRUE(checkRange(tvec));
 
     rvec =(Mat_<double>(3,1) << 0, 0, 0);
     tvec = (Mat_<double>(3,1) << 100, 100, 0);
     solvePnP(p3d, p2d, cameraIntrinsic, noArray(), rvec, tvec, true);
-    ASSERT_TRUE(checkRange(rvec));
-    ASSERT_TRUE(checkRange(tvec));
+    EXPECT_TRUE(checkRange(rvec));
+    EXPECT_TRUE(checkRange(tvec));
 
     solvePnP(p3d, p2d, cameraIntrinsic, noArray(), rvec, tvec, false);
-    ASSERT_TRUE(checkRange(rvec));
-    ASSERT_TRUE(checkRange(tvec));
+    EXPECT_TRUE(checkRange(rvec));
+    EXPECT_TRUE(checkRange(tvec));
 }