diff --git a/modules/cnn_3dobj/README.md b/modules/cnn_3dobj/README.md
index 5872f49f9..88e46673c 100755
--- a/modules/cnn_3dobj/README.md
+++ b/modules/cnn_3dobj/README.md
@@ -30,7 +30,7 @@ $ sudo make install
 $ cd <opencv_source_directory>
 $ mkdir build
 $ cd build
-$ cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D BUILD_NEW_PYTHON_SUPPORT=OFF -D WITH_V4L=ON -D WITH_QT=OFF -D WITH_OPENGL=ON -D WITH_VTK=ON -D INSTALL_TESTS=ON -D OPENCV_EXTRA_MODULES_PATH=<opencv_contrib>/modules ..
+$ cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D WITH_TBB=ON -D WITH_V4L=ON -D WITH_QT=OFF -D WITH_OPENGL=ON -D WITH_VTK=ON -D INSTALL_TESTS=ON -D OPENCV_EXTRA_MODULES_PATH=../../opencv_contrib/modules ..
 $ make -j4
 $ sudo make install
 ```
diff --git a/modules/cnn_3dobj/samples/CMakeLists.txt b/modules/cnn_3dobj/samples/CMakeLists.txt
index 5bbba8c96..e283f8ef3 100755
--- a/modules/cnn_3dobj/samples/CMakeLists.txt
+++ b/modules/cnn_3dobj/samples/CMakeLists.txt
@@ -6,16 +6,16 @@ find_package(OpenCV REQUIRED)
 set(SOURCES_generator demo_sphereview_data.cpp)
 include_directories(${OpenCV_INCLUDE_DIRS})
 add_executable(sphereview_test ${SOURCES_generator})
-target_link_libraries(sphereview_test ${OpenCV_LIBS})
+target_link_libraries(sphereview_test opencv_core opencv_imgproc opencv_highgui opencv_cnn_3dobj opencv_xfeatures2d)
 
 set(SOURCES_classifier demo_classify.cpp)
 add_executable(classify_test ${SOURCES_classifier})
-target_link_libraries(classify_test ${OpenCV_LIBS})
+target_link_libraries(classify_test opencv_core opencv_imgproc opencv_highgui opencv_cnn_3dobj opencv_xfeatures2d)
 
 set(SOURCES_modelanalysis demo_model_analysis.cpp)
 add_executable(model_test ${SOURCES_modelanalysis})
-target_link_libraries(model_test ${OpenCV_LIBS})
+target_link_libraries(model_test opencv_core opencv_imgproc opencv_highgui opencv_cnn_3dobj opencv_xfeatures2d)
 
 set(SOURCES_video demo_video.cpp)
 add_executable(video_test ${SOURCES_video})
-target_link_libraries(video_test ${OpenCV_LIBS})
+target_link_libraries(video_test opencv_core opencv_imgproc opencv_highgui opencv_cnn_3dobj opencv_xfeatures2d)
diff --git a/modules/cnn_3dobj/samples/demo_classify.cpp b/modules/cnn_3dobj/samples/demo_classify.cpp
index e5999c30c..25dbb0ee5 100755
--- a/modules/cnn_3dobj/samples/demo_classify.cpp
+++ b/modules/cnn_3dobj/samples/demo_classify.cpp
@@ -37,7 +37,6 @@
  * @brief Feature extraction and classification.
  * @author Yida Wang
  */
-#define HAVE_CAFFE
 #include <opencv2/cnn_3dobj.hpp>
 #include <opencv2/features2d/features2d.hpp>
 #include <iomanip>
diff --git a/modules/cnn_3dobj/samples/demo_model_analysis.cpp b/modules/cnn_3dobj/samples/demo_model_analysis.cpp
index 140a24bff..b6662af8b 100755
--- a/modules/cnn_3dobj/samples/demo_model_analysis.cpp
+++ b/modules/cnn_3dobj/samples/demo_model_analysis.cpp
@@ -37,7 +37,6 @@
  * @brief Generating training data for CNN with triplet loss.
  * @author Yida Wang
  */
-#define HAVE_CAFFE
 #include <iostream>
 #include "opencv2/imgproc.hpp"
 #include "opencv2/cnn_3dobj.hpp"
diff --git a/modules/cnn_3dobj/samples/demo_sphereview_data.cpp b/modules/cnn_3dobj/samples/demo_sphereview_data.cpp
index bdd2fdb0d..c1f8d4297 100755
--- a/modules/cnn_3dobj/samples/demo_sphereview_data.cpp
+++ b/modules/cnn_3dobj/samples/demo_sphereview_data.cpp
@@ -37,7 +37,6 @@
  * @brief Generating training data for CNN with triplet loss.
  * @author Yida Wang
  */
-#define HAVE_CAFFE
 #include <opencv2/cnn_3dobj.hpp>
 #include <opencv2/viz/vizcore.hpp>
 #include <iostream>
diff --git a/modules/cnn_3dobj/samples/demo_video.cpp b/modules/cnn_3dobj/samples/demo_video.cpp
index b4cbd7cfa..91e2c7b0c 100755
--- a/modules/cnn_3dobj/samples/demo_video.cpp
+++ b/modules/cnn_3dobj/samples/demo_video.cpp
@@ -2,7 +2,6 @@
 #include <opencv2/calib3d/calib3d.hpp>
 #include <iostream>
 #include <fstream>
-#define HAVE_CAFFE
 #include <opencv2/cnn_3dobj.hpp>
 #include <opencv2/features2d/features2d.hpp>
 #include <iomanip>