diff --git a/apps/CMakeLists.txt b/apps/CMakeLists.txt
deleted file mode 100644
index cb397c3f7..000000000
--- a/apps/CMakeLists.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-add_definitions(-D__OPENCV_BUILD=1)
-link_libraries(${OPENCV_LINKER_LIBS})
-
-add_subdirectory(icf)
diff --git a/modules/adas/CMakeLists.txt b/modules/adas/CMakeLists.txt
new file mode 100644
index 000000000..8284dfc57
--- /dev/null
+++ b/modules/adas/CMakeLists.txt
@@ -0,0 +1,4 @@
+set(the_description "Automatic driver assistance algorithms")
+ocv_define_module(adas opencv_xobjdetect)
+
+add_subdirectory(tools)
diff --git a/apps/icf/CMakeLists.txt b/modules/adas/tools/CMakeLists.txt
similarity index 86%
rename from apps/icf/CMakeLists.txt
rename to modules/adas/tools/CMakeLists.txt
index 12c24fbd0..8bf244807 100644
--- a/apps/icf/CMakeLists.txt
+++ b/modules/adas/tools/CMakeLists.txt
@@ -1,7 +1,8 @@
-set(name icf)
+set(name fcw-train)
 set(the_target opencv_${name})
 
-set(OPENCV_${the_target}_DEPS opencv_core opencv_imgproc opencv_highgui)
+set(OPENCV_${the_target}_DEPS opencv_xobjdetect)
+
 ocv_check_dependencies(${OPENCV_${the_target}_DEPS})
 
 if(NOT OCV_DEPENDENCIES_FOUND)
@@ -24,7 +25,7 @@ set_target_properties(${the_target} PROPERTIES
                       ARCHIVE_OUTPUT_DIRECTORY ${LIBRARY_OUTPUT_PATH}
                       RUNTIME_OUTPUT_DIRECTORY ${EXECUTABLE_OUTPUT_PATH}
                       INSTALL_NAME_DIR lib
-                      OUTPUT_NAME "opencv_trainicfcascade")
+                      OUTPUT_NAME ${the_target})
 
 if(ENABLE_SOLUTION_FOLDERS)
   set_target_properties(${the_target} PROPERTIES FOLDER "applications")
diff --git a/apps/icf/main.cpp b/modules/adas/tools/fcw-train.cpp
similarity index 95%
rename from apps/icf/main.cpp
rename to modules/adas/tools/fcw-train.cpp
index 2f23ecd4f..a24771fe8 100644
--- a/apps/icf/main.cpp
+++ b/modules/adas/tools/fcw-train.cpp
@@ -17,11 +17,14 @@ using std::stringstream;
 #include <opencv2/core.hpp>
 using cv::Rect;
 
-#include "icfdetector.hpp"
-#include "waldboost.hpp"
+#include <opencv2/xobjdetect/icfdetector.hpp>
+#include <opencv2/xobjdetect/waldboost.hpp>
 
 using cv::adas::ICFDetectorParams;
 using cv::adas::ICFDetector;
+using cv::adas::WaldBoost;
+using cv::adas::WaldBoostParams;
+using cv::Mat;
 
 static bool read_pos_int(const char *str, int *n)
 {
@@ -171,6 +174,9 @@ int main(int argc, char *argv[])
 
     try
     {
+        WaldBoostParams p;
+        WaldBoost b(p);
+        b.train(Mat(), Mat());
         ICFDetector detector;
         vector<string> filenames;
         vector< vector<Rect> > labelling;
diff --git a/modules/xobjdetect/CMakeLists.txt b/modules/xobjdetect/CMakeLists.txt
new file mode 100644
index 000000000..82488a70e
--- /dev/null
+++ b/modules/xobjdetect/CMakeLists.txt
@@ -0,0 +1,2 @@
+set(the_description "Object detection algorithms")
+ocv_define_module(xobjdetect opencv_core opencv_imgproc opencv_highgui)
diff --git a/modules/xobjdetect/include/opencv2/xobjdetect.hpp b/modules/xobjdetect/include/opencv2/xobjdetect.hpp
new file mode 100644
index 000000000..520f5b375
--- /dev/null
+++ b/modules/xobjdetect/include/opencv2/xobjdetect.hpp
@@ -0,0 +1,9 @@
+#ifndef __OPENCV_XOBJDETECT_XOBJDETECT_HPP__
+#define __OPENCV_XOBJDETECT_XOBJDETECT_HPP__
+
+#include "xobjdetect/stump.hpp"
+#include "xobjdetect/waldboost.hpp"
+#include "xobjdetect/acffeature.hpp"
+#include "xobjdetect/icfdetector.hpp"
+
+#endif /* __OPENCV_XOBJDETECT_XOBJDETECT_HPP__ */
diff --git a/apps/icf/acffeature.hpp b/modules/xobjdetect/include/opencv2/xobjdetect/acffeature.hpp
similarity index 98%
rename from apps/icf/acffeature.hpp
rename to modules/xobjdetect/include/opencv2/xobjdetect/acffeature.hpp
index 82ad9635a..06832d3e3 100644
--- a/apps/icf/acffeature.hpp
+++ b/modules/xobjdetect/include/opencv2/xobjdetect/acffeature.hpp
@@ -59,7 +59,7 @@ namespace adas
 */
 void computeChannels(InputArray image, OutputArrayOfArrays channels);
 
-class ACFFeatureEvaluator
+class CV_EXPORTS ACFFeatureEvaluator
 {
 public:
     /* Construct evaluator, set features to evaluate */
diff --git a/apps/icf/icfdetector.hpp b/modules/xobjdetect/include/opencv2/xobjdetect/icfdetector.hpp
similarity index 97%
rename from apps/icf/icfdetector.hpp
rename to modules/xobjdetect/include/opencv2/xobjdetect/icfdetector.hpp
index 47400d021..e674c7096 100644
--- a/apps/icf/icfdetector.hpp
+++ b/modules/xobjdetect/include/opencv2/xobjdetect/icfdetector.hpp
@@ -52,7 +52,7 @@ namespace cv
 namespace adas
 {
 
-struct ICFDetectorParams
+struct CV_EXPORTS ICFDetectorParams
 {
     int feature_count;
     int weak_count;
@@ -61,7 +61,7 @@ struct ICFDetectorParams
     double overlap;
 };
 
-class ICFDetector
+class CV_EXPORTS ICFDetector
 {
 public:
     /* Train detector
diff --git a/apps/icf/stump.hpp b/modules/xobjdetect/include/opencv2/xobjdetect/stump.hpp
similarity index 98%
rename from apps/icf/stump.hpp
rename to modules/xobjdetect/include/opencv2/xobjdetect/stump.hpp
index 9beed546a..8afa0080f 100644
--- a/apps/icf/stump.hpp
+++ b/modules/xobjdetect/include/opencv2/xobjdetect/stump.hpp
@@ -8,7 +8,7 @@ namespace cv
 namespace adas
 {
 
-class Stump
+class CV_EXPORTS Stump
 {
 public:
 
diff --git a/apps/icf/waldboost.hpp b/modules/xobjdetect/include/opencv2/xobjdetect/waldboost.hpp
similarity index 95%
rename from apps/icf/waldboost.hpp
rename to modules/xobjdetect/include/opencv2/xobjdetect/waldboost.hpp
index 6e2c08db7..de2d06b7b 100644
--- a/apps/icf/waldboost.hpp
+++ b/modules/xobjdetect/include/opencv2/xobjdetect/waldboost.hpp
@@ -44,21 +44,21 @@ the use of this software, even if advised of the possibility of such damage.
 
 #include <opencv2/core.hpp>
 
-#include "acffeature.hpp"
-#include "stump.hpp"
+#include <opencv2/xobjdetect/acffeature.hpp>
+#include <opencv2/xobjdetect/stump.hpp>
 
 namespace cv
 {
 namespace adas
 {
 
-struct WaldBoostParams
+struct CV_EXPORTS WaldBoostParams
 {
     int weak_count;
     float alpha;
 };
 
-class WaldBoost
+class CV_EXPORTS WaldBoost
 {
 public:
     /* Initialize WaldBoost cascade with default of specified parameters */
diff --git a/apps/icf/acffeature.cpp b/modules/xobjdetect/src/acffeature.cpp
similarity index 98%
rename from apps/icf/acffeature.cpp
rename to modules/xobjdetect/src/acffeature.cpp
index 3eb0ba627..1dfbdd197 100644
--- a/apps/icf/acffeature.cpp
+++ b/modules/xobjdetect/src/acffeature.cpp
@@ -1,4 +1,4 @@
-#include "acffeature.hpp"
+#include <opencv2/xobjdetect/acffeature.hpp>
 
 using std::vector;
 
diff --git a/apps/icf/icfdetector.cpp b/modules/xobjdetect/src/icfdetector.cpp
similarity index 88%
rename from apps/icf/icfdetector.cpp
rename to modules/xobjdetect/src/icfdetector.cpp
index 96f19d6f4..8e24a49cc 100644
--- a/apps/icf/icfdetector.cpp
+++ b/modules/xobjdetect/src/icfdetector.cpp
@@ -1,5 +1,5 @@
-#include "icfdetector.hpp"
-#include "waldboost.hpp"
+#include <opencv2/xobjdetect/icfdetector.hpp>
+#include <opencv2/xobjdetect/waldboost.hpp>
 
 #include <iostream>
 
@@ -38,10 +38,10 @@ void ICFDetector::train(const vector<string>& image_filenames,
 
     vector<Mat> samples; /* positive samples + negative samples */
     Mat sample, resized_sample;
-    int pos_count = 0;
+    size_t pos_count = 0;
     for( size_t i = 0; i < image_filenames.size(); ++i, ++pos_count )
     {
-        Mat img = imread(image_filenames[i]);
+        Mat img = imread(String(image_filenames[i].c_str()));
         for( size_t j = 0; j < labelling[i].size(); ++j )
         {
             Rect r = labelling[i][j];
@@ -59,10 +59,10 @@ void ICFDetector::train(const vector<string>& image_filenames,
 
     int neg_count = 0;
     RNG rng;
-    for( size_t i = 0; i < image_filenames.size(); ++i, ++neg_count )
+    for( size_t i = 0; i < image_filenames.size(); ++i )
     {
-        Mat img = imread(image_filenames[i]);
-        for( size_t j = 0; j < pos_count / image_filenames.size() + 1; ++j )
+        Mat img = imread(String(image_filenames[i].c_str()));
+        for( size_t j = 0; j < pos_count / image_filenames.size() + 1; )
         {
             Rect r;
             r.x = rng.uniform(0, img.cols);
@@ -73,9 +73,10 @@ void ICFDetector::train(const vector<string>& image_filenames,
             if( !overlap(r, labelling[i]) )
             {
                 sample = img.colRange(r.x, r.width).rowRange(r.y, r.height);
-                resize(sample, resized_sample);
+                //resize(sample, resized_sample);
                 samples.push_back(resized_sample);
                 ++neg_count;
+                ++j;
             }
         }
     }
diff --git a/apps/icf/stump.cpp b/modules/xobjdetect/src/stump.cpp
similarity index 99%
rename from apps/icf/stump.cpp
rename to modules/xobjdetect/src/stump.cpp
index 0b463e3fc..d7e11e71c 100644
--- a/apps/icf/stump.cpp
+++ b/modules/xobjdetect/src/stump.cpp
@@ -1,4 +1,4 @@
-#include "stump.hpp"
+#include <opencv2/xobjdetect/stump.hpp>
 
 namespace cv
 {
diff --git a/apps/icf/waldboost.cpp b/modules/xobjdetect/src/waldboost.cpp
similarity index 98%
rename from apps/icf/waldboost.cpp
rename to modules/xobjdetect/src/waldboost.cpp
index 4655f39a5..9224cee57 100644
--- a/apps/icf/waldboost.cpp
+++ b/modules/xobjdetect/src/waldboost.cpp
@@ -3,7 +3,7 @@
 #include <algorithm>
 using std::swap;
 
-#include "waldboost.hpp"
+#include <opencv2/xobjdetect/waldboost.hpp>
 
 using std::vector;