diff --git a/doc/gpu_initialization.tex b/doc/gpu_initialization.tex
index cf1d3085e8..e8a6ffff93 100644
--- a/doc/gpu_initialization.tex
+++ b/doc/gpu_initialization.tex
@@ -22,11 +22,11 @@ Returns the current device index, which was set by {gpu::getDevice} or initializ
 \cvdefCpp{int getDevice();}
 
 
-\cvclass{gpu::GpuFeature}\label{cpp.gpu.GpuFeature}
+\cvclass{gpu::FeatureSet}\label{cpp.gpu.FeatureSet}
 GPU compute features.
 
 \begin{lstlisting}
-enum GpuFeature
+enum FeatureSet
 {
     FEATURE_SET_COMPUTE_10, FEATURE_SET_COMPUTE_11,
     FEATURE_SET_COMPUTE_12, FEATURE_SET_COMPUTE_13,
@@ -56,7 +56,7 @@ public:
     size_t freeMemory() const;
     size_t totalMemory() const;
 
-    bool supports(GpuFeature feature) const;
+    bool supports(FeatureSet feature_set) const;
     bool isCompatible() const;
 };
 \end{lstlisting}
@@ -111,9 +111,9 @@ Returns the amount of total memory in bytes.
 \cvCppFunc{gpu::DeviceInfo::supports}
 Returns true if the device has the given GPU feature, otherwise false.
 
-\cvdefCpp{bool DeviceInfo::supports(GpuFeature feature);}
+\cvdefCpp{bool DeviceInfo::supports(FeatureSet feature\_set);}
 \begin{description}
-\cvarg{feature}{Feature to be checked. See \hyperref[cpp.gpu.GpuFeature]{cv::gpu::GpuFeature}.}
+\cvarg{feature}{Feature to be checked. See \hyperref[cpp.gpu.FeatureSet]{cv::gpu::FeatureSet}.}
 \end{description}
 
 
@@ -129,9 +129,9 @@ This class provides functionality (as set of static methods) for checking which
 \bigskip
 
 The following method checks whether the module was built with the support of the given feature:
-\cvdefCpp{static bool builtWith(GpuFeature feature);}
+\cvdefCpp{static bool builtWith(FeatureSet feature\_set);}
 \begin{description}
-\cvarg{feature}{Feature to be checked. See \hyperref[cpp.gpu.GpuFeature]{cv::gpu::GpuFeature}.}
+\cvarg{feature}{Feature to be checked. See \hyperref[cpp.gpu.FeatureSet]{cv::gpu::FeatureSet}.}
 \end{description}
 
 There are a set of methods for checking whether the module contains intermediate (PTX) or binary GPU code for the given architecture(s):
diff --git a/doc/opencv.pdf b/doc/opencv.pdf
index c271841663..847080308b 100644
Binary files a/doc/opencv.pdf and b/doc/opencv.pdf differ
diff --git a/modules/gpu/include/opencv2/gpu/gpu.hpp b/modules/gpu/include/opencv2/gpu/gpu.hpp
index 029c029cdf..a401885272 100644
--- a/modules/gpu/include/opencv2/gpu/gpu.hpp
+++ b/modules/gpu/include/opencv2/gpu/gpu.hpp
@@ -64,7 +64,7 @@ namespace cv
         CV_EXPORTS void setDevice(int device);
         CV_EXPORTS int getDevice();
 
-        enum GpuFeature
+        enum FeatureSet
         {
             FEATURE_SET_COMPUTE_10 = 10,
             FEATURE_SET_COMPUTE_11 = 11,
@@ -81,7 +81,7 @@ namespace cv
         class CV_EXPORTS TargetArchs
         {
         public:
-            static bool builtWith(GpuFeature feature);
+            static bool builtWith(FeatureSet feature_set);
             static bool has(int major, int minor);
             static bool hasPtx(int major, int minor);
             static bool hasBin(int major, int minor);
@@ -115,7 +115,7 @@ namespace cv
             size_t totalMemory() const;
 
             // Checks whether device supports the given feature
-            bool supports(GpuFeature feature) const;
+            bool supports(FeatureSet feature_set) const;
 
             // Checks whether the GPU module can be run on the given device
             bool isCompatible() const;
diff --git a/modules/gpu/src/initialization.cpp b/modules/gpu/src/initialization.cpp
index 860399ea23..dd56333e8f 100644
--- a/modules/gpu/src/initialization.cpp
+++ b/modules/gpu/src/initialization.cpp
@@ -48,6 +48,9 @@ using namespace cv::gpu;
 
 namespace 
 {
+    // Compares value to set using the given comparator. Returns true if
+    // there is at least one element x in the set satisfying to: x cmp value
+    // predicate.
     template <typename Comparer>
     bool compareToSet(const std::string& set_as_str, int value, Comparer cmp)
     {
@@ -69,9 +72,9 @@ namespace
 }
 
 
-CV_EXPORTS bool cv::gpu::TargetArchs::builtWith(cv::gpu::GpuFeature feature)
+CV_EXPORTS bool cv::gpu::TargetArchs::builtWith(cv::gpu::FeatureSet feature_set)
 {
-    return ::compareToSet(CUDA_ARCH_FEATURES, feature, std::greater_equal<int>());
+    return ::compareToSet(CUDA_ARCH_FEATURES, feature_set, std::greater_equal<int>());
 }
 
 
@@ -128,7 +131,7 @@ CV_EXPORTS void cv::gpu::setDevice(int) { throw_nogpu(); }
 CV_EXPORTS int cv::gpu::getDevice() { throw_nogpu(); return 0; } 
 size_t cv::gpu::DeviceInfo::freeMemory() const { throw_nogpu(); return 0; }
 size_t cv::gpu::DeviceInfo::totalMemory() const { throw_nogpu(); return 0; }
-bool cv::gpu::DeviceInfo::supports(cv::gpu::GpuFeature) const { throw_nogpu(); return false; }
+bool cv::gpu::DeviceInfo::supports(cv::gpu::FeatureSet) const { throw_nogpu(); return false; }
 bool cv::gpu::DeviceInfo::isCompatible() const { throw_nogpu(); return false; }
 void cv::gpu::DeviceInfo::query() { throw_nogpu(); }
 void cv::gpu::DeviceInfo::queryMemory(size_t&, size_t&) const { throw_nogpu(); }
@@ -173,10 +176,10 @@ size_t cv::gpu::DeviceInfo::totalMemory() const
 }
 
 
-bool cv::gpu::DeviceInfo::supports(cv::gpu::GpuFeature feature) const
+bool cv::gpu::DeviceInfo::supports(cv::gpu::FeatureSet feature_set) const
 {
     int version = majorVersion() * 10 + minorVersion();
-    return version >= feature;
+    return version >= feature_set;
 }