Keyframe Selection: Rework and add new selection methods

src/CMakeLists.txt

@@ -475,7 +475,7 @@ set(ALICEVISION_HAVE_OPENCV_CONTRIB 0)
 
 if(ALICEVISION_BUILD_SFM)
   if(NOT ALICEVISION_USE_OPENCV STREQUAL "OFF")
-    find_package(OpenCV COMPONENTS core imgproc video imgcodecs videoio features2d photo)
+    find_package(OpenCV COMPONENTS core imgproc video imgcodecs videoio features2d optflow photo)
 
     if(OpenCV_FOUND)
       # We do not set the minimal version directly in find_package

src/aliceVision/CMakeLists.txt

@@ -18,7 +18,6 @@ if(ALICEVISION_BUILD_SFM)
   add_subdirectory(graph)
   add_subdirectory(gpu)
   add_subdirectory(imageMatching)
-  add_subdirectory(keyframe)
   add_subdirectory(linearProgramming)
   add_subdirectory(localization)
   add_subdirectory(matching)
@@ -35,6 +34,7 @@ if(ALICEVISION_BUILD_SFM)
   add_subdirectory(calibration)
   if(ALICEVISION_HAVE_OPENCV)
     add_subdirectory(imageMasking)
+    add_subdirectory(keyframe)
   endif()
 endif()
 

src/aliceVision/dataio/FeedProvider.cpp

@@ -22,32 +22,39 @@
 namespace aliceVision{
 namespace dataio{
 
-FeedProvider::FeedProvider(const std::string &feedPath, const std::string &calibPath) 
+FeedProvider::FeedProvider(const std::string &feedPath, const std::string &calibPath)
 : _isVideo(false), _isLiveFeed(false)
 {
   namespace bf = boost::filesystem;
   if(feedPath.empty())
   {
     throw std::invalid_argument("Empty filepath.");
   }
-  if(bf::is_regular_file(bf::path(feedPath))) 
+  if(bf::is_regular_file(bf::path(feedPath)))
   {
     // Image or video file
     const std::string extension = bf::path(feedPath).extension().string();
     if(ImageFeed::isSupported(extension))
     {
       _feeder.reset(new ImageFeed(feedPath, calibPath));
     }
-    else 
+    else
     {
+      if(VideoFeed::isSupported(extension))
+      {
 #if ALICEVISION_IS_DEFINED(ALICEVISION_HAVE_OPENCV)
-      // let's try it with a video
-      _feeder.reset(new VideoFeed(feedPath, calibPath));
-      _isVideo = true;
+        // let's try it with a video
+        _feeder.reset(new VideoFeed(feedPath, calibPath));
+        _isVideo = true;
 #else
-      throw std::invalid_argument("Unsupported mode! If you intended to use a video"
+        throw std::invalid_argument("Unsupported mode! If you intended to use a video"
                                   " please add OpenCV support");
 #endif
+      }
+      else
+      {
+        throw std::invalid_argument("Unsupported file format: " + feedPath);
+      }
     }
   }
   // parent_path() returns "/foo/bar/" when input path equals to "/foo/bar/"
@@ -96,12 +103,12 @@ bool FeedProvider::readImage(image::Image<unsigned char> &imageGray,
 {
   return(_feeder->readImage(imageGray, camIntrinsics, mediaPath, hasIntrinsics));
 }
-  
+
 std::size_t FeedProvider::nbFrames() const
 {
   if(_isLiveFeed)
     return std::numeric_limits<std::size_t>::infinity();
-  
+
   return _feeder->nbFrames();
 }
 
@@ -122,5 +129,5 @@ bool FeedProvider::isInit() const
 
 FeedProvider::~FeedProvider( ) { }
 
-}//namespace dataio 
+}//namespace dataio
 }//namespace aliceVision

src/aliceVision/dataio/FeedProvider.hpp

@@ -17,9 +17,9 @@ namespace dataio{
 class FeedProvider
 {
 public:
-  
+
   FeedProvider(const std::string &feedPath, const std::string &calibPath = "");
-  
+
   /**
    * @brief Provide a new RGB image from the feed.
    * 
@@ -51,7 +51,7 @@ class FeedProvider
         camera::PinholeRadialK3 &camIntrinsics,
         std::string &mediaPath,
         bool &hasIntrinsics);
-  
+
   /**
    * @brief Provide a new grayscale image from the feed.
    * 
@@ -101,7 +101,7 @@ class FeedProvider
    * @return True if the feed is a video.
    */    
   bool isVideo() const {return _isVideo; }
-  
+
   /**
    * @brief Return true if the feed is a live stream (e.g. a  webcam).
    * 
@@ -110,14 +110,14 @@ class FeedProvider
   bool isLiveFeed() const {return _isLiveFeed; }
 
   virtual ~FeedProvider();
-    
+
 private:
   std::unique_ptr<IFeed> _feeder;
   bool _isVideo;
   bool _isLiveFeed;
 
 };
 
-}//namespace dataio 
+}//namespace dataio
 }//namespace aliceVision
 

src/aliceVision/dataio/IFeed.cpp

@@ -35,19 +35,19 @@ void readCalibrationFromFile(const std::string &filename, camera::PinholeRadialK
   int height = 0;
   const size_t numParam = 6;
   std::vector<double> params(numParam, 0);
-  
+
   fs >> width;
   fs >> height;
   for(size_t i = 0; i < numParam; ++i)
   {
     fs >> params[i];
   }
-  camIntrinsics = camera::PinholeRadialK3(width, height, 
+  camIntrinsics = camera::PinholeRadialK3(width, height,
                                   params[0], params[1], params[2],
                                   params[3], params[4], params[5]);
-  
+
   fs.close();
 }
 
-}//namespace dataio 
+}//namespace dataio
 }//namespace aliceVision

src/aliceVision/dataio/IFeed.hpp

@@ -23,7 +23,7 @@ class IFeed
    * @return True if the feed is correctly initialized.
    */
   virtual bool isInit() const = 0;
-  
+
     /**
    * @brief Provide a new RGB image from the feed
    * @param[out] imageRGB The new RGB image from the feed.
@@ -51,7 +51,7 @@ class IFeed
                     camera::PinholeRadialK3 &camIntrinsics,
                     std::string &mediaPath,
                     bool &hasIntrinsics) = 0;
-  
+
   /**
    * @brief Provide a new grayscale image from the feed
    * @param[out] imageGray The new image from the feed.
@@ -62,16 +62,16 @@ class IFeed
    * @return True if there is a new image, false otherwise.
    */
   virtual bool readImage(image::Image<unsigned char> &imageGray,
-                    camera::PinholeRadialK3 &camIntrinsics, 
+                    camera::PinholeRadialK3 &camIntrinsics,
                     std::string &mediaPath,
-                    bool &hasIntrinsics) = 0;  
+                    bool &hasIntrinsics) = 0;
 
   virtual std::size_t nbFrames() const = 0;
-  
+
   virtual bool goToFrame(const unsigned int frame) = 0;
-  
+
   virtual bool goToNextFrame() = 0;
-  
+
   virtual ~IFeed( ) {}
 
 };
@@ -84,6 +84,6 @@ class IFeed
  */
 void readCalibrationFromFile(const std::string &filename, camera::PinholeRadialK3 &camIntrinsics);
 
-}//namespace dataio 
+}//namespace dataio
 }//namespace aliceVision