Working towards coping without AU and eye models. Fixes to the visualizer.

.gitignore

@@ -95,3 +95,5 @@ lib/3rdParty/CameraEnumerator/Release/
 lib/local/Utilities/Release/
 exe/FaceLandmarkVidMulti/processed/
 matlab_runners/Demos/processed/multi_face_aligned/
+exe/releases/OpenFace_0.4.1_win_x64_landmarks/
+exe/releases/OpenFace_*

exe/FaceLandmarkImg/FaceLandmarkImg.cpp

@@ -127,18 +127,30 @@ int main (int argc, char **argv)
 
  	captured_image = image_reader.GetNextImage();
 
+	if (!face_model.eye_model)
+	{
+		cout << "WARNING: no eye model found" << endl;
+	}
+
+	if (face_analyser.GetAUClassNames().size() == 0 && face_analyser.GetAUClassNames().size() == 0)
+	{
+		cout << "WARNING: no Action Unit models found" << endl;
+	}
+
 	cout << "Starting tracking" << endl;
 	while (!captured_image.empty())
 	{
 
 		Utilities::RecorderOpenFaceParameters recording_params(arguments, false, false,
 			image_reader.fx, image_reader.fy, image_reader.cx, image_reader.cy);
+		if (!face_model.eye_model)
+		{
+			recording_params.setOutputGaze(false);
+		}
 		Utilities::RecorderOpenFace open_face_rec(image_reader.name, recording_params, arguments);
 
 		visualizer.SetImage(captured_image, image_reader.fx, image_reader.fy, image_reader.cx, image_reader.cy);
 
-		if (recording_params.outputGaze() && !face_model.eye_model)
-			cout << "WARNING: no eye model defined, but outputting gaze" << endl;
 
 		// Making sure the image is in uchar grayscale
 		cv::Mat_<uchar> grayscale_image = image_reader.GetGrayFrame();

exe/FaceLandmarkVid/FaceLandmarkVid.cpp

@@ -104,6 +104,11 @@ int main (int argc, char **argv)
 	// The modules that are being used for tracking
 	LandmarkDetector::CLNF face_model(det_parameters.model_location);
 
+	if (!face_model.eye_model)
+	{
+		cout << "WARNING: no eye model found" << endl;
+	}
+
 	// Open a sequence
 	Utilities::SequenceCapture sequence_reader;
 

exe/FaceLandmarkVidMulti/FaceLandmarkVidMulti.cpp

@@ -158,6 +158,16 @@ int main (int argc, char **argv)
 	face_analysis_params.OptimizeForImages();
 	FaceAnalysis::FaceAnalyser face_analyser(face_analysis_params);
 
+	if (!face_model.eye_model)
+	{
+		cout << "WARNING: no eye model found" << endl;
+	}
+
+	if (face_analyser.GetAUClassNames().size() == 0 && face_analyser.GetAUClassNames().size() == 0)
+	{
+		cout << "WARNING: no Action Unit models found" << endl;
+	}
+
 	// Open a sequence
 	Utilities::SequenceCapture sequence_reader;
 
@@ -185,12 +195,13 @@ int main (int argc, char **argv)
 
 		Utilities::RecorderOpenFaceParameters recording_params(arguments, true, sequence_reader.IsWebcam(),
 			sequence_reader.fx, sequence_reader.fy, sequence_reader.cx, sequence_reader.cy, sequence_reader.fps);
-		// Do not do AU detection on multi-face case as it is not supported
+		if (!face_model.eye_model)
-		recording_params.setOutputAUs(false);
+		{
+			recording_params.setOutputGaze(false);
+		}
+
 		Utilities::RecorderOpenFace open_face_rec(sequence_reader.name, recording_params, arguments);
 
-		if (recording_params.outputGaze() && !face_model.eye_model)
-			cout << "WARNING: no eye model defined, but outputting gaze" << endl;
 
 		if (sequence_reader.IsWebcam())
 		{

exe/FeatureExtraction/FeatureExtraction.cpp

@@ -121,6 +121,16 @@ int main (int argc, char **argv)
 	FaceAnalysis::FaceAnalyserParameters face_analysis_params(arguments);
 	FaceAnalysis::FaceAnalyser face_analyser(face_analysis_params);
 
+	if (!face_model.eye_model)
+	{
+		cout << "WARNING: no eye model found" << endl;
+	}
+
+	if (face_analyser.GetAUClassNames().size() == 0 && face_analyser.GetAUClassNames().size() == 0)
+	{
+		cout << "WARNING: no Action Unit models found" << endl;
+	}
+
 	Utilities::SequenceCapture sequence_reader;
 
 	// A utility for visualizing the results
@@ -150,6 +160,10 @@ int main (int argc, char **argv)
 		
 		Utilities::RecorderOpenFaceParameters recording_params(arguments, true, sequence_reader.IsWebcam(),
 			sequence_reader.fx, sequence_reader.fy, sequence_reader.cx, sequence_reader.cy, sequence_reader.fps);
+		if (!face_model.eye_model)
+		{
+			recording_params.setOutputGaze(false);
+		}
 		Utilities::RecorderOpenFace open_face_rec(sequence_reader.name, recording_params, arguments);
 
 		if (recording_params.outputGaze() && !face_model.eye_model)

gui/OpenFaceDemo/MainWindow.xaml.cs

@@ -259,7 +259,8 @@ namespace OpenFaceDemo
                 {
 
                     var au_regs = face_analyser.GetCurrentAUsReg();
-
+                    if(au_regs.Count > 0)
+                    { 
                         double smile = (au_regs["AU12"] + au_regs["AU06"] + au_regs["AU25"]) / 13.0;
                         double frown = (au_regs["AU15"] + au_regs["AU17"]) / 12.0;
 
@@ -290,6 +291,15 @@ namespace OpenFaceDemo
                         brow_down_cumm = browDict[1];
                         widen_cumm = eyeDict[0];
                         wrinkle_cumm = eyeDict[1];
+                    }
+                    else
+                    {
+                        // If no AUs present disable the AU visualization
+                        MainGrid.ColumnDefinitions[2].Width = new GridLength(0);
+                        eyePlot.Visibility = Visibility.Collapsed;
+                        browPlot.Visibility = Visibility.Collapsed;
+                        smilePlot.Visibility = Visibility.Collapsed;
+                    }
 
                     Dictionary<int, double> poseDict = new Dictionary<int, double>();
                     poseDict[0] = -pose[3];

lib/local/Utilities/include/RecorderOpenFaceParameters.h

@@ -78,6 +78,7 @@ namespace Utilities
 		float getCy() const { return cy; }
 
 		void setOutputAUs(bool output_AUs) { this->output_AUs = output_AUs; }
+		void setOutputGaze(bool output_gaze) { this->output_gaze = output_gaze; }
 
 	private:
 		

lib/local/Utilities/src/Visualizer.cpp

@@ -34,6 +34,7 @@
 #include <sstream>
 #include <iomanip>
 #include <map>
+#include <set>
 
 #include "Visualizer.h"
 #include "VisualizationUtils.h"
@@ -236,7 +237,22 @@ void Visualizer::SetObservationActionUnits(const std::vector<std::pair<std::stri
 {
 	if(au_intensities.size() > 0 || au_occurences.size() > 0)
 	{
-		const int NB_AUS = 17;
+
+		std::set<std::string> au_names;
+		std::map<std::string, bool> occurences_map;
+		std::map<std::string, double> intensities_map;
+
+		for (size_t idx = 0; idx < au_intensities.size(); idx++)
+		{
+			au_names.insert(au_intensities[idx].first);
+			intensities_map[au_intensities[idx].first] = au_intensities[idx].second;
+		}
+
+		for (size_t idx = 0; idx < au_occurences.size(); idx++)
+		{
+			au_names.insert(au_occurences[idx].first);
+			occurences_map[au_occurences[idx].first] = au_occurences[idx].second;
+		}
 		
 		const int AU_TRACKBAR_LENGTH = 400;
 		const int AU_TRACKBAR_HEIGHT = 10;
@@ -244,13 +260,46 @@ void Visualizer::SetObservationActionUnits(const std::vector<std::pair<std::stri
 		const int MARGIN_X = 185;
 		const int MARGIN_Y = 10;
 
-		action_units_image = cv::Mat(NB_AUS * (AU_TRACKBAR_HEIGHT + 10) + MARGIN_Y * 2, AU_TRACKBAR_LENGTH + MARGIN_X, CV_8UC3, cv::Scalar(255,255,255));
+		const int nb_aus = au_names.size();
+
+		// Do not reinitialize
+		if(action_units_image.empty())
+		{
+			action_units_image = cv::Mat(nb_aus * (AU_TRACKBAR_HEIGHT + 10) + MARGIN_Y * 2, AU_TRACKBAR_LENGTH + MARGIN_X, CV_8UC3, cv::Scalar(255,255,255));
+		}
+		else
+		{
+			action_units_image.setTo(255);
+		}
 
 		std::map<std::string, std::pair<bool, double>> aus;
 
 		// first, prepare a mapping "AU name" -> { present, intensity }
-		for (size_t idx = 0; idx < au_intensities.size(); idx++) {
+		for (auto au_name : au_names)
-			aus[au_intensities[idx].first] = std::make_pair(au_occurences[idx].second != 0, au_intensities[idx].second);
+		{
+			// Insert the intensity and AU presense (as these do not always overlap check if they exist first)
+			bool occurence = false;
+			if (occurences_map.find(au_name) != occurences_map.end())
+			{
+				occurence = occurences_map[au_name] != 0;
+			}
+			else
+			{
+				// If we do not have an occurence label, trust the intensity one
+				occurence = intensities_map[au_name] > 1;
+			}
+			double intensity = 0.0;
+			if (intensities_map.find(au_name) != intensities_map.end())
+			{
+				intensity = intensities_map[au_name];
+			}
+			else
+			{
+				// If we do not have an intensity label, trust the occurence one
+				intensity = occurences_map[au_name] == 0 ? 0 : 5;
+			}
+
+			aus[au_name] = std::make_pair(occurence, intensity);
 		}
 
 		// then, build the graph
@@ -382,12 +431,10 @@ char Visualizer::ShowObservation()
 	}
 	if (vis_aus && !action_units_image.empty())
 	{
-		cv::namedWindow("action units", cv::WindowFlags::WINDOW_KEEPRATIO);
 		cv::imshow("action units", action_units_image);
 	}
 	if (vis_track)
 	{
-		cv::namedWindow("tracking result", cv::WindowFlags::WINDOW_KEEPRATIO);
 		cv::imshow("tracking result", captured_image);
 	}
 	return cv::waitKey(1);