Initial commit of EyeTab files

.gitattributes

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.gitignore

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 *.lai
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+# =========================
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+opencv_libs.txt

ConicSection.h

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+#ifndef __CONIC_SECTION_H__
+#define __CONIC_SECTION_H__
+
+// From http://www.cl.cam.ac.uk/research/rainbow/projects/pupiltracking/
+
+template<typename T>
+class ConicSection_
+{
+public:
+	T A,B,C,D,E,F;
+
+	ConicSection_(cv::RotatedRect r)
+	{
+		cv::Point_<T> axis((T)std::cos(CV_PI/180.0 * r.angle), (T)std::sin(CV_PI/180.0 * r.angle));
+		cv::Point_<T> centre(r.center);
+		T a = r.size.width/2;
+		T b = r.size.height/2;
+
+		initFromEllipse(axis, centre, a, b);
+	}
+
+	T algebraicDistance(cv::Point_<T> p)
+	{
+		return A*p.x*p.x + B*p.x*p.y + C*p.y*p.y + D*p.x + E*p.y + F;
+	}
+
+	T distance(cv::Point_<T> p)
+	{
+		//    dist
+		// -----------
+		// |grad|^0.45
+
+		T dist = algebraicDistance(p);
+		cv::Point_<T> grad = algebraicGradient(p);
+
+		T sqgrad = grad.dot(grad);
+
+		return dist / std::pow(sqgrad, T(0.45/2));
+	}
+
+	cv::Point_<T> algebraicGradient(cv::Point_<T> p)
+	{
+		return cv::Point_<T>(2*A*p.x + B*p.y + D, B*p.x + 2*C*p.y + E);
+	}
+
+	cv::Point_<T> algebraicGradientDir(cv::Point_<T> p)
+	{
+		cv::Point_<T> grad = algebraicGradient(p);
+		T len = std::sqrt(grad.ddot(grad));
+		grad.x /= len;
+		grad.y /= len;
+		return grad;
+	}
+
+protected:
+	void initFromEllipse(cv::Point_<T> axis, cv::Point_<T> centre, T a, T b)
+	{
+		T a2 = a * a;
+		T b2 = b * b;
+
+		A = axis.x*axis.x / a2 + axis.y*axis.y / b2;
+		B = 2*axis.x*axis.y / a2 - 2*axis.x*axis.y / b2;
+		C = axis.y*axis.y / a2 + axis.x*axis.x / b2;
+		D = (-2*axis.x*axis.y*centre.y - 2*axis.x*axis.x*centre.x) / a2
+			+ (2*axis.x*axis.y*centre.y - 2*axis.y*axis.y*centre.x) / b2;
+		E = (-2*axis.x*axis.y*centre.x - 2*axis.y*axis.y*centre.y) / a2
+			+ (2*axis.x*axis.y*centre.x - 2*axis.x*axis.x*centre.y) / b2;
+		F = (2*axis.x*axis.y*centre.x*centre.y + axis.x*axis.x*centre.x*centre.x + axis.y*axis.y*centre.y*centre.y) / a2
+			+ (-2*axis.x*axis.y*centre.x*centre.y + axis.y*axis.y*centre.x*centre.x + axis.x*axis.x*centre.y*centre.y) / b2
+			- 1;
+	}
+};
+typedef ConicSection_<float> ConicSection;
+
+#endif // __CONIC_SECTION_H__

EyeTab.cpp

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+#include "stdafx.h"
+
+#include <opencv2/objdetect/objdetect.hpp>
+#include <opencv2/highgui/highgui.hpp>
+#include <opencv2/imgproc/imgproc.hpp>
+ 
+#include <iostream>
+#include <stdio.h>
+#include <time.h>       /* clock_t, clock, CLOCKS_PER_SEC */
+#include <math.h>       /* floor */
+ 
+#include "eye_center.h"
+#include "erase_specular.h"
+#include "get_poss_limb_pts.h"
+#include "fit_ellipse.h"
+#include "utils.h"
+#include "get_eyelids.h"
+#include "gaze_system.h"
+#include "gaze_smoothing.h"
+
+using namespace std;
+using namespace cv;
+
+int num_screenshots = 0;
+String screenshot_filename;
+
+int main(int argc, const char** argv)
+{
+	// init modules
+	lin_polar_init();
+	gaze_system_init();
+	//init_gaze_smoothing();
+
+    //setup video capture device
+    // VideoCapture cap("C:\\Users\\Erroll\\Documents\\Part 3 Project (local)\\Gaze Data\\P01\\P01_L2_D1_20130517_133459.mp4");
+	// VideoCapture cap("C:\\Users\\Erroll\\Documents\\Part 3 Project (local)\\Gaze Data\\P03\\P03_L1_D1_20130517_163141.mp4");
+	// VideoCapture cap("C:\\Users\\Erroll\\Documents\\Part 3 Project (local)\\Gaze Data\\P06\\P06_L1_D1_20130520_154535.mp4");
+
+	int cam_idx = argc > 1 ? atoi(argv[1]) : 0;
+	VideoCapture cap(cam_idx);
+	cap.set(CV_CAP_PROP_FRAME_WIDTH, 1280);
+	cap.set(CV_CAP_PROP_FRAME_HEIGHT, 720);
+
+	bool rot_180 = argc > 2 ? true : false;
+ 
+    //setup image files used in the capture process
+    Mat captureFrame, grayscaleFrame, smallFrame;
+ 
+    //create a window to present the results
+    namedWindow("outputCapture", 1);
+	//namedWindow("Gaze Output", 1);
+	//moveWindow("Gaze Output", 0, 0);
+ 
+    //create a loop to capture and find eye-pairs
+    while(true)
+    {
+		clock_t start = clock();
+
+        //capture a new image frame
+        cap >> captureFrame;
+		// captureFrame = imread("images\\SS_0.jpg", CV_LOAD_IMAGE_COLOR);
+		// flip(captureFrame,captureFrame,1);
+
+		if (rot_180)
+			flip(captureFrame, captureFrame, -1);
+ 
+        //convert captured image to gray scale and equalize
+        cvtColor(captureFrame, grayscaleFrame, CV_BGR2GRAY);
+        equalizeHist(grayscaleFrame, grayscaleFrame);
+
+		track_gaze(captureFrame, grayscaleFrame);
+ 
+		// Show calculated FPS
+		String fps_string = to_string(int(1 / ( ((float)clock()-start) / CLOCKS_PER_SEC ))) + " FPS";
+		putText(captureFrame, fps_string, Point2i(11, 21), FONT_HERSHEY_SIMPLEX, 0.5, BLACK);
+		putText(captureFrame, fps_string, Point2i(10, 20), FONT_HERSHEY_SIMPLEX, 0.5, WHITE);
+
+		// Show the output
+        imshow("outputCapture", captureFrame);
+
+		switch (waitKey(5)){
+		case 's':
+			screenshot_filename = "SS_" + to_string(num_screenshots++);
+			imwrite(screenshot_filename + ".jpg", captureFrame);
+			break;
+		case 'q': return 0;
+		}
+    }
+ 
+    return 0;
+}