Robust/src/Benchmarks/SSJava/EyeTracking/DeviationScanner.java

   1 /*\r
   2  * Copyright 2009 (c) Florian Frankenberger (darkblue.de)\r
   3  * \r
   4  * This file is part of LEA.\r
   5  * \r
   6  * LEA is free software: you can redistribute it and/or modify it under the\r
   7  * terms of the GNU Lesser General Public License as published by the Free\r
   8  * Software Foundation, either version 3 of the License, or (at your option) any\r
   9  * later version.\r
  10  * \r
  11  * LEA is distributed in the hope that it will be useful, but WITHOUT ANY\r
  12  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR\r
  13  * A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more\r
  14  * details.\r
  15  * \r
  16  * You should have received a copy of the GNU Lesser General Public License\r
  17  * along with LEA. If not, see <http://www.gnu.org/licenses/>.\r
  18  */\r
  19 \r
  20 \r
  21 import java.awt.geom.Rectangle2D;\r
  22 \r
  23 /**\r
  24  * No description given.\r
  25  * \r
  26  * @author Florian Frankenberger\r
  27  */\r
  28 public class DeviationScanner {\r
  29 \r
  30         private StaticSizeArrayList<EyePosition> eyePositions = new StaticSizeArrayList<EyePosition>(3);\r
  31         \r
  32         public DeviationScanner() {\r
  33         }\r
  34 \r
  35         public void addEyePosition(EyePosition eyePosition) {\r
  36                 eyePositions.add(eyePosition);\r
  37         }\r
  38         \r
  39         public Deviation scanForDeviation(Rectangle2D faceRect) {\r
  40                 Deviation deviation = Deviation.NONE;\r
  41                 if (eyePositions.size() >= 3) {\r
  42                         double deviationX = 0;\r
  43                         double deviationY = 0;\r
  44                         \r
  45                         EyePosition lastEyePosition = null;\r
  46                         for (int i = 0; i < 3; ++i) {\r
  47                                 EyePosition eyePosition = this.eyePositions.get(i);\r
  48                                 if (lastEyePosition != null) {\r
  49                                         deviationX += (eyePosition.getX() - lastEyePosition.getX());\r
  50                                         deviationY += (eyePosition.getY() - lastEyePosition.getY());\r
  51                                 }\r
  52                                 lastEyePosition = eyePosition; \r
  53                         }\r
  54                         \r
  55                         final double deviationPercentX = 0.04;\r
  56                         final double deviationPercentY = 0.04;\r
  57                         \r
  58                         deviationX /= faceRect.getWidth();\r
  59                         deviationY /= faceRect.getWidth();\r
  60                         \r
  61                         int deviationAbsoluteX = 0;\r
  62                         int deviationAbsoluteY = 0;\r
  63                         if (deviationX > deviationPercentX) deviationAbsoluteX = 1;\r
  64                         if (deviationX < -deviationPercentX) deviationAbsoluteX = -1;\r
  65                         if (deviationY > deviationPercentY) deviationAbsoluteY = 1;\r
  66                         if (deviationY < -deviationPercentY) deviationAbsoluteY = -1;\r
  67                         \r
  68                         deviation = Deviation.getDirectionFor(deviationAbsoluteX, deviationAbsoluteY);\r
  69                         if (deviation != Deviation.NONE) this.eyePositions.clear();\r
  70                         //System.out.println(String.format("%.2f%% | %.2f%% => %d and %d >>> %s", deviationX*100, deviationY*100, deviationAbsoluteX, deviationAbsoluteY, deviation.toString()));\r
  71                         \r
  72                 }\r
  73                 \r
  74                 return deviation;\r
  75         }\r
  76         \r
  77         public void clear() {\r
  78                 System.out.println("CLEAR");\r
  79                 this.eyePositions.clear();\r
  80         }\r
  81 }\r