Eyetracking

Allgemein

In unserem Eyetracking Projekt versuchen wir ein "Low cost mobile head monted eyetracking" zusammenzusetellen, um an der Hochschule Luzern ein Forschungslabor einzurichten.

The aim of the Eyetracking Project is to provide a "low cost mobile head monted eyetracking" system for use in a research loboratory.

Installation

This guide is for installation on OSX 10.4.x systems. (Installation on OSX 10.5 will need some modifications.) You'll need following software:

• Apple XTools / XCode
• svnX
• Darwinports
• Openeyes
• Opencv
• libdc1394
• InsomniaX

Install Apple XTools / XCode

Download and install svnX

Download and install InsomniaX

Download and install Darwinports and then in the Terminal:

• sudo port install pkgconfig

Download Openeyes (alternativ Link) and unpack in $HOME/devel/ .

To install libdc1394, open the Terminal and enter:

• cd $HOME/devel
• svn co https://libdc1394.svn.sourceforge.net/svnroot/libdc1394/trunk/libdc1394/ -r 537 libdc1394r537
• (I use the revision 537 for OSX 10.4.X, OSX 10.5.X should be able to work with head)
• cd libdc1394r537
• autoreconf -i -s

Download Opencv to $HOME/devel, apply the following patch (it permits you to see the value of a slider in the gui) and build the frameworks

• cd $HOME/opencv
• patch -p0 < window_carbon.patch
• ./make_frameworks.sh

window_carbon.patch :

--- otherlibs/highgui/window_carbon.cpp 2008-07-09 13:54:43.000000000 +0200
+++ otherlibs/highgui/window_carbon.new.cpp     2008-07-09 13:54:32.000000000 +0200
@@ -50,6 +50,7 @@
 //#define MS_TO_TICKS(a) a*3/50
 
 #define LABELWIDTH 64
+#define CELLWIDTH 32
 #define INTERWIDGETSPACE 16
 #define WIDGETHEIGHT 32
 #define NO_KEY -1
@@ -62,6 +63,7 @@
     
     ControlRef trackbar;
     ControlRef label;
+       ControlRef cell;
     
     char* name;
     CvTrackbar* next;
@@ -447,22 +466,33 @@
     
     __END__;
 }
+/* TODO: Create Textbox to enter numerical value
+void TrackbarCellActionProcPtr (ControlRef theControl, ControlPartCode partCode)
+{
+}
+*/
 
 void TrackbarActionProcPtr (ControlRef theControl, ControlPartCode partCode)
 {
     CvTrackbar * trackbar = icvTrackbarByHandle (theControl);
+       char controlString[5];
     
        if (trackbar == NULL)
        {
         fprintf(stderr,"Error getting trackbar\n");
         return;
     }
-       else 
+       else
        {
-        if ( trackbar->data )
+               if ( trackbar->data )
             *trackbar->data = GetControl32BitValue (theControl);
         if ( trackbar->notify )
             trackbar->notify(GetControl32BitValue (theControl));
+               if ( trackbar->cell ){
+                       sprintf( controlString, "%u", *trackbar->data );
+                       SetControlData( trackbar->cell, kControlEntireControl, kControlEditTextTextTag, strlen( controlString ), controlString );
+                       Draw1Control( trackbar->cell );
+               }
     }
 }
 
@@ -479,6 +509,7 @@
     Rect  stboundsRect;
     ControlRef outControl;
     ControlRef stoutControl;
+       ControlRef celloutControl;
     Rect bounds;
     
     if( !window_name || !trackbar_name )
@@ -527,26 +558,39 @@
         stboundsRect.bottom = stboundsRect.top + WIDGETHEIGHT;
         stboundsRect.right = stboundsRect.left+LABELWIDTH;
         
-        fprintf(stdout,"create trackabar bounds (%d %d %d %d)\n",stboundsRect.top,stboundsRect.left,stboundsRect.bottom,stboundsRect.right);
+        //fprintf(stdout,"create trackbar static text bounds (%d %d %d %d)\n",stboundsRect.top,stboundsRect.left,stboundsRect.bottom,stboundsRect.right);
         CreateStaticTextControl (window->window,&stboundsRect,CFStringCreateWithCString(NULL,trackbar_name,kCFStringEncodingASCII),NULL,&stoutControl);
         
         stboundsRect.top = (INTERWIDGETSPACE +WIDGETHEIGHT)* (c-1)+INTERWIDGETSPACE;
         stboundsRect.left = INTERWIDGETSPACE*2+LABELWIDTH;
         stboundsRect.bottom = stboundsRect.top + WIDGETHEIGHT;
+        stboundsRect.right =  INTERWIDGETSPACE*2+LABELWIDTH+CELLWIDTH;
+
+/* TODO: Create Textbox to enter numerical value
+               CreateEditUnicodeTextControl (window->window,&stboundsRect, CFStringCreateWithFormat(kCFAllocatorDefault, NULL, CFSTR("%u"), trackbar->pos), false, NULL, &celloutControl);
+               SetControlAction(celloutControl,NewControlActionUPP(TrackbarCellActionProcPtr));
+*/
+               CreateStaticTextControl (window->window,&stboundsRect,CFStringCreateWithFormat(kCFAllocatorDefault, NULL, CFSTR("%u"), trackbar->pos), NULL, &celloutControl);
+
+        stboundsRect.top = (INTERWIDGETSPACE +WIDGETHEIGHT)* (c-1)+INTERWIDGETSPACE;
+        stboundsRect.left = INTERWIDGETSPACE*3+LABELWIDTH+CELLWIDTH;
+        stboundsRect.bottom = stboundsRect.top + WIDGETHEIGHT;
         stboundsRect.right =  bounds.right-INTERWIDGETSPACE;
-        
-        CreateSliderControl (window->window,&stboundsRect, trackbar->pos,0,trackbar->maxval,kControlSliderLiveFeedback,0,true,NewControlActionUPP(TrackbarActionProcPtr),&outControl);
-        
+
+        CreateSliderControl (window->window,&stboundsRect,trackbar->pos,0,trackbar->maxval,kControlSliderLiveFeedback,10,true, NewControlActionUPP(TrackbarActionProcPtr),&outControl);
+
         bounds.bottom += INTERWIDGETSPACE + WIDGETHEIGHT;
         SetControlVisibility (outControl,true,true);
         SetControlVisibility (stoutControl,true,true);
+               SetControlVisibility (celloutControl,true,true);
         
         trackbar->trackbar = outControl;
         trackbar->label = stoutControl;
+               trackbar->cell = celloutControl;
         if (c == 1)
-            window->trackbarheight = INTERWIDGETSPACE*2 + WIDGETHEIGHT;
+            window->trackbarheight = INTERWIDGETSPACE*2 + WIDGETHEIGHT/2;
         else
-            window->trackbarheight += INTERWIDGETSPACE + WIDGETHEIGHT;
+            window->trackbarheight += INTERWIDGETSPACE + WIDGETHEIGHT/2;
         icvUpdateWindowSize( window );
     }
     __END__;
@@ -702,7 +746,8 @@
     Rect        contentBounds = {100,100,320,440};
     
     CvWindow* window;
-    UInt wAttributes = 0;
+    //UInt wAttributes = 0;
+       WindowAttributes  wAttributes;
     
     int len;
     
@@ -738,7 +783,8 @@
     if( hg_windows )
         hg_windows->prev = window;
     hg_windows = window;
-    wAttributes =  kWindowStandardDocumentAttributes | kWindowStandardHandlerAttribute | kWindowLiveResizeAttribute;
+    //wAttributes =  kWindowStandardDocumentAttributes | kWindowStandardHandlerAttribute | kWindowLiveResizeAttribute;
+       wAttributes = kWindowStandardDocumentAttributes | kWindowStandardHandlerAttribute | kWindowLiveResizeAttribute;
     
     err = CreateNewWindow ( kDocumentWindowClass,wAttributes,&contentBounds,&outWindow);
     if (err != noErr)
@@ -753,6 +799,7 @@
     err = InstallWindowEventHandler(outWindow, NewEventHandlerUPP(windowEventHandler), GetEventTypeCount(genericWindowEventHandler), genericWindowEventHandler, outWindow, NULL);
     
     ShowWindow( outWindow );
+       InitCursor ();
     result = 1;
 
     __END__;
@@ -863,7 +910,7 @@
             Rect bounds;
             GetWindowBounds(window->window,kWindowContentRgn,&bounds);
             for ( t = window->toolbar.first; t != 0; t = t->next )
-                SizeControl(t->trackbar,bounds.right - bounds.left - INTERWIDGETSPACE*3 - LABELWIDTH , WIDGETHEIGHT); 
+                SizeControl(t->trackbar,bounds.right - bounds.left - INTERWIDGETSPACE*4 - LABELWIDTH - CELLWIDTH, WIDGETHEIGHT); 
         }
             /* redraw the image */
             icvDrawImage(window);

The OpenCV.framework will be located in $HOME/devel

Now it's time to create the xcode project for Openeyes.

• Project > New Build Phase > New Copy Files Build Phase
• (on the created Build Phase ) Apple-I and Destination Frameworks