public static extern void GetInitialEyeCenter(out PixelPoint leftCenter_initial, out PixelPoint rightCenter_initial);
public static extern void GetEyeCenter(out PixelPoint leftEyeCenter, out PixelPoint rightEyeCenter, out PixelPoint leftRelocation, out PixelPoint rightRelocation);
void OnTracking()
{
//load_whiteimage();
while (IsRunning2)
{
int result0 = 0;
int result1 = 0;
bool resultrelocation;
bool flag = true;
if (a == 1)
{
TrackState = "Starting...";
}
bool result;
try
{
while (!StartTracking()) ;
GetInitialEyeCenter(out leftCenter_initial, out rightCenter_initial);
TrackState = "Tracking...";
int i = 0;
int num_lost = 0;
PixelPoint left_pre = new PixelPoint();
PixelPoint right_pre = new PixelPoint();
left_pre = leftCenter_initial;
right_pre = rightCenter_initial;
int left_pre_x = leftCenter_initial.X;
int left_pre_y = leftCenter_initial.Y;
int right_pre_x = rightCenter_initial.X;
int right_pre_y = rightCenter_initial.Y;
while (IsRunning2)
{
time1 = DateTime.Now;
if (!ImageCapture())
{
MessageBox.Show("Fail to capture image!", "Error", MessageBoxButton.OK, MessageBoxImage.Warning);
break;
}
use_time3 = (int)(DateTime.Now - time1).TotalMilliseconds + use_time3;
result = Tracking();
use_time4 = (int)(DateTime.Now - time1).TotalMilliseconds + use_time4;
resultrelocation = Result_Relocation_aa();
if (resultrelocation == false)
result0++;
resultrelocation = Result_Relocation_bb();
if (resultrelocation == false)
result1++;
use_time5 = (int)(DateTime.Now - time1).TotalMilliseconds + use_time5;
GetEyeCenter(out leftEyeCenter, out rightEyeCenter, out leftRelocation, out rightRelocation);
//两眼基本应处于水平位置,此外，人眼跟丢时，meanshift数值一直不变
if (abs(leftEyeCenter.Y - rightEyeCenter.Y) > 50 || abs(leftRelocation.Y - rightRelocation.Y) > 50)
{
TrackState = "Relocation";
flag = false;
a = 2;
}
else if (left_pre.Equals(leftEyeCenter) && right_pre.Equals(rightEyeCenter))
{
num_lost++;
if (num_lost > 150)
{
num_lost = 0;
TrackState = "Relocation";
flag = false;
a = 2;
}
}
left_pre = leftEyeCenter;
right_pre = rightEyeCenter;
use_time6 = (int)(DateTime.Now - time1).TotalMilliseconds + use_time6;
//if (result0 > 10 || result1 > 10)
//{
// TrackState = "Relocation";
// result0 = 0;
// result1 = 0;
// flag = false;
// a = 2;
//}
use_time1 = (int)(DateTime.Now - time1).TotalMilliseconds + use_time1;
UIUpdate(flag);
use_time2 = (int)(DateTime.Now - time1).TotalMilliseconds + use_time2;
if (i < 20)
i++;
else
i = 100;
if (flag == false)
break;
}
}
//发现异常，终止该进程
catch (System.Exception ex)
{
if (TrackingThread.IsAlive)
{
TrackingThread.Abort();
TrackState = "出Bug了...";
//重新开始
//TrackingThread = new Thread(new ThreadStart(OnTracking));
TrackingThread = new Thread(new ThreadStart(delegate { RecordAvi("test.avi"); }));
TrackingThread.SetApartmentState(ApartmentState.STA);
TrackingThread.IsBackground = true;
TrackingThread.Start();
}
}
}
}
