public HandDetector(BeGazeData beGazeData, Video video, BackgroundWorker backgroundWorker)
{
BeGazeData = beGazeData;
Video = video;
_backgroundWorker = backgroundWorker;
HgdData = new HgdData();
StopBool = false;
}
/// <summary>
/// This will measure the distance between the gaze point and the closest hand for each frame in the video.
/// For each time step the hands are detected and compared to the (x, y)-coordinates of the gaze. The
/// distance between the two is recorded and stored in the HgdData.
/// </summary>
/// <returns></returns>
public HgdData MeasureRawHgd()
{
StopBool = false;
List <float> rawDistance = new List <float>();
GC.Collect();
GC.WaitForPendingFinalizers();
for (int index = 0; index < Video.FrameCount; index++)
{
if (StopBool)
{
break;
}
PointF coordinates = BeGazeData.GetCoordinatePoint(index);
Image <Bgr, byte> frame = Video.GetBgrImageFrame();
float distance = float.NaN;
if (frame != null)
{
distance = MeasureHgd(frame, coordinates);
frame.Dispose();
}
rawDistance.Add(distance);
Progress = Convert.ToInt32(((double)index / Video.FrameCount) * 100);
if (Progress % 2 == 0)
{
_backgroundWorker.ReportProgress(Progress);
}
}
HgdData.RawDistance = rawDistance;
return(HgdData);
}
