public Point Detect(FaceRect face, Mat frame)
{
mode = DetectMode;
var properties = ScreenProperties;
if (face == null)
{
throw new ArgumentNullException("face");
}
if (frame == null || frame.IsEmpty)
{
throw new ArgumentNullException("frame");
}
if (properties == null)
{
throw new ArgumentNullException("properties");
}
switch (mode)
{
case EyeGazeDetectMode.LeftOnly:
if (face.LeftEye == null)
{
return(null);
}
break;
case EyeGazeDetectMode.FaceV2Mobile:
case EyeGazeDetectMode.FaceV2:
case EyeGazeDetectMode.FaceMobile:
case EyeGazeDetectMode.Face:
case EyeGazeDetectMode.Both:
if (face.LeftEye == null || face.RightEye == null)
{
return(null);
}
break;
default:
throw new NotImplementedException();
}
Profiler.Start("GazeDetect");
Point vecPt = null;
Point result = new Point(0, 0);
Point pt = new Point(0, 0);
switch (mode)
{
case EyeGazeDetectMode.LeftOnly:
using (Mat left = face.LeftEye.RoiCropByPercent(frame, .33))
result = DetectLeftEyes(left);
break;
case EyeGazeDetectMode.Both:
using (Mat left = face.LeftEye.RoiCropByPercent(frame, .33))
using (Mat right = face.RightEye.RoiCropByPercent(frame, .33))
result = DetectBothEyes(left, right);
break;
case EyeGazeDetectMode.FaceV2Mobile:
case EyeGazeDetectMode.FaceV2:
case EyeGazeDetectMode.FaceMobile:
case EyeGazeDetectMode.Face:
using (Mat left = face.LeftEye.RoiCropByPercent(frame, .25))
using (Mat right = face.RightEye.RoiCropByPercent(frame, .25))
using (Mat faceRoi = face.ROI(frame))
result = DetectFace(faceRoi, left, right);
break;
default:
throw new NotImplementedException();
}
var x = result.X * -1;
var y = result.Y * -1;
if (UseModification)
{
x = (x + OffsetX) * SensitiveX;
y = (y + OffsetY) * SensitiveY;
}
vecPt = new Point(x, y);
if (UseSmoothing && !Calibrator.IsCalibrating)
{
vecPt = Smoother.Smooth(vecPt);
}
Vector <double> vec = CreateVector.Dense(new double[] { vecPt.X, vecPt.Y, -1 });
pt = face.SolveRayScreenVector(new Point3D(vec.ToArray()), properties);
if (ClipToBound)
{
pt.X = Util.Clamp(pt.X, 0, ScreenProperties.PixelSize.Width);
pt.Y = Util.Clamp(pt.Y, 0, ScreenProperties.PixelSize.Height);
}
face.GazeInfo = new EyeGazeInfo()
{
ScreenPoint = pt,
Vector = new Point3D(vecPt.X, vecPt.Y, -1),
ClipToBound = ClipToBound,
};
Calibrator.Push(new CalibratingPushData(face));
if (UseCalibrator)
{
Calibrator.Apply(face, ScreenProperties);
}
Profiler.End("GazeDetect");
return(face.GazeInfo.ScreenPoint);
}