public Coordinates2D?GetFaceCoordinates()
{
if (this.trackSucceeded)
{
Coordinates2D c = new Coordinates2D();
c.X = frame.FaceRect.Left;
c.Y = frame.FaceRect.Top;
c.Width = frame.FaceRect.Right - frame.FaceRect.Left;
c.Height = frame.FaceRect.Right - frame.FaceRect.Left;
EnumIndexableCollection <FeaturePoint, PointF> facePoints = frame.GetProjected3DShape();
c.LeftEyeX = (int)((facePoints[FeaturePoint.BelowThreeFourthLeftEyelid].X + facePoints[FeaturePoint.AboveOneFourthLeftEyelid].X) / 2);
c.LeftEyeY = (int)((facePoints[FeaturePoint.BelowThreeFourthLeftEyelid].Y + facePoints[FeaturePoint.AboveOneFourthLeftEyelid].Y) / 2);
c.RightEyeX = (int)((facePoints[FeaturePoint.BelowThreeFourthRightEyelid].X + facePoints[FeaturePoint.AboveOneFourthRightEyelid].X) / 2);
c.RightEyeY = (int)((facePoints[FeaturePoint.BelowThreeFourthRightEyelid].Y + facePoints[FeaturePoint.AboveOneFourthRightEyelid].Y) / 2);
return(c);
}
return(null);
}
/// <summary>
/// Updates the face tracking information for this skeleton
/// </summary>
public void OnFrameReady(KinectSensor kinectSensor, ColorImageFormat colorImageFormat, byte[] colorImage, DepthImageFormat depthImageFormat, short[] depthImage, Skeleton skeletonOfInterest)
{
this.skeletonTrackingState = skeletonOfInterest.TrackingState;
if (this.skeletonTrackingState != SkeletonTrackingState.Tracked)
{
// nothing to do with an untracked skeleton.
return;
}
if (this.faceTracker == null)
{
try
{
this.faceTracker = new FaceTracker(kinectSensor);
}
catch (InvalidOperationException)
{
// During some shutdown scenarios the FaceTracker
// is unable to be instantiated. Catch that exception
// and don't track a face.
Debug.WriteLine("AllFramesReady - creating a new FaceTracker threw an InvalidOperationException");
this.faceTracker = null;
}
}
if (this.faceTracker != null)
{
FaceTrackFrame frame = this.faceTracker.Track(
colorImageFormat, colorImage, depthImageFormat, depthImage, skeletonOfInterest);
this.lastFaceTrackSucceeded = frame.TrackSuccessful;
if (this.lastFaceTrackSucceeded)
{
if (faceTriangles == null)
{
// only need to get this once. It doesn't change.
faceTriangles = frame.GetTriangles();
}
this.facePoints = frame.GetProjected3DShape();
}
}
}
