public IList<FingerPoint> FindFingerPoints(Contour contour, ConvexHull convexHull)
{
this.contourPoints = contour.Points;
var thinnedHullPoints = this.lineThinner.Filter(convexHull.Points);
var verifiedHullPoints = this.VerifyPointsByContour(thinnedHullPoints);
return verifiedHullPoints.Select(r => new FingerPoint(r)).ToList();
}
public Shape(Point center, Volume volume, Contour contour, ConvexHull convexHull, IList<Point> points)
{
this.center = center;
this.volume = volume;
this.contour = contour;
this.convexHull = convexHull;
this.points = points;
}
private void FindBasePoints(Contour contour, FingerPoint fingerPoint)
{
var fingerPointIndex = FindIndex(fingerPoint.Fingertip, contour);
var distanceAdjustedOffset = (int)(offsetDistance * indexOffset / fingerPoint.Fingertip.Z);
fingerPoint.BaseLeft = contour.GetPointAt(Rollover(fingerPointIndex - distanceAdjustedOffset, contour.Count));
fingerPoint.BaseRight = contour.GetPointAt(Rollover(fingerPointIndex + distanceAdjustedOffset, contour.Count));
var baseCenter = Point.Center(fingerPoint.BaseLeft, fingerPoint.BaseRight);
fingerPoint.DirectionVector = Point.Subtract(fingerPoint.Fingertip, baseCenter).GetNormalizedVector();
}
public Palm FindCenter(ConvexHull hull, Contour contour, IList<Point> candidates)
{
this.result = null;
candidates = ReduceCandidatePoints(hull, candidates);
if (candidates.Count > 0) {
var minimizedContour = new LineThinner(contourReduction, false).Filter(contour.Points);
this.FindCenterFromCandidates(minimizedContour, candidates);
if (this.result != null) {
this.IncreaseAccuracy(this.result.Location, minimizedContour);
}
}
return result;
}
private IList<FingerPoint> DetectFingerPoints(ConvexHull convexHull, Contour contour)
{
if (!this.settings.DetectFingers) {
return new List<FingerPoint>();
}
return this.fingerPointDetector.FindFingerPoints(contour, convexHull);
}
private Palm DetectPalm(Shape shape, Contour contour)
{
var candidates = shape.Points;
Palm palm = null;
if (this.settings.DetectCenterOfPalm && shape.PointCount > 0 && contour.Count > 0) {
palm = this.palmFinder.FindCenter(shape.ConvexHull, contour, shape.Points);
}
return palm;
}
private int FindIndex(Point point, Contour contour)
{
return Point.FindIndexOfNearestPoint(point, contour.Points);
}
public void Detect(Contour contour, IList<FingerPoint> fingerTips)
{
foreach (var fingerPoint in fingerTips) {
FindBasePoints(contour, fingerPoint);
}
}
