using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using bbiwarg.Recognition.Tracking;
using bbiwarg.Input.InputHandling;
using bbiwarg.Utility;
namespace bbiwarg.Recognition.HandRecognition
{
///
/// Keeps track of hands over a period of time.
///
class HandTracker : Tracker
{
///
/// Initializes a new instance of the HandTracker class.
///
/// Size of the input image.
public HandTracker(ImageSize imageSize)
: base(imageSize)
{
}
///
/// Updates the TrackedHands with the detected hands in the current frame and stores the results in frameData.trackedFingers.
///
/// the current frame
public void trackHands(FrameData frameData)
{
trackObjects(frameData.DetectedHands);
frameData.TrackedHands = getCurrentObjectsWithState(TrackingState.Tracked);
}
///
/// Calculates the similarity [0-1] of a tracked Hand and a detected Hand.
///
/// the tracked hand
/// the detected hand
///
public override float calculateSimilarity(TrackedHand trackedHand, Hand detectedHand)
{
return getPositionSimilarity(trackedHand.CentroidPrediction, detectedHand.Centroid, Parameters.HandTrackerMaxCentroidRelativeMove);
}
///
/// Creates a TrackedHand.
///
/// the detected hand
/// a Trackedhand
protected override TrackedHand createTrackedObject(Hand detectedObject)
{
return new TrackedHand(idPool.getNextUnusedID(), detectedObject, Parameters.HandTrackerNumFramesDetectedUntilTracked, Parameters.HandTrackerNumFramesLostUntilDeleted);
}
}
}