使用Kinect创建数字目录应用程序

Question

我正在使用kinect v1.8创建一个WPF应用程序来创建数字目录。我试图使用以下代码仅跟踪单个骨架： -

private void SensorSkeletonFrameReady(object sender, SkeletonFrameReadyEventArgs skeletonFrameReadyEventArgs)
    {
        // Even though we un-register all our event handlers when the sensor
        // changes, there may still be an event for the old sensor in the queue
        // due to the way the KinectSensor delivers events.  So check again here.
        if (this.KinectSensor != sender)
        {
            return;
        }


        SkeletonFrame skeletonFrame = skeletonFrameReadyEventArgs.OpenSkeletonFrame();
        if (skeletonFrame == null)
            return;

        Skeleton[] skeletons = new Skeleton[skeletonFrame.SkeletonArrayLength];
        skeletonFrame.CopySkeletonDataTo(skeletons);

        Skeleton skeleton = (from skl in skeletons
                             where skl.TrackingState == SkeletonTrackingState.Tracked
                             select skl).FirstOrDefault();

        if (skeleton == null)
            return;

        Skeleton[] s = new Skeleton[1];
        s[0] = skeleton;

        if (SkeletonTrackingState.Tracked == s[0].TrackingState)
        {
            //s1.SkeletonStream.ChooseSkeletons(s[0].TrackingId);
            var accelerometerReading = this.KinectSensor.AccelerometerGetCurrentReading();
            this.interactionStream.ProcessSkeleton(s, accelerometerReading, skeletonFrame.Timestamp);
        }
}

运行代码时出现异常，检测到骨架如下： -

on the line＆＃34; this.interactionStream.ProcessSkeleton（s，accelerometerReading，skeletonFrame.Timestamp）;＆＃34; 我需要只检测一个骨架并将其用于进一步处理，例如访问数字目录应用程序。 提前谢谢。

Answer 1

您应该尝试使用MSDN

中的此方法跟踪最近的骨架

private void TrackClosestSkeleton()
  {
    if (this.kinect != null && this.kinect.SkeletonStream != null)
        {
        if (!this.kinect.SkeletonStream.AppChoosesSkeletons)
        {
        this.kinect.SkeletonStream.AppChoosesSkeletons = true; // Ensure AppChoosesSkeletons is set
        }

        float closestDistance = 10000f; // Start with a far enough distance
        int closestID = 0;

        foreach (Skeleton skeleton in this.skeletonData.Where(s => s.TrackingState != SkeletonTrackingState.NotTracked))
        {
        if (skeleton.Position.Z < closestDistance)
        {
          closestID = skeleton.TrackingId;
          closestDistance = skeleton.Position.Z;
        }
      }

      if (closestID > 0)
      {
        this.kinect.SkeletonStream.ChooseSkeletons(closestID); // Track this skeleton
      }
    }
  }

然后在你的SkeletonFrameReady

中

private void SkeletonFrameReady(object sender, SkeletonFrameReadyEventArgs e)
        {
            Skeleton[] skeletons = new Skeleton[0];

            using (SkeletonFrame skeletonFrame = e.OpenSkeletonFrame())
            {
                if (skeletonFrame != null && this.skeletonData != null)
                {
                    skeletons = new Skeleton[skeletonFrame.SkeletonArrayLength];

                    // Set skeleton datas from skeletonFrame
                    skeletonFrame.CopySkeletonDataTo(this.skeletonData);

                    TrackClosestSkeleton();
                }
            }
                //Do some stuff here
        }

Answer 2

我遇到了同样的问题通过使用下面的代码我只跟踪了一个更接近传感器的骨架。并直接将最接近的骨架分配给主骨架流。

 private void SensorSkeletonFrameReady(object sender, SkeletonFrameReadyEventArgs skeletonFrameReadyEventArgs)
    {
        Skeleton[] skeletons = new Skeleton[0];

        using (SkeletonFrame skeletonFrame = skeletonFrameReadyEventArgs.OpenSkeletonFrame())
        {
            if (skeletonFrame != null && this.skeletons != null)
            {
               //Console.WriteLine(skeletonFrame.SkeletonArrayLength);
                skeletons = new Skeleton[skeletonFrame.SkeletonArrayLength];

                // Set skeleton datas from skeletonFrame
                skeletonFrame.CopySkeletonDataTo(this.skeletons);

                TrackClosestSkeleton();
                Skeleton[] singleSkeleton = new Skeleton[6];

                Skeleton skl=(from mno in this.skeletons where mno.TrackingState==SkeletonTrackingState.Tracked && mno.TrackingId==globalClosestID select mno).FirstOrDefault();
                if (skl == null)
                    return;

                //Creating an empty skkeleton
                Skeleton emptySkeleton = new Skeleton();

                singleSkeleton[0] = skl;        //Pass the Tracked skeleton with closestID
                singleSkeleton[1] = emptySkeleton;  //Passing Empty Skeleton
                singleSkeleton[2] = emptySkeleton;  //Passing Empty Skeleton
                singleSkeleton[3] = emptySkeleton;  //Passing Empty Skeleton
                singleSkeleton[4] = emptySkeleton;  //Passing Empty Skeleton
                singleSkeleton[5] = emptySkeleton;  //Passing Empty Skeleton

                this.snew.SkeletonStream.ChooseSkeletons(globalClosestID);
                var accelerometerReading = this.KinectSensor.AccelerometerGetCurrentReading();
                this.interactionStream.ProcessSkeleton(singleSkeleton, accelerometerReading, skeletonFrame.Timestamp);

            }
        }
    }

int globalClosestID = 0;
    private void TrackClosestSkeleton()
    {
        if (this.snew != null && this.snew.SkeletonStream != null)
        {
            if (!this.snew.SkeletonStream.AppChoosesSkeletons)
            {
                this.snew.SkeletonStream.AppChoosesSkeletons = true; // Ensure AppChoosesSkeletons is set
            }

            float closestDistance = 10000f; // Start with a far enough distance
            int closestID = 0;

            foreach (Skeleton skeleton in this.skeletons.Where(s => s.TrackingState != SkeletonTrackingState.NotTracked))
            {
                if (skeleton.Position.Z < closestDistance)
                {
                    closestID = skeleton.TrackingId;
                    closestDistance = skeleton.Position.Z;
                }
            }

            if (closestID > 0)
            {
                this.snew.SkeletonStream.ChooseSkeletons(closestID); // Track this skeleton
                globalClosestID = closestID;
            }
        }
    }

检查上面的代码对我有用。它可能对你有帮助。重新认识的是Kinectsensor。