使用Kinect SDK 1.8不跟踪Kinect手关节的原因

Question

我已经在这方面做了很长一段时间了，我找不到为什么(大多数时候) HandJoint没有被跟踪。代码被调整以避免出现这种情况(这就是为什么所有的空值和空号都在那里)。我在Kinect SDKV1.8中使用了C#。

我以前从来没有在这里贴过，所以所有的评论都被接受了。

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using Microsoft.Kinect;
 using System.Windows;

 namespace Arcade_Kinect.Kinect
 {
    class KinectAddons
    {
    public KinectSensor kinect;
    public Point? punto;
    public JointType hand;

    public KinectAddons(bool leftHanded, KinectSensor sensor)
    {
        this.kinect = sensor;
        if (kinect != null)
        {
            kinect.SkeletonFrameReady += new EventHandler<SkeletonFrameReadyEventArgs>(kinect_SkeletonFrameReady);
            kinect.Start();
            try
            {
                kinect.DepthStream.Enable(DepthImageFormat.Resolution640x480Fps30);
                kinect.SkeletonStream.Enable();
                try
                {
                    kinect.DepthStream.Range = DepthRange.Near;
                    kinect.SkeletonStream.EnableTrackingInNearRange = true;
                }
                catch (InvalidOperationException)
                {

                    kinect.DepthStream.Range = DepthRange.Default;
                    kinect.SkeletonStream.EnableTrackingInNearRange = false;
                }
            }
            catch (InvalidOperationException) { }
        }
        if (leftHanded)
            this.hand = JointType.HandLeft;
        else
            this.hand = JointType.HandRight;

    }

    void kinect_SkeletonFrameReady(object sender, SkeletonFrameReadyEventArgs e)
    {
        Skeleton[] skeleton = new Skeleton[0];

        using (SkeletonFrame sf = e.OpenSkeletonFrame())
        {
            if (sf != null)
            {
                skeleton = new Skeleton[sf.SkeletonArrayLength];
                sf.CopySkeletonDataTo(skeleton);
                punto = returnPosFromHand(skeleton[0]);
            }
        }
    }

    //saves x and y of the hand
    public Point? returnPosFromHand(Skeleton sk)
    {
        DepthImagePoint depthPoint = new DepthImagePoint();
        bool notWorking = true;
        try
        {
            if (sk.Joints[this.hand].TrackingState == JointTrackingState.Tracked)
            {
                notWorking = false;
                depthPoint = this.kinect.CoordinateMapper.MapSkeletonPointToDepthPoint(sk.Joints[this.hand].Position, DepthImageFormat.Resolution640x480Fps30);
            }
        }
        catch (IndexOutOfRangeException)
        {
            System.Console.WriteLine("Hand capture was lost" + this.hand.ToString());
        }
        catch (Exception e)
        {
            MessageBox.Show(e.Message);
        }
        if (notWorking)
            return null;
        return new Point(depthPoint.X, depthPoint.Y);
    }

        //returns last know value
        public double? readNext()
        {
            if (this.punto.HasValue)
                return punto.Value.X;
            return null;
        }
    }
}

Answer 1

问题

你的问题是从SkeletonFrame获取你的骨骼

SkeletonFrame.OpenSkeletonFrame()总是用X对象返回数组.被跟踪的人不一定是数组中的第一个骨架。

所以你有时候会跟踪你的手。有时，跟踪的骨架是列表中的第一个(returnPosFromHand(skeleton[0]);)。

溶液

遍历框架数组，检查跟踪哪个骨架并使用该框架。你可以按Z-索引排序，也可以用传感器选择最近的一个.然后把这个骨架传递给你的函数。