Kinect，警告：ImageFrame实例未配置

Question

我是Kinect的新手。我试图使用骨架跟踪，但我不断收到此警告“警告：一个ImageFrame实例没有处置。”。你知道任何解决方案吗？

这里是我的代码

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Windows; 
using System.Windows.Controls; 
using System.Windows.Data; 
using System.Windows.Documents; 
using System.Windows.Input; 
using System.Windows.Media; 
using System.Windows.Media.Imaging; 
using System.Windows.Navigation; 
using System.Windows.Shapes; 
using Microsoft.Kinect; 
using Coding4Fun.Kinect.Wpf; 
using System.Diagnostics; 
using System.IO; 

namespace KinectSkeleton 
{ 
    /// <summary> 
    /// Interaction logic for MainWindow.xaml 
    /// </summary> 
    public partial class MainWindow : Window 
    { 
     public MainWindow() 
     { 
      InitializeComponent(); 
     } 

     bool closing = false; 
     const int skeletonCount = 6; 
     Skeleton[] allSkeletons = new Skeleton[skeletonCount]; 

     private void Window_Loaded(object sender, RoutedEventArgs e) 
     { 
      myKinectSensorChooser.KinectSensorChanged += new DependencyPropertyChangedEventHandler(myKinectSensorChooser_KinectSensorChanged); 
     } 

     void myKinectSensorChooser_KinectSensorChanged(object sender, DependencyPropertyChangedEventArgs e) 
     { 
      KinectSensor oldSensor = (KinectSensor)e.OldValue; 
      if (oldSensor != null) 
      { 
       oldSensor.Stop(); 
       oldSensor.AudioSource.Stop(); 
      } 

      KinectSensor mySensor = (KinectSensor)e.NewValue; 
      if (mySensor == null) 
       return; 

      mySensor.DepthStream.Enable(DepthImageFormat.Resolution320x240Fps30); 
      mySensor.ColorStream.Enable(); 
      mySensor.SkeletonStream.Enable(); 
      mySensor.AllFramesReady += new EventHandler<AllFramesReadyEventArgs>(mySensor_AllFramesReady); 

      try 
      { 
       mySensor.Start(); 
       Debug.WriteLine("Starting Sensor ....."); 
       Debug.WriteLine("The Current Elevation Angle is: " + mySensor.ElevationAngle.ToString()); 
       mySensor.ElevationAngle = 0; 
      } 
      catch (System.IO.IOException) 
      { 
       //another app is using Kinect 
       myKinectSensorChooser.AppConflictOccurred(); 
      } 
     } 

     void mySensor_AllFramesReady(object sender, AllFramesReadyEventArgs e) 
     { 
      if (closing) 
       return; 

      byte[] depthImagePixels; 
      DepthImageFrame depthFrame = e.OpenDepthImageFrame(); 
      if (depthFrame == null) 
       return; 

      depthImagePixels = GenerateDepthImage(depthFrame); 
      int stride = depthFrame.Width*4; 
      image1.Source = 
       BitmapSource.Create(depthFrame.Width, depthFrame.Height, 
       96, 96, PixelFormats.Bgr32, null, depthImagePixels, stride); 


      //Get a skeleton 
      Skeleton first = GetFirstSkeleton(e); 
      if (first == null) 
       return; 

      Debug.WriteLine("Head Position is : " + first.Joints[JointType.Head].ToString()); 

      depthFrame.Dispose(); 

     } 

     private byte[] GenerateDepthImage(DepthImageFrame depthFrame) 
     { 
      //get the raw data from the frame with the depth for every pixel 
      short[] rawDepthData = new short[depthFrame.PixelDataLength]; 
      depthFrame.CopyPixelDataTo(rawDepthData); 

      //use frame to create the image to display on-screen 
      //frame contains color information for all pixels in image 
      //Height x Width x 4 (Red, Green, Blue, empty byte) 
      Byte[] pixels = new byte[depthFrame.Height * depthFrame.Width * 4]; 

      //hardcoded locations to Blue, Green, Red (BGR) index positions  
      const int BlueIndex = 0; 
      const int GreenIndex = 1; 
      const int RedIndex = 2; 
      int player, depth; 

      //loop through all distances 
      //pick a RGB color based on distance 
      for (int depthIndex = 0, colorIndex = 0; 
       depthIndex < rawDepthData.Length && colorIndex < pixels.Length; 
       depthIndex++, colorIndex += 4) 
      { 
       //get the player (requires skeleton tracking enabled for values) 
       player = rawDepthData[depthIndex] & DepthImageFrame.PlayerIndexBitmask; 

       //gets the depth value 
       depth = rawDepthData[depthIndex] >> DepthImageFrame.PlayerIndexBitmaskWidth; 

       if (player > 0) 
       { 
        pixels[colorIndex + BlueIndex] = Colors.Gold.B; 
        pixels[colorIndex + GreenIndex] = Colors.Gold.G; 
        pixels[colorIndex + RedIndex] = Colors.Gold.R; 
       } 
       else 
       { 
        pixels[colorIndex + BlueIndex] = Colors.Green.B; 
        pixels[colorIndex + GreenIndex] = Colors.Green.G; 
        pixels[colorIndex + RedIndex] = Colors.Green.R; 
       } 
      } 
      //depthFrame.Dispose(); 
      return pixels; 
     } 

     Skeleton GetFirstSkeleton(AllFramesReadyEventArgs e) 
     { 
      using (SkeletonFrame skeletonFrameData = e.OpenSkeletonFrame()) 
      { 
       if (skeletonFrameData == null) 
       { 
        return null; 
       } 
       skeletonFrameData.CopySkeletonDataTo(allSkeletons); 

       //get the first tracked skeleton 
       Skeleton first = (from s in allSkeletons 
            where s.TrackingState == SkeletonTrackingState.Tracked 
            select s).FirstOrDefault(); 

       return first; 
      } 
     } 

     void StopKinect(KinectSensor sensor) 
     { 
      if (sensor != null) 
      { 
       if (sensor.IsRunning) 
       { 
        sensor.ElevationAngle = 0; 
        sensor.Stop(); 
        if (sensor.AudioSource != null) 
        { 
         sensor.AudioSource.Stop(); 
        } 
       } 
      } 
     } 
     private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e) 
     { 
      closing = true; 
      Debug.WriteLine("Closing window..."); 
      StopKinect(myKinectSensorChooser.Kinect); 
     } 
    } 
} 

非常感谢， 迈克尔

的方法mySensor_AllFramesReady你使用块，而开放的深度框架如下写道

 //Get a skeleton 
     Skeleton first = GetFirstSkeleton(e); 
     if (first == null) 
      return; // Here if first skeleton is null then you are returning without disposing depthFrame frame. 

使用

Answer 1

using(DepthImageFrame depthFrame = e.OpenDepthImageFrame()) 
    { 
     if (depthFrame == null) 
      return; 

     depthImagePixels = GenerateDepthImage(depthFrame); 
     int stride = depthFrame.Width*4; 
     image1.Source = 
      BitmapSource.Create(depthFrame.Width, depthFrame.Height, 
      96, 96, PixelFormats.Bgr32, null, depthImagePixels, stride); 


     //Get a skeleton 
     Skeleton first = GetFirstSkeleton(e); 
     if (first == null) 
      return; 

     Debug.WriteLine("Head Position is : " + first.Joints[JointType.Head].ToString()); 
    }