我有一个用于 Kinect 的简单应用程序，但它似乎消耗了大量资源。它正常工作 1-2 分钟，然后滞后变得难以忍受。
这是我的配置：
英特尔酷睿 i3 CPU M330 2.13 GHz
4 GB 内存
ATI Radeon HD 4570
这是应用程序窗口的代码：
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
Loaded += MainWindow_Loaded;
}
void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
this.WindowState = System.Windows.WindowState.Maximized;
}
private void StopKinect(KinectSensor sensor)
{
if (sensor != null)
{
if (sensor.IsRunning)
{
//stop sensor
sensor.Stop();
//stop audio if not null
if (sensor.AudioSource != null)
{
sensor.AudioSource.Stop();
}
}
}
}
private void Window_Closing_1(object sender, System.ComponentModel.CancelEventArgs e)
{
StopKinect(Generics.GlobalKinectSensorChooser.Kinect);
}
}
这是主菜单（第一个屏幕）的代码：
public partial class MainMenu : Page
{
#region "Kinect"
private KinectSensorChooser sensorChooser;
#endregion
public MainMenu()
{
this.InitializeComponent();
if (Generics.GlobalKinectSensorChooser == null)
{
// initialize the sensor chooser and UI
this.sensorChooser = new KinectSensorChooser();
this.sensorChooser.KinectChanged += SensorChooserOnKinectChanged;
this.sensorChooserUi.KinectSensorChooser = this.sensorChooser;
this.sensorChooser.Start();
Generics.GlobalKinectSensorChooser = this.sensorChooser;
}
else
{ // initialize the sensor chooser and UI
this.sensorChooser = new KinectSensorChooser();
this.sensorChooser = Generics.GlobalKinectSensorChooser;
this.sensorChooser.KinectChanged += SensorChooserOnKinectChanged;
this.sensorChooserUi.KinectSensorChooser = sensorChooser;
}
// Bind the sensor chooser's current sensor to the KinectRegion
var regionSensorBinding = new Binding("Kinect") { Source = this.sensorChooser };
BindingOperations.SetBinding(this.kinectRegion, KinectRegion.KinectSensorProperty, regionSensorBinding);
}
private void SensorChooserOnKinectChanged(object sender, KinectChangedEventArgs args)
{
bool error = false;
if (args.OldSensor != null)
{
try
{
args.OldSensor.DepthStream.Range = DepthRange.Default;
args.OldSensor.SkeletonStream.EnableTrackingInNearRange = false;
args.OldSensor.DepthStream.Disable();
args.OldSensor.SkeletonStream.Disable();
args.OldSensor.ColorStream.Disable();
}
catch (InvalidOperationException)
{
// KinectSensor might enter an invalid state while enabling/disabling streams or stream features.
// E.g.: sensor might be abruptly unplugged.
error = true;
}
}
if (args.NewSensor != null)
{
try
{
args.NewSensor.DepthStream.Enable(DepthImageFormat.Resolution640x480Fps30);
args.NewSensor.ColorStream.Enable(ColorImageFormat.RgbResolution640x480Fps30);
args.NewSensor.SkeletonStream.Enable();
}
catch (InvalidOperationException)
{
error = true;
}
}
if (!error)
kinectRegion.KinectSensor = args.NewSensor;
}
private void Screen1ButtonOnClick(object sender, RoutedEventArgs e)
{
this.sensorChooser.KinectChanged -= SensorChooserOnKinectChanged;
(Application.Current.MainWindow.FindName("_mainFrame") as Frame).Source = new Uri("Depth.xaml", UriKind.Relative);
}
}
而screen1的这段代码：
public partial class Depth : Page
{
#region "Kinect"
private KinectSensorChooser sensorChooser;
#endregion
const float MaxDepthDistance = 4095; // max value returned
const float MinDepthDistance = 850; // min value returned
const float MaxDepthDistanceOffset = MaxDepthDistance - MinDepthDistance;
public Depth()
{
this.InitializeComponent();
// initialize the sensor chooser and UI
this.sensorChooser = new KinectSensorChooser();
//Assign the sensor chooser with the sensor chooser from the mainwindow.
//We are reusing the sensorchoosing declared in the first window that can in contact with kinect
this.sensorChooser = Generics.GlobalKinectSensorChooser;
//subscribe to the sensorChooserOnKinectChanged event
this.sensorChooser.KinectChanged += SensorChooserOnKinectChanged;
//Assign Kinect Sensorchooser to the sensorchooser we got from our static class
this.sensorChooserUi.KinectSensorChooser = sensorChooser;
// Bind the sensor chooser's current sensor to the KinectRegion
var regionSensorBinding = new Binding("Kinect") { Source = this.sensorChooser };
BindingOperations.SetBinding(this.kinectRegion, KinectRegion.KinectSensorProperty, regionSensorBinding);
}
private void SensorChooserOnKinectChanged(object sender, KinectChangedEventArgs args)
{
bool error = false;
if (args.OldSensor != null)
{
try
{
args.OldSensor.DepthStream.Range = DepthRange.Default;
args.OldSensor.SkeletonStream.EnableTrackingInNearRange = false;
args.OldSensor.DepthStream.Disable();
args.OldSensor.SkeletonStream.Disable();
args.OldSensor.ColorStream.Disable();
}
catch (InvalidOperationException)
{
error = true;
}
}
if (args.NewSensor != null)
{
try
{
args.NewSensor.DepthStream.Enable(DepthImageFormat.Resolution640x480Fps30);
args.NewSensor.ColorStream.Enable(ColorImageFormat.RgbResolution640x480Fps30);
args.NewSensor.SkeletonStream.Enable();
}
catch (InvalidOperationException)
{
error = true;
}
}
if (!error)
kinectRegion.KinectSensor = args.NewSensor;
}
private void MenuButtonOnClick(object sender, RoutedEventArgs e)
{
//Unsubscribe to the sensorchooser's event SensorChooseronkinectChanged
this.sensorChooser.KinectChanged -= SensorChooserOnKinectChanged;
(Application.Current.MainWindow.FindName("_mainFrame") as Frame).Source = new Uri("MainScreen.xaml", UriKind.Relative);
}
}
还有几个屏幕，我选择了这个屏幕，我在 WpfViewers 中使用 KinectDepthViewer。这个屏幕有最严重的延迟，应用程序几乎立即无法使用。我只有按钮的其他屏幕在开始时没有延迟，但在使用 2-3 分钟后就会出现延迟。
我不知道我在初始化时做错了什么。我希望有人给一些建议。我读到人们在更弱的配置上的开发没有问题，所以我希望不是因为这个。
谢谢！