美好的一天嗯。
我正在做一个 C# 项目，我们使用 Microsoft Kinect，用它来跟踪执行一系列跳跃的人，并获取生成的骨架以计算膝盖角度。
昨晚当我们测试科目时，我认为最好控制程序，您可以单击并结束“当前”测试科目的输出文件，然后开始另一个科目。为了开始跟踪骨架，我们创建了 Kinect for Windows SDK 中的 Tracker 类的跟踪器对象。然后，这将启动执行跟踪和输出的所有逻辑。但是，当我们“关闭”第一个主题的输出时，我们似乎只是在关闭文件，而不是跟踪器对象的实际实例。这会导致跟踪器保持“打开”状态，与我们为新测试对象创建的跟踪器对象的新实例并存，使用双倍的计算资源并导致性能下降到无法接受的程度。
如何“关闭”跟踪器对象的第一个实例？
如果你们需要检查代码，请告诉我；我没有包括它，因为在这里发帖太长了。
编辑：
这里至少有一些代码。我们有“开始”事件（针对第一个测试对象）、“下一个对象”事件（针对后续测试对象）和“跟踪器”代码。
下一个主题：（这是我们需要进行更改的地方）
/// <summary>
/// stops "old" file and graph streams, closes file, launches dialog for new subject and starts
/// stream up again
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonNextSubject_Click(object sender, RoutedEventArgs e)
{
//Ask the user if they're sure they want to stop the current stream
if (MessageBox.Show("Are you sure you want to stop the stream and start a new one?", "New Subject", MessageBoxButton.OKCancel) == MessageBoxResult.OK){
if (fileCheck == true)
{
tracker.outputFile.closeFiles();
//SHUT DOWN OLD TRACKER HERE
}
else
{
return;
}
}
Microsoft.Win32.SaveFileDialog dlg = new Microsoft.Win32.SaveFileDialog();
dlg.FileName = "Subject"; //Default file name
dlg.DefaultExt = ".txt"; //Default file extension
dlg.Filter = "Text documents (.txt)|*.txt"; //Filter files by extension
//Show save file dialog box
Nullable<bool> result = dlg.ShowDialog();
buttonStart.IsEnabled = false;
buttonPause.IsEnabled = true;
buttonResume.IsEnabled = false;
fileCheck = true;
//Start Kinect- If no sensor, ask to connect one and exit.
try
{
this.sensor.Start();
}
catch (IOException)
{
this.sensor = null;
//display error message here
MessageBox.Show("No Kinect sensor found. Please connect one and restart the application", "*****ERROR*****");
}
sensor.ElevationAngle = 0;
tracker = new Tracker(sensor, this, dlg.FileName);
}
}
跟踪器对象/跟踪器类：
internal class Tracker{
private Skeleton[] skeletons = null;
private MainWindow window;
public Class1 outputFile;
public string fn;
public Tracker(KinectSensor sensor, MainWindow win, string fileName){
//Connect the skeleton frame handler and enable skeleton tracking
sensor.SkeletonFrameReady += SensorSkeletonFrameReady;
sensor.SkeletonStream.Enable();
sensor.ColorFrameReady += SensorColorFrameReady;
sensor.ColorStream.Enable();
window = win;
outputFile = new Class1(fileName);
fn = fileName;
window.graphTickPen2.DashStyle = System.Windows.Media.DashStyles.Dash;
}
最后，我基于“下一个主题”事件的“开始”事件：
private void buttonStart_Click(object sender, RoutedEventArgs e){
// Configure save file dialog box
Microsoft.Win32.SaveFileDialog dlg = new Microsoft.Win32.SaveFileDialog();
dlg.FileName = "Default"; // Default file name
dlg.DefaultExt = ".txt"; // Default file extension
dlg.Filter = "Text documents (.txt)|*.txt"; // Filter files by extension
// Show save file dialog box
Nullable<bool> result = dlg.ShowDialog();
buttonStart.IsEnabled = false;
buttonPause.IsEnabled = true;
buttonResume.IsEnabled = false;
fileCheck = true;
//Create drawing group
this.drawingGroup = new DrawingGroup();
this.leftLegDrawingGroup = new DrawingGroup();
this.rightLegDrawingGroup = new DrawingGroup();
//Create image source for WPF control
this.imageSource = new DrawingImage(this.drawingGroup);
this.leftLegBoxImageSource = new DrawingImage(this.leftLegDrawingGroup);
this.rightLegBoxImageSource = new DrawingImage(this.rightLegDrawingGroup);
leftLegColorBitmap = new WriteableBitmap(483, 152, 96, 96, PixelFormats.Bgr32, null);
rightLegColorBitmap = new WriteableBitmap(483, 152, 96, 96, PixelFormats.Bgr32, null);
colorBitmap = new WriteableBitmap(640, 480, 96, 96, PixelFormats.Bgr32, null);
colorPixels = new byte[this.sensor.ColorStream.FramePixelDataLength];
//Start Kinect- If no sensor, ask to connect one and exit.
try{
this.sensor.Start();
}
catch (IOException){
this.sensor = null;
//display error message here
MessageBox.Show("No Kinect sensor found. Please connect one and restart the application", "*****ERROR*****");
}
sensor.ElevationAngle = 0;
tracker = new Tracker(sensor, this, dlg.FileName);
}