kinect数据获取fps>30

Question

我正在尝试 Get and Display Depth Data in C# 并计算 kinect 深度采集的 fps。

To calculate fps for depth implemented a datetime

  if (this.sensor != null)
  {
      this.sensor.DepthFrameReady += this.DepthImageReady;
  }

  private void DepthImageReady(object sender, DepthImageFrameReadyEventArgs e)
  {
     DateTime before = DateTime.Now;
      using (DepthImageFrame depthFrame = e.OpenDepthImageFrame())
      {
          if (depthFrame != null)
          {
              depthFrame.CopyDepthImagePixelDataTo(this.depthPixels);
          }
          else
          {
              // depthFrame is null because the request did not arrive in time
          }
      }
     DateTime after = DateTime.Now;
     TimeSpan result = after.Subtract(before);
        float seconds = (float)result.TotalSeconds;
        this.Text = "Kinect (" + (1 / seconds) + "fps)";

  }

我有时会获得 >60 fps 和令人难以置信的无穷大

虽然 kinect 提供 30 fps 为什么我会变得无穷大，我在做什么错？

Answer 1

您必须测量每次函数调用之间的时间间隔，而不是函数执行所需的时间。像这样：

static DateTime lastFrame = DateTime.Now;
private void DepthImageReady(object sender, DepthImageFrameReadyEventArgs e)
{
    using (DepthImageFrame depthFrame = e.OpenDepthImageFrame())
    {
        if (depthFrame != null)
        {
            depthFrame.CopyDepthImagePixelDataTo(this.depthPixels);
        }
        else
        {
            // depthFrame is null because the request did not arrive in time
        }
    }
    var now = DateTime.Now;
    TimeSpan result = now.Subtract(lastFrame);
    lastFrame = now;
    var milliseconds = result.TotalMilliseconds;

    this.Text = "Kinect (" + (1000.0 / milliseconds) + "fps)";
}

kinect数据获取fps>30

kinect data acquiring fps>30

c#

frame-rate

kinect