视频数据：深度数据采集（Depth Data）

深度数据是利用红外发射摄像头发射红外线，用红外接收摄像头接收红外线而形成的图像，在利用发射接收差来计算深度距离，从抓取的图像中我们可以看出，红外图像是有远近梯度的。

新建一个WPF项目，在窗体中添加一个Image控件，Name为img。

后台代码如下：

//Kinect对象
KinectSensor kinectsensor = null;
private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
    if (kinectsensor.Status == KinectStatus.Connected)
    {
        kinectsensor.Stop();//停止Kinect
    }
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
    foreach (KinectSensor ks in KinectSensor.KinectSensors)
    {
        if (ks.Status == KinectStatus.Connected)
        {
            kinectsensor = ks;
            //设置深度数据流采集参数
            kinectsensor.DepthStream.Enable(DepthImageFormat.Resolution640x480Fps30);
            //订阅深度数据流采集事件
            kinectsensor.DepthFrameReady += kinectsensor_DepthFrameReady;
            kinectsensor.Start();//启动Kinect
            this.Title = "Kinect开始工作……";
            return;
        }
    }
}
private DepthImagePixel[] depthPixels;//定义字节数组
private WriteableBitmap DepthBitmap;//定义位图
void kinectsensor_DepthFrameReady(object sender, DepthImageFrameReadyEventArgs e)
{
    using (DepthImageFrame depframe = e.OpenDepthImageFrame())
    {
        if (depframe != null)
        {
            //初始化字节数组
            depthPixels = new DepthImagePixel[kinectsensor.DepthStream.FramePixelDataLength];
            //把深度数据复制到数组中
            depframe.CopyDepthImagePixelDataTo(depthPixels);
            //实例化位图对象
            this.DepthBitmap = new WriteableBitmap(kinectsensor.DepthStream.FrameWidth, kinectsensor.DepthStream.FrameHeight, 96.0, 96.0, PixelFormats.Bgr32, null);
            //用字节数组数据绘位图
            this.DepthBitmap.WritePixels(new Int32Rect(0, 0, DepthBitmap.PixelWidth, DepthBitmap.PixelHeight), depthPixels, DepthBitmap.PixelWidth * sizeof(int), 0);
            //显示位图到图片控件上
            img.Source = DepthBitmap;
        }
    }
}

效果如下图：