1.在WPF界面上添加的控件
<StackPanel Orientation="Horizontal">
<Image x:Name="DepthImage" MouseLeftButtonUp="DepthImage_MouseLeftButtonUp" Width="512" Height="424"/>
<TextBlock x:Name="PixelDepth" FontSize="48" HorizontalAlignment="Right"/>
</StackPanel>
2.后台代码如下：
private KinectSensor sensor;
private DepthFrameReader depthReader;
private FrameDescription depthDescription;
private WriteableBitmap depthBitmap;
private Int32Rect depthRect;
private int depthStride;
ushort[] pixelData;
public MainWindow()
{
InitializeComponent();
sensor = KinectSensor.GetDefault();
depthReader = sensor.DepthFrameSource.OpenReader();
depthReader.FrameArrived += depthFrame_FrameArrived;
depthDescription = sensor.DepthFrameSource.FrameDescription;
//位图初始化，宽度，高度，96.0表示分辨率，像素格式
depthBitmap = new WriteableBitmap(depthDescription.Width, depthDescription.Height, 96.0, 96.0, PixelFormats.Gray16, null);
//存放图像像素的矩形框
depthRect = new Int32Rect(0, 0, depthBitmap.PixelWidth, depthBitmap.PixelHeight);
//存放深度图像的字节数组的长度=帧长度*帧高度
pixelData = new ushort[depthDescription.LengthInPixels];
//步长：宽度*2(字节/像素)
depthStride = depthDescription.Width * 2;
DepthImage.Source = depthBitmap;
sensor.Open();
}
private void depthFrame_FrameArrived(object sender, DepthFrameArrivedEventArgs e)
{
using (DepthFrame depthFrame = e.FrameReference.AcquireFrame())
{
if (depthFrame != null)
{
depthFrame.CopyFrameDataToArray(pixelData);
depthBitmap.WritePixels(depthRect, pixelData, depthStride, 0);
}
}
}
private void DepthImage_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
Point p = e.GetPosition(DepthImage);
if (pixelData != null && pixelData.Length > 0)
{
//计算出是第多少个像素点
Int32 pixelIndex = (Int32)(p.X + ((Int32)p.Y * depthDescription.Width));
Int32 depth = pixelData[pixelIndex] >> 3; //前三位是游戏者索引，向右移3位，剩下的才是深度值
Int32 depthInches = (Int32)(depth * 0.0393700787);
Int32 depthFt = depthInches / 12;
depthInches = depthInches % 12;
//官方给出的能测深度范围为：0.5-4.5m
PixelDepth.Text = String.Format("\n深度为：{0}mm~{1}'{2}\n坐标为：({3},{4})", depth, depthFt, depthInches,p.X,p.Y);
}
}
3.值得注意的是：
Image控制的大小最好固定好，防止鼠标点击事件的范围超出图像边界，而出现异常
4.运行结果如下：
