[Kinect&Emgu]拉数据方式(延时)获得图像的方法

2016-12-16 18:58:33来源:CSDN作者:cvMat人点击

[Kinect&Emgu]拉数据方式(延时)获得图像的方法、 对[封装1]和[封装2]简单应用、在拉数据模式下,对WriteableBitmap写入数据,需要采用this.ShowImage.Dispatcher.BeginInvoke方法,否则无法写入数据

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Windows;using System.Windows.Controls;using System.Windows.Data;using System.Windows.Documents;using System.Windows.Input;using System.Windows.Media;using System.Windows.Media.Imaging;using System.Windows.Navigation;using System.Windows.Shapes;using Microsoft.Kinect;using System.Runtime.InteropServices;using System.ComponentModel;using Emgu.CV;using Emgu.CV.CvEnum;using Emgu.CV.Structure;using Emgu.Util;using ImageManipulationExtensionMethods;/*******本示例包括一下信息*******///采用拉数据方法获得数据,类似延时。//在拉数据模式下,对WriteableBitmap写入数据,需要采用this.ShowImage.Dispatcher.BeginInvoke方法,否则无法写入数据。//命名空间ImageManipulationExtensionMethods下ToOpenCVImage()简单应用。//单帧图像获取方法/*******需要引入的命名空间*******///using Microsoft.Kinect;//using System.Runtime.InteropServices;//using System.ComponentModel;//using Emgu.CV;//using Emgu.CV.CvEnum;//using Emgu.CV.Structure;//using Emgu.Util;//using ImageManipulationExtensionMethods;namespace WpfApplication11{    /// <summary>    /// MainWindow.xaml 的交互逻辑    /// </summary>    public partial class MainWindow : Window    {        KinectSensor kinectSensor;        /**************************************************************************************/        private WriteableBitmap colorImageBitMap;        private Int32Rect colorImageBitmapRect;        private int colorImageStride;        /**************************************************************************************/        ColorImageFrame colorFrame;        byte[] ColorPixelData;        //初始化Kinect直接调用InitKinect()即可;注册的同步事件为AllFramesReadyEventArgs        /// <summary>        /// 启动Kinect设备,初始化选项,并注册AllFrameReady同步事件        /// </summary>        /// <param></param>        /// <param></param>        private void InitKinect()        {            if (KinectSensor.KinectSensors.Count > 0)            {                kinectSensor = (from sensor in KinectSensor.KinectSensors                                where sensor.Status == KinectStatus.Connected                                select sensor).FirstOrDefault();                kinectSensor.ColorStream.Enable(ColorImageFormat.RgbResolution640x480Fps30);                kinectSensor.DepthStream.Enable(DepthImageFormat.Resolution640x480Fps30);                kinectSensor.SkeletonStream.Enable();                /**************************************************************************************/                //创建WriteableBitmap对象,准备接收像素数据                ColorImageStream colorStream = kinectSensor.ColorStream;                this.colorImageBitMap = new WriteableBitmap(colorStream.FrameWidth,                    colorStream.FrameHeight, 96, 96, PixelFormats.Bgr32, null);                this.colorImageBitmapRect = new Int32Rect(0, 0, colorStream.FrameWidth,                    colorStream.FrameHeight);                this.colorImageStride = colorStream.FrameWidth * colorStream.FrameBytesPerPixel;                ShowImage.Source = this.colorImageBitMap;                /**************************************************************************************/                kinectSensor.Start();                /**************************************************************************************/                BackgroundWorker bw = new BackgroundWorker();                //Lambda表达式用'=>'运算符表明什么参数传递给表达式。                //编译器进一步处理,允许我们忽略类型并自动替我们推断这些类型。                //如果你有2个或更多个参数,你需要用圆括号:(x,y)=>。如果只有一个,直接设置:x=>                bw.DoWork += (a, b) => Pulse();                bw.RunWorkerCompleted += (c, d) => bw.RunWorkerAsync();                bw.RunWorkerAsync();                /**************************************************************************************/            }            else            {                MessageBox.Show("没有检测到Kinect设备");            }        }        public MainWindow()        {            InitializeComponent();            this.Unloaded += delegate            {                kinectSensor.ColorStream.Disable();            };            this.Loaded += delegate            {                InitKinect();            };        }        /**************************************************************************************/        private void Pulse()        {            /**************************************************************************************/            //OpenNextFrame(200),这里的200以毫秒为单位,帧采集的间隔            //类似通过延时的方法采集数据。            using (colorFrame = kinectSensor.ColorStream.OpenNextFrame(200))            {            /**************************************************************************************/                if (colorFrame == null)                    return;                /**************************************************************************************/                //这里的ToOpenCVImage就是调用的命名空间ImageManipulationExtensionMethods中的方法                using (Image<Bgr, byte> image = colorFrame.ToOpenCVImage<Bgr, byte>())                {                /**************************************************************************************/                    //建立存储像素的矩阵,一维矩阵                    //colorFrame.PixelDataLength每一帧的数据长度                    ColorPixelData = new byte[colorFrame.PixelDataLength];                    //将Kicent获取的彩色像素拷贝存储像素的矩阵中                    colorFrame.CopyPixelDataTo(ColorPixelData);                    /**************************************************************************************/                    //显示图像,ShowImage为Image控件                    //使用拉模式采集数据,如果要显示到Image控件上,必须使用 this.ShowImage.Dispatcher.BeginInvoke方法                    this.ShowImage.Dispatcher.BeginInvoke(new Action(() =>                    {this.colorImageBitMap.WritePixels(this.colorImageBitmapRect, ColorPixelData, this.colorImageStride, 0);}));                    /**************************************************************************************/                }            }        }        /**************************************************************************************/        private void Button_Click(object sender, System.Windows.RoutedEventArgs e)        {            this.ShotImage.Source = BitmapSource.Create(colorFrame.Width, colorFrame.Height, 96, 96,                           PixelFormats.Bgr32, null, ColorPixelData, colorFrame.Width * colorFrame.BytesPerPixel);        }    }}

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