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演示程序界面
源代码
MainWindow.xaml.cs
/* ----------------------------------------------------------
* 文件名称：MainWindow.xaml.cs
*
* 作者：秦建辉
*
* 微信：splashcn
*
* 博客：http://www.firstsolver.com/wordpress/
*
* 开发环境：
* Visual Studio V2017
* .NET Framework 4 Client Profile
* Baidu.AI 3.3.0.29135
*
* 版本历史：
* V1.0 2018年01月18日
* 百度AI 人脸比对演示示例
------------------------------------------------------------ */
using AForge.Video.DirectShow;
using Baidu.Aip.Face;
using Com.FirstSolver.CR;
using Com.FirstSolver.Splash;
using System;
using System.Collections.Generic;
using System.Threading;
using System.Windows;
using System.Windows.Media.Imaging;
namespace FaceMatch
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
/// <summary>
/// 核验通过
/// </summary>
private BitmapSource ImagePass;
/// <summary>
/// 核验失败
/// </summary>
private BitmapSource ImageDeny;
private Face Client;
private Dictionary<string, object> options = new Dictionary<string, object> {
{ "image_liveness", ",faceliveness"}, // 第一张图为证件照，不做活体检测；第二张图为视频照片，做活体检测
{ "types", "13,7"}
};
private byte[][] ImageCollection = new byte[2][]; // 锯齿数组
/// <summary>
/// 身份证读卡器
/// </summary>
private IDCardReader CardReader = null;
/// <summary>
/// 身份证读卡器同步事件
/// </summary>
private ManualResetEvent CardReaderSyncEvent = new ManualResetEvent(true);
private volatile bool ShouldStop = true;
private ManualResetEvent StartFaceMatchEvent = new ManualResetEvent(false);
/// <summary>
/// 人证比对通过阈值
/// </summary>
private double MatchThreshold = 70.0;
/// <summary>
/// 单帧活体阈值
/// </summary>
private double LivenessThreshold = 0.393241;
public MainWindow()
{
InitializeComponent();
// 核验通过图片
ImagePass = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
Properties.Resources.pass.GetHbitmap(),
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
// 核验拒绝图片
ImageDeny = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(
Properties.Resources.deny.GetHbitmap(),
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
InitializeMatch();
// 初始化摄像头
InitializeCamera();
// 初始化读卡设备
InitializeCardReader();
}
private void Window_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
CloseMatch();
CloseCamera(); // 关闭摄像头
CloseCardReader(); // 关闭读卡设备
}
private void InitializeMatch()
{
string API_KEY = "你的 Api Key";
string SECRET_KEY = "你的 Secret Key";
Client = new Face(API_KEY, SECRET_KEY);
ThreadPool.QueueUserWorkItem(FaceMacthHandler);
}
private void CloseMatch()
{
ShouldStop = true;
StartFaceMatchEvent.Set();
}
// 初始化摄像头
private void InitializeCamera()
{
CloseCamera(); // 关闭摄像头
// 设定初始视频设备
FilterInfoCollection VideoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice);
if (VideoDevices.Count > 0)
{
VSP.VideoSource = new VideoCaptureDevice(VideoDevices[0].MonikerString);
VSP.Start();
}
else
{
MessageBoxPlus.Show(this, "未发现摄像头！", "摄像头错误", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
// 关闭摄像头
private void CloseCamera()
{
if (VSP.VideoSource != null && VSP.IsRunning)
{ // 停止视频
VSP.SignalToStop();
VSP.WaitForStop();
}
}
// 初始化读卡器
private void InitializeCardReader()
{
CloseCardReader(); // 关闭读卡器
try
{
CardReader = new YAReader() { ExternalSyncEvent = CardReaderSyncEvent };
CardReader.OnReadCardCompleted += ReadCardCompletedHandler; // 事件处理器
if (CardReader.Start(IDCardBiometrics.Photo) == -1)
{
MessageBoxPlus.Show(this.Owner, "开启身份证扫描服务失败！", "读卡器错误", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
catch (Exception exception)
{
MessageBoxPlus.Show(this, exception.Message, "读卡器错误", MessageBoxButton.OK, MessageBoxImage.Error);
return;
}
}
// 停止身份证扫描服务
private void CloseCardReader()
{
if (CardReader != null) { CardReader.Close(); CardReader = null; }
}
// 刷身份证处理器
private void ReadCardCompletedHandler(object sender, ReadCardCompletedEventArgs e)
{
if (e == null || e.Photo == null) return;
this.Dispatcher.BeginInvoke(new Action(() =>
{ // 清除结果
ImageVideo.Source = null;
ImageAnswer.Source = null;
TextBlockScore.Text = string.Empty;
// 显示身份证信息
TextBlockName.Text = e.Name; // 姓名
TextBlockGender.Text = e.Gender; // 性别
TextBlockNationality.Text = e.EthnicName; // 民族
TextBlockBirth.Text = e.Birth; // 出生
TextBlockSN.Text = e.IDC; // 身份证号码
TextBlockAddress.Text = e.Address; // 地址
ImageCollection[0] = e.Photo;
this.Dispatcher.Invoke(new Action(() => {
ImagePhoto.Source = e.Photo.ToBitmapImage();
}));
ShouldStop = false;
StartFaceMatchEvent.Set();
}));
}
private void FaceMacthHandler(object state)
{
while (true)
{
StartFaceMatchEvent.WaitOne();
if (ShouldStop) break;
using (System.Drawing.Bitmap bmp = VSP.GetCurrentVideoFrame())
{
ImageCollection[1] = bmp.ToByteArray();
var result = Client.Match(ImageCollection, options);
var error_code = result["error_code"];
if (error_code != null)
{
MessageBoxPlus.Show(this, result["error_msg"].ToString(), "错误", MessageBoxButton.OK, MessageBoxImage.Warning);
StartFaceMatchEvent.Reset();
}
else if ((int)result["result_num"] == 1)
{ // 验证活体
if (double.Parse(result["ext_info"]["faceliveness"].ToString().Split(new char[] { ',' })[1]) > LivenessThreshold)
{
foreach (dynamic item in result["result"])
{
this.Dispatcher.Invoke(new Action(() => {
ImageVideo.Source = bmp.ToBitmapImage();
double Score = (double)item["score"];
ImageAnswer.Source = (Score >= MatchThreshold) ? ImagePass : ImageDeny;
TextBlockScore.Text = Score.ToString();
}));
CardReaderSyncEvent.Set(); // 开启新的读卡信号
StartFaceMatchEvent.Reset(); // 等待新的人脸匹配信号
}
}
}
}
}
}
}
}
MainWindow.xaml
<Window x:Class="FaceMatch.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:controls="clr-namespace:AForge.Controls;assembly=AForge.Controls"
Title="百度AI 人脸比对演示示例" WindowStartupLocation="CenterScreen" FontSize="16" Icon="FR.ico" SizeToContent="WidthAndHeight" Loaded="Window_Loaded" Closing="Window_Closing">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="946"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<WindowsFormsHost Grid.Column="0" Margin="4" Width="730" Height="534">
<controls:VideoSourcePlayer x:Name="VSP"/>
</WindowsFormsHost>
<Grid Grid.Column="1">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<GroupBox Grid.Row="0" Margin="4">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Border Grid.Row="0" Grid.Column="0" BorderThickness="1" Margin="4" BorderBrush="LightGray" Width="142" Height="166">
<Image Name="ImageVideo" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
<Border Grid.Row="0" Grid.Column="1" BorderThickness="1" Margin="4" BorderBrush="LightGray" Width="142" Height="166">
<Image Name="ImagePhoto" HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
<Label Content="实时照" Grid.Row="1" Grid.Column="0" HorizontalAlignment="Center" VerticalAlignment="Center" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" Foreground="#666666"/>
<Label Content="证件照" Grid.Row="1" Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Center" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" Foreground="#666666"/>
</Grid>
</GroupBox>
<GroupBox Grid.Row="1" Margin="4">
<Grid>
<Grid.RowDefinitions>
<RowDefinition/>
<RowDefinition/>
</Grid.RowDefinitions>
<Image Name="ImageAnswer" Grid.Row="0" Width="128" Height="128"/>
<Grid Grid.Row="1">
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Label Grid.Column="0" Content="相似度：" HorizontalContentAlignment="Right" VerticalContentAlignment="Center" FontSize="22" Foreground="#333333"/>
<TextBlock Name="TextBlockScore" Grid.Column="1" VerticalAlignment="Center" FontSize="22" Foreground="#333333"/>
</Grid>
</Grid>
</GroupBox>
<GroupBox Grid.Row="2" Margin="4">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Label Grid.Row="0" Grid.Column="0" Content="姓名" Foreground="#555555"/>
<Label Grid.Row="0" Grid.Column="2" Content="性别" Foreground="#555555"/>
<Label Grid.Row="1" Grid.Column="0" Content="民族" Foreground="#555555"/>
<Label Grid.Row="1" Grid.Column="2" Content="出生" Foreground="#555555"/>
<Label Grid.Row="2" Grid.Column="0" Content="证件号" Foreground="#555555"/>
<Label Grid.Row="3" Grid.Column="0" Content="地址" Foreground="#555555"/>
<TextBlock Name="TextBlockName" Grid.Row="0" Grid.Column="1" VerticalAlignment="Center" TextWrapping="Wrap" Foreground="#777777"/>
<TextBlock Name="TextBlockGender" Grid.Row="0" Grid.Column="3" VerticalAlignment="Center" TextWrapping="Wrap" Foreground="#777777"/>
<TextBlock Name="TextBlockNationality" Grid.Row="1" Grid.Column="1" VerticalAlignment="Center" TextWrapping="Wrap" Foreground="#777777"/>
<TextBlock Name="TextBlockBirth" Grid.Row="1" Grid.Column="3" VerticalAlignment="Center" TextWrapping="Wrap" Foreground="#777777"/>
<TextBlock Name="TextBlockSN" Grid.Row="2" Grid.Column="1" Grid.ColumnSpan="3" VerticalAlignment="Center" TextWrapping="Wrap" Foreground="#777777"/>
<TextBlock Name="TextBlockAddress" Grid.Row="3" Grid.Column="1" Grid.ColumnSpan="3" VerticalAlignment="Center" TextWrapping="Wrap" Foreground="#777777"/>
</Grid>
</GroupBox>
</Grid>
</Grid>
</Window>