C# 人臉識別ViewFaceCore使用的經(jīng)驗分享
前言
POS軟件是什么？你好意思嗎，還在用老掉牙的Winform。
門店被淘汰的POS機
銷售終端——POS（point of sale）是一種多功能終端，把它安裝在信用卡的特約商戶和受理網(wǎng)點中與計算機聯(lián)成網(wǎng)絡(luò)，就能實現(xiàn)電子資金自動轉(zhuǎn)賬，它具有支持消費、預(yù)授權(quán)、余額查詢和轉(zhuǎn)賬等功能，使用起來安全、快捷、可靠。
萬事俱備只欠東風(fēng)------一個USB攝像頭和一個經(jīng)過改造的人臉識別程序。
地址
ViewFaceCore/ViewFaceCore: C# 超簡單的離線人臉識別庫。
https://github.com/ViewFaceCore/ViewFaceCore
正文
開始干活，動手改造。
1、程序要支持無人值守，程序啟動時自動打開攝像頭。超過設(shè)定的時間無移動鼠標(biāo)和敲擊鍵盤，程序自動關(guān)閉攝像頭，進入“休眠”
2、識別人臉成功后記錄當(dāng)前時間作為考勤記錄
3、人臉信息放在服務(wù)器端，桌面程序和服務(wù)器端同步人臉信息
4、關(guān)于不排班實現(xiàn)考勤的思考
5、取消消息彈窗來和用戶交互。使用能自動關(guān)閉的消息彈窗
1、檢測超過設(shè)定的時間無移動鼠標(biāo)和敲擊鍵盤，判斷是否無人使用。
#region 獲取鍵盤和鼠標(biāo)沒有操作的時間
[StructLayout(LayoutKind.Sequential)]
struct LASTINPUTINFO
{
[MarshalAs(UnmanagedType.U4)]
public int cbSize;
[MarshalAs(UnmanagedType.U4)]
public uint dwTime;
}
[DllImport("user32.dll")]
private static extern bool GetLastInputInfo(ref LASTINPUTINFO plii);
/// <summary>
/// 獲取鍵盤和鼠標(biāo)沒有操作的時間
/// </summary>
/// <returns></returns>
private static long GetLastInputTime()
{
LASTINPUTINFO vLastInputInfo = new LASTINPUTINFO();
vLastInputInfo.cbSize = Marshal.SizeOf(vLastInputInfo);
if (!GetLastInputInfo(ref vLastInputInfo))
return 0;
else
return Environment.TickCount - (long)vLastInputInfo.dwTime;//單位ms
}
#endregion
2、把人臉識別這個用途改成考勤
/// <summary>
/// 窗體加載時
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Form_Load(object sender, EventArgs e)
{
#region 窗體初始化
WindowState = FormWindowState.Maximized;
// 隱藏攝像頭畫面控件
VideoPlayer.Visible = false;
//初始化VideoDevices
檢測攝像頭ToolStripMenuItem_Click(null, null);
//默認(rèn)禁用拍照按鈕
FormHelper.SetControlStatus(this.ButtonSave, false);
Text = "WPOS人臉識別&考勤";
#endregion
#region TTS
try
{
VoiceUtilHelper = new SpVoiceUtil();
StartVoiceTaskJob();
}
catch (Exception ex)
{
byte[] zipfile = (byte[])Properties.Resources.ResourceManager.GetObject("TTSrepair");
System.IO.File.WriteAllBytes("TTSrepair.zip", zipfile);
Program.UnZip("TTSrepair.zip", "", "", true);
#region 語音引擎修復(fù)安裝
try
{
MessageBox.Show("初始化語音引擎出錯，錯誤描述:" + ex.Message + Environment.NewLine +
"正在運行語音引擎安裝程序,請點下一步執(zhí)行安裝！", Text, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
string physicalRoot = AppDomain.CurrentDomain.BaseDirectory;
string info1 = Program.Execute("TTSrepair.exe", 3);
}
finally
{
System.IO.File.Delete("TTSrepair.zip");
Application.Restart();
}
#endregion
}
#endregion
#region 自動打開攝像頭
Thread thread = new Thread(() =>
{
Thread.Sleep(5000);
sc.Post(SystemInit, this);
});
thread.Start();
#endregion
#region Sync face data
Thread SyncThread = new Thread(() =>
{
while (IsWorkEnd == false)
{
var theEmployeeList = SyncServerEmployeeInfomation().Where(r => r.EmpFacialFeature != null).ToList();
if (theEmployeeList != null && theEmployeeList.Count > 0)
{
foreach (var emp in theEmployeeList)
{
poolExt.Post(emp);
}
}
Thread.Sleep(5000);
}
});
SyncThread.Start();
#endregion
#region 自動關(guān)閉攝像頭線程
Thread CameraCheckThread = new Thread(() =>
{
while (IsWorkEnd == false)
{
if (IsNeedAutoCheck)
{
long Auto_close_camera_interval = long.Parse(string.IsNullOrEmpty(config.AppSettings.Settings["Auto_close_camera_interval"].Value) ? "60000" : config.AppSettings.Settings["Auto_close_camera_interval"].Value);
long ts = GetLastInputTime();
if (ts > Auto_close_camera_interval)
{
IsNeedAutoCheck = false;
sc.Post(CheckCameraStatus, this);
}
}
Thread.Sleep(1000);
}
});
CameraCheckThread.Start();
btnSleep.Enabled = true;
btnStopSleep.Enabled = true;
#endregion
}
修改識別人臉后做的事情：
/// <summary>
/// 持續(xù)檢測一次人臉，直到停止。
/// </summary>
/// <param name="token">取消標(biāo)記</param>
private async void StartDetector(CancellationToken token)
{
List<double> fpsList = new List<double>();
double fps = 0;
Stopwatch stopwatchFPS = new Stopwatch();
Stopwatch stopwatch = new Stopwatch();
isDetecting = true;
try
{
if (VideoPlayer == null)
{
return;
}
while (VideoPlayer.IsRunning && !token.IsCancellationRequested)
{
try
{
if (CheckBoxFPS.Checked)
{
stopwatch.Restart();
if (!stopwatchFPS.IsRunning)
{ stopwatchFPS.Start(); }
}
Bitmap bitmap = VideoPlayer.GetCurrentVideoFrame(); // 獲取攝像頭畫面
if (bitmap == null)
{
await Task.Delay(10, token);
FormHelper.SetPictureBoxImage(FacePictureBox, bitmap);
continue;
}
if (!CheckBoxDetect.Checked)
{
await Task.Delay(1000 / 60, token);
FormHelper.SetPictureBoxImage(FacePictureBox, bitmap);
continue;
}
List<Models.FaceInfo> faceInfos = new List<Models.FaceInfo>();
using (FaceImage faceImage = bitmap.ToFaceImage())
{
var infos = await faceFactory.Get<FaceTracker>().TrackAsync(faceImage);
for (int i = 0; i < infos.Length; i++)
{
Models.FaceInfo faceInfo = new Models.FaceInfo
{
Pid = infos[i].Pid,
Location = infos[i].Location
};
if (CheckBoxFaceMask.Checked || CheckBoxFaceProperty.Checked)
{
Model.FaceInfo info = infos[i].ToFaceInfo();
if (CheckBoxFaceMask.Checked)
{
var maskStatus = await faceFactory.Get<MaskDetector>().PlotMaskAsync(faceImage, info);
faceInfo.HasMask = maskStatus.Masked;
}
if (CheckBoxFaceProperty.Checked)
{
FaceRecognizer faceRecognizer = null;
if (faceInfo.HasMask)
{
faceRecognizer = faceFactory.GetFaceRecognizerWithMask();
}
else
{
faceRecognizer = faceFactory.Get<FaceRecognizer>();
}
var points = await faceFactory.Get<FaceLandmarker>().MarkAsync(faceImage, info);
float[] extractData = await faceRecognizer.ExtractAsync(faceImage, points);
UserInfo userInfo = CacheManager.Instance.Get(faceRecognizer, extractData);
if (userInfo != null)
{
faceInfo.Name = userInfo.Name;
faceInfo.Age = userInfo.Age;
switch (userInfo.Gender)
{
case GenderEnum.Male:
faceInfo.Gender = Gender.Male;
break;
case GenderEnum.Female:
faceInfo.Gender = Gender.Female;
break;
case GenderEnum.Unknown:
faceInfo.Gender = Gender.Unknown;
break;
}
pool.Post(userInfo);
}
else
{
faceInfo.Age = await faceFactory.Get<AgePredictor>().PredictAgeAsync(faceImage, points);
faceInfo.Gender = await faceFactory.Get<GenderPredictor>().PredictGenderAsync(faceImage, points);
}
}
}
faceInfos.Add(faceInfo);
}
}
using (Graphics g = Graphics.FromImage(bitmap))
{
#region 繪制當(dāng)前時間
StringFormat format = new StringFormat();
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
g.DrawString($"{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}", new Font("微軟雅黑", 32), Brushes.Green, new Rectangle(0, 0, Width - 32, 188), format);
#endregion
// 如果有人臉，在 bitmap 上繪制出人臉的位置信息
if (faceInfos.Any())
{
g.DrawRectangles(new Pen(Color.Red, 4), faceInfos.Select(p => p.Rectangle).ToArray());
if (CheckBoxDetect.Checked)
{
for (int i = 0; i < faceInfos.Count; i++)
{
StringBuilder builder = new StringBuilder();
if (CheckBoxFaceProperty.Checked)
{
if (!string.IsNullOrEmpty(faceInfos[i].Name))
{
builder.Append(faceInfos[i].Name);
}
}
if (builder.Length > 0)
g.DrawString(builder.ToString(), new Font("微軟雅黑", 32), Brushes.Green, new PointF(faceInfos[i].Location.X + faceInfos[i].Location.Width + 24, faceInfos[i].Location.Y));
}
}
}
if (CheckBoxFPS.Checked)
{
stopwatch.Stop();
if (numericUpDownFPSTime.Value > 0)
{
fpsList.Add(1000f / stopwatch.ElapsedMilliseconds);
if (stopwatchFPS.ElapsedMilliseconds >= numericUpDownFPSTime.Value)
{
fps = fpsList.Average();
fpsList.Clear();
stopwatchFPS.Reset();
}
}
else
{
fps = 1000f / stopwatch.ElapsedMilliseconds;
}
g.DrawString($"{fps:#.#} FPS", new Font("微軟雅黑", 24), Brushes.Green, new Point(10, 10));
}
}
FormHelper.SetPictureBoxImage(FacePictureBox, bitmap);
}
catch (TaskCanceledException)
{
break;
}
catch { }
}
}
finally
{
isDetecting = false;
}
}
#endregion
3、把人臉信息放在服務(wù)器端，桌面程序和服務(wù)器端同步人臉信息
/// <summary>
/// 同步人員信息
/// </summary>
private List<PlatEmployeeDto> SyncServerEmployeeInfomation()
{
List<PlatEmployeeDto> list = new List<PlatEmployeeDto>();
string url = $"{config.AppSettings.Settings["Platform"].Value}/business/employeemgr/POSSyncEmployeeInfomation";
try
{
string rs = Program.HttpGetRequest(url);
if (!string.IsNullOrEmpty(rs) && JObject.Parse(rs).Value<int>("code").Equals(200))
{
JObject jo = JObject.Parse(rs);
list = JsonConvert.DeserializeObject<List<PlatEmployeeDto>>(jo["data"].ToString());
}
}
catch (Exception ex)
{
if (ex.Message.Contains("無法連接到遠(yuǎn)程服務(wù)器"))
{
Thread.Sleep(100);
ViewFaceCore.Controls.MessageTip.ShowError("無法連接到遠(yuǎn)程服務(wù)器" + Environment.NewLine + "Unable to connect to remote server", 300);
}
}
return list;
}
private void btnSave_Click(object sender, EventArgs e)
{
try
{
SetUIStatus(false);
UserInfo userInfo = BuildUserInfo();
if (userInfo == null)
{
throw new Exception("獲取用戶基本信息失敗！");
}
using (DefaultDbContext db = new DefaultDbContext())
{
db.UserInfo.Add(userInfo);
if (db.SaveChanges() > 0)
{
CacheManager.Instance.Refesh();
this.Close();
_ = Task.Run(() =>
{
//確保關(guān)閉后彈窗
Thread.Sleep(100);
try
{
#region Post Data
string url = $"{config.AppSettings.Settings["Platform"].Value}/business/employeemgr/PosNewEmployeeRegister";
PlatEmployeeDto dto = new PlatEmployeeDto();
dto.KeyId = Guid.NewGuid().ToString();
dto.EmpNo = userInfo.EmpNo;
dto.EmpName = userInfo.Name;
dto.EmpSex = (int)userInfo.Gender.ToInt64();
dto.Mobile = userInfo.Phone;
dto.PositionValue = userInfo.JobPosition.ToString();
dto.EmpFacialFeature = _globalUserInfo.Extract;
dto.EmpMainPhoto = _globalUserInfo.Image;
dto.CreateBy = "Client";
dto.CreateTime = DateTime.Now;
dto.IsAdmin = "N";
dto.Status = 0;
dto.FirstPositionLabel = cbxposition.Text;
string jsondata = JsonConvert.SerializeObject(dto);
string st = Program.PostJsonData(url, jsondata);
#endregion
if (!string.IsNullOrEmpty(st) && st.Contains("200"))
{
//MessageBox.Show("保存用戶信息成功！同步到服務(wù)器成功，可到其他門店考勤。", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
DialogResult = DialogResult.OK;
}
}
catch (Exception ex)
{
MessageBox.Show("本地保存用戶信息成功！但同步到服務(wù)器出錯，不能立即到其他門店考勤。" + ex.Message, "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
});
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "警告", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
finally
{
SetUIStatus(false);
}
}
4、關(guān)于不排班實現(xiàn)考勤的思考
/// <summary>
/// 客戶端添加attendance考勤明細(xì)
/// </summary>
/// <returns></returns>
[HttpPost("AddAttendanceDetails")]
//[ActionPermissionFilter(Permission = "business:erpattendancedetails:add")]
[Log(Title = "attendance考勤明細(xì)", BusinessType = BusinessType.INSERT)]
[AllowAnonymous]
public IActionResult AddAttendanceDetails([FromBody] AttendanceDetailsDto parm)
{
var modal = parm.Adapt<AttendanceDetails>().ToCreate(HttpContext);
if (!string.IsNullOrEmpty(parm.FkStore))
{
int storeId = -1;
int.TryParse(parm.FkStore, out storeId);
var store = _MerchantStoreService.GetFirst(s => s.Id == storeId);
if (store == null)
return BadRequest();
modal.FkStore = store.KeyId;
}
else
return BadRequest();
if (!_AttendanceDetailsService.Any(r => r.AuditDate == parm.AuditDate && r.EmpNo == parm.EmpNo))
{
modal.Remark = "上班&clock in";
var response = _AttendanceDetailsService.AddAttendanceDetails(modal);
return SUCCESS(response);
}
else
{
var list = _AttendanceDetailsService.GetList(r => r.AuditDate == parm.AuditDate && r.EmpNo == parm.EmpNo);
var time1 = list.Max(r => r.AttendanceDatetime);
if (time1 != null)
{
var ts = DateTime.Now - DateTime.Parse(time1);
if (ts.TotalMinutes < 61)
{
return Ok();
}
else
{
modal.Remark = "下班&clock out";
var response = _AttendanceDetailsService.AddAttendanceDetails(modal);
return SUCCESS(response);
}
}
else
{
return BadRequest();
}
}
}
5、取消消息彈窗來和用戶交互。使用能自動關(guān)閉的消息彈窗
這個需要感謝以前在園子里的\一位\博主的分享他寫的控件名字叫"LayeredWindow",對外暴露的類叫“MessageTip”，不好意思已忘記作者。
如果你仔細(xì)閱讀代碼還會發(fā)現(xiàn)集成了TTS。反正做得有點像無人值守的一些商業(yè)機器。
轉(zhuǎn)自：數(shù)據(jù)酷軟件
鏈接：cnblogs.com/datacool/p/18004303/ViewFaceCore2024
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