private void FaceForm_Load(object sender, EventArgs e)
{
ptrMainForm = this.Handle;
engineContext = new EngineContext();
if (engineContext.IrCameraIdx >= 0)
{
this.chbLiveness.Checked = false;
this.chbLiveness.Visible = false;
}
if (ActiveEngine())
{
registerForm = new RegisterForm();
registerForm.Visible = false;
registerForm.ptrParentForm = this.Handle;
registerForm.engineContext = this.engineContext;
ptrRegisterForm = registerForm.Handle;
FaceDataLoad();
for (var i = 0; i < engineContext.FilterInfoCollection.Count; i++)
{
WinMessageHelper.SendMessage(this.Handle, UserMessage.WM_MESSAGE, IntPtr.Zero, engineContext.FilterInfoCollection[i].Name);
}
if (engineContext.IrCameraIdx < 0)
{
WinMessageHelper.SendMessage(this.Handle, UserMessage.WM_MESSAGE, IntPtr.Zero, "未检测到红外摄像头，请启用RGB活体检测。强烈建议使用双目摄像头！！！");
}
}
}
private void rdbThresholdHigh_CheckedChanged(object sender, EventArgs e)
{
if (this.rdbThresholdHigh.Checked)
{
engineContext.Threshold = 0.85f;
WinMessageHelper.SendMessage(this.Handle, UserMessage.WM_MESSAGE, IntPtr.Zero, "安全等级置为'高'级");
}
}
private void PerformDelete(int userId, int rowIndex)
{
Data.Domain.FaceFeature faceModel = iFaceDataRepository.GetById(userId);
FaceFormLock();
var stuFaceModel = faceModel.CreateStruct();
IntPtr ptrFaceModel = MemoryHelper.Malloc(MemoryHelper.SizeOf <MemberData>());
MemoryHelper.StructureToPtr <MemberData>(stuFaceModel, ptrFaceModel);
WinMessageHelper.SendMessage(this.Handle, UserMessage.WM_FACE_DATA_DELETE, (IntPtr)rowIndex, ptrFaceModel);
}
private void PerformUpdate(int userId)
{
Data.Domain.FaceFeature faceModel = iFaceDataRepository.GetById(userId);
FaceFormLock();
var stuFaceModel = faceModel.CreateStruct();
IntPtr ptrFaceModel = MemoryHelper.Malloc(MemoryHelper.SizeOf <MemberData>());
MemoryHelper.StructureToPtr <MemberData>(stuFaceModel, ptrFaceModel);
string avatarPath = iFaceDataRepository.GetFaceImageFullPath(faceModel.Id, faceModel.FaceImagePath);
IntPtr ptrAvatarPath = MemoryHelper.StringToIntPtr(avatarPath);
WinMessageHelper.SendMessage(ptrRegisterForm, UserMessage.WM_FACE_DATA_UPDATE, ptrAvatarPath, ptrFaceModel);
}
private bool ActiveEngine()
{
var ret = false;
try
{
var retCode = engineContext.ActivateEngine();
if (retCode == Core.MError.MOK || retCode == Core.MError.MERR_ASF_ALREADY_ACTIVATED)
{
ret = true;
}
else
{
WinMessageHelper.SendMessage(this.Handle, UserMessage.WM_MESSAGE, IntPtr.Zero, retCode.GetFieldDescription());
}
}
catch (Exception ex)
{
WinMessageHelper.SendMessage(this.Handle, UserMessage.WM_MESSAGE, IntPtr.Zero, ex.Message);
}
return(ret);
}
/// <summary>
/// 图像显示到窗体上，得到每一帧图像，并进行处理
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void videoSource_Paint(object sender, PaintEventArgs e)
{
if (videoSource.IsRunning)
{
//得到当前摄像头下的图片
Bitmap bitmap = videoSource.GetCurrentVideoFrame();
if (bitmap == null)
{
return;
}
Graphics g = e.Graphics;
float offsetX = videoSource.Width * 1f / bitmap.Width;
float offsetY = videoSource.Height * 1f / bitmap.Height;
ASF_MultiFaceInfo multiFaceInfoIr = default(ASF_MultiFaceInfo);
//检测人脸，得到Rect框
ASF_MultiFaceInfo multiFaceInfo = engineContext.DetectFace(bitmap);
if (multiFaceInfo.Equals(default(ASF_MultiFaceInfo)))
{
return;
}
//得到最大人脸
ASF_SingleFaceInfo maxFace = FaceProcessHelper.GetMaxFace(multiFaceInfo);
//得到Rect
MRECT rect = maxFace.faceRect;
float x = rect.left * offsetX;
float width = rect.right * offsetX - x;
float y = rect.top * offsetY;
float height = rect.bottom * offsetY - y;
//根据Rect进行画框
g.DrawRectangle(pen, x, y, width, height);
if (trackUnit.message != "" && x > 0 && y > 0)
{
//将上一帧检测结果显示到页面上
g.DrawString(trackUnit.message, font, brush, x, y + 5);
}
//保证只检测一帧，防止页面卡顿以及出现其他内存被占用情况
if (isLock == false)
{
//g.DrawRectangle(pen, x, y, width, height);
//if (trackUnit.message != "" && x > 0 && y > 0)
//{
// //将上一帧检测结果显示到页面上
// g.DrawString(trackUnit.message, font, brush, x, y + 5);
//}
isLock = true;
//异步处理提取特征值和比对，不然页面会比较卡
ThreadPool.QueueUserWorkItem(new WaitCallback(delegate
{
if (rect.left != 0 && rect.right != 0 && rect.top != 0 && rect.bottom != 0)
{
try
{
var liveness = 1;
var livenessIR = -1;
if (this.chbLiveness.Checked)
{
liveness = -1;
var livenessInfo = engineContext.GetLivenessScore(bitmap, maxFace);
try
{
liveness = MemoryHelper.PtrToStructure <int>(livenessInfo.isLive);
}
catch (Exception ex)
{
liveness = -1;
this.Invoke(new Action(delegate
{
//WinMessageHelper.SendMessage(this.Handle, UserMessage.WM_MESSAGE, IntPtr.Zero, $"liveness => {ex.Message}");
Afw.Core.Helper.SimplifiedLogHelper.WriteIntoSystemLog(nameof(FaceForm), $"videoSource_Paint livenessInfo exception=> {ex.ToString()}");
}));
}
}
if (currentIrImage != null)
{
//检测人脸，得到Rect框
multiFaceInfoIr = engineContext.DetectFaceIR(currentIrImage);
if (multiFaceInfoIr.faceNum > 0)
{
//得到最大人脸
ASF_SingleFaceInfo maxFaceIR = FaceProcessHelper.GetMaxFace(multiFaceInfoIr);
var livenessInfoIR = engineContext.GetLivenessScoreIR(currentIrImage, maxFace);
try
{
livenessIR = MemoryHelper.PtrToStructure <int>(livenessInfoIR.isLive);
}
catch (Exception ex)
{
livenessIR = -1;
this.Invoke(new Action(delegate
{
//WinMessageHelper.SendMessage(this.Handle, UserMessage.WM_MESSAGE, IntPtr.Zero, $"liveness IR => {ex.Message}");
Afw.Core.Helper.SimplifiedLogHelper.WriteIntoSystemLog(nameof(FaceForm), $"videoSource_Paint livenessIRInfo exception=> {ex.ToString()}");
}));
}
}
else
{
livenessIR = -1;
}
}
else
{
livenessIR = engineContext.IrCameraIdx >= 0 ? -1 : 1;
}
if (liveness == 1 && livenessIR == 1)
{
//提取人脸特征
IntPtr feature = engineContext.ExtractFeature(bitmap, maxFace);
float similarity = 0f;
if (feature == IntPtr.Zero)
{
return;
}
//得到比对结果
int result = CompareFeature(feature, out similarity);
if (result > -1)
{
//将比对结果放到显示消息中，用于最新显示
trackUnit.message = $" 员工Id{result} 相似度{similarity}";
this.Invoke(new Action(delegate
{
var member = iFaceDataRepository.GetById(result);
WinMessageHelper.SendMessage(this.Handle, UserMessage.WM_MESSAGE, IntPtr.Zero, $"人脸比对成功，【姓名：{member.Name},雇员号：{member.EmployeeNo}】");
if (this.chbAutoCloseVideo.Checked)
{
ButtonEnableForImage();
btnStartVideo.Text = "开启摄像头";
engineContext.StopVideoCapture();
this.rdbThresholdHigh.Enabled = true;
this.rdbThresholdLow.Enabled = true;
this.rdbThresholdMid.Enabled = true;
this.dgvFace.Enabled = true;
MessageBox.Show($"人脸比对成功，【姓名：{member.Name},雇员号：{member.EmployeeNo}】");
}
}));
}
else
{
//重置显示消息
trackUnit.message = "";
}
MemoryHelper.Free(feature);
}
else
{
trackUnit.message = "";
}
}
catch (Exception ex)
{
this.Invoke(new Action(delegate
{
WinMessageHelper.SendMessage(this.Handle, UserMessage.WM_MESSAGE, IntPtr.Zero, ex.Message);
}));
}
finally
{
isLock = false;
}
}
isLock = false;
if (currentIrImage != null)
{
currentIrImage = null;
}
}));
}
}
GC.Collect();
}