private bool filter(FaceInfo faceInfo, int bitMapWidth, int bitMapHeight)
{
if (faceInfo.MConf < 0.6)
{
livenessCallBack.onTip(0, "人脸置信度太低");
// clearInfo();
return(false);
}
float[] headPose = FaceFeature.PerformQuery <float>(faceInfo.HeadPose);
// Log.i("wtf", "headpose->" + headPose[0] + " " + headPose[1] + " " + headPose[2]);
if (Java.Lang.Math.Abs(headPose[0]) > 15 || Java.Lang.Math.Abs(headPose[1]) > 15 || Java.Lang.Math.Abs(headPose[2]) > 15)
{
livenessCallBack.onTip(0, "人脸置角度太大，请正对屏幕");
return(false);
}
// 判断人脸大小，若人脸超过屏幕二分一，则提示文案“人脸离手机太近，请调整与手机的距离”；
// 若人脸小于屏幕三分一，则提示“人脸离手机太远，请调整与手机的距离”
float ratio = (float)faceInfo.MWidth / (float)bitMapHeight;
// Log.i("liveness_ratio", "ratio=" + ratio);
if (ratio > 0.6)
{
livenessCallBack.onTip(0, "人脸离屏幕太近，请调整与屏幕的距离");
// clearInfo();
return(false);
}
else if (ratio < 0.2)
{
livenessCallBack.onTip(0, "人脸离屏幕太远，请调整与屏幕的距离");
// clearInfo();
return(false);
}
else if (faceInfo.MCenterX > bitMapWidth * 3 / 4)
{
livenessCallBack.onTip(0, "人脸在屏幕中太靠右");
clearInfo();
return(false);
}
else if (faceInfo.MCenterX < bitMapWidth / 4)
{
livenessCallBack.onTip(0, "人脸在屏幕中太靠左");
// clearInfo();
return(false);
}
else if (faceInfo.MCenterY > bitMapHeight * 3 / 4)
{
livenessCallBack.onTip(0, "人脸在屏幕中太靠下");
// clearInfo();
return(false);
}
else if (faceInfo.MCenterX < bitMapHeight / 4)
{
livenessCallBack.onTip(0, "人脸在屏幕中太靠上");
// clearInfo();
return(false);
}
return(true);
}
private FaceSDKManager()
{
faceDetector = new FaceDetector();
faceFeature = new FaceFeature();
}
// 活体检测
private bool onLivenessCheck(int width, int height, int type)
{
bool isLiveness = false;
// 判断当前是否有人脸
long startTime = DateTime.Now.Millisecond;
int errorCode = FaceSDKManager.getInstance().getFaceDetector().detect(mRgbArray, width, height);
LivenessModel livenessModel = new LivenessModel();
livenessModel.setRgbDetectDuration(DateTime.Now.Millisecond - startTime);
livenessModel.getImageFrame().setArgb(mRgbArray);
livenessModel.getImageFrame().setWidth(width);
livenessModel.getImageFrame().setHeight(height);
livenessModel.setLiveType(type);
livenessModel.setFaceDetectCode(errorCode);
Log.Debug(TAG, "max_face_verification: " + errorCode + " duration:" + (DateTime.Now.Millisecond - startTime));
if (errorCode == FaceTracker.ErrCode.Ok.Ordinal() || errorCode == FaceTracker.ErrCode.DataHitLast.Ordinal())
{
FaceInfo[] trackedface = FaceSDKManager.getInstance().getFaceDetector().TrackedFaces;
livenessModel.setTrackFaceInfo(trackedface);
if (trackedface != null && trackedface.Length > 0)
{
FaceInfo faceInfo = trackedface[0];
livenessModel.setFaceInfo(faceInfo);
// 塞选人脸，可以调节距离、角度
// if (!filter(faceInfo, width, height)) {
// livenessCallBack.onCallback(null);
// return isLiveness;
// }
if (livenessCallBack != null)
{
livenessCallBack.onTip(0, "活体判断中");
}
float rgbScore = 0;
if ((type & MASK_RGB) == MASK_RGB)
{
startTime = DateTime.Now.Millisecond;
rgbScore = rgbLiveness(mRgbArray, width, height, FaceFeature.PerformQuery <int>(trackedface[0].Landmarks));
livenessModel.setRgbLivenessScore(rgbScore);
livenessModel.setRgbLivenessDuration(DateTime.Now.Millisecond - startTime);
}
float irScore = 0;
if ((type & MASK_IR) == MASK_IR)
{
float maxWidth = 0;
int maxId = 0;
float detectScore = 0;
if (trackedface != null && trackedface.Length > 0)
{
for (int i = 0; i < trackedface.Length; i++)
{
if (trackedface[i].MWidth > maxWidth)
{
maxId = i;
maxWidth = trackedface[i].MWidth;
detectScore = trackedface[i].MConf;
}
}
}
if (trackedface != null)
{
float[] faceT = new float[] { trackedface[maxId].MCenterX,
trackedface[maxId].MCenterY, trackedface[maxId].MWidth,
trackedface[maxId].MAngle };
int[] shape = new int[144];
int[] nPoint = new int[] { 0 };
float[] score = new float[] { 0.0F };
FaceSDK.Run_align(nirRgbArray, height, width, FaceSDK.ImgType.Argb,
FaceSDK.AlignMethodType.Cdnn, faceT, shape, nPoint, score, detectScore);
livenessModel.setShape(shape);
startTime = DateTime.Now.Millisecond;
// irScore = irLiveness(mIrByte, width, height, trackedfaces[0].landmarks);
irScore = irLiveness(mIrByte, width, height, shape);
livenessModel.setIrLivenessDuration(DateTime.Now.Millisecond - startTime);
livenessModel.setIrLivenessScore(irScore);
}
}
float depthScore = 0;
if ((type & MASK_DEPTH) == MASK_DEPTH)
{
startTime = DateTime.Now.Millisecond;
if (trackedface != null)
{
depthScore = depthLiveness(mDepthArray, width, height, FaceFeature.PerformQuery <int>(trackedface[0].Landmarks));
livenessModel.setDetphtLivenessDuration(DateTime.Now.Millisecond - startTime);
livenessModel.setDepthLivenessScore(depthScore);
}
}
if (livenessCallBack != null)
{
livenessCallBack.onCallback(livenessModel);
}
// long time = System.currentTimeMillis();
// saveRgbImage(String.valueOf(time), rgbScore, mRgbArray, width, height);
// saveFile(String.valueOf(time), "nir", irScore, mIrByte);
// saveFile(String.valueOf(time), "depth", depthScore, mDepthArray);
}
}
else
{
checkFaceCode(errorCode);
if (livenessCallBack != null)
{
livenessCallBack.onCallback(null);
}
}
// clearInfo();
FaceInfo[] trackedfaces = FaceSDKManager.getInstance().getFaceDetector().TrackedFaces;
livenessModel.setTrackFaceInfo(trackedfaces);
if (livenessCallBack != null)
{
livenessCallBack.onCanvasRectCallback(livenessModel);
}
return(isLiveness);
}