// in a loop, capture frame from camera and detect faces
// send eyes coordinates to change view
void QOpenCV::FaceRecognitionThread::run()
{
mCancel = false;
cv::Mat image;
OpenCV::FaceRecognizer* mFaceRecognizer = new OpenCV::FaceRecognizer();
if ( mCapVideo == NULL ) {
qDebug() << "[FaceRecognitionThread::run()] Camera is not set";
return;
}
while ( !mCancel ) {
// get image from camera
image = mCapVideo->queryFrame();
cv::cvtColor( image, image, CV_BGR2RGB );
// we detect faces on grayscale image
mFaceRecognizer->detectFaces( mCapVideo->getGrayframe() );
mFaceRecognizer->annotateFaces( image );
cv::flip( image, image, 1 );
// show image
if ( mSendImgEnabled && !image.empty() ) {
if ( image.data ) {
emit pushImage( image.clone() ); // ???
}
}
if ( mSendBackgrImgEnabled && !image.empty() ) {
emit pushBackgrImage( image.clone() );
}
// when face was detected along with movement (implemented with threshold)
// send eyes coordinate to change view
if ( mFaceRecognizer->detected ) { //&& mFaceRecognizer->isMovement
emit sendEyesCoords( static_cast<float>( -mFaceRecognizer->getEyesCoords().x ),
static_cast<float>( -mFaceRecognizer->getEyesCoords().y ),
-mFaceRecognizer->getHeadDistance( mCapVideo->getWidth() ) );
// Kostan:
// focalLength - used my webcam focal length
// 0.1481m - face width avg (15yr - 40yr)
float focalLength = 749.3f;
float distance = mFaceRecognizer->getHeadDistanceFocal( 0.1481 );
float x = ( float ) -mFaceRecognizer->getEyesCoords().x * ( mCapVideo->getWidth()/200 ) * ( distance / focalLength );
float y = ( float ) -mFaceRecognizer->getEyesCoords().y * ( mCapVideo->getHeight()/200 ) * ( distance / focalLength );
emit sendEyesRealCoords( x, y, distance );
}
msleep( 80 );
}
mCapVideo->release();
mCapVideo = NULL;
delete mFaceRecognizer;
}
// in a loop, capture frame from camera and detect faces
// send eyes coordinates to change view
void QOpenCV::FaceRecognitionThread::run()
{
mCancel = false;
cv::Mat image;
OpenCV::FaceRecognizer* mFaceRecognizer = new OpenCV::FaceRecognizer();
if ( mCapVideo == NULL ) {
qDebug() << "[FaceRecognitionThread::run()] Camera is not set";
return;
}
while ( !mCancel ) {
// get image from camera
image = mCapVideo->queryFrame();
cv::cvtColor( image, image, CV_BGR2RGB );
// we detect faces on grayscale image
mFaceRecognizer->detectFaces( mCapVideo->getGrayframe() );
mFaceRecognizer->annotateFaces( image );
cv::flip( image, image, 1 );
// show image
if ( mSendImgEnabled && !image.empty() ) {
if ( image.data ) {
emit pushImage( image.clone() ); // ???
}
}
if ( mSendBackgrImgEnabled && !image.empty() ) {
emit pushBackgrImage( image.clone() );
}
// when face was detected along with movement (implemented with threshold)
// send eyes coordinate to change view
if ( mFaceRecognizer->detected ) { //&& mFaceRecognizer->isMovement
emit sendEyesCoords( static_cast<float>( -mFaceRecognizer->getEyesCoords().x ),
static_cast<float>( -mFaceRecognizer->getEyesCoords().y ),
-mFaceRecognizer->getHeadDistance( mCapVideo->getWidth() ) );
}
msleep( 80 );
}
mCapVideo->release();
mCapVideo = NULL;
delete mFaceRecognizer;
}