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Diffstat (limited to 'ftnoir_tracker_pt/ftnoir_tracker_pt.cpp')
| -rw-r--r-- | ftnoir_tracker_pt/ftnoir_tracker_pt.cpp | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/ftnoir_tracker_pt/ftnoir_tracker_pt.cpp b/ftnoir_tracker_pt/ftnoir_tracker_pt.cpp new file mode 100644 index 00000000..8b77b681 --- /dev/null +++ b/ftnoir_tracker_pt/ftnoir_tracker_pt.cpp @@ -0,0 +1,226 @@ +/* Copyright (c) 2012 Patrick Ruoff + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + */ + +#include "ftnoir_tracker_pt.h" +#include <QHBoxLayout> +#include <cmath> +#include <QDebug> +#include <QFile> +#include <QCoreApplication> + +using namespace std; +using namespace cv; + +//#define PT_PERF_LOG //log performance + +//----------------------------------------------------------------------------- +Tracker::Tracker() + : mutex(QMutex::Recursive), + commands(0), + video_widget(NULL), + video_frame(NULL), + new_settings(nullptr) +{ +} + +Tracker::~Tracker() +{ + set_command(ABORT); + wait(); + delete video_widget; + video_widget = NULL; + if (video_frame->layout()) delete video_frame->layout(); +} + +void Tracker::set_command(Command command) +{ + //QMutexLocker lock(&mutex); + commands |= command; +} + +void Tracker::reset_command(Command command) +{ + //QMutexLocker lock(&mutex); + commands &= ~command; +} + +void Tracker::run() +{ +#ifdef PT_PERF_LOG + QFile log_file(QCoreApplication::applicationDirPath() + "/PointTrackerPerformance.txt"); + if (!log_file.open(QIODevice::WriteOnly | QIODevice::Text)) return; + QTextStream log_stream(&log_file); +#endif + time.start(); + while((commands & ABORT) == 0) + { + apply_inner(); + const double dt = time.start() * 1e-9; + const bool new_frame = camera.get_frame(dt, &frame); + + if (new_frame && !frame.empty()) + { + QMutexLocker lock(&mutex); + + frame = frame_rotation.rotate_frame(frame); + const std::vector<cv::Vec2f>& points = point_extractor.extract_points(frame); + for (auto p : points) + { + auto p2 = cv::Point(p[0] * frame.cols + frame.cols/2, -p[1] * frame.cols + frame.rows/2); + cv::Scalar color(0, 255, 0); + cv::line(frame, + cv::Point(p2.x - 20, p2.y), + cv::Point(p2.x + 20, p2.y), + color, + 4); + cv::line(frame, + cv::Point(p2.x, p2.y - 20), + cv::Point(p2.x, p2.y + 20), + color, + 4); + } + if (points.size() == PointModel::N_POINTS) + point_tracker.track(points, model); + video_widget->update_image(frame); + } +#ifdef PT_PERF_LOG + log_stream<<"dt: "<<dt; + if (!frame.empty()) log_stream<<" fps: "<<camera.get_info().fps; + log_stream<<"\n"; +#endif + } + + qDebug()<<"Tracker:: Thread stopping"; +} +void Tracker::apply(settings& s) +{ + // caller guarantees object lifetime + new_settings = &s; +} + +void Tracker::apply_inner() +{ + settings* tmp = new_settings.exchange(nullptr); + if (tmp == nullptr) + return; + reset(); + auto& s = *tmp; + qDebug()<<"Tracker:: Applying settings"; + + { + cv::Vec3f M01(s.m01_x, s.m01_y, s.m01_z); + cv::Vec3f M02(s.m02_x, s.m02_y, s.m02_z); + model = PointModel(M01, M02); + } + camera.set_device_index(s.cam_index); + camera.set_res(s.cam_res_x, s.cam_res_y); + camera.set_fps(s.cam_fps); + frame_rotation.rotation = static_cast<RotationType>(static_cast<int>(s.cam_roll)); + point_extractor.threshold_val = s.threshold; + point_extractor.threshold_secondary_val = s.threshold_secondary; + point_extractor.min_size = s.min_point_size; + point_extractor.max_size = s.max_point_size; + t_MH = cv::Vec3f(s.t_MH_x, s.t_MH_y, s.t_MH_z); + R_GC = Matx33f( cos(deg2rad*s.cam_yaw), 0, sin(deg2rad*s.cam_yaw), + 0, 1, 0, + -sin(deg2rad*s.cam_yaw), 0, cos(deg2rad*s.cam_yaw)); + R_GC = R_GC * Matx33f( 1, 0, 0, + 0, cos(deg2rad*s.cam_pitch), sin(deg2rad*s.cam_pitch), + 0, -sin(deg2rad*s.cam_pitch), cos(deg2rad*s.cam_pitch)); + + FrameTrafo X_MH(Matx33f::eye(), t_MH); + X_GH_0 = R_GC * X_MH; + qDebug()<<"Tracker::apply ends"; +} + +void Tracker::reset() +{ + QMutexLocker lock(&mutex); + point_tracker.reset(); +} + +void Tracker::center() +{ + point_tracker.reset(); // we also do a reset here since there is no reset shortkey yet + QMutexLocker lock(&mutex); + FrameTrafo X_CM_0 = point_tracker.get_pose(); + FrameTrafo X_MH(Matx33f::eye(), t_MH); + X_GH_0 = R_GC * X_CM_0 * X_MH; +} + +void Tracker::StartTracker(QFrame *parent_window) +{ + this->video_frame = parent_window; + video_frame->setAttribute(Qt::WA_NativeWindow); + video_frame->show(); + video_widget = new PTVideoWidget(video_frame); + QHBoxLayout* video_layout = new QHBoxLayout(parent_window); + video_layout->setContentsMargins(0, 0, 0, 0); + video_layout->addWidget(video_widget); + video_frame->setLayout(video_layout); + video_widget->resize(video_frame->width(), video_frame->height()); + camera.start(); + apply(s); + start(); +} + +#ifndef OPENTRACK_API +void Tracker::StopTracker(bool exit) +{ + set_command(PAUSE); +} +#endif + +#ifdef OPENTRACK_API +#define THeadPoseData double +#endif + +void Tracker::GetHeadPoseData(THeadPoseData *data) +{ + { + QMutexLocker lock(&mutex); + + FrameTrafo X_CM = point_tracker.get_pose(); + FrameTrafo X_MH(Matx33f::eye(), t_MH); + FrameTrafo X_GH = R_GC * X_CM * X_MH; + Matx33f R = X_GH.R * X_GH_0.R.t(); + Vec3f t = X_GH.t - X_GH_0.t; + + // get translation(s) + data[TX] = t[0] / 10.0; // convert to cm + data[TY] = t[1] / 10.0; + data[TZ] = t[2] / 10.0; + + // translate rotation matrix from opengl (G) to roll-pitch-yaw (E) frame + // -z -> x, y -> z, x -> -y + Matx33f R_EG( 0, 0,-1, + -1, 0, 0, + 0, 1, 0); + R = R_EG * R * R_EG.t(); + + // extract rotation angles + float alpha, beta, gamma; + beta = atan2( -R(2,0), sqrt(R(2,1)*R(2,1) + R(2,2)*R(2,2)) ); + alpha = atan2( R(1,0), R(0,0)); + gamma = atan2( R(2,1), R(2,2)); + + data[Yaw] = rad2deg * alpha; + data[Pitch] = - rad2deg * beta; // FTNoIR expects a minus here + data[Roll] = rad2deg * gamma; + } +} + +//----------------------------------------------------------------------------- +#ifdef OPENTRACK_API +extern "C" OPENTRACK_EXPORT ITracker* GetConstructor() +#else +#pragma comment(linker, "/export:GetTracker=_GetTracker@0") +OPENTRACK_EXPORT ITrackerPtr __stdcall GetTracker() +#endif +{ + return new Tracker; +} |