tracker-pt/pt-api.cpp


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#include "pt-api.hpp"
#include "cv/numeric.hpp"

using namespace types;

pt_camera_info::pt_camera_info()
{
}

double pt_camera_info::get_focal_length() const
{
    const double diag_len = std::sqrt(double(res_x*res_x + res_y*res_y));
    const double aspect_x = res_x / diag_len;
    //const double aspect_y = res_y / diag_len;
    const double diag_fov = fov * M_PI/180;
    const double fov_x = 2*std::atan(std::tan(diag_fov*.5) * aspect_x);
    //const double fov_y = 2*atan(tan(diag_fov*.5) * aspect_y);
    const double fx = .5 / std::tan(fov_x * .5);
    return fx;
    //fy = .5 / tan(fov_y * .5);
    //static bool once = false; if (!once) { once = true; qDebug() << "f" << ret << "fov" << (fov * 180/M_PI); }
}

pt_settings::pt_settings(const QString& name) : opts(name)
{
}

pt_camera::pt_camera()
{
}

pt_camera::~pt_camera()
{
}

pt_runtime_traits::pt_runtime_traits()
{
}

pt_runtime_traits::~pt_runtime_traits()
{
}

pt_point_extractor::pt_point_extractor()
{
}

pt_point_extractor::~pt_point_extractor()
{
}

double pt_point_extractor::threshold_radius_value(int w, int h, int threshold)
{
    double cx = w / 640., cy = h / 480.;

    const double min_radius = 1.75 * cx;
    const double max_radius = 15 * cy;

    const double radius = std::fmax(0., (max_radius-min_radius) * threshold / f(255) + min_radius);

    return radius;
}