temporal_filter.h

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#ifndef TEMPORAL_FILTER_H
#define TEMPORAL_FILTER_H
 
#include <vector>
#include <cmath>
#include <limits>
 
namespace cppxdic {
 
std::vector<std::vector<double>> filterTime(
    const std::vector<std::vector<double>>& data,
    double freq_filt = 10.0,
    double freq_acq = 50.0
);
 
std::tuple<
    std::vector<std::vector<double>>,
    std::vector<std::vector<double>>,
    std::vector<std::vector<double>>
> filterTime3D(
    const std::vector<std::vector<double>>& disp_x,
    const std::vector<std::vector<double>>& disp_y,
    const std::vector<std::vector<double>>& disp_z,
    double freq_filt = 10.0,
    double freq_acq = 50.0
);
 
namespace detail {
 
std::pair<std::vector<double>, std::vector<double>> 
butterLowPass(int order, double wn);
 
std::vector<double> filtfilt(
    const std::vector<double>& b,
    const std::vector<double>& a,
    const std::vector<double>& x
);
 
std::vector<double> filter(
    const std::vector<double>& b,
    const std::vector<double>& a,
    const std::vector<double>& x
);
 
} // namespace detail
 
} // namespace cppxdic
 
#endif // TEMPORAL_FILTER_H