DGtal::detail::CurvatureFromDSSLength Struct Reference

#include <DGtal/geometry/curves/estimation/SegmentComputerEstimators.h>

Public Types
typedef double	Value

Public Member Functions
template<typename DSS >
Value	operator() (const DSS &aDSS) const

Detailed Description

Description of class 'CurvatureFromDSSLength'

Aim: Computes the curvature \( k \) from the discrete length \( l \) of a DSS as follow: \( 1/k = l*l/8 + 1/2 \)

Note

Adaption from Coeurjolly, D. and Miguet, S. and Tougne, L. "Discrete Curvature Based on Osculating Circle Estimation", Proc. IWVF, LNCS, vol 2059, pp.303-312, 2001

Definition at line 1233 of file SegmentComputerEstimators.h.

Member Typedef Documentation

Value

typedef double DGtal::detail::CurvatureFromDSSLength::Value

Definition at line 1236 of file SegmentComputerEstimators.h.

Member Function Documentation

operator()()

template<typename DSS >

Value DGtal::detail::CurvatureFromDSSLength::operator() ( const DSS & aDSS ) const

inline

Definition at line 1239 of file SegmentComputerEstimators.h.

      {
        typedef typename DSS::Vector Vector; 
        //length
        Vector v = ( *aDSS.begin() - *boost::prior(aDSS.end()) ); 
        Value l = v.norm(Vector::L_2);
        //result
        return 1./( (l*l)/8. + 0.5 );  
      }

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The documentation for this struct was generated from the following file:

• SegmentComputerEstimators.h