Alexandria 2.31.0
SDC-CH common library for the Euclid project
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#include <Distances.h>
Static Public Member Functions | |
template<typename Scale , typename Iterator > | |
static auto | distance (Scale scale, Iterator ref_begin, Iterator ref_end, Iterator target_begin) -> decltype(ref_begin->getFlux()) |
template<typename Iterator > | |
static auto | guessScale (Iterator ref_begin, Iterator ref_end, Iterator target_begin) -> decltype(ref_begin->getFlux()) |
template<typename Scale , typename Iterator > | |
static auto | daDistance (Scale scale, Iterator ref_begin, Iterator ref_end, Iterator target_begin) -> decltype(ref_begin->getFlux()) |
Implement the distance (with scale factor), partial derivative of the distance wrt scale factor, and scale guessing for the Euclidean distance
Definition at line 115 of file Distances.h.
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inlinestatic |
\[ \frac{\delta}{\delta a}\left[ \sqrt{\sum_i^n (a f_{ref} - f_{target})^2} \right] = \frac{a \left(\sum_i^n *f_{ref}^2\right) - \left( \sum_i^n f_{ref} \times f_{target} \right)}{\sqrt{\sum_i^n (a f_{ref} - f_{target})^2}} *\]
Definition at line 156 of file Distances.h.
References std::sqrt().
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inlinestatic |
Definition at line 117 of file Distances.h.
References std::sqrt().
Referenced by Euclid::MathUtils::InverseEuclidean::weight().
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inlinestatic |
Guess the scale factor for the reference object
Iterator |
ref_begin | |
ref_end | |
target_begin |
Definition at line 138 of file Distances.h.
References std::sqrt().