shapemod.h
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// shapemod.h: the ASM shape model
//
// Copyright (C) 2005-2013, Stephen Milborrow
#ifndef STASM_SHAPEMODEL_H
#define STASM_SHAPEMODEL_H
namespace stasm
{
class ShapeMod
{
public:
const Shape ConformShapeToMod_( // return shape conformed to shape mod
VEC& b, // io: eigvec weights
const Shape& shape, // in: shape suggested by the descriptor mods
int ilev) // in: pyramid level (0 is full size)
const;
const Shape ConformShapeToMod_Pinned_( // like above but allow pinned points
VEC& b, // io: eigvec weights
const Shape& shape, // in: shape suggested by the descriptor mods
int ilev, // in: pyramid level (0 is full size)
const Shape& pinnedshape) // in: pinned landmarks
const;
ShapeMod( // constructor
const Shape& meanshape,
const VEC& eigvals,
const MAT& eigvecs,
const int neigs,
const double bmax,
const unsigned hackbits)
: meanshape_(meanshape),
eigvals_(DimKeep(eigvals, neigs, 1)),
eigvecs_(DimKeep(eigvecs, eigvecs.rows, neigs)), // retain neigs cols
// take inverse of eigvecs (by taking transpose) and retain neigs rows
eigvecsi_(DimKeep(eigvecs.t(), neigs, eigvecs.cols)),
bmax_(bmax),
hackbits_(hackbits)
{
CV_Assert(meanshape.rows == stasm_NLANDMARKS);
CV_Assert(meanshape.cols == 2);
CV_Assert(NSIZE(eigvals) == 2 * stasm_NLANDMARKS);
CV_Assert(eigvecs.rows == 2 * stasm_NLANDMARKS);
CV_Assert(eigvecs.cols == 2 * stasm_NLANDMARKS);
CV_Assert(neigs > 0 && neigs <= 2 * stasm_NLANDMARKS);
CV_Assert(bmax > 0 && bmax < 10);
CV_Assert((hackbits & ~(SHAPEHACKS_DEFAULT|SHAPEHACKS_SHIFT_TEMPLE_OUT)) == 0);
}
// all data remains constant after ShapeMod construction
const Shape meanshape_; // mean shape aligned to face det frame
const VEC eigvals_; // neigs x 1 vector
const MAT eigvecs_; // 2n x neigs matrix where n is nbr of landmarks
const MAT eigvecsi_; // neigs x 2n matrix, inverse of eigvecs_
const double bmax_; // eigvec weight limit, for LimitB()
const unsigned hackbits_; // allowable shape model hacks (e.g. SHAPEHACKS_DEFAULT)
private:
DISALLOW_COPY_AND_ASSIGN(ShapeMod);
}; // end class ShapeMod
} // namespace stasm
#endif // STASM_SHAPEMODEL_H