#include <sdet_nms.h>

Public Member Functions
	sdet_nms (const sdet_nms_params &nsp, const vil_image_view< double > &dir_x, const vil_image_view< double > &dir_y, const vil_image_view< double > &grad_mag)
	Constructor from a parameter block, gradient magnitudes given as an image and gradients given as component images.
	~sdet_nms ()
	Destructor.
unsigned	width () const
unsigned	height () const
vbl_array_2d< double > &	mag ()
	return the array containing the suppressed non maxima (i.e., only maxima remain).
vbl_array_2d< double > &	deriv ()
	return the array containing the second deriv map.
void	apply ()
	apply NMS to the given data (do not collect any edgel tokens).
void	apply (bool collect_tokens, vcl_vector< vgl_point_2d< double > > &loc, vcl_vector< double > &orientation, vcl_vector< double > &mag)
	apply NMS to the given data (also collect edgel tokens).
void	apply (bool collect_tokens, vcl_vector< vgl_point_2d< double > > &loc, vcl_vector< double > &orientation, vcl_vector< double > &mag, vcl_vector< double > &d2f)
void	apply (bool collect_tokens, vcl_vector< vgl_point_2d< double > > &loc, vcl_vector< double > &orientation, vcl_vector< double > &mag, vcl_vector< double > &d2f, vcl_vector< vgl_point_2d< int > > &pix_loc)
	Apply the algorithm.
void	clear ()
	Clear internal storage.
int	intersected_face_number (const vgl_vector_2d< double > &direction)
double	intersection_parameter (const vgl_vector_2d< double > &direction, int face_num)
void	f_values (int x, int y, const vgl_vector_2d< double > &direction, double s, int face_num, double *f)
void	get_relative_corner_coordinates (int face_num, int *corners)
double	subpixel_s (double s, double f, double &max_f, double &max_d)
double	subpixel_s (int x, int y, const vgl_vector_2d< double > &direction, double &max_f)
void	find_distance_s_and_f_for_point (int x, int y, vgl_homg_line_2d< double > line, double &d, double &s, const vgl_vector_2d< double > &direction)
Protected Member Functions
	sdet_nms ()
	default constructor is not to be used.
Protected Attributes
double	thresh_
	threshold
sdet_nms_params::PFIT_TYPE	parabola_fit_type_
	flag for parabola fit method
unsigned	margin_
	margin size
double	rel_thresh_
	reliable threshold (depends on sensor noise and sigma)
bool	use_adaptive_thresh_
	use reliable threshold or not
const vil_image_view< double > &	dir_x_
const vil_image_view< double > &	dir_y_
const vil_image_view< double > &	grad_mag_
vbl_array_2d< double >	x_
	to store the x coordinate of the subpixel token
vbl_array_2d< double >	y_
	to store the y coordinate of the subpixel token
vbl_array_2d< double >	dir_
	to store the orientation of the subpixel token (this might be redundant)
vbl_array_2d< double >	mag_
	to store the magnitude of the maxima points (also doubles as a marker of edge pixels)
vbl_array_2d< double >	deriv_
	to store the second derivative of the maxima points

Detailed Description

Definition at line 63 of file sdet_nms.h.

Constructor & Destructor Documentation

sdet_nms::sdet_nms ( ) [protected]

default constructor is not to be used.

default constructor.

Definition at line 19 of file sdet_nms.cxx.

sdet_nms::sdet_nms	(	const sdet_nms_params &	nsp,
		const vil_image_view< double > &	dir_x,
		const vil_image_view< double > &	dir_y,
		const vil_image_view< double > &	grad_mag
	)

Constructor from a parameter block, gradient magnitudes given as an image and gradients given as component images.

Constructor from a parameter block, gradient magnitudes given as an image and directions given as component image.

Definition at line 37 of file sdet_nms.cxx.

sdet_nms::~sdet_nms ( ) [inline]

Destructor.

Definition at line 98 of file sdet_nms.h.

Member Function Documentation

void sdet_nms::apply ( ) [inline]

apply NMS to the given data (do not collect any edgel tokens).

Definition at line 111 of file sdet_nms.h.

void sdet_nms::apply	(	bool	collect_tokens,
		vcl_vector< vgl_point_2d< double > > &	loc,
		vcl_vector< double > &	orientation,
		vcl_vector< double > &	mag
	)

apply NMS to the given data (also collect edgel tokens).

Definition at line 58 of file sdet_nms.cxx.

void sdet_nms::apply	(	bool	collect_tokens,
		vcl_vector< vgl_point_2d< double > > &	loc,
		vcl_vector< double > &	orientation,
		vcl_vector< double > &	mag,
		vcl_vector< double > &	d2f
	)

Definition at line 70 of file sdet_nms.cxx.

void sdet_nms::apply	(	bool	collect_tokens,
		vcl_vector< vgl_point_2d< double > > &	loc,
		vcl_vector< double > &	orientation,
		vcl_vector< double > &	mag,
		vcl_vector< double > &	d2f,
		vcl_vector< vgl_point_2d< int > > &	pix_loc
	)

Apply the algorithm.

Definition at line 83 of file sdet_nms.cxx.

void sdet_nms::clear ( )

Clear internal storage.

Definition at line 438 of file sdet_nms.cxx.

vbl_array_2d<double>& sdet_nms::deriv ( ) [inline]

return the array containing the second deriv map.

Definition at line 108 of file sdet_nms.h.

void sdet_nms::f_values	(	int	x,
		int	y,
		const vgl_vector_2d< double > &	direction,
		double	s,
		int	face_num,
		double *	f
	)

Definition at line 236 of file sdet_nms.cxx.

void sdet_nms::find_distance_s_and_f_for_point	(	int	x,
		int	y,
		vgl_homg_line_2d< double >	line,
		double &	d,
		double &	s,
		const vgl_vector_2d< double > &	direction
	)