#include "smt.h"

Defines
#define	MAX_ID_EX 65535
#define	MAXLABEL 10000
#define	FALSE 0
#define	TRUE 1
#define	ELEM(x, i, j) x[((i)*mt_ncol_proc) + (j)]
#define	NO_GESTURE -1
Functions
void	runsmtwin32 (int x, int y, int ntouch)
void	addtouch (int x, int y)
void	gonext (void)
int	computedist2 (int x1, int y1, int x2, int y2)
int	flick (void)
int	rotate (void)
int	rotate_old (void)
int	scale (void)
void	event_to_string (char *s, int e)
void	state_machine (void)
void	initeventlist (void)
void	print_touchevent (int event_index)
void	notifyevent (int eventid, TOUCHBLOB touch, TOUCHEVENT tevent, int event_index, float x, float y, float dx, float dy, int num_touch, int info)
void	initblob (TOUCHBLOB *b)
void	copyblob (TOUCHBLOB src, TOUCHBLOB dest)
void	initsmt (void)
void	setoffset (void)
void	preprocessing (void)
void	savearray (FILE fp, const char filename, int *x, int n)
void	savesnapshot (void)
unsigned char	ucminarray (unsigned char *x, int n)
signed char	scminarray (signed char *x, int n)
unsigned char	ucmaxarray (unsigned char *x, int n)
float	favgarray (int *x, int n)
void	meanfilter (int Iy, int Ix, int numrow, int numcol, int n)
void	meanfilter_threshold (int Iy, int Ix, int numrow, int numcol, int n, int apply_filter_threshold)
float	fminarray (float *x, int n)
float	fmaxarray (float *x, int n)
unsigned int	uimin (unsigned int x, unsigned int y)
unsigned int	uimax (unsigned int x, unsigned int y)
void	cclabel (void)
void	blobprops (void)
void	runsmt (void)
void	identtouch (void)
void	tracktouch (void)
int	iminarray (int *x, int n)
int	imaxarray (int *x, int n)
void	imresizenearest (int x, int nrowx, int ncolx, int y, int nrowy, int ncoly)
void	imresizebilinear (int x, int nrowx, int ncolx, int y, int nrowy, int ncoly)
void	imresizebicubic (int x, int nrowx, int ncolx, int y, int nrowy, int ncoly)
int	ilimit (int x, int l, int u)
float	flimit (float x, float l, float u)
float	interpcc (float v1, float v2, float v3, float v4, float d)
float	ucmse (unsigned char x, unsigned char y, int n)
float	fpower (float a, int b)
void	icopyarray (int src, int dst, int nlength)
void	copyeventlist (TOUCHEVENT src, TOUCHEVENT dst, int n)
void	computecaliparams (float x, float y, float xd, float yd, float *cali)
float	computecalipos (float x, float y, float a, float b, float c)
float	linearscale (float x, float min_x, float max_x, float min_y, float max_y)
void	gesture_recognition (void)
void	cwise2rwise (int src, int dst, int row, int col)
void	rwise2cwise (int src, int dst, int row, int col)
void	backgroundfiltering (unsigned char src, unsigned char dst, int row, int col)
Variables
int	mt_do_smoothing = TRUE
int	mt_do_highpass = TRUE
int	mt_do_smoothing2 = TRUE
int	mt_ncol_sensor
	original size of sensor (of columns of camera or pad)
int	mt_nrow_sensor
	original size of sensor (of rows of camera or pad)
int	mt_ncol_proc
int	mt_nrow_proc
int	mt_masksize
	Filter size of smoothing filter.
int	mt_masksize1
	Filter size of edge detection filter.
float	mt_min_amplification_range
float	mt_max_amplification_range
int	mt_max_sensor
	Max value of sensor data, usually 255.
int	mt_npower
int	mt_bwthreshold1
	Obsolete.
int	mt_bwthreshold2
	Upper bound of amplification result.
int	mt_th_min_area
int	mt_th_max_area
	mt_th_min_area < VALID_TOUCH_SIZE < mt_th_max_area
float	mt_th_dist2
	Threshold to determine if a touch point moves or not.
int	mt_sensor_data [MAXCOL *MAXROW]
int	mt_sensor_data_temp [MAXCOL *MAXROW]
int	mt_resized [MAXCOL *MAXROW]
int	mt_offset [MAXCOL *MAXROW]
int	mt_diff [MAXCOL *MAXROW]
	After background filter.
int	mt_smoothing [MAXCOL *MAXROW]
int	mt_highpass [MAXCOL *MAXROW]
int	mt_highpass_smoothing [MAXCOL *MAXROW]
	Edge detection. Useful for DI system.
float	mt_amplification [MAXCOL *MAXROW]
int	mt_BW [MAXCOL *MAXROW]
int	mt_LABEL [MAXCOL *MAXROW]
	Labeling result.
int	LABEL_MAP [MAXCOL *MAXROW]
	Interim data for labeling.
int	result [MAXCOL *MAXROW]
	Obsolete.
int	mt_nlabel
	number of blobs
int	mt_ntouch
	number of valid touches
int	mt_noldtouch
	number of previous valid touches
int	mt_nevent = 0
	number of events for current time
int	mt_noldevent
	number of old events
int	mt_id_ex = 0
	counter to assign id_ex to a touch point
FILE *	fp_sensor_data
FILE *	fp_offset
FILE *	fp_diff
FILE *	fp_smoothing
FILE *	fp_highpass
FILE *	fp_highpass_smoothing
FILE *	fp_amplification
FILE *	fp_label
float	mt_calibration_params [6] = {1, 0, 0, 0, 1, 0}
int	mt_angle
float	mt_scale
int	mt_oldangle
float	mt_oldscale
float	mt_xmin_n
float	mt_xmax_n
float	mt_ymin_n
float	mt_ymax_n
int	mt_touch_state
int	mt_cnt_up
int	mt_cnt_ip
int	mt_cnt_down
int	mt_max_cnt_up
int	mt_max_cnt_ip
int	mt_max_cnt_down
unsigned int	label_map [MAXROW][MAXCOL] = {0, }

Define Documentation

#define ELEM	(	x,
		i,
		j
	)	x[((i)*mt_ncol_proc) + (j)]

#define FALSE 0

#define MAX_ID_EX 65535

#define MAXLABEL 10000

#define NO_GESTURE -1

#define TRUE 1

Function Documentation

void addtouch	(	int	x,
		int	y
	)

void backgroundfiltering	(	unsigned char *	src,
		unsigned char *	dst,
		int	row,
		int	col
	)

void blobprops ( void )

void cclabel ( void )

void computecaliparams	(	float *	x,
		float *	y,
		float *	xd,
		float *	yd,
		float *	cali
	)

float computecalipos	(	float	x,
		float	y,
		float	a,
		float	b,
		float	c
	)

int computedist2	(	int	x1,
		int	y1,
		int	x2,
		int	y2
	)

void copyblob	(	TOUCHBLOB *	src,
		TOUCHBLOB *	dest
	)

void copyeventlist	(	TOUCHEVENT *	src,
		TOUCHEVENT *	dst,
		int	n
	)

void cwise2rwise	(	int *	src,
		int *	dst,
		int	row,
		int	col
	)

void event_to_string	(	char *	s,
		int	e
	)

float favgarray	(	int *	x,
		int	n
	)

int flick ( void )

float flimit	(	float	x,
		float	l,
		float	u
	)

float fmaxarray	(	float *	x,
		int	n
	)

float fminarray	(	float *	x,
		int	n
	)

float fpower	(	float	a,
		int	b
	)

void gesture_recognition ( void )

void gonext ( void )

void icopyarray	(	int *	src,
		int *	dst,
		int	nlength
	)

void identtouch ( void )

int ilimit	(	int	x,
		int	l,
		int	u
	)

int imaxarray	(	int *	x,
		int	n
	)

int iminarray	(	int *	x,
		int	n
	)

void imresizebicubic	(	int *	x,
		int	nrowx,
		int	ncolx,
		int *	y,
		int	nrowy,
		int	ncoly
	)

void imresizebilinear	(	int *	x,
		int	nrowx,
		int	ncolx,
		int *	y,
		int	nrowy,
		int	ncoly
	)

void imresizenearest	(	int *	x,
		int	nrowx,
		int	ncolx,
		int *	y,
		int	nrowy,
		int	ncoly
	)

void initblob ( TOUCHBLOB * b )

void initeventlist ( void )

void initsmt ( void )

float interpcc	(	float	v1,
		float	v2,
		float	v3,
		float	v4,
		float	d
	)

float linearscale	(	float	x,
		float	min_x,
		float	max_x,
		float	min_y,
		float	max_y
	)

void meanfilter	(	int *	Iy,
		int *	Ix,
		int	numrow,
		int	numcol,
		int	n
	)

void meanfilter_threshold	(	int *	Iy,
		int *	Ix,
		int	numrow,
		int	numcol,
		int	n,
		int	apply_filter_threshold
	)

void notifyevent	(	int	eventid,
		TOUCHBLOB *	touch,
		TOUCHEVENT *	tevent,
		int	event_index,
		float	x,
		float	y,
		float	dx,
		float	dy,
		int	num_touch,
		int	info
	)

void preprocessing ( void )

void print_touchevent ( int event_index )

int rotate ( void )

int rotate_old ( void )

void runsmt ( void )

void runsmtwin32	(	int *	x,
		int *	y,
		int	ntouch
	)

void rwise2cwise	(	int *	src,
		int *	dst,
		int	row,
		int	col
	)

void savearray	(	FILE *	fp,
		const char *	filename,
		int *	x,
		int	n
	)

void savesnapshot ( void )

int scale ( void )

signed char scminarray	(	signed char *	x,
		int	n
	)

void setoffset ( void )

void state_machine ( void )

void tracktouch ( void )

unsigned char ucmaxarray	(	unsigned char *	x,
		int	n
	)

unsigned char ucminarray	(	unsigned char *	x,
		int	n
	)

float ucmse	(	unsigned char *	x,
		unsigned char *	y,
		int	n
	)

unsigned int uimax	(	unsigned int	x,
		unsigned int	y
	)

unsigned int uimin	(	unsigned int	x,
		unsigned int	y
	)

Variable Documentation

FILE* fp_amplification

FILE* fp_diff

FILE* fp_highpass

FILE* fp_highpass_smoothing

FILE* fp_label

FILE* fp_offset

FILE* fp_sensor_data

FILE* fp_smoothing

int LABEL_MAP[MAXCOL *MAXROW]

Interim data for labeling.

unsigned int label_map[MAXROW][MAXCOL] = {0, }

float mt_amplification[MAXCOL *MAXROW]

int mt_angle

int mt_BW[MAXCOL *MAXROW]

int mt_bwthreshold1

Obsolete.

int mt_bwthreshold2

Upper bound of amplification result.

float mt_calibration_params[6] = {1, 0, 0, 0, 1, 0}

int mt_cnt_down

int mt_cnt_ip

int mt_cnt_up

int mt_diff[MAXCOL *MAXROW]

After background filter.

int mt_do_highpass = TRUE

int mt_do_smoothing = TRUE

int mt_do_smoothing2 = TRUE

int mt_highpass[MAXCOL *MAXROW]

int mt_highpass_smoothing[MAXCOL *MAXROW]

Edge detection. Useful for DI system.

int mt_id_ex = 0

counter to assign id_ex to a touch point

int mt_LABEL[MAXCOL *MAXROW]

Labeling result.

int mt_masksize

Filter size of smoothing filter.

int mt_masksize1

Filter size of edge detection filter.

float mt_max_amplification_range

int mt_max_cnt_down

int mt_max_cnt_ip

int mt_max_cnt_up

int mt_max_sensor

Max value of sensor data, usually 255.

float mt_min_amplification_range

int mt_ncol_proc

int mt_ncol_sensor

original size of sensor (of columns of camera or pad)

int mt_nevent = 0

number of events for current time

int mt_nlabel

number of blobs

int mt_noldevent

number of old events

int mt_noldtouch

number of previous valid touches

int mt_npower

int mt_nrow_proc

int mt_nrow_sensor

original size of sensor (of rows of camera or pad)

int mt_ntouch

number of valid touches

int mt_offset[MAXCOL *MAXROW]

int mt_oldangle

float mt_oldscale

int mt_resized[MAXCOL *MAXROW]

float mt_scale

int mt_sensor_data[MAXCOL *MAXROW]

int mt_sensor_data_temp[MAXCOL *MAXROW]

int mt_smoothing[MAXCOL *MAXROW]

float mt_th_dist2

Threshold to determine if a touch point moves or not.

int mt_th_max_area

mt_th_min_area < VALID_TOUCH_SIZE < mt_th_max_area

int mt_th_min_area

int mt_touch_state

float mt_xmax_n

float mt_xmin_n

float mt_ymax_n

float mt_ymin_n

int result[MAXCOL *MAXROW]

Obsolete.

smt.c File Reference

Defines

Functions

Variables

Define Documentation

Function Documentation

Variable Documentation