Functions to sync optical and passive data with active_wire system. More...

#include "postprocess.h"
#include <algorithm>

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Functions
bool	IsOdd (const vector< double > i)
int	sync_opti_active (vector< vector< double > > &active_wire_data, vector< vector< double > > &optical_data, int num_opti_markers)
	Sync optical data with active_wire system.
int	filter_sync_passive_active (vector< vector< double > > active_wire_data, vector< vector< double > > &passive_wire_data)
	Filter and sync passive wire data with active wire data.
double	adj_labview_tmstamp (double tmstamp)
	Change from Labview epoch to UTC epoch.

Detailed Description

Functions to sync optical and passive data with active_wire system.

Function Documentation

double adj_labview_tmstamp ( double tmstamp )

Change from Labview epoch to UTC epoch.

Labview uses a different epoch for timestamps unlike UTC/Unix timestamps. This functions adjusts the Labview timestamps by adding the UTC value of the epoch 1/1/1904, 0:0:0 to Labview value.

Parameters:

[in,out] tmpstamp Number of seconds elapsed since epoch

Referenced by load_passive_data().

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int filter_sync_passive_active	(	vector< vector< double > >	active_wire_data,
		vector< vector< double > > &	passive_wire_data
	)

Filter and sync passive wire data with active wire data.

Change the timestamps from Labview format to UTC time, filter out the noise and discard all data taken before active_wire system has begun, and downsample from 1Khz to approx 100 Hz (synchronizing with active data)

Parameters:

[in]	active_wire_data	Active wire data needed to synchronize passive data
[in,out]	passive_wire_data	Passive wire data to remove spurious noise.

References extract_data_point(), and gsl_low_pass_filter_data().

Referenced by load_all_measures().

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bool IsOdd ( const vector< double > i )

Referenced by sync_opti_active().

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int sync_opti_active	(	vector< vector< double > > &	active_wire_data,
		vector< vector< double > > &	optical_data,
		int	num_opti_markers
	)

Sync optical data with active_wire system.

Active wire system has relatively low levels of measurement noise. Hence it is quite suitable for syncing optical data. This function would ideally perform best when used with readings of active wire 1,3 or 4. Function to be run before assigning optical data vector to tibia or femur structures

References first_local_extrema_vec(), IsOdd(), and opti_first_extrema().

Referenced by load_all_measures().

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