ev::RefractoryPeriodFilter Class Reference

Refractory period filter for event rate limiting. More...

#include <filtering.hpp>

Public Member Functions
	RefractoryPeriodFilter (const cv::Size &size, ev::TimeType dt)
	RefractoryPeriodFilter (const RefractoryPeriodFilter &)=default
	RefractoryPeriodFilter (RefractoryPeriodFilter &&) noexcept=default
RefractoryPeriodFilter &	operator= (const RefractoryPeriodFilter &)=default
RefractoryPeriodFilter &	operator= (RefractoryPeriodFilter &&) noexcept=default
void	setDt (const ev::TimeType dt)
	Set the inhibition time.
bool	operator() (const ev::Event &e)

Detailed Description

Refractory period filter for event rate limiting.

Inhibits each pixel for dt time units after one of its events is accepted, so no pixel can fire faster than \( 1/dt \).

Note

T. Delbruck, R. Graca and M. Paluch, "Feedback control of event cameras"

Constructor & Destructor Documentation

RefractoryPeriodFilter()

ev::RefractoryPeriodFilter::RefractoryPeriodFilter	(	const cv::Size &	size,
		ev::TimeType	dt )

Constructor.

Parameters

size	Sensor resolution (width x height)
dt	Inhibition time; events fired before this time has elapsed since the last accepted event of the same pixel are discarded

Member Function Documentation

operator()()

bool ev::RefractoryPeriodFilter::operator() ( const ev::Event & e )

nodiscard

Test and record a single event.

Parameters

e	Event to evaluate

Returns

True if the event passes (its pixel has been idle for at least dt)

Note

The internal timestamp map is updated only when the event passes.

setDt()

void ev::RefractoryPeriodFilter::setDt ( const ev::TimeType dt )

inline

Set the inhibition time.

Parameters

dt	Inhibition time; events fired before this time has elapsed since the last accepted event of the same pixel are discarded

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The documentation for this class was generated from the following files:

• modules/evproc/include/openev/evproc/filtering.hpp
• modules/evproc/src/filtering.cpp