ch.unizh.ini.jaer.projects.robothead.retinacochlea
Class LEDTracker

java.lang.Object
  net.sf.jaer.eventprocessing.EventFilter
      net.sf.jaer.eventprocessing.EventFilter2D
          ch.unizh.ini.jaer.projects.robothead.retinacochlea.LEDTracker

All Implemented Interfaces:

java.util.Observer, FrameAnnotater

public class LEDTracker
extends EventFilter2D
implements java.util.Observer, FrameAnnotater

This class divides the incoming Events into Retina and Cochlea Events. The Retina Events are tracked by an enclosed RectangularClusterTracker, and the Cluster information is provided. the cochlea Events are converted to normal Cochlea Events (y value-64) and passed on to the next filter...

Author:

jaeckeld

Field Summary

static RectangularClusterTracker.Cluster

LED

Fields inherited from class net.sf.jaer.eventprocessing.EventFilter2D

enclosedFilter, out

Fields inherited from class net.sf.jaer.eventprocessing.EventFilter

annotationEnabled, chip, enclosedFilterChain, filterEnabled, log, perf, propertyTooltipMap, support

Constructor Summary

LEDTracker(AEChip chip)
Creates a new instance of RetinaCochleaFilter

Method Summary

void	annotate(float[][][] frame) not used
void	annotate(javax.media.opengl.GLAutoDrawable drawable) Each annotator enters annotate with graphics context current, in coordinates with pixel 0,0 in LL corner (note opposite from Java2D) and pixel spacing 1 unit after the scaling transform (which is already active).
void	annotate(java.awt.Graphics2D g) not used
EventPacket<?>	filterPacket(EventPacket<?> in) Subclasses implement this method to define custom processing.
java.lang.Object	getFilterState() should return the filter state in some useful form
RectangularClusterTracker.Cluster	getLED()
float	getMaxSizeChange()
float	getMinEventRate()
int	getMinLifeTime()
void	initFilter() this should allocate and initialize memory: it may be called when the chip e.g.
boolean	isDoTracking()
boolean	isLEDRecognized()
void	resetFilter() should reset the filter to initial state
void	setDoTracking(boolean set)
void	setMaxSizeChange(float maxSizeChange)
void	setMinEventRate(float minEventRate)
void	setMinLifeTime(int minLifeTime)
void	update(java.util.Observable o, java.lang.Object arg)

Methods inherited from class net.sf.jaer.eventprocessing.EventFilter2D

checkOutputPacketEventType, checkOutputPacketEventType, getEnclosedFilter, resetOut, setEnclosedFilter, setFilterEnabled

Methods inherited from class net.sf.jaer.eventprocessing.EventFilter

getChip, getDescription, getEnclosedFilterChain, getEnclosingFilter, getPrefs, getPropertyChangeSupport, getPropertyTooltip, isAnnotationEnabled, isEnclosed, isFilterEnabled, prefsEnabledKey, setAnnotationEnabled, setChip, setEnclosed, setEnclosedFilter, setEnclosedFilterChain, setEnclosingFilter, setPreferredEnabledState, setPrefs, setPropertyTooltip

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.sf.jaer.graphics.FrameAnnotater

isAnnotationEnabled, setAnnotationEnabled

Field Detail

LED

public static RectangularClusterTracker.Cluster LED

Constructor Detail

LEDTracker

public LEDTracker(AEChip chip)

Creates a new instance of RetinaCochleaFilter

Method Detail

filterPacket

public EventPacket<?> filterPacket(EventPacket<?> in)

Description copied from class: EventFilter2D

Subclasses implement this method to define custom processing.

Specified by:

filterPacket in class EventFilter2D

Parameters:

in - the input packet

Returns:

the output packet

annotate

public void annotate(javax.media.opengl.GLAutoDrawable drawable)

Description copied from interface: FrameAnnotater

Each annotator enters annotate with graphics context current, in coordinates with pixel 0,0 in LL corner (note opposite from Java2D) and pixel spacing 1 unit after the scaling transform (which is already active). The FrameAnnotater then can use JOGL calls to render to the screen by getting the GL context, e.g. the following code, used in the context of an AEChip object, draws a golden lines from LL to UR of the pixel array.

        GL gl = drawable.getGL();
        gl.glBegin(GL.GL_LINES);
        gl.glColor3f(.5f, .5f, 0);
        gl.glVertex2f(0, 0);
        gl.glVertex2f(getSizeX() - 1, getSizeY() - 1);
        gl.glEnd();
 

Specified by:

annotate in interface FrameAnnotater

Parameters:

drawable - the OpenGL drawable components, e.g., GLCanvas

annotate

public void annotate(float[][][] frame)

not used

Specified by:

annotate in interface FrameAnnotater

Parameters:

frame - the RGB pixel information. First dimension is Y, second is X, third is RGB

annotate

public void annotate(java.awt.Graphics2D g)

not used

Specified by:

annotate in interface FrameAnnotater

Parameters:

g - the Graphics2D context

getFilterState

public java.lang.Object getFilterState()

Description copied from class: EventFilter

should return the filter state in some useful form

Specified by:

getFilterState in class EventFilter

getMinEventRate

public float getMinEventRate()

setMinEventRate

public void setMinEventRate(float minEventRate)

getMinLifeTime

public int getMinLifeTime()

setMinLifeTime

public void setMinLifeTime(int minLifeTime)

getMaxSizeChange

public float getMaxSizeChange()

setMaxSizeChange

public void setMaxSizeChange(float maxSizeChange)

resetFilter

public void resetFilter()

Description copied from class: EventFilter

should reset the filter to initial state

Specified by:

resetFilter in class EventFilter

initFilter

public void initFilter()

Description copied from class: EventFilter

this should allocate and initialize memory: it may be called when the chip e.g. size parameters are changed after creation of the filter

Specified by:

initFilter in class EventFilter

update

public void update(java.util.Observable o,
                   java.lang.Object arg)

Specified by:

update in interface java.util.Observer

isLEDRecognized

public boolean isLEDRecognized()

setDoTracking

public void setDoTracking(boolean set)

isDoTracking

public boolean isDoTracking()

getLED

public RectangularClusterTracker.Cluster getLED()