SingleUserTracker

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

PREV CLASS NEXT CLASS

FRAMES NO FRAMES

SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

hmi.sensors.eyebox2.aggregate
Class SingleUserTracker

java.lang.Object
  hmi.sensors.eyebox2.aggregate.SingleUserTracker

All Implemented Interfaces:: XuukListener

public class SingleUserTracker
extends Object
implements XuukListener
extends Object
implements XuukListener

This interface exposes a simplified interpretation of the Eyebox data to an application. Using a Listener interface, the application can receive 3 events from this SingleUserTracker: - userAppeared - userDisappeared - userMoved Coordinates are between 0 and 1 - relative to the camera view. (0,0) is left bottom of camera image. Note that this concerns ONE SINGLE FACE, i.e. as far the application is concerned, there is at most one user present. Long term tracking of a single user in the presence of other users is hidden within this SingleUserTracker class. NOTE The application should call checkLostFace regularly! Only calling that method will notify the listener of lost faces... (alternative would have been an active thread in this class -- and I don't like that)

Author:: Dennis Reidsma

Field Summary
`private static float`	`camHeight`
`private static float`	`camWidth` resolution of camera
`private int`	`currentlyActiveFace` The face that is currently being tracked.
`private boolean`	`debug`
`private HashMap<Integer,EyePair>`	`eyes`
`private HashMap<Integer,Face>`	`faces`
`private JFrame`	`jframe`
`private boolean`	`lostFace` true iff we are tracking a face and have just lost it
`private long`	`lostTime` when did we lose the tracked face?
`private JEditorPane`	`outputEyes`
`private JEditorPane`	`outputFaces`
`private String`	`outputTextEyes`
`private String`	`outputTextFaces`
`private static long`	`RETAINFACETIME` Number of milisecs that face info is remembered when a face disappears for a short term...
`private boolean`	`showUI`
`private ArrayList<SingleUserTrackerListener>`	`singleUserTrackerListeners`
`private long`	`starttime`
`private XuukReader`	`xuukReader`

Constructor Summary
`SingleUserTracker(XuukReader xr)`

Method Summary
`void`	`addListener(SingleUserTrackerListener listener)`
`void`	`checkLostFace()` checks whether the currently tracked face, if any, has been lost for such a long time that a message should be sent.
`void`	`eyesChange(EyePair newEyepair)`
`void`	`eyesDisappeared(int id)`
`void`	`faceAppeared(Face face)`
`void`	`faceDisappeared(int id)`
`void`	`initUI()`
`void`	`newEyesPositions(ArrayList<EyePair> newEyes)`
`void`	`newFacePositions(ArrayList<Face> newFaces)`
`void`	`removeListener(SingleUserTrackerListener listener)`
`void`	`setText()` Update the UI, for debugging purposes
`void`	`toggleUI()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

RETAINFACETIME

private static final long RETAINFACETIME

Number of milisecs that face info is remembered when a face disappears for a short term...

See Also:: Constant Field Values

starttime

private long starttime

camWidth

private static final float camWidth

resolution of camera

See Also:: Constant Field Values

camHeight

private static final float camHeight

See Also:: Constant Field Values

faces

private HashMap<Integer,Face> faces

eyes

private HashMap<Integer,EyePair> eyes

currentlyActiveFace

private int currentlyActiveFace

The face that is currently being tracked. Even when the face disappears for a few seconds, we need to remember its ID in case the face comes back.

lostFace

private boolean lostFace

true iff we are tracking a face and have just lost it

lostTime

private long lostTime

when did we lose the tracked face?

debug

private boolean debug

xuukReader

private XuukReader xuukReader