de.unihalle.informatik.MiToBo.tracking.multitarget.algo

Class MultiObservationGenerator

java.lang.Object

de.unihalle.informatik.Alida.operator.ALDOperator

de.unihalle.informatik.MiToBo.tracking.multitarget.algo.MultiObservationGenerator

All Implemented Interfaces:

de.unihalle.informatik.Alida.datatypes.ALDConfigurationValidator, de.unihalle.informatik.Alida.operator.events.ALDOperatorExecutionProgressEventListener, EventListener

@ALDAOperator(genericExecutionMode=NONE,
              level=STANDARD)
public class MultiObservationGenerator
extends de.unihalle.informatik.Alida.operator.ALDOperator

Operator to create a (time) series of observations which can be used for evaluation of multi target tracking algorithms.

Author:

Oliver Gress

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	MultiObservationGenerator.GeneratorInfo

Nested classes/interfaces inherited from class de.unihalle.informatik.Alida.operator.ALDOperator

de.unihalle.informatik.Alida.operator.ALDOperator.HidingMode, de.unihalle.informatik.Alida.operator.ALDOperator.HistoryConstructionMode

Field Summary

Fields

Modifier and Type	Field and Description
double	delta_t
MultiObservationGenerator.GeneratorInfo	genInfo
double	lambdaBirth
double	lambdaClutter
double	lambdaDeath
int	maxTargetID
Jama.Matrix	modelTransition
short	nInitialTargets
int	nTimesteps
protected Vector<MultiState<MotionModelID>>	observations
protected ExponentialDistribution	Pdeath
double	pDetect
double	qsize
double	qxy
double	qxy_
protected Random	rand
long	randomSeed
double	rsize
double	rxy
double	sqrtSizeMax
double	sqrtSizeMin
double	xMax
double	xMin
double	yMax
double	yMin

Fields inherited from class de.unihalle.informatik.Alida.operator.ALDOperator

completeDAG, name, operatorExecutionEventlistenerList, portHashAccess, verbose, versionProvider

Constructor Summary

Constructors

Constructor and Description
MultiObservationGenerator()

Method Summary

Modifier and Type	Method and Description
protected LinearTransformGaussNoise[]	createDynamicModels()
protected MultiState<MotionModelID>	createInitialStates()
protected LinearTransformGaussNoise	createObservationModel()
protected MultiState<MotionModelID>	generateNextStates(MultiState<MotionModelID> X, LinearTransformGaussNoise[] dynamicModels)
protected MultiState<MotionModelID>	generateObservations(MultiState<MotionModelID> states, LinearTransformGaussNoise obsModel, MultiStateFactory<MotionModelID> obsFactory)
Vector<MultiState<MotionModelID>>	getObservations()
protected boolean	obsConflict(Jama.Matrix z, MultiState<MotionModelID> Z)
protected void	operate()
protected boolean	stateConflict(Jama.Matrix x, MultiState<MotionModelID> X)

Methods inherited from class de.unihalle.informatik.Alida.operator.ALDOperator

addOperatorExecutionProgressEventListener, addParameter, addParameter, addParameterUnconditioned, fieldContained, fireOperatorExecutionProgressEvent, getALDPortHashAccessKey, getConstructionMode, getDocumentation, getHidingMode, getInactiveParameterNames, getInInoutNames, getInInoutNames, getInNames, getInOutNames, getMissingRequiredInputs, getName, getNumParameters, getOutInoutNames, getOutNames, getParameter, getParameterDescriptor, getParameterDescriptorUnconditioned, getParameterNames, getParameterUnconditioned, getSupplementalNames, getVerbose, getVersion, handleOperatorExecutionProgressEvent, hasInOutParameters, hasParameter, isAnnotatedParameter, isConfigured, print, print, print, printInterface, printInterface, readHistory, readResolve, reinitializeParameterDescriptors, removeOperatorExecutionProgressEventListener, removeParameter, runOp, runOp, runOp, setConstructionMode, setConstructionMode, setConstructionMode, setHidingMode, setName, setParameter, setParameterUnconditioned, setVerbose, toStringVerbose, unconfiguredItems, validate, validateCustom, validateGeneric, writeHistory, writeHistory, writeHistory

Methods inherited from class java.lang.Object

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

Field Detail

observations

@Parameter(label="observations",
           required=false,
           direction=OUT,
           description="Generated observations")
protected Vector<MultiState<MotionModelID>> observations

pDetect

@Parameter(label="pDetect",
           required=true,
           direction=IN,
           description="Probability of detecting a target")
public double pDetect

lambdaClutter

@Parameter(label="lambdaClutter",
           required=true,
           direction=IN,
           description="Mean/variance of the Poisson distribution of the number of clutter observations")
public double lambdaClutter

lambdaBirth

@Parameter(label="lambdaBirth",
           required=true,
           direction=IN,
           description="Mean/variance of the Poisson distribution of the number of newborn targets")
public double lambdaBirth

lambdaDeath

@Parameter(label="lambdaDeath",
           required=true,
           direction=IN,
           description="Parameter of the exponential distribution of the survival of nonassociated targets")
public double lambdaDeath

delta_t

@Parameter(label="delta_t",
           required=false,
           direction=IN,
           description="time interval between two frames")
public double delta_t

xMin

@Parameter(label="xMin",
           required=true,
           direction=IN,
           description="x-min of the rectangular region where the observations reside in (e.g. for image creation)")
public double xMin

yMin

@Parameter(label="yMin",
           required=true,
           direction=IN,
           description="y-min of the rectangular region where the observations reside in (e.g. for image creation)")
public double yMin

xMax

@Parameter(label="xMax",
           required=true,
           direction=IN,
           description="x-max of the rectangular region where the observations reside in (e.g. for image creation)")
public double xMax

yMax

@Parameter(label="yMax",
           required=true,
           direction=IN,
           description="y-max of the rectangular region where the observations reside in (e.g. for image creation)")
public double yMax

sqrtSizeMin

@Parameter(label="minSqrtSize",
           required=true,
           direction=IN,
           description="Minimum radius for newborn observations")
public double sqrtSizeMin

sqrtSizeMax

@Parameter(label="maxSqrtSize",
           required=true,
           direction=IN,
           description="Maximum sqrt(size) for newborn observations")
public double sqrtSizeMax

nTimesteps

@Parameter(label="nTimesteps",
           required=true,
           direction=IN,
           description="Number of time steps (frames)")
public int nTimesteps

nInitialTargets

@Parameter(label="nInitialTargets",
           required=true,
           direction=IN,
           description="Number of initial targets")
public short nInitialTargets

modelTransition

@Parameter(label="modelTransition",
           required=true,
           direction=IN,
           description="A 2x2 markov matrix with probabilities of changing the dynamic models from time t-1 to t")
public Jama.Matrix modelTransition

qxy

@Parameter(label="qxy",
           required=true,
           direction=IN,
           description="Variance of the current x-/y-position in the process noise covariance matrix")
public double qxy

qxy_

@Parameter(label="qxy_",
           required=true,
           direction=IN,
           description="Variance of the last x-/y-position in the process noise covariance matrix")
public double qxy_

qsize

@Parameter(label="qsize",
           required=true,
           direction=IN,
           description="Variance of sqrt(size) in the process noise covariance matrix")
public double qsize

rxy

@Parameter(label="rxy",
           required=true,
           direction=IN,
           description="Variance of the current x-/y-position in the measurement noise covariance matrix")
public double rxy

rsize

@Parameter(label="rsize",
           required=true,
           direction=IN,
           description="Variance of sqrt(size) in the measurement noise covariance matrix")
public double rsize

randomSeed

@Parameter(label="randomSeed",
           required=true,
           direction=IN,
           description="A seed for the random number generator")
public long randomSeed

genInfo

@Parameter(label="genInfo",
           required=false,
           direction=OUT,
           description="Information about the generated observations")
public MultiObservationGenerator.GeneratorInfo genInfo

rand

protected Random rand

Pdeath

protected ExponentialDistribution Pdeath

maxTargetID

public int maxTargetID

Constructor Detail

MultiObservationGenerator

public MultiObservationGenerator()
                          throws de.unihalle.informatik.Alida.exceptions.ALDOperatorException

Throws:

de.unihalle.informatik.Alida.exceptions.ALDOperatorException

Method Detail

getObservations

public Vector<MultiState<MotionModelID>> getObservations()

operate

protected void operate()
                throws de.unihalle.informatik.Alida.exceptions.ALDOperatorException,
                       de.unihalle.informatik.Alida.exceptions.ALDProcessingDAGException

Specified by:

operate in class de.unihalle.informatik.Alida.operator.ALDOperator

Throws:

de.unihalle.informatik.Alida.exceptions.ALDOperatorException

de.unihalle.informatik.Alida.exceptions.ALDProcessingDAGException

createDynamicModels

protected LinearTransformGaussNoise[] createDynamicModels()

createObservationModel

protected LinearTransformGaussNoise createObservationModel()

createInitialStates

protected MultiState<MotionModelID> createInitialStates()

generateObservations

protected MultiState<MotionModelID> generateObservations(MultiState<MotionModelID> states,
                                                         LinearTransformGaussNoise obsModel,
                                                         MultiStateFactory<MotionModelID> obsFactory)

generateNextStates

protected MultiState<MotionModelID> generateNextStates(MultiState<MotionModelID> X,
                                                       LinearTransformGaussNoise[] dynamicModels)

stateConflict

protected boolean stateConflict(Jama.Matrix x,
                                MultiState<MotionModelID> X)

obsConflict

protected boolean obsConflict(Jama.Matrix z,
                              MultiState<MotionModelID> Z)