SADActor

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Full Library / Algorithmic / Image Processing / VideoProcessing / SADActor
Block Name: SADActor (SumofAbsoluteDifferences)

java.lang.Object
extended by VisualSim.kernel.util.NamedObj
VisualSim.kernel.InstantiableNamedObj
VisualSim.kernel.Entity
VisualSim.kernel.ComponentEntity
VisualSim.actor.AtomicActor
VisualSim.actor.TypedAtomicActor
extended by VisualSim.actor.lib.video.SumofAbsoluteDifferences

All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, VisualSim.actor.Actor, VisualSim.actor.Executable, VisualSim.actor.TypedActor, VisualSim.kernel.util.Changeable, VisualSim.kernel.util.Debuggable, VisualSim.kernel.util.DebugListener, VisualSim.kernel.util.Derivable, VisualSim.kernel.util.Instantiable, VisualSim.kernel.util.ModelErrorHandler, VisualSim.kernel.util.MoMLExportable, VisualSim.kernel.util.Moveable, VisualSim.kernel.util.Nameable

public class SumofAbsoluteDifferencesextends VisualSim.actor.TypedAtomicActor

Calculate the sum of absolute difference(SAD) between two blocks. Each input block should have two dimensions by rectangle block(16 by 16, 8 by 8, etc.). The output port will have the result of SAD.

Since:
VisualSim 7.0
See Also:
Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class VisualSim.kernel.Entity

VisualSim.kernel.Entity.ContainedObjectsIterator

Field Summary
protected int	_blockSize Description of the variable.
VisualSim.data.expr.Parameter	blockSize BlockSize parameter.
VisualSim.actor.TypedIOPort	currentImageBlock Input for tokens to be a part of current frame.
VisualSim.actor.TypedIOPort	previousImageBlock Input for tokens to be a part of previous frame.
VisualSim.actor.TypedIOPort	sumAbsoluteDifference Output port.

Fields inherited from class VisualSim.actor.AtomicActor

_stopRequested, Block_Documentation

Fields inherited from class VisualSim.kernel.util.NamedObj

_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS

Fields inherited from interface VisualSim.actor.Executable

COMPLETED, NOT_READY, STOP_ITERATING

Constructor Summary
SumofAbsoluteDifferences(VisualSim.kernel.CompositeEntity container, java.lang.String name) Construct an actor in the specified container with the specified name.

Method Summary
java.lang.Object	clone(VisualSim.kernel.util.Workspace workspace) Override the base class to set type constraints on the ports.
void	fire() If there is at least one token on the input ports, add tokens from the plus port, subtract tokens from the minus port, and send the result to the output port.
void	preinitialize()

Methods inherited from class VisualSim.actor.TypedAtomicActor

_addPort, attributeTypeChanged, clone, newPort, typeConstraintList

Methods inherited from class VisualSim.actor.AtomicActor

_createReceivers, connectionsChanged, getDirector, getExecutiveDirector, getFunctionDependency, getManager, initialize, inputPortList, isFireFunctional, isStrict, iterate, newReceiver, outputPortList, postfire, prefire, pruneDependencies, removeDependency, setContainer, stop, stopFire, terminate, wrapup

Methods inherited from class VisualSim.kernel.ComponentEntity

_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName

Methods inherited from class VisualSim.kernel.Entity

_description, _exportMoMLContents, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName

Methods inherited from class VisualSim.kernel.InstantiableNamedObj

_setParent, exportMoML, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition

Methods inherited from class VisualSim.kernel.util.NamedObj

_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _debug, _debug, _debug, _debug, _debug, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, attributeChanged, attributeList, attributeList, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttributes, getChangeListeners, getClassName, getDerivedLevel, getDerivedList, getDisplayName, getFullName, getModelErrorHandler, getName, getName, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, message, propagateValue, propagateValues, removeChangeListener, removeDebugListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspace

Methods inherited from class java.lang.Object

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

Methods inherited from interface VisualSim.actor.Actor

getDirector, getExecutiveDirector, getFunctionDependency, getManager, inputPortList, newReceiver, outputPortList

Methods inherited from interface VisualSim.actor.Executable

initialize, isFireFunctional, isStrict, iterate, postfire, prefire, stop, stopFire, terminate, wrapup

Methods inherited from interface VisualSim.kernel.util.Nameable

description, getContainer, getDisplayName, getFullName, getName, getName, setName

Methods inherited from interface VisualSim.kernel.util.Derivable

getDerivedLevel, getDerivedList, propagateValue

Field Detail

previousImageBlock

public VisualSim.actor.TypedIOPort previousImageBlock

Input for tokens to be a part of previous frame. This is a single port, and its type is 2D array.

currentImageBlock

public VisualSim.actor.TypedIOPort currentImageBlock

Input for tokens to be a part of current frame. This is a single port, and its type is 2D array.

sumAbsoluteDifference

public VisualSim.actor.TypedIOPort sumAbsoluteDifference

Output port. This is a result for calculating sum of absolute differences between ImgBlockA and ImgBlockB. The type is inferred form the connections.

blockSize

public VisualSim.data.expr.Parameter blockSize

BlockSize parameter. This is given by a number of elements in a block. Macro Block in

_blockSize

protected int _blockSize

Description of the variable.

Constructor Detail

SumofAbsoluteDifferences

public SumofAbsoluteDifferences(VisualSim.kernel.CompositeEntity container,
java.lang.String name)
throws VisualSim.kernel.util.IllegalActionException,
VisualSim.kernel.util.NameDuplicationException

Construct an actor in the specified container with the specified name.

Parameters:
container - The container.
name - The name of this adder within the container.
Throws:
VisualSim.kernel.util.IllegalActionException - If the actor cannot be contained by the proposed container.
VisualSim.kernel.util.NameDuplicationException - If the name coincides with an actor already in the container.

Method Detail

clone

public java.lang.Object clone(VisualSim.kernel.util.Workspace workspace)
throws java.lang.CloneNotSupportedException

Override the base class to set type constraints on the ports.
Overrides:

clone in class VisualSim.actor.AtomicActor

Parameters:

workspace - The workspace into which to clone.
Returns:
A new instance of AddSubtract.
Throws:
java.lang.CloneNotSupportedException - If a derived class contains an attribute that cannot be cloned.

fire

public void fire()
throws VisualSim.kernel.util.IllegalActionException

If there is at least one token on the input ports, add tokens from the plus port, subtract tokens from the minus port, and send the result to the output port. At most one token is read from each channel, so if more than one token is pending, the rest are left for future firings. If none of the input channels has a token, do nothing. If none of the plus channels have tokens, then the tokens on the minus channels are subtracted from a zero token of the same type as the first token encountered on the minus channels.
Specified by: