Detailed Description

MultiViewAssociator class is responsible for associating the objects across multiple views.

Definition at line 193 of file sources/libs/nvmultiobjecttracker/include/modules/MultiViewAssociator/MultiViewAssociator.hpp.

Inheritance diagram for MultiViewAssociator:

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Collaboration diagram for MultiViewAssociator:

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Public Member Functions
	MultiViewAssociator ()
	Construct an uninitialized multi-view associator. More...

	MultiViewAssociator (const std::string &configFilePath)
	Construct a multi-view associator from configuration. More...

	~MultiViewAssociator ()
	Report statistics and destroy the multi-view associator. More...

bool	isInitialized () override
	Check if the MultiViewAssociator is initialized. More...

void	initialize (const StreamId streamId, system_clock::time_point start, std::map< StreamId, std::shared_ptr< ICommunicator >> localInstanceCommunicators, std::shared_ptr< NvTrackedObjectList > egoTargets, std::shared_ptr< ObjectModelProjector > objModelProjector) override
	Initialize peer-target state and the communicator. More...

void	update (const NvMOTTimeMeta &timeMeta) override
	Synchronize the peer-target database with communicator messages. More...

bool	tryPeerReAssoc (std::shared_ptr< NvTrackedObject > target) override
	Try to reassociate a target with peer tracklets. More...

void	sendTracklet (std::shared_ptr< NvTrackedObject > target) override
	Send the tracklet using the communicator. More...

void	sendStates (std::shared_ptr< NvTrackedObject > target) override
	Send the states using the communicator. More...

void	sendAdoptedId (std::shared_ptr< NvTrackedObject > target, TargetId oldTargetId) override
	Send the AdoptedId message using the communicator. More...

void	sendSync () override
	Send the synchronization message using the communicator. More...

std::deque< const DetectedObjInfo * >	tryPeerDataAssoc (const std::deque< const DetectedObjInfo * > detObjs, const float minMatchingScore4PeerAssocIou) override
	Data association between ego detection and peer targets. More...

const PeerTargetDB	getPeerTargetDB () override
	Return the peer-target database. More...

std::shared_ptr< ICommunicator >	getCommunicator ()
	Return the communicator used for peer messages. More...

	MultiViewAssociator ()
	Construct an uninitialized multi-view associator. More...

	MultiViewAssociator (const std::string &configFilePath)
	Construct a multi-view associator from configuration. More...

	~MultiViewAssociator ()
	Report statistics and destroy the multi-view associator. More...

bool	isInitialized () override
	Check if the MultiViewAssociator is initialized. More...

void	initialize (const StreamId streamId, system_clock::time_point start, std::map< StreamId, std::shared_ptr< ICommunicator >> localInstanceCommunicators, std::shared_ptr< NvTrackedObjectList > egoTargets, std::shared_ptr< ObjectModelProjector > objModelProjector) override
	Initialize peer-target state and the communicator. More...

void	update (const NvMOTTimeMeta &timeMeta) override
	Synchronize the peer-target database with communicator messages. More...

bool	tryPeerReAssoc (std::shared_ptr< NvTrackedObject > target) override
	Try to reassociate a target with peer tracklets. More...

void	sendTracklet (std::shared_ptr< NvTrackedObject > target) override
	Send the tracklet using the communicator. More...

void	sendStates (std::shared_ptr< NvTrackedObject > target) override
	Send the states using the communicator. More...

void	sendAdoptedId (std::shared_ptr< NvTrackedObject > target, TargetId oldTargetId) override
	Send the AdoptedId message using the communicator. More...

void	sendSync () override
	Send the synchronization message using the communicator. More...

std::deque< const DetectedObjInfo * >	tryPeerDataAssoc (const std::deque< const DetectedObjInfo * > detObjs, const float minMatchingScore4PeerAssocIou) override
	Data association between ego detection and peer targets. More...

const PeerTargetDB	getPeerTargetDB () override
	Return the peer-target database. More...

std::shared_ptr< ICommunicator >	getCommunicator ()
	Return the communicator used for peer messages. More...

Constructor & Destructor Documentation

◆ MultiViewAssociator() [1/4]

MultiViewAssociator::MultiViewAssociator ( )

Construct an uninitialized multi-view associator.

◆ MultiViewAssociator() [2/4]

MultiViewAssociator::MultiViewAssociator ( const std::string & configFilePath )

Construct a multi-view associator from configuration.

Parameters

[in] configFilePath Path to the configuration file.

◆ ~MultiViewAssociator() [1/2]

MultiViewAssociator::~MultiViewAssociator ( )

Report statistics and destroy the multi-view associator.

◆ MultiViewAssociator() [3/4]

MultiViewAssociator::MultiViewAssociator ( )

Construct an uninitialized multi-view associator.

◆ MultiViewAssociator() [4/4]

MultiViewAssociator::MultiViewAssociator ( const std::string & configFilePath )

Construct a multi-view associator from configuration.

Parameters

[in] configFilePath Path to the configuration file.

◆ ~MultiViewAssociator() [2/2]

MultiViewAssociator::~MultiViewAssociator ( )

Report statistics and destroy the multi-view associator.

Member Function Documentation

◆ getCommunicator() [1/2]

std::shared_ptr<ICommunicator> MultiViewAssociator::getCommunicator ( )

inlinevirtual

Return the communicator used for peer messages.

Implements IMultiViewAssociator.

Definition at line 277 of file sources/libs/nvmultiobjecttracker/include/modules/MultiViewAssociator/MultiViewAssociator.hpp.

◆ getCommunicator() [2/2]

std::shared_ptr<ICommunicator> MultiViewAssociator::getCommunicator ( )

inlinevirtual

Return the communicator used for peer messages.

Implements IMultiViewAssociator.

Definition at line 277 of file 9.2/sources/libs/nvmultiobjecttracker/include/modules/MultiViewAssociator/MultiViewAssociator.hpp.

◆ getPeerTargetDB() [1/2]

const PeerTargetDB MultiViewAssociator::getPeerTargetDB ( )

overridevirtual

Return the peer-target database.

Implements IMultiViewAssociator.

◆ getPeerTargetDB() [2/2]

const PeerTargetDB MultiViewAssociator::getPeerTargetDB ( )

overridevirtual

Return the peer-target database.

Implements IMultiViewAssociator.

◆ initialize() [1/2]

void MultiViewAssociator::initialize	(	const StreamId	streamId,
		system_clock::time_point	start,
		std::map< StreamId, std::shared_ptr< ICommunicator >>	localInstanceCommunicators,
		std::shared_ptr< NvTrackedObjectList >	egoTargets,
		std::shared_ptr< ObjectModelProjector >	objModelProjector
	)

overridevirtual

Initialize peer-target state and the communicator.

Parameters

[in]	streamId	Stream identifier for the ego camera.
[in]	start	Reference start time for timestamp conversion.
[in]	localInstanceCommunicators	Communicators for local streams.
[in]	egoTargets	Ego-camera targets managed by the tracker.
[in]	objModelProjector	Projector used to recover world-space target state.

Implements IMultiViewAssociator.

◆ initialize() [2/2]

void MultiViewAssociator::initialize	(	const StreamId	streamId,
		system_clock::time_point	start,
		std::map< StreamId, std::shared_ptr< ICommunicator >>	localInstanceCommunicators,
		std::shared_ptr< NvTrackedObjectList >	egoTargets,
		std::shared_ptr< ObjectModelProjector >	objModelProjector
	)

overridevirtual

Initialize peer-target state and the communicator.

Parameters

[in]	streamId	Stream identifier for the ego camera.
[in]	start	Reference start time for timestamp conversion.
[in]	localInstanceCommunicators	Communicators for local streams.
[in]	egoTargets	Ego-camera targets managed by the tracker.
[in]	objModelProjector	Projector used to recover world-space target state.

Implements IMultiViewAssociator.

◆ isInitialized() [1/2]

bool MultiViewAssociator::isInitialized ( )

overridevirtual

Check if the MultiViewAssociator is initialized.

Returns: True if the multi-view associator is initialized.

Implements IMultiViewAssociator.

◆ isInitialized() [2/2]

bool MultiViewAssociator::isInitialized ( )

overridevirtual

Check if the MultiViewAssociator is initialized.

Returns: True if the multi-view associator is initialized.

Implements IMultiViewAssociator.

◆ sendAdoptedId() [1/2]

void MultiViewAssociator::sendAdoptedId	(	std::shared_ptr< NvTrackedObject >	target,
		TargetId	oldTargetId
	)

overridevirtual

Send the AdoptedId message using the communicator.

Parameters

[in]	target	Target whose adopted ID is sent.
[in]	oldTargetId	Previous target ID.

Implements IMultiViewAssociator.

◆ sendAdoptedId() [2/2]

void MultiViewAssociator::sendAdoptedId	(	std::shared_ptr< NvTrackedObject >	target,
		TargetId	oldTargetId
	)

overridevirtual

Send the AdoptedId message using the communicator.

Parameters

[in]	target	Target whose adopted ID is sent.
[in]	oldTargetId	Previous target ID.

Implements IMultiViewAssociator.

◆ sendStates() [1/2]

void MultiViewAssociator::sendStates ( std::shared_ptr< NvTrackedObject > target )

overridevirtual

Send the states using the communicator.

Parameters

[in] target Target whose states are serialized.

Implements IMultiViewAssociator.

◆ sendStates() [2/2]

void MultiViewAssociator::sendStates ( std::shared_ptr< NvTrackedObject > target )

overridevirtual

Send the states using the communicator.

Parameters

[in] target Target whose states are serialized.

Implements IMultiViewAssociator.

◆ sendSync() [1/2]

void MultiViewAssociator::sendSync ( )

overridevirtual

Send the synchronization message using the communicator.

Implements IMultiViewAssociator.

◆ sendSync() [2/2]

void MultiViewAssociator::sendSync ( )

overridevirtual

Send the synchronization message using the communicator.

Implements IMultiViewAssociator.

◆ sendTracklet() [1/2]

void MultiViewAssociator::sendTracklet ( std::shared_ptr< NvTrackedObject > target )

overridevirtual

Send the tracklet using the communicator.

Parameters

[in] target Target whose trajectory buffer is serialized.

Implements IMultiViewAssociator.

◆ sendTracklet() [2/2]

void MultiViewAssociator::sendTracklet ( std::shared_ptr< NvTrackedObject > target )

overridevirtual

Send the tracklet using the communicator.

Parameters

[in] target Target whose trajectory buffer is serialized.

Implements IMultiViewAssociator.

◆ tryPeerDataAssoc() [1/2]

std::deque<const DetectedObjInfo *> MultiViewAssociator::tryPeerDataAssoc	(	const std::deque< const DetectedObjInfo * >	detObjs,
		const float	minMatchingScore4PeerAssocIou
	)

overridevirtual

Data association between ego detection and peer targets.

Parameters

[in]	detObjs	Ego detections to match against peer targets.
[in]	minMatchingScore4PeerAssocIou	Minimum IoU required to match a detection to a peer target.

Returns: Detections that match a recent peer target.

Implements IMultiViewAssociator.

◆ tryPeerDataAssoc() [2/2]

std::deque<const DetectedObjInfo *> MultiViewAssociator::tryPeerDataAssoc	(	const std::deque< const DetectedObjInfo * >	detObjs,
		const float	minMatchingScore4PeerAssocIou
	)

overridevirtual

Data association between ego detection and peer targets.

Parameters

[in]	detObjs	Ego detections to match against peer targets.
[in]	minMatchingScore4PeerAssocIou	Minimum IoU required to match a detection to a peer target.

Returns: Detections that match a recent peer target.

Implements IMultiViewAssociator.

◆ tryPeerReAssoc() [1/2]

bool MultiViewAssociator::tryPeerReAssoc ( std::shared_ptr< NvTrackedObject > target )

overridevirtual

Try to reassociate a target with peer tracklets.

Parameters

[in] target Target to match.

Returns: True when peer reassociation succeeds.

Implements IMultiViewAssociator.

◆ tryPeerReAssoc() [2/2]

bool MultiViewAssociator::tryPeerReAssoc ( std::shared_ptr< NvTrackedObject > target )

overridevirtual

Try to reassociate a target with peer tracklets.

Parameters

[in] target Target to match.

Returns: True when peer reassociation succeeds.

Implements IMultiViewAssociator.

◆ update() [1/2]

void MultiViewAssociator::update ( const NvMOTTimeMeta & timeMeta )

overridevirtual

Synchronize the peer-target database with communicator messages.

Parameters

[in] timeMeta Current frame timing metadata.

Implements IMultiViewAssociator.

◆ update() [2/2]

void MultiViewAssociator::update ( const NvMOTTimeMeta & timeMeta )

overridevirtual

Synchronize the peer-target database with communicator messages.

Parameters

[in] timeMeta Current frame timing metadata.

Implements IMultiViewAssociator.

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

sources/libs/nvmultiobjecttracker/include/modules/MultiViewAssociator/MultiViewAssociator.hpp

NVIDIA DeepStream SDK API Reference

9.2 Release

Detailed Description

Public Member Functions

Constructor & Destructor Documentation

◆ MultiViewAssociator() [1/4]

◆ MultiViewAssociator() [2/4]

◆ ~MultiViewAssociator() [1/2]

◆ MultiViewAssociator() [3/4]

◆ MultiViewAssociator() [4/4]

◆ ~MultiViewAssociator() [2/2]

Member Function Documentation

◆ getCommunicator() [1/2]

◆ getCommunicator() [2/2]

◆ getPeerTargetDB() [1/2]

◆ getPeerTargetDB() [2/2]

◆ initialize() [1/2]

◆ initialize() [2/2]

◆ isInitialized() [1/2]

◆ isInitialized() [2/2]

◆ sendAdoptedId() [1/2]

◆ sendAdoptedId() [2/2]

◆ sendStates() [1/2]

◆ sendStates() [2/2]

◆ sendSync() [1/2]

◆ sendSync() [2/2]

◆ sendTracklet() [1/2]

◆ sendTracklet() [2/2]

◆ tryPeerDataAssoc() [1/2]

◆ tryPeerDataAssoc() [2/2]

◆ tryPeerReAssoc() [1/2]

◆ tryPeerReAssoc() [2/2]

◆ update() [1/2]

◆ update() [2/2]