Package edu.gsu.cs.dmlab.tracking.stages

Class BaseUpperStage

java.lang.Object

edu.gsu.cs.dmlab.tracking.stages.BaseUpperStage

All Implemented Interfaces:

ISTProcessingStage

Direct Known Subclasses:

StageThree, StageTwo

public class BaseUpperStage
extends Object
implements ISTProcessingStage

Is the base of the second and third stages in the iterative tracking algorithm of Kempton et. al 2015 and 2018.

Author:

Thaddeus Gholston and Dustin Kempton Data Mining Lab, Georgia State University

Field Summary

Fields

Modifier and Type	Field	Description
protected int	maxFrameSkip

Constructor Summary

Constructors

Constructor	Description
BaseUpperStage(ISTSearchAreaProducer predictor, ISTEventTrackingFactory factory, ISTTrackingTrajectoryIndexer tracksIdxr, ISTTrackingEventIndexer evntIdxr, int maxFrameSkip, int stage, int numThreads)	Constructor

Method Summary

Modifier and Type	Method	Description
void	finalize()
List<ISTTrackingTrajectory>	process()	Returns a list of ISTTrackingTrajectory that were produced from the process.

Methods inherited from class java.lang.Object

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

Field Detail

maxFrameSkip

protected int maxFrameSkip

Constructor Detail

BaseUpperStage

public BaseUpperStage(ISTSearchAreaProducer predictor,
                      ISTEventTrackingFactory factory,
                      ISTTrackingTrajectoryIndexer tracksIdxr,
                      ISTTrackingEventIndexer evntIdxr,
                      int maxFrameSkip,
                      int stage,
                      int numThreads)

Constructor

Parameters:

predictor - Used for predicting the location of an event given its current location and an elapsed time period.

factory - Factory used to create new objects needed to process the tracks at this stage.

tracksIdxr - Indexer of the current tracks to process in this stage.

evntIdxr - Indexer of all events taken as input into the program at the beginning. This is mostly used to determine the observation probability in the association problem.

maxFrameSkip - The maximum number of skipped frames allowed between a detection and its possible association match.

stage - The stage that this base is the base of. It tells the association problem's edge weight calculator how to calculate the edge weights as stage 2 is different than 3+.

numThreads - The number of threads to use when processing batch. -1 for all available > 0 for a specific number.

Method Detail

finalize

public void finalize()
              throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

process

public List<ISTTrackingTrajectory> process()

Description copied from interface: ISTProcessingStage

Returns a list of ISTTrackingTrajectory that were produced from the process.

Specified by:

process in interface ISTProcessingStage

Returns:

The list of ISTTrackingTrajectory that were produced from the process.