SDK Algorithms Overview

All algorithms implemented in the SDK can be roughly grouped into categories based on their function.

Producers

Producers are algorithms producing data, for example by reading it from a file. They are generally used to produce data that will be processed by other algorithms.

Algorithm Name	Module
Metavision::FileProducerAlgorithm	Core
template<class EventType> Metavision::GenericProducerAlgorithm	Core
template<typename EventT, bool BOUNDED_MEMORY = true> Metavision::SharedEventsBufferProducerAlgorithm	Core
Metavision::SharedCdEventsBufferProducerAlgorithm	Core

Loggers

Loggers are algorithms processing data in order to write logs or compute statistics.

Algorithm Name	Module
Metavision::StreamLoggerAlgorithm	Core
Metavision::EventCounterAlgorithm	CV

Processors

Processors are algorithms that can be used to process data either to change some of their characteristics (e.g. flip the x coordinate of every event) or perform some advanced analysis (e.g. tracking objects or extracting spatio/temporal patterns).

Basic Processors

Algorithm Name	Module
Metavision::FlipXAlgorithm	Core
Metavision::FlipYAlgorithm	Core
Metavision::PolarityInverterAlgorithm	Core
Metavision::RotateEventsAlgorithm	CV
Metavision::TransposeEventsAlgorithm	CV

Advanced Processors

Algorithm Name	Module
Metavision::FrameGenerationAlgorithm	Core
template<typename Converter> Metavision::EventConverterAlgorithm	CV
Metavision::FlowFrameGeneratorAlgorithm	CV
Metavision::FrequencyAlgorithm	CV
Metavision::PeriodAlgorithm	CV
Metavision::SparseOpticalFlowAlgorithm	CV
Metavision::CountingAlgorithm	Analytics
template<typename T, typename V, V T::*v, typename precision_type = float> Metavision::DominantValueEventsAlgorithm	Analytics
template<typename precision_type = float> Metavision::DominantValueMapAlgorithm	Analytics
Metavision::FrequencyMapAsyncAlgorithm	Analytics
Metavision::HeatMapFrameGeneratorAlgorithm	Analytics
template<typename T, typename F, F T::*f> Metavision::MapGeneratorAsyncAlgorithm	Analytics
Metavision::PeriodMapAsyncAlgorithm	Analytics
Metavision::SpatterTrackerAlgorithm	Analytics
Metavision::TrackingAlgorithm	Analytics
Metavision::BlinkingDotsGridDetectorAlgorithm	Calibration
Metavision::BlinkingFrameGeneratorAlgorithm	Calibration
Metavision::DftHighFreqScorerAlgorithm	Calibration
Metavision::PinholeMonoCalibrator	Calibration

Filters

Filters are algorithms taking events as input and outputting only the events that satisfy certain conditions.

Algorithm Name	Module
Metavision::PolarityFilterAlgorithm	Core
Metavision::RoiFilterAlgorithm	Core
Metavision::ActivityFilterAlgorithm	CV
template<typename Use64Bits = std::true_type> Metavision::ActivityNoiseFilterAlgorithm	CV
Metavision::RoiMaskAlgorithm	CV
Metavision::SpatioTemporalContrastAlgorithm	CV
Metavision::TrailFilterAlgorithm	CV