Code Samples & Applications

Metavision Designer samples

Name	Description	Level	Module
Data Viewer using HAL	Streams data from an event-based camera or from a RAW file using Metavision HAL	Easy	Core
Dat File Reader	Reads DAT-formatted file and displays events on the screen	Easy	Core
RAW To Video Converter	Converts events from RAW file to AVI video	Easy	Core
Data Rate	Demonstrates how to read events from RAW or DAT file using PythonConsumer and how to visualize the data rate	Medium	Core
Data Filtering	Filters events and displays them on the screen	Easy	CV
Optical Flow	Computes the sparse optical flow for moving objects	Medium	CV
3D Data Viewer	Displays data from an event-based camera in a xyt axis	Advanced	3DView
Vibration Estimation	Estimates vibration frequency per pixel and shows the dominant frequency (the most common frequency among all pixels)	Advanced	Analytics
Object Counting	Counts small objects moving vertically (e.g. bulk counting)	Advanced	Analytics
Generic Tracking	Tracks any moving object	Advanced	Analytics
Sparkle Tracking	Tracks simple non-colliding objects	Advanced	Analytics

Metavision SDK samples & applications

Name	Description	Level	Module	Application or Sample*
Data Viewer	Displays data from an event-based camera or from a RAW file using SDK Driver API	Easy	Driver	Application
Data Viewer using HAL	Displays data from an event-based camera or from a RAW file using Metavision HAL	Easy	Core	Sample
Software info	Prints information on the installed software (e.g. software version)	Easy	Base	Application
RAW Mosaic Viewer	Combines multiple sources of events (from several RAW files) and results of their filtering into the same displayed frame	Easy	Driver	Sample
RAW to CSV Converter	Converts RAW file to CSV-formatted file	Easy	Driver	Sample
RAW To DAT Converter	Converts RAW file to DAT-formatted file	Easy	Driver	Application
RAW File Info	Gets information about RAW file and prints it to console	Easy	Driver	Application
Data Filtering	Filters events (ROI + polarity) and displays them on the screen	Easy	Core	Sample
Data Noise Filtering	Filters events with a noise filter Activity, Trail or STC) and displays them on the screen	Easy	CV	Sample
Composed Viewer	Filters events and shows both unfiltered and filtered events	Easy	Core	Sample
CSV Viewer	Reads CSV-formatted file and displays events on the screen	Easy	Core	Sample
RAW To Video Converter	Converts events from RAW file to AVI video	Easy	Core	Application
Undistortion	Demonstrates how to undistort and distort events	Medium	CV	Sample
Optical Flow	Computes the sparse optical flow for moving objects	Medium	CV	Sample
Focusing	Helps to focus an event-based camera using a blinking pattern	Advanced	Calibration	Application
Calibration	Estimates intrinsics parameters of an event-based camera using a blinking pattern	Advanced	Calibration	Application
Vibration Estimation	Estimates vibration frequency per pixel and shows the dominant frequency (the most common frequency among all pixels)	Advanced	Analytics	Sample
Object Counting	Counts small objects moving vertically (e.g. bulk counting)	Advanced	Analytics	Sample
Generic Tracking	Tracks any moving object	Advanced	Analytics	Sample
Sparkle Tracking	Tracks simple non-colliding objects	Advanced	Analytics	Sample

HAL samples & applications

Name	Description	Level	Application or Sample*
HAL Ls	Lists all connected Prophesee devices	Easy	Sample
Platform Info	Prints information on the platform, connected Prophesee devices, and installed software (useful for debug)	Medium	Application
RAW File Cutter	Cuts RAW file from/to given time	Medium	Application
HAL Viewer	Visualizes events from event-based cameras	Advanced	Sample

Standalone samples

Name	Description	Level	Path to the sample Paths start with <install-prefix>/share/metavision/
EVT2 RAW File decoder	Decodes an EVT 2.0 format RAW file and writes the decoded events in a CSV file	Medium	/samples/metavision_evt2_raw_file_decoder.cpp
EVT3 RAW File decoder	Decodes an EVT 3.0 format RAW file and writes the decoded events in a CSV file	Medium	/samples/metavision_evt3_raw_file_decoder.cpp

Note that there is difference between applications and samples:

• samples are aimed at demonstrating concepts as simple as possible, they serve as tutorials, and they are delivered as source code only;

• applications are useful tools which solve specific needs (e.g. focusing, calibration, data conversion, debugging, etc.); they are delivered as pre-compiled binaries (ready for execution) and source code (to be able to look at more complex examples).

<install-prefix> depends on your Operating System and installation:

• on Linux, the default install prefix is /usr directory

• on Windows, the default install prefix is C:\Program Files\Prophesee