Note

This Python sample is available with all Metavision Intelligence Plans. The corresponding C++ application is available as pre-compiled binaries (ready for execution) with all Metavision Intelligence Plans and as source code only with our Professional plan.

Data Rate Viewer using Python

The sample metavision_data_rate.py displays event rate from a live camera or DAT/RAW input file. It also allows you to filter noises via keyboard keys, including:

• A - metavision_sdk_cv.ActivityNoiseFilterAlgorithm

• S - metavision_sdk_cv.SpatioTemporalContrastAlgorithm

• F - metavision_sdk_cv.AntiFlickerAlgorithm

• C - apply metavision_sdk_cv.AntiFlickerAlgorithm and metavision_sdk_cv.SpatioTemporalContrastAlgorithm consecutively

• E - remove all filters

Expected Output

The sample visualizes CD event rate from an event-based device or a RAW/DAT file after filtering:

How to start

To start the sample based on a live stream from your camera, run:

Linux

python3 metavision_data_rate.py

Windows

python metavision_data_rate.py

To start the sample based on recorded data, provide the full path to a RAW or DAT file (Here, we use the file spinner.dat from our Sample Recordings):

Linux

python3 metavision_data_rate.py -i spinner.dat

Windows

python metavision_data_rate.py -i spinner.dat