Noise Filtering Sample

The Computer Vision API provides different noise filtering strategies.

The sample <install-prefix>/share/metavision/sdk/cv/samples/metavision_noise_filtering/metavision_noise_filtering.cpp shows how to use Metavision SDK CV module to apply different noise filtering strategies. In addition, it shows how to capture keys pressed in a display window used to modify the behavior of the stages while the pipeline is running.

The following filters can be applied via keyboard keys:

• a - Metavision::ActivityFilterAlgorithm

• t - Metavision::TrailFilterAlgorithm

• s - Metavision::SpatioTemporalContrastAlgorithm

Expected Output

The sample visualizes CD events after filtering (here, we applied Activity Filter):

How to start

First, compile the sample as described in this tutorial.

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

Linux

./metavision_noise_filtering

Windows

metavision_noise_filtering.exe

To start the sample based on recorded data, provide the full path to a RAW file (here, we use the file from Metavision Dataset):

Linux

./metavision_noise_filtering -i monitoring_40_50hz.raw

Windows

metavision_noise_filtering.exe -i monitoring_40_50hz.raw

To check for additional options:

Linux

./metavision_noise_filtering -h

Windows

metavision_noise_filtering.exe -h