optical flow

In the release document, DeepStream_4.0.2_Release_Notes_Unified.pdf
it was mentioned following plugins are added

where are they? how can I use them?

  1. Gst-nvof, a new Gst plugin for optical flow Gst-nvofvisual, a new plugin for visualizing optical flow output Gst-nvsegvisual, a new plugin for visualizing segmentation model output

Have you checked https://docs.nvidia.com/metropolis/deepstream/plugin-manual/index.html#page/DeepStream_Plugin_Manual%2Fdeepstream_plugin_details.02.09.html