UI for drawing a polygon examples in nodejs

Hello, I am working on a project where we need to build a centralized authenticated UI where the user can look into RSTP camera streams from Jetson from different buildings and draw/update tripline and polygons. I was looking for some code samples or guidance on the frontend and code to handle the new polygons.

(new with NVIDIA, Appreciate the help!)

You may consider use gstreamer. There is existing plugins to decode RTSP stream and get frame data. You can use NvBufSurface APIs to access the data and do process.