done by runway.ml even at 20 meters above the accuracy and prediction are good using semantic segmentation detectron2
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https://www.youtube.com/watch?v=1fVmiEfkLjY
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part -1 video link is here
https://youtu.be/eBXLPjDh95Y
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https://www.youtube.com/watch?v=296GSRgDVW4