Using an RGB-D (depth) camera, detect people and measure the distance to them. Originally created as a safety device for construction equipment: https://www.kanamoto.co.jp/recommend/naccident/
- Intel RealSense depth camera
- librealsense (https://github.com/IntelRealSense/librealsense.git)
- darknet (https://github.com/pjreddie/darknet.git)
- OpenCV