This snap uses a MobileNet SSD network to detect vehicles in a video stream, and then tracks them using the CSRT tracker algorithm implemented on OpenCV. The distance from the camera to the vehicles is then estimated by a simple formula using the bounding box for the vehicle and the camera's focal distance. The later is hard-coded in the code, so do not expect anything accurate: it is more of an example application.
The program is able to track multiple vehicles while still running the neural network for detections on the stream. Extensive multi-threading is used to accomplish this while at the same time trying to be as real-time as possible. This means that the trackers are fed with the latest available frames and some times older frames are not processed.
Sources can be found at https://github.com/alfonsosanchezbeato/car-distance-finder
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Snap can be installed from the command line on openSUSE Leap 15.x and Tumbleweed.
You need first add the snappy repository from the terminal. Choose the appropriate command depending on your installed openSUSE flavor.
Tumbleweed:
sudo zypper addrepo --refresh https://download.opensuse.org/repositories/system:/snappy/openSUSE_Tumbleweed snappy
Leap 15.x:
sudo zypper addrepo --refresh https://download.opensuse.org/repositories/system:/snappy/openSUSE_Leap_15.6 snappy
If needed, Swap out openSUSE_Leap_15. for, openSUSE_Leap_16.0 if you’re using a different version of openSUSE.
With the repository added, import its GPG key:
sudo zypper --gpg-auto-import-keys refresh
Finally, upgrade the package cache to include the new snappy repository:
sudo zypper dup --from snappy
Snap can now be installed with the following:
sudo zypper install snapd
You then need to either reboot, logout/login or source /etc/profile to have /snap/bin added to PATH.
Additionally, enable and start both the snapd and the snapd.apparmor services with the following commands:
sudo systemctl enable --now snapd
sudo systemctl enable --now snapd.apparmor
To install car-distance-finder, simply use the following command:
sudo snap install car-distance-finder
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