Dragonfly can be split into 3 components:

• a camera (USB, built-in, network connected) that sends the video stream to the computing unit that runs the Dragonfly Application.
• a computing unit (on which it runs the Dragonfly Application) that receives the video stream from the camera and computes the camera’s position.
• a web interface (Dragonfly Web User Interface) that is accessed with a browser and that is used to configure and monitor the Dragonfly Application.

The 3 components are completely separated. This makes Dragonfly highly versatile and lets you choose between different architectures all described in the next sections.

On board local computation

Built-in/USB camera directly connected to the machine that runs the Dragonfly App.

• PRO: ​there is no latency in the video stream and thus the performances are high.

Off-board local computation

Network camera that makes available its video stream using a Wi-Fi local network to the machine that runs the Dragonfly App.

• PRO: the device equipped with the camera does NOT need a computing unit with specific requirements.
• CONS: if the Wi-Fi network is not robust enough, there could be a latency in the video stream and thus the performances could be compromised.