Add Gen2 Gaze example

[VanDavv]

Gaze estimation

This example demonstrates how to run 3 stage inference on DepthAI using Gen2 Pipeline Builder

Origina OpenVINO demo, on which this example was made, is here

Demo

Pre-requisites

1. Purchase a DepthAI model (see shop.luxonis.com)
2. Install requirements

   python3 -m pip install -r requirements.txt
   

Usage

usage: main.py [-h] [-nd] [-cam] [-vid VIDEO]

optional arguments:
  -h, --help            show this help message and exit
  -nd, --no-debug       Prevent debug output
  -cam, --camera        Use DepthAI 4K RGB camera for inference (conflicts with -vid)
  -vid VIDEO, --video VIDEO
                        Path to video file to be used for inference (conflicts with -cam)

To use with a video file, run the script with the following arguments

python3 main.py -vid ./demo.py

To use with DepthAI 4K RGB camera, use instead

python3 main.py -cam