Eye to Screen Distance Measurement With Computer Vision 👀💻

• This project is to calculate the distance between your eyes and laptop screen using the webcam.

• The concept is that an object will appear smaller once it is further away from the camera and vice versa.

• The distance between your eyes (pixel) will be used as the reference object and will get converted into the distance (cm) to the laptop screen.

• Ergonomics tip: laptop screen should be positioned at least 20 inches (51 cm) away from your eyes.

---

How to run this app

📝Note: For quick testing jump straight to Step-2

Step-1:

• In distance_calculator.py, create an instance of DistanceCalculator class and call run_config() instance method

if __name__ == '__main__':
    eye_screen_distance = DistanceCalculator()
    eye_screen_distance.run_config()

• The webcam will start working and the distance between the user's eyes (pixel) will show up.

• Using a measuring tape, take a few measurements (cm) between your eye and laptop screen, then jot them down along with the corresponding distance between eyes (pixel).

• Take a minimum of five measurements and different locations and save them to distance_xy.csv.

• click letter K on the keyboard to stop the webcam.

• This is a one-time step and no need to do it again after updating distance_xy.csv.

Step-2:

• In distance_calculator.py, read distance_xy.csv file, create an instance of DistanceCalculator class and call calculate_distance() instance method

if __name__ == '__main__':
    distance_df = pd.read_csv('distance_xy.csv')
    eye_screen_distance = DistanceCalculator()
    eye_screen_distance.calculate_distance(distance_df['distance_pixel'], distance_df['distance_cm'])

• click letter K on the keyboard to stop the webcam.

---

Author

• Name: Ahmed Abdulrahman
• Researcher/Data Scientist/Engineer
• Email: ahmedabdulrahman419@gmail.com