ESE111, Team 15, LectuRecorder

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Project summary

LectuRecorder is a lecture recording system with two key functionalities. First, the system follows the professor during the recording by rotating the webcam, making sure that the professor and the blackboard are always near the middle of the frame. Second, the professor can rotate the webcam from a remote and then take a photo of the blackboard. At the end of the recording, the user receives a folder photos taken, compilations of all equations boxed in red in the photos, and a LaTeX file that the user can paste the code into a LaTeX editor for high-quality lecture notes.

Inspiration

We saw low-quality lecture recordings in multiple classes and decided to make a better recording system.

What it does

LectuRecorder follows a professor, takes photos when commanded, and converts written math equations to a LaTeX file.

How we built it

We built LectuRecorder with a 1080p webcam, an Arduino, a control circuit (from our parts kit), and wood. LectuRecorder must be plugged into a personal computer to function.

Challenges we ran into

We initially tried to run this system with a brushless DC motor and a printed circuit board for a smoother recording. However, one pin on our PCB broke and caused the motor to malfunction, so we decided to use a servo motor.

Accomplishments that we're proud of

We liked how we integrated the hardware and software in the final product.

What we learned

We learned how to send data both from an Arduino to a computer and from a computer to an Arduino. We also learned how to integrate hardware with software and write code that combines data processing with actuator code.

What's next for Team 15 - LectuRecorder

If we improve this project in the future, we would try again with the PCB and brushless motor, and we would upgrade to a higher-quality webcam for more accurate conversion from far distances.

Built With

• c++
• opencv
• python