Smart Classroom

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  Demo in a classroom with blackboard

Inspiration

If you ever take 251 or 213, you will notice a photographer sitting at the back of the classroom, recording the lecture. The main purpose of the recording is to help students review the learning materials after class and also to share knowledge with students not in the classroom. Now with Smart Classroom, this process can be automated.

What it does

Combining hardware and computer vision, Smart Classroom is able to track the teacher in the classroom, automatically records what the teacher writes on the blackboard and what the teacher says in the lecture. Keywords and highlights from lecture will also be extracted from recording to provide a better learning experience after class.

How we built it

Raspberry Pi + Servo + OpenCV

Challenges we ran into

Control issues with servo, detection precision with OpenCV and limited computing resources on embedded system.

Accomplishments that we're proud of

This is the first hardware hack we accomplished. We spent much time in the lab do wiring and soldering.

List of prizes we are eligible for

Student Senate’s Social Impact Prize (“Best hack that improves CMU student life”)

Duolingo’s Social Impact Prize (Educational)

GoDaddy’s Social Impact Prize (“Best app that improves STEM education”)

Google’s Social Impact Prize (“Most likely to make tangible and lasting change”)

Built With

• nltk
• opencv
• raspberry-pi
• servo