Lesson 123 of 1234
An AI That Counts Coins by Looking
Some apps can look at a pile of coins through your camera and add them up.
Lesson map
What this lesson covers
Learning path
The main moves in order
- 1Look-and-Count
- 2computer vision
- 3object recognition
- 4counting
Concept cluster
Terms to connect while reading
Section 1
Look-and-Count
Pour your coins on a table. Aim a phone camera at them. With the right app, the screen will show a number — the total.
The AI was trained on thousands of coin photos. It learned the size, shape, and color of each kind of coin. Then it counts them, like you would, but much faster.
When it works well
- Good light
- Coins not stacked on top of each other
- All from the same country
The big idea: AI can count coins by looking, but it's a guess. Spread them out and check it yourself.
End-of-lesson quiz
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15 questions · Score saves to your progress.
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