Curriculum
Grade XII AI
Lessons
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Unit 1-Python Programming II
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Unit 2-Data Science Methodology (Capstone)
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Unit 3-Making Machines See
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Unit 4-AI with Orange Data Mining Tool
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Unit 5-Introduction to Big Data and Data Analytics
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Unit 6-Understanding Neural Networks
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Unit 7-Generative AI
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Unit 8-Data Storytelling
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Notes
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Work Sheets
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All Notes and All Worksheets
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Unit 3-Making Machines See
School Revise · Class 12 Artificial Intelligence · Unit 3
Making Machines See
Code 843, Class 12. Computer vision lets machines understand images. Here we learn how a computer sees a picture.
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What this unit is about
Computer Vision is the part of AI that lets a machine understand images and video, the way our eyes and brain do.
1. How a computer sees
To a computer an image is a grid of tiny dots called pixels. Each pixel has a colour, made of red, green and blue (RGB) values. The computer reads these numbers to understand the picture.
2. Finding features
The machine looks for features such as edges, shapes and patterns. A model called a neural network learns which features belong to which object.
3. Uses of computer vision
Computer vision is used for face unlock, self-driving cars, reading text from images, and checking products in factories.
Practise with the interactive
Explore the idea by tapping. The interactive opens right here in the lesson.
Practice set A, multiple choice
1. Tiny dots that make up an image are …
pixels.
2. The three colours in each pixel are …
red, green and blue (RGB).
3. Edges and shapes a machine looks for are …
features.
4. AI that lets a machine understand images is …
computer vision.
Practice set B, short answer
1. What is computer vision?
The part of AI that lets a machine understand images and video.
2. What is a pixel?
A tiny dot that makes up an image, with a colour.
3. Give two uses of computer vision.
Any two: face unlock, self-driving cars, reading text, checking products.
Quick summary
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Computer vision lets machines understand images and video. To a computer, an image is a grid of pixels, each with red, green and blue (RGB) colour values. The machine finds features like edges and shapes, and a neural network learns which features belong to which object. Uses include face unlock, self-driving cars and reading text from images. |
| Open the Virtual Lab |
These free Class 12 Artificial Intelligence (Code 843) notes explain computer vision, how a computer sees an image with pixels and RGB, finding features, and uses of computer vision with clear examples and practice, for CBSE students across India and the Gulf including the UAE, Saudi Arabia, Qatar, Oman, Kuwait and Bahrain.
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