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Unit 5-Computer Vision
School Revise · Class 10 Artificial Intelligence · Unit 5
Computer Vision
Code 417, Class 10. 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 domain of AI that lets a machine understand images and video.
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. A grayscale image uses shades of grey only.
2. Features and CNN
The machine looks for features like edges and shapes. A Convolutional Neural Network (CNN) is a model that learns these features to recognise objects in images.
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 a pixel are …
red, green and blue (RGB).
3. A model that learns image features is a …
CNN (Convolutional Neural Network).
4. An image using only shades of grey is …
grayscale.
Practice set B, short answer
1. What is computer vision?
The domain 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. What is a CNN used for?
Learning image features to recognise objects.
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) values; a grayscale image uses shades of grey. The machine finds features like edges, and a Convolutional Neural Network (CNN) learns these features to recognise objects. Uses include face unlock, self-driving cars and reading text. |
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These free Class 10 Artificial Intelligence (Code 417) notes explain computer vision, pixels and RGB, grayscale, features and the CNN model, 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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