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Questions and Answers
What are the two main topics covered in the agenda?
What are the two main topics covered in the agenda?
What are the three learning objectives after completing the module?
What are the three learning objectives after completing the module?
An image is represented as an array of pixel values.
An image is represented as an array of pixel values.
True
Filters are used to change images by applying a specific mathematical operation on individual pixels.
Filters are used to change images by applying a specific mathematical operation on individual pixels.
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Convolutional Neural Networks (CNNs) use filter layers to extract features from images and analyze them to make predictions.
Convolutional Neural Networks (CNNs) use filter layers to extract features from images and analyze them to make predictions.
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Multi-modal models are a newer approach to modeling, using multiple domains of data such as sound, images, and text.
Multi-modal models are a newer approach to modeling, using multiple domains of data such as sound, images, and text.
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Which of these is NOT included in the Image Analysis capabilities of the Azure AI Vision service?
Which of these is NOT included in the Image Analysis capabilities of the Azure AI Vision service?
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Which capabilities are included in Azure AI Vision's Face service?
Which capabilities are included in Azure AI Vision's Face service?
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Which resource type should be used in Azure to access both Azure AI Vision and Azure AI Language services with a single key and endpoint?
Which resource type should be used in Azure to access both Azure AI Vision and Azure AI Language services with a single key and endpoint?
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The following are capabilities of the Azure AI Vision service EXCEPT:
The following are capabilities of the Azure AI Vision service EXCEPT:
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What is the URL for accessing the image analysis instructions on Learn?
What is the URL for accessing the image analysis instructions on Learn?
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What is the URL for accessing the face detection instructions on Learn?
What is the URL for accessing the face detection instructions on Learn?
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What is the URL for accessing the OCR instructions on Learn?
What is the URL for accessing the OCR instructions on Learn?
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Which services are part of Azure AI Vision?
Which services are part of Azure AI Vision?
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The Face service, within Azure AI Vision, provides access to facial recognition capabilities such as similarity matching and identity verification for all users.
The Face service, within Azure AI Vision, provides access to facial recognition capabilities such as similarity matching and identity verification for all users.
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Study Notes
Microsoft Azure AI Fundamentals: Computer Vision
- This presentation covers Microsoft Azure AI Fundamentals: Computer Vision
- The agenda includes computer vision concepts and computer vision capabilities in Azure
- Learning objectives include understanding Azure AI Vision capabilities, identifying Azure AI Vision services, and describing face detection
Computer Vision Concepts
- Images are arrays of pixel values
- Filters are applied to images
Convolutional Neural Networks
- Labeled images are used to train the model
- Filter layers extract feature maps from each image
- Feature maps are flattened
- Feature values are fed into a fully connected neural network
- The output layer produces a probability value for each possible class label
- Filter kernels start with random weights during training
- Weights are adjusted to improve prediction accuracy
- The trained model uses learned weights to extract features from new images
Multi-modal Models
- Combine language and vision models to encode image and text data
- Encapsulates semantic relationships between image and text features
- Can be used as a foundation for more specialized models
Computer Vision Services in Azure
- Vision: Image Analysis (image tagging, captions, model customization), Optical Character Recognition (OCR), Spatial analysis
- Face: Face detection, Face recognition
Image Analysis 4.0 with the AI Vision Service
- Capabilities include model customization, reading text from images, detecting people and objects, generating image captions, tagging visual features, and smart cropping
Exercise: Analyze Images in Vision Studio
- Use the hosted environment and Azure credentials provided
- Instructions available on Learn at
https://aka.ms/ai900-image-analysis
Detecting Faces with the Face Service
- Detect faces, exposure, glasses, head pose, noise, occlusion
- Similarity matching and identity verification are available for managed Microsoft customers
Demo: Detect Faces in Vision Studio
- Demo exercise using Azure AI Face service
- Find exercise instructions at
https://aka.ms/ai900-face
Reading Text with Optical Character Recognition (OCR)
- Detect location and characters of printed/handwritten text
- Options for quick text extraction from images, or analysis of larger scanned documents
Demo: Read Text in Vision Studio
- Follow instructions at
https://aka.ms/ai900-ocrto use Azure AI Vision's OCR capabilities
Knowledge Check
- Question 1: Partially obscured faces cannot be identified
- Question 2: Create an Azure AI service
- Question 3: Face detection, OCR, and document intelligence are Azure AI Vision services
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Description
This quiz covers the fundamentals of computer vision within Microsoft Azure AI. It explores key concepts, capabilities, and techniques such as convolutional neural networks, face detection, and image processing methods. Test your knowledge on how Azure AI Vision services enhance computer vision tasks.
