AI-900: Custom Vision Service: Object Detection, Training, and Video Analysis

Learn about the Custom Vision service in Azure AI, how it can be used to detect objects in images, train custom models with your own data, and why it cannot be used to analyze video files.

Question

For each of the following statements, select Yes if the statement is true. Otherwise, select No.

NOTE: Each correct selection is worth one point.

Statement 1: The Custom Vision service can be used to detect objects in an image.
Statement 2: The Custom Vision service requires that you provide your own data to train the model.
Statement 3: The Custom Vision service can be used to analyze video files.

Answer

Statement 1: The Custom Vision service can be used to detect objects in an image: Yes
Statement 2: The Custom Vision service requires that you provide your own data to train the model: Yes
Statement 3: The Custom Vision service can be used to analyze video files: No

Explanation

Box 1: Yes -Custom Vision functionality can be divided into two features. Image classification applies one or more labels to an image. Object detection is similar, but it also returns the coordinates in the image where the applied label(s) can be found. The Custom Vision service can be used to detect objects in an image by applying labels and bounding boxes to the regions of interest. You can use the Custom Vision web portal, SDK, or REST API to create and train an object detection model based on your own images and labels.

Box 2: Yes -The Custom Vision service uses a machine learning algorithm to analyze images. You, the developer, submit groups of images that feature and lack the characteristics in question. You label the images yourself at the time of submission. Then, the algorithm trains to this data and calculates its own accuracy by testing itself on those same images. The Custom Vision service requires that you provide your own data to train the model. You need to upload a set of images that contain the objects you want to detect and label them accordingly. The service will use these images to learn the visual characteristics of the objects and create a custom model.

Box 3: No -Custom Vision service can be used only on graphic files. The Custom Vision service can only be used to analyze image files, not video files. However, you can use other Azure AI services, such as Video Indexer or Video Analyzer, to process and analyze video content.

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