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Image Similitude search allows you to find in the archive similar images using a certain track or an image.
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- Set the search interval (see Setting a search interval).
- Select the Image Search Similitude search type (see Selecting the search type).
- Select a search method:
- Search for a similar image by track:
- Select a track by left-clicking an object in the Surveillance window (1). When you use image Similitude search, the image track is highlighted and its dimensions are displayed in the Surveillance window. The track image is displayed in the Image Search Similitude search type window (2).
- Enter the minimum level of similarity (in percent) of the selected track with images in the archive (3). The search results display only those videos that have images with a similarity level greater than the specified one. To remove a track from the search, click the
button.
- Select a track by left-clicking an object in the Surveillance window (1). When you use image Similitude search, the image track is highlighted and its dimensions are displayed in the Surveillance window. The track image is displayed in the Image Search Similitude search type window (2).
- Search for a similar image by image:
- Select an image that is similar to the image you want to find in the archive (4). Supported formats: png, jpg, jpeg, jpe. If no image is selected, the search results display all images recognized within the specified time range. To clear the search criteria, click the button.
Enter the minimum level of similarity (in percent) of the selected image with images in the archive (3). The search results display only those videos that have images with a similarity level greater than the specified one.
Info title Note When you search for a person, make sure that the track or image displays the person in full height. If the image is not complete, then incorrect recognitions can be included in the search results.
If the search does not give required results at the selected level of similarity, then reduce its value. Note that lowering the similarity level below 50% can lead to incorrect recognitions.
- Select an image that is similar to the image you want to find in the archive (4). Supported formats: png, jpg, jpeg, jpe. If no image is selected, the search results display all images recognized within the specified time range. To clear the search criteria, click the
- Search for a similar image by track:
- Select the type of search results sorting:
—by similarity level; 
—by time (5). Click the Search button.
Info title Note Once you start the search, you can stop it at any time. To do this, click the Stop button, which is displayed in place of the Search button.
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The image is saved to the folder specified in the settings (see Configuring export options).
Use case for
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Similitude search
AI analytics extracts human appearance metadata and stores it in a database. Sorting through metadata sourced from multiple cameras, an intelligent algorithm identifies and presents similar individuals. Having said that, if a person is wearing a backpack, bag, or hat for example, the engine searches for people who have these same characteristics.
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