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45 lines
1.3 KiB
Markdown
45 lines
1.3 KiB
Markdown
---
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title: 'Vocabulary'
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linkTitle: 'Vocabulary'
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weight: 14
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description: 'List of terms pertaining to annotation in CVAT.'
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---
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**Label** is a type of an annotated object (e.g. person, car, vehicle, etc.)
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**Attribute** is a property of an annotated object (e.g. color, model,
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quality, etc.). There are two types of attributes:
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- **Unique**: immutable and can't be changed from frame to frame (e.g. age, gender, color, etc.)
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- **Temporary**: mutable and can be changed on any frame (e.g. quality, pose, truncated, etc.)
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---
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**Track** is a set of shapes on different frames which corresponds to one object.
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Tracks are created in `Track mode`
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---
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**Annotation** is a set of shapes and tracks. There are several types of annotations:
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- _Manual_ which is created by a person
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- _Semi-automatic_ which is created mainly automatically, but the user provides some data (e.g. interpolation)
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- _Automatic_ which is created automatically without a person in the loop
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---
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**Approximation** allows you to reduce the number of points in the polygon.
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Can be used to reduce the annotation file and to facilitate editing polygons.
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