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64 lines
1.9 KiB
Markdown
64 lines
1.9 KiB
Markdown
---
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title: 'Vocabulary'
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linkTitle: 'Vocabulary'
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weight: 19
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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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**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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---
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**Trackable** object will be tracked automatically if the previous frame was
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a latest keyframe for the object. More details in the section [trackers](/docs/manual/advanced/ai-tools/#trackers).
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---
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**State** of the job. The state can be changed by an assigned user in [the menu inside the job](/docs/manual/basics/top-panel/).
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There are several possible states: `new`, `in progress`, `rejected`, `completed`.
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---
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**Stage** of the job. The stage is specified with the drop-down list on the [task page](/docs/manual/basics/tasks-page/).
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There are three stages: `annotation`, `validation` or `acceptance`. This value affects the task progress bar.
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---
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