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130 lines
3.7 KiB
Markdown
130 lines
3.7 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
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Label is a type of an annotated object (e.g. person, car, vehicle, etc.)
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---
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## Attribute
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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
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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
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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
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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
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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
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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
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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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## Mode
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### Interpolation
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Mode for video annotation, which uses [`track`](#track) objects.
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Only objects on keyframes are manually annotation, and intermediate frames are linearly interpolated.
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Related sections:
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- [Track mode](/docs/manual/basics/track-mode-basics/)
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### Annotation
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Mode for images annotation, which uses `shape` objects.
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Related sections:
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- [Shape mode](/docs/manual/basics/shape-mode-basics/)
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---
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## Dimension
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Depends on the task data type that is defined when the [task is created](/docs/manual/basics/creating_an_annotation_task/).
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### 2D
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The data format of 2d tasks are images and videos.
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Related sections:
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- [Creating an annotation task](/docs/manual/basics/creating_an_annotation_task/)
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### 3D
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The data format of 3d tasks is a cloud of points.
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[Data formats for a 3D task](/docs/manual/basics/creating_an_annotation_task/#data-formats-for-a-3d-task)
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Related sections:
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- [3D task workspace](/docs/manual/basics/3d-task-workspace/)
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- [Standard 3D mode](/docs/manual/basics/standard-3d-mode-basics/)
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- [3D Object annotation](/docs/manual/basics/3d-object-annotation-basics/)
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---
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## State
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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
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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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## Subset
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A project can have subsets. Subsets are groups for tasks that make it easier to work with the dataset.
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It could be `test`, `train`, `validation` or custom subset.
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---
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## Credentials
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Under `credentials` is understood `Key & secret key`, `Account name and token`, `Anonymous access`, `Key file`.
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Used to [attach cloud storage](/docs/manual/basics/attach-cloud-storage/#attach-new-cloud-storage).
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---
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## Resource
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Under `resource` is understood `bucket name` or `container name`.
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Used to [attach cloud storage](/docs/manual/basics/attach-cloud-storage/#attach-new-cloud-storage).
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