Project Structure
In Supervisely all data and annotations are stored inside individual projects which themselves consist of datasets with files in them, and Project Meta - series of classes and tags.
When downloaded, each project is converted into a folder that stores meta.json file containing Project Meta, dataset folders with the individual annotation files (and optionally the original data files) in them. This allows you to seamlessly cycle data between Supervisely and local storage with the use of Supervisely Format import plugin, if you so require.
This structure remains the same for every type of project in Supervisely.
Project Structure System
Project Folder
On the top level we have Project folders, these are the elements visible on the main Supervisely dashboard. Inside them, they can contain only Datasets and Project Meta information, all other data has to be stored a level below in a Dataset. All datasets within a project have to contain content of the same category.
Project Meta
Project Meta contains the essential information about the project - Classes and Tags. These are defined project-wide and can be used for labeling in every dataset inside the current project.
Datasets
Datasets are the second level folders inside the project, they host the individual data files and their annotations.
Items
Every data file in the project has to be stored inside a dataset. Each file as its own set of annotations.
Downloaded Project Structure
All projects downloaded from Supervisely maintain the same basic structure, with the contents varying based on which download option you chose.
Download Archive
When you select one of the download option, the system automatically creates an archive with the following name structure: project_name.tar
Downloaded Project
All projects downloaded from Supervisely have the following structure:
Root folder for the project named project name
meta.jsonfileobj_class_to_machine_color.jsonfile (optional, for image annotation projects)key_id_map.jsonfile (optional)Dataset folders, each named
dataset_name, which contains:annfolder, contains annotation files, each namedsource_media_file_name.jsonfor the corresponding fileimg(videoorpointcloud) folder, contains source mediametaoptional folder, contains corresponding JSON files with metadata for imagesmasks_humanoptional folder for image annotation projects, contains .png files with annotations marked on themmasks_machineoptional folder for image annotation projects, contains .png files with machine annotations
Project structure example
The following structure is an example of a project with 3 datasets, each containing 3 images with annotations, and also meta directory with metadata for each image.
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