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A toolkit for annotating contours and boundaries on the cortical surface.

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cortex-annotate

A toolkit for annotating contours and boundaries on the cortical surface.

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Author

Noah C. Benson <[email protected]>

License

MIT

About

The cortex-annotate repository is designed to be an easy-to-use toolkit for MRI researchers who study the human brain to annotate boundaries and contours on the cortical surface. Because any two research projects that require boundaries or annotations are unlikely to be substantially similar, the toolkit is highly flexible and must be customized using a standard file that combines yaml and Python.

The cortex-annotate tool has been designed to make publicly storing datasets of contours straightforward. This design is based on the workflow developed for the hcp-annot-vc repository. A typical workflow for the use of cortex-annotate to annotate a single brain area as part of a project proceeds as follows:

  1. The project lead forks the cortex-annotate repository and edits the forked repository to document relevant metadata (name, description, etc.). This forked repository becomes the main repository for the specific annotation project.
    • As part of the customization, the project lead will edit the config/config.yaml file, which contains all the configuration details for dataset that is to be annotated by the tool.
    • In particular, this configuration file will include all the relevant Python code for creating 2D projections or flatmaps of the brain on which the contours are drawn; see the README in the config directory of this repository for more information.
  2. Once the forked repository has been customized, individual GitHub users will fork the main repository into their own GitHub accounts.
  3. Each individual user then clones their fork of the main repository on their local computers and runs the docker-compose up command. This starts a docker container that runs a Jupyter notebook containing the annotation tool itself. The tool reads from the config/config.yaml file to determine how to present the relevant relevant annotation images.
  4. Individual users interact with the annotation tool in the Jupyter notebook using the mouse and a few keys to click on contours points. These contours are saved into JSON files in the repository directory; the file names are specified in the config/config.yaml file, and the directory is determined in part by the users's GitHub username.
  5. When a user has finished (or partially finished) annotating the dataset, they exit the tool and can submit their contours to their GitHub repository using git commit and git push. When they are finished with their contours, they can open a pull request to the data branch of the main repository in order to submit their annotations back to the project lead. Because the annotations are placed in the data branch, the main branch remains clean and can be quickly forked by new annotators.

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A toolkit for annotating contours and boundaries on the cortical surface.

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