Cedalion is a new Python-based toolbox designed for advanced multimodal fNIRS analysis and Diffuse Optical Tomography (DOT) that can be collaboratively expanded by the community. The toolbox is developed by our lab in close collaboration with the BOAS Lab at the BU Neurophotonics Center. Cedalion is currently work in progress and will be launched in time for the SfNIRS Conference in Birmingham, UK, in September 2024.

Cedalion aims to integrate core features of HOMER3 and AtlasViewer for fNIRS data analysis and image reconstruction while tapping into the rich Python ecosystem of modern tools for data analysis, machine learning, and multimodal integration. It will provide user-extensible data structures that allow for easy exchange with frameworks such as PyTorch, SciKit-Learn and Pandas to simplify the integration of conventional fNIRS data processing streams and machine learning workflows. The toolbox relies on the BIDS and SNIRF standards to support the integration and data exchange with other toolboxes designed for the preprocessing and analysis of physiological recordings, behavioral measures and other neuroimaging modalities, further facilitating multimodal analysis.

Cedalion is growing on a weekly basis and will continue to do so for the next months and years. Our goal for it is to provide functionality in the following domains:

S-o-A- fNIRS preprocessing (mBLL conversion, quality assessment, artifact rejection, General Linear Model – GLM)
advanced methods for diffuse optical tomography (DOT), including image reconstruction and processing in image/voxel space
optode coregistration using photogrammetry
ML/AI methods for single-trial analysis, blind-source-separation, and advanced analysis
multimodal analysis of fNIRS/DOT with systemic physiology and other auxiliary signals

    Cedalion is community driven and it is important to us to design it from ground up to credit contributors and help them and their methods gain visibility once they incorporated into the framework. Come back soon to learn more, and please contact us if you are interested in early exchange on how to best spearhead your own (sub)packages for Cedalion.

    Education & Training

    Minicourse at the SfNIRS Conference in Birmingham (11-15.09.2024)

    Here you will find information and instructions for the minicourse in September. Please check back in a few months.
    If you want to learn more / sign up, you can do so on this [LINK]


    Git Repo: Here soon

    Documentation: Here soon


    The list of contributors is growing. If you would like to join us, please reach out to us!