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    Towards explainable abnormal infant movements identification: a body-part based prediction and visualisation framework

    McCay, KD, Ho, ESL, Sakkos, D, Woo, WL, Marcroft, C, Dulson, P and Embleton, ND (2021) Towards explainable abnormal infant movements identification: a body-part based prediction and visualisation framework. In: 2021 IEEE EMBS International Conference on Biomedical and Health Informatics (BHI), 27 July 2021 - 30 July 2021, Athens, Greece.

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    Abstract

    Providing early diagnosis of cerebral palsy (CP) is key to enhancing the developmental outcomes for those affected. Diagnostic tools such as the General Movements Assessment (GMA), have produced promising results in early diagnosis, however these manual methods can be laborious. In this paper, we propose a new framework for the automated classification of infant body movements, based upon the GMA, which unlike previous methods, also incorporates a visualization framework to aid with interpretability. Our proposed framework segments extracted features to detect the presence of Fidgety Movements (FMs) associated with the GMA spatiotemporally. These features are then used to identify the body-parts with the greatest contribution towards a classification decision and highlight the related body-part segment providing visual feedback to the user. We quantitatively compare the proposed framework's classification performance with several other methods from the literature and qualitatively evaluate the visualization's veracity. Our experimental results show that the proposed method performs more robustly than comparable techniques in this setting whilst simultaneously providing relevant visual interpretability.

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