CNN based approach for activity recognition using a wrist-worn accelerometer

Panwar, Madhuri and Ram Dyuthi, S and Chandra Prakash, K and Biswas, Dwaipayan and Acharyya, Amit and Maharatna, Koushik and Gautam, Arvind and Naik, Ganesh R (2017) CNN based approach for activity recognition using a wrist-worn accelerometer. In: 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC, 11-15 July, 2017, International Convention Center (ICC)Jeju Island; South Korea.

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Abstract

In recent years, significant advancements have taken place in human activity recognition using various machine learning approaches. However, feature engineering have dominated conventional methods involving the difficult process of optimal feature selection. This problem has been mitigated by using a novel methodology based on deep learning framework which automatically extracts the useful features and reduces the computational cost. As a proof of concept, we have attempted to design a generalized model for recognition of three fundamental movements of the human forearm performed in daily life where data is collected from four different subjects using a single wrist worn accelerometer sensor. The validation of the proposed model is done with different pre-processing and noisy data condition which is evaluated using three possible methods. The results show that our proposed methodology achieves an average recognition rate of 99.8% as opposed to conventional methods based on K-means clustering, linear discriminant analysis and support vector machine.

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