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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
The proposed 3DCNN + LSTM architecture. The middle part of the figure shows the model’s general architecture and both bottom and top represent how the 3DCNN layer implemented and the way of LSTM unit works with the gesture sequence, respectively.