Comparative Learning for Cross-Subject Finger Movement Recognition in Three Arm Postures via Data Glove
Reliable recognition of therapeutic hand and finger movements is a prerequisite for effective home-based rehabilitation, where patients must exercise without continuous therapist supervision. Inter-subject variability, stemming from differences in hand size, joint flexibility, and movement speed lim...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2025-01-01
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| Series: | IEEE Transactions on Neural Systems and Rehabilitation Engineering |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/11052880/ |
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| Summary: | Reliable recognition of therapeutic hand and finger movements is a prerequisite for effective home-based rehabilitation, where patients must exercise without continuous therapist supervision. Inter-subject variability, stemming from differences in hand size, joint flexibility, and movement speed limit the generalization of data-glove models. We present CLAPISA, a contrastive-learning framework that embeds a Siamese network into a CNN-LSTM spatiotemporal pipeline for cross-subject gesture recognition. Training employs a 1: 2 positive-to-negative pairing strategy and an empirically optimized margin of 1.0, enabling the network to form subject-invariant, rehabilitation-relevant embeddings. Evaluated on a bending-sensor dataset containing twenty young adults, CLAPISA attains an average accuracy of 96.71 % under leave-one-subject-out cross-validation outperforming five baseline models and reducing errors for the most challenging subjects by up to 12.3 %. Although current validation is limited to a young cohort, the framework’s data efficiency and subject-invariant design indicate strong potential for extension to elderly and neurologically impaired populations, our next work will be to collect such data for further verification. |
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| ISSN: | 1534-4320 1558-0210 |