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arXiv 2409.08402cs.HC
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面向无障碍的定制化空中手势:一种用于多维生物信号手势的$B识别器

\$M Recognizer for User-Defined Mid-Air Gestures

Rice University(莱斯大学);University of Washington(华盛顿大学)

Momona Yamagami, Claire L. Mitchell, Alexandra A. Portnova-Fahreeva, Junhan Kong, H. Philo Katzman, Jennifer Mankoff, Jacob O. Wobbrock

AI总结:

针对生物信号手势识别需专业知识设计特征的问题,提出无需专业背景的$B识别器,通过重采样等处理降噪增强信号,在两类用户数据集上多数条件下优于传统方法,验证了无障碍生物信号接口的可行性。

摘要:

生物信号接口借助人体内部、体表或周围的传感器,有望增强可穿戴设备的交互能力,并改善运动障碍人群的设备可及性。然而,生物信号具有多模态、多维且含噪声的特点,需要领域专业知识来为手势分类器设计输入特征。$B识别器无需具备生物信号或算法领域的专业知识,即可实现空中手势识别。$B通过重采样、归一化和降维处理来降低噪声,并增强与识别相关的信号。我们在一个包含26名有上肢运动障碍的参与者和8名无障碍参与者的数据集上测试了$B,这些参与者执行基于个人能力的定制化手势。在用户依赖、手势表达变异性两种条件下,$B的表现优于我们的对比算法(使用专家设计特征的传统机器学习和深度学习),识别率超过95%。在用户独立条件下,针对障碍参与者,$B与深度学习的表现相当。我们的生物信号数据集已在网上公开。$B彰显了无障碍生物信号接口的潜力与可行性。

英文摘要:

User-defined mid-air gestures hold promise to customize device interactions to a user's preferences, cultural background, and physical abilities. This is especially true for individuals with upper-body motor disabilities, who may find standardized mid-air gestures inaccessible. However, the biosignals that enable such mid-air gesture recognition are multi-modal, multi-dimensional, and noisy, requiring domain expertise to design input features for gesture recognizers. The \$M-recognizer enables mid-air gesture recognition without needing expertise in biosignals or algorithms. \$M resamples, normalizes, and performs dimensionality reduction to reduce noise and enhance signals relevant to the recognition. We evaluated \$M on 26 participants with and 8 participants without upper-body motor disabilities performing user-defined ability-based gestures. For user-dependent and gesture articulation variability conditions, \$M outperformed our comparison algorithms (traditional machine learning with expert features and deep learning), with >95% recognition rate. We tested \$M's ease-of-implementation with six coders with minimal machine learning experience. Participants implemented $M 53% faster and with 23% lower workload compared to deep learning. \$M highlights the potential and feasibility of user-defined and accessible mid-air gesture interfaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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