We present a framework for gesture customization requiring minimal examples from users, all without degrading the performance of existing gesture sets. To achieve this, we first deployed a large-scale study (N=500+) to collect data and train an accelerometer-gyroscope recognition model with a cross-user accuracy of 95.7% and a false-positive rate of 0.6 per hour when tested on everyday non-gesture data. Next, we design a few-shot learning framework which derives a lightweight model from our pre-trained model, enabling knowledge transfer without performance degradation. We validate our approach through a user study (N=20) examining on-device customization from 12 new gestures, resulting in an average accuracy of 55.3%, 83.1%, and 87.2% on using one, three, or five shots when adding a new gesture, while maintaining the same recognition accuracy and false-positive rate from the pre-existing gesture set. We further evaluate the usability of our real-time implementation with a user experience study (N=20). Our results highlight the effectiveness, learnability, and usability of our customization framework. Our approach paves the way for a future where users are no longer bound to pre-existing gestures, freeing them to creatively introduce new gestures tailored to their preferences and abilities.

我们提出了一种手势定制的框架，仅需要用户提供极少量的样本即可实现个性化定制。通过大规模数据收集及实验，得出了加速度计和陀螺仪识别模型，与非手势数据相比误报率仅为0.6 /小时。此外，我们构建了一个基于少样本学习的框架，在减少性能损失的情况下建立了轻量级模型。最终，我们用20名用户进行了实验验证，其结果表明我们的定制框架具有良好的适用性和可用性，为用户提供了更多个性化手势选择的自由。

手腕设备上的手势定制功能