Back-of-device tap recognition by leveraging magnetometer in commodity smartphones
- Authors
- Kim, Insu; Choi, Jaemin; Shin, Suhyeon; Kim, JunSeob; Kim, Mucheol; Cho, Seongrae; Kim, Hyosu
- Issue Date
- 2023
- Publisher
- IEEE Computer Society
- Keywords
- Back-of-Device; IMU; Input interface
- Citation
- International Conference on ICT Convergence, v.2023 14th, pp 656 - 658
- Pages
- 3
- Journal Title
- International Conference on ICT Convergence
- Volume
- 2023 14th
- Start Page
- 656
- End Page
- 658
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/72843
- DOI
- 10.1109/ICTC58733.2023.10393269
- ISSN
- 2162-1233
- Abstract
- Tap inputs on the back of smartphones provide a solution to the occlusion problem but come with challenges such as reduced accuracy and constrained functionality. In this work, we introduce MagTap, a novel magnetic-based input interface for smartphones, specifically leveraging magnets and ferromagnetic materials to recognize tap inputs made on the back of the smartphones. Through our evaluation with a MagTap prototype on an Apple iPhone 12, we demonstrate that MagTap can achieve high localization accuracy (e.g., an average accuracy of 95.3% for single taps and 88.2% for double taps), not losing usability and deployability. © 2023 IEEE.
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