Abstract
Proximity-based motion gesture sensors (MGSs) using IR LEDs have been widely researched for contactless human-machine interfaces. Conventional MGSs have incorporated discrete photodiodes into a receiver, which prevents them from being adopted for portable handheld devices because of their large size and high profile. This paper proposes a proximity-based contactless MGS that embeds photodiodes and a motion detection algorithm into a single package. The area and height of the proposed optical structure including photodiodes and an optical block are reduced by 96.2% and 71.7%, respectively, compared with the most recently developed MGS. Furthermore, the proposed sensor achieves a recognition rate of over 99.5% on average at various speeds of hand movements. A prototype system is implemented and tested for validation.
Original language | English |
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Article number | 6689698 |
Pages (from-to) | 848-853 |
Number of pages | 6 |
Journal | IEEE Transactions on Consumer Electronics |
Volume | 59 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2013 Nov |
Keywords
- Contactless interface
- Motion gesture sensor
- Optical block
- Proximity
ASJC Scopus subject areas
- Media Technology
- Electrical and Electronic Engineering