Gestural and audio metaphors as a means of control for mobile devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
WUAUC'01 Proceedings of the 2001 EC/NSF workshop on Universal accessibility of ubiquitous computing: providing for the elderly
Computer Supported Cooperative Work
Hands-off human-computer interfaces for individuals with severe motor disabilities
Proceedings of the HCI International '99 (the 8th International Conference on Human-Computer Interaction) on Human-Computer Interaction: Communication, Cooperation, and Application Design-Volume 2 - Volume 2
"Unvoiced speech recognition using EMG - mime speech recognition"
CHI '03 Extended Abstracts on Human Factors in Computing Systems
GestureWrist and GesturePad: Unobtrusive Wearable Interaction Devices
ISWC '01 Proceedings of the 5th IEEE International Symposium on Wearable Computers
The Biofeedback Pointer: EMG Control of a Two Dimensional Pointer
ISWC '98 Proceedings of the 2nd IEEE International Symposium on Wearable Computers
StartleCam: A Cybernetic Wearable Camera
ISWC '98 Proceedings of the 2nd IEEE International Symposium on Wearable Computers
Gestures as Input: Neuroelectric Joysticks and Keyboards
IEEE Pervasive Computing
A paradigm shift: alternative interaction techniques for use with mobile & wearable devices
CASCON '03 Proceedings of the 2003 conference of the Centre for Advanced Studies on Collaborative research
Mediating intimacy: designing technologies to support strong-tie relationships
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Toward subtle intimate interfaces for mobile devices using an EMG controller
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Multimodal interaction in music using the Electromyogram and relative position sensing
NIME '02 Proceedings of the 2002 conference on New interfaces for musical expression
Personal, Portable, Pedestrian: Mobile Phones in Japanese Life
Personal, Portable, Pedestrian: Mobile Phones in Japanese Life
ReachMedia: On-the-move interaction with everyday objects
ISWC '05 Proceedings of the Ninth IEEE International Symposium on Wearable Computers
An examination of the effects of a wearable display on informal face-to-face communication
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
eye-q: eyeglass peripheral display for subtle intimate notifications
Proceedings of the 8th conference on Human-computer interaction with mobile devices and services
Biosignals Offer Potential for Direct Interfaces and Health Monitoring
IEEE Pervasive Computing
Real-time classification of electromyographic signals for robotic control
AAAI'05 Proceedings of the 20th national conference on Artificial intelligence - Volume 2
Demonstrating the feasibility of using forearm electromyography for muscle-computer interfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
EMG-based hand gesture recognition for realtime biosignal interfacing
Proceedings of the 13th international conference on Intelligent user interfaces
Enabling always-available input with muscle-computer interfaces
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Enhancing input on and above the interactive surface with muscle sensing
Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces
Making muscle-computer interfaces more practical
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Designing eyes-free interaction
HAID'07 Proceedings of the 2nd international conference on Haptic and audio interaction design
Nenya: subtle and eyes-free mobile input with a magnetically-tracked finger ring
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
ICIRA'11 Proceedings of the 4th international conference on Intelligent Robotics and Applications - Volume Part I
Emerging Input Technologies for Always-Available Mobile Interaction
Foundations and Trends in Human-Computer Interaction
Ubiquitous shortcuts: mnemonics by just taking photos
CHI '13 Extended Abstracts on Human Factors in Computing Systems
FingerPad: private and subtle interaction using fingertips
Proceedings of the 26th annual ACM symposium on User interface software and technology
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Mobile communication devices, such as mobile phones and networked personal digital assistants (PDAs), allow users to be constantly connected and communicate anywhere and at any time, often resulting in personal and private communication taking place in public spaces. This private -- public contrast can be problematic. As a remedy, we promote intimate interfaces: interfaces that allow subtle and minimal mobile interaction, without disruption of the surrounding environment. In particular, motionless gestures sensed through the electromyographic (EMG) signal have been proposed as a solution to allow subtle input in a mobile context. In this paper we present an expansion of the work on EMG-based motionless gestures including (1) a novel study of their usability in a mobile context for controlling a realistic, multimodal interface and (2) a formal assessment of how noticeable they are to informed observers. Experimental results confirm that subtle gestures can be profitably used within a multimodal interface and that it is difficult for observers to guess when someone is performing a gesture, confirming the hypothesis of subtlety.