ToolStone: effective use of the physical manipulation vocabularies of input devices
UIST '00 Proceedings of the 13th annual ACM symposium on User interface software and technology
Phidgets: easy development of physical interfaces through physical widgets
Proceedings of the 14th annual ACM symposium on User interface software and technology
The sound of one hand: a wrist-mounted bio-acoustic fingertip gesture interface
CHI '02 Extended Abstracts on Human Factors in Computing Systems
Passive acoustic knock tracking for interactive windows
CHI '02 Extended Abstracts on Human Factors in Computing Systems
Low-cost multi-touch sensing through frustrated total internal reflection
Proceedings of the 18th annual ACM symposium on User interface software and technology
Target size study for one-handed thumb use on small touchscreen devices
Proceedings of the 8th conference on Human-computer interaction with mobile devices and services
UIST '06 Proceedings of the 19th annual ACM symposium on User interface software and technology
Reflective physical prototyping through integrated design, test, and analysis
UIST '06 Proceedings of the 19th annual ACM symposium on User interface software and technology
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Stane: synthesized surfaces for tactile input
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Scratch input: creating large, inexpensive, unpowered and mobile finger input surfaces
Proceedings of the 21st annual ACM symposium on User interface software and technology
HandSense: discriminating different ways of grasping and holding a tangible user interface
Proceedings of the 3rd International Conference on Tangible and Embedded Interaction
Graspables: grasp-recognition as a user interface
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Hand grip pattern recognition for mobile user interfaces
IAAI'06 Proceedings of the 18th conference on Innovative applications of artificial intelligence - Volume 2
GraspZoom: zooming and scrolling control model for single-handed mobile interaction
Proceedings of the 11th International Conference on Human-Computer Interaction with Mobile Devices and Services
FlyEye: grasp-sensitive surfaces using optical fiber
Proceedings of the fourth international conference on Tangible, embedded, and embodied interaction
Skinput: appropriating the body as an input surface
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A novel human-computer interface based on passive acoustic localisation
HCI'07 Proceedings of the 12th international conference on Human-computer interaction: interaction platforms and techniques
Pressure-based menu selection for mobile devices
Proceedings of the 12th international conference on Human computer interaction with mobile devices and services
Grips and gestures on a multi-touch pen
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
TactileTape: low-cost touch sensing on curved surfaces
Proceedings of the 24th annual ACM symposium adjunct on User interface software and technology
Active bone-conducted sound sensing for wearable interfaces
Proceedings of the 24th annual ACM symposium adjunct on User interface software and technology
Conté: multimodal input inspired by an artist's crayon
Proceedings of the 24th annual ACM symposium on User interface software and technology
OmniTouch: wearable multitouch interaction everywhere
Proceedings of the 24th annual ACM symposium on User interface software and technology
Modular and deformable touch-sensitive surfaces based on time domain reflectometry
Proceedings of the 24th annual ACM symposium on User interface software and technology
KinectFusion: real-time 3D reconstruction and interaction using a moving depth camera
Proceedings of the 24th annual ACM symposium on User interface software and technology
TapSense: enhancing finger interaction on touch surfaces
Proceedings of the 24th annual ACM symposium on User interface software and technology
Augmenting touch interaction through acoustic sensing
Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces
Touché: enhancing touch interaction on humans, screens, liquids, and everyday objects
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
SoundWave: using the doppler effect to sense gestures
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
MicPen: pressure-sensitive pen interaction using microphone with standard touchscreen
CHI '12 Extended Abstracts on Human Factors in Computing Systems
.NET gadgeteer: a platform for custom devices
Pervasive'12 Proceedings of the 10th international conference on Pervasive Computing
Touch behavior with different postures on soft smartphone keyboards
MobileHCI '12 Proceedings of the 14th international conference on Human-computer interaction with mobile devices and services
FlexAura: a flexible near-surface range sensor
Proceedings of the 25th annual ACM symposium on User interface software and technology
DuploTrack: a real-time system for authoring and guiding duplo block assembly
Proceedings of the 25th annual ACM symposium on User interface software and technology
Proceedings of the 25th annual ACM symposium on User interface software and technology
GripSense: using built-in sensors to detect hand posture and pressure on commodity mobile phones
Proceedings of the 25th annual ACM symposium on User interface software and technology
Pressages: augmenting phone calls with non-verbal messages
Proceedings of the 25th annual ACM symposium on User interface software and technology
Acoustic barcodes: passive, durable and inexpensive notched identification tags
Proceedings of the 25th annual ACM symposium on User interface software and technology
PICL: portable in-circuit learner
Proceedings of the 25th annual ACM symposium on User interface software and technology
Midas: fabricating custom capacitive touch sensors to prototype interactive objects
Proceedings of the 25th annual ACM symposium on User interface software and technology
iRotate grasp: automatic screen rotation based on grasp of mobile devices
Adjunct proceedings of the 25th annual ACM symposium on User interface software and technology
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In this paper, we present a novel acoustic touch sensing technique called Touch & Activate. It recognizes a rich context of touches including grasp on existing objects by attaching only a vibration speaker and a piezo-electric microphone paired as a sensor. It provides easy hardware configuration for prototyping interactive objects that have touch input capability. We conducted a controlled experiment to measure the accuracy and trade-off between the accuracy and number of training rounds for our technique. From its results, per-user recognition accuracies with five touch gestures for a plastic toy as a simple example and six hand postures for the posture recognition as a complex example were 99.6% and 86.3%, respectively. Walk up user recognition accuracies for the two applications were 97.8% and 71.2%, respectively. Since the results of our experiment showed a promising accuracy for the recognition of touch gestures and hand postures, Touch & Activate should be feasible for prototype interactive objects that have touch input capability.