SmartSkin: an infrastructure for freehand manipulation on interactive surfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
VR '00 Proceedings of the IEEE Virtual Reality 2000 Conference
TouchLight: an imaging touch screen and display for gesture-based interaction
Proceedings of the 6th international conference on Multimodal interfaces
Low-cost multi-touch sensing through frustrated total internal reflection
Proceedings of the 18th annual ACM symposium on User interface software and technology
Multi-layer interaction for digital tables
UIST '06 Proceedings of the 19th annual ACM symposium on User interface software and technology
BiDi screen: a thin, depth-sensing LCD for 3D interaction using light fields
ACM SIGGRAPH Asia 2009 papers
Hand distinction for multi-touch tabletop interaction
Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces
Z-touch: a multi-touch system for detecting spatial gestures near the tabletop
ACM SIGGRAPH 2010 Talks
Integrating touch and near touch interactions for information visualizations
CHI '11 Extended Abstracts on Human Factors in Computing Systems
Usage and recognition of finger orientation for multi-touch tabletop interaction
INTERACT'11 Proceedings of the 13th IFIP TC 13 international conference on Human-computer interaction - Volume Part III
ThickPad: a hover-tracking touchpad for a laptop
Proceedings of the 24th annual ACM symposium adjunct on User interface software and technology
Medusa: a proximity-aware multi-touch tabletop
Proceedings of the 24th annual ACM symposium on User interface software and technology
Proceedings of the 23rd Australian Computer-Human Interaction Conference
KinectTouch: accuracy test for a very low-cost 2.5D multitouch tracking system
Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces
Extending interactions into hoverspace using reflected light
Proceedings of the ACM International Conference on Interactive Tabletops and Surfaces
ZeroTouch: an optical multi-touch and free-air interaction architecture
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A study on touch & hover based interaction for zooming
CHI '12 Extended Abstracts on Human Factors in Computing Systems
Nailing down multi-touch: anchored above the surface interaction for 3D modeling and navigation
Proceedings of Graphics Interface 2012
Comparing elicited gestures to designer-created gestures for selection above a multitouch surface
Proceedings of the 2012 ACM international conference on Interactive tabletops and surfaces
Revisiting hovering: interaction guides for interactive surfaces
Proceedings of the 2012 ACM international conference on Interactive tabletops and surfaces
Tangible 3D tabletops: combining tangible tabletop interaction and 3D projection
Proceedings of the 7th Nordic Conference on Human-Computer Interaction: Making Sense Through Design
Proceedings of the 7th International Conference on Tangible, Embedded and Embodied Interaction
HACHIStack: dual-layer photo touch sensing for haptic and auditory tapping interaction
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
A zooming interface for accurate text input on mobile devices
CHI '13 Extended Abstracts on Human Factors in Computing Systems
Augmenting multi-touch with commodity devices
Proceedings of the 1st symposium on Spatial user interaction
PointPose: finger pose estimation for touch input on mobile devices using a depth sensor
Proceedings of the 2013 ACM international conference on Interactive tabletops and surfaces
PointPose demo: using a depth camera for finger pose estimation on touch-based mobile devices
Proceedings of the 2013 ACM international conference on Interactive tabletops and surfaces
LampTop: touch detection for a projector-camera system based on shape classification
Proceedings of the 2013 ACM international conference on Interactive tabletops and surfaces
Evaluation of a soft-surfaced multi-touch interface
HCI'13 Proceedings of the 15th international conference on Human-Computer Interaction: interaction modalities and techniques - Volume Part IV
Designing rich touch interaction through proximity and 2.5D force sensing touchpad
Proceedings of the 25th Australian Computer-Human Interaction Conference: Augmentation, Application, Innovation, Collaboration
Detecting interaction above digital tabletops using a single depth camera
Machine Vision and Applications
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Sensing the depth (distance from the surface) of fingers/hands near a tabletop is very important. It allows us to use three-dimensional (3D) gesture interaction in multi-touch applications as we do in the real world. We introduce Z-touch, a multi-touch table that can sense the approximate postures of fingers or hands in the proximity of the tabletop's surface. Z-touch uses a vision-based posture sensing system. Multilayered infrared (IR) laser planes are synchronized with shutter signals from a high-speed camera, which captures each layer of the laser images. A depth map is obtained by using the captured image. Our prototype works at ~30 fps. Z-touch not only uses with the finger/hand contact points but also the angle of the hovering fingers. The interaction with the finger angles is unique and allows users to control multiple parameters by using a single finger. In this study, we introduce the principle of the method of finger detection and its applications (e.g., drawing, map zooming viewer, Bezier curve control).