TY - GEN
T1 - A new method for multi-finger detection using a regular diffuser
AU - Chan, Li Wei
AU - Chuang, Yi Fan
AU - Chia, Yi Wei
AU - Hung, Yi Ping
AU - Hsu, Jane
PY - 2007
Y1 - 2007
N2 - In this paper, we developed a fingertip finding algorithm working with a regular diffuser. The proposed algorithm works on images captured by infra-red cameras, settled on one side of the diffuser, observing human gestures taken place on the other side. With diffusion characteristics of the diffuser, we can separate finger-touch from palm-hover events when the user interacts with the diffuser. This paper contributes on: Firstly, the technique works with a regular diffuser, infra-red camera coupled with an infra-red illuminator, which is easy to deploy and cost effective. Secondly, the proposed algorithm is designed to be robust for casually illuminated surface. Lastly, with diffusion characteristics of the diffuser, we can detect finger-touch and palm-hover events, which is useful for natural user interface design. We have deployed the algorithm on a rear-projection multi-resolution tabletop, called I-M-Top. A video retrieval application using the two events on design of UIs is implemented to show its intuitiveness on the tabletop system.
AB - In this paper, we developed a fingertip finding algorithm working with a regular diffuser. The proposed algorithm works on images captured by infra-red cameras, settled on one side of the diffuser, observing human gestures taken place on the other side. With diffusion characteristics of the diffuser, we can separate finger-touch from palm-hover events when the user interacts with the diffuser. This paper contributes on: Firstly, the technique works with a regular diffuser, infra-red camera coupled with an infra-red illuminator, which is easy to deploy and cost effective. Secondly, the proposed algorithm is designed to be robust for casually illuminated surface. Lastly, with diffusion characteristics of the diffuser, we can detect finger-touch and palm-hover events, which is useful for natural user interface design. We have deployed the algorithm on a rear-projection multi-resolution tabletop, called I-M-Top. A video retrieval application using the two events on design of UIs is implemented to show its intuitiveness on the tabletop system.
KW - Intuitive interaction
KW - Multi-finger detection
UR - http://www.scopus.com/inward/record.url?scp=38149069071&partnerID=8YFLogxK
U2 - 10.1007/978-3-540-73110-8_62
DO - 10.1007/978-3-540-73110-8_62
M3 - 会议稿件
AN - SCOPUS:38149069071
SN - 9783540731085
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 573
EP - 582
BT - Human-Computer Interaction
PB - Springer Verlag
T2 - 12th International Conference on Human-Computer Interaction, HCI International 2007
Y2 - 22 July 2007 through 27 July 2007
ER -