Vision-based Finger Detection and Its Applications
Date Issued
2007
Date
2007
Author(s)
Chuang, Yi-Fan
DOI
en-US
Abstract
In this paper, we developed a real-time fingertip detection
technique. The proposed technique works on images captured by infrared cameras. The cameras are settled on one side of the interactive surface, capturing human gestures taken place on the other side. The novelties of our technique are: firstly, the technique works with an infrared camera coupled with an infrared illuminator, which is easy to deploy and cost effective. Secondly, the proposed technique is designed to be robust for a non-uniform illuminated surface. We have deployed the technique on two applications: i-m-Top and Magic Crystal Ball (MaC Ball). i-m-Top is a rear-projection multi-resolution tabletop which provides several basic functions of browsing and modifying documents on the tabletop. With the characteristics of the projection diffuser, we can separate finger touching from palm hovering events when the user interacts with the diffuser. A video retrieval system working with finger touching and palm hovering interactions is presented on i-m-Top to show its intuitive operations. MaC Ball is an interactive display system that is suitable in museums, galleries, and exhibitions to demonstrate 3D treasures. For the interactions of MaC Ball, we integrate the fingertip finding technique and optic-flow motion detection to provide the users with natural interactions to experience the virtual exhibition.
Subjects
手指偵測
直覺式互動
互動式桌面顯示系統
3D互動系統
Finger Detection
Intuitive Interaction
Interactive Tabletop System
3D Interactive System
Type
thesis
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