Tolga Capin

Mobile camera-based user interaction

We present an approach for facilitating user interaction on mobile devices, focusing on camera-enabled mobile phones. A user interacts with an application by moving their device. An on-board camera is used to capture incoming video and the scrolling direction and magnitude are estimated using a feature-based tracking algorithm. The direction is used as the scroll direction in the application, and the magnitude is used to set the zoom level. The camera is treated as a pointing device and zoom level control in applications. Our approach generates mouse events, so any application that is mouse-driven can make use of this technique.

Mobile camera-based adaptive viewing

In this paper, we present an approach for facilitating user interaction on mobile devices, focusing on camera-enabled mobile phones. A user interacts with an application by moving their device. An on-board camera is used to capture incoming video and the scrolling direction and magnitude are estimated using a computer vision-based algorithm. The direction is used as the scroll direction in the application, and the magnitude is used to set the zoom level. The camera is treated as a pointing device and zoom level control in applications. Our approach generates mouse events, so any application that is mouse-driven can make use of this technique. The user is free to browse through large data sets on a limited size display with one hand, ideal for the mobile domain.

More: A Mobile Open Rich Media Environment

Rich media is a term that implies the integration of all of the advances we have made in the mobile space delivering music, speech, text, graphics and video. This is true, but it is more than the sum of its parts. Rich media is the ability to deliver these modalities, to interact with these modalities, and to do it in a way that allows for the construction, delivery and use of compelling mobile services in an effective and economic manner. In this paper, we introduce a system called mobile open rich-media environment (MORE) that helps realize such mobile rich media services, combining various technologies of W3C, OMA, 3GPP and IETF standards. The different components of the system include formatting, packaging, transporting, rendering and interacting with rich media files and streams

JSR-226: a versatile API for mobile SVG on J2ME

• Scalability – vector graphics is inherently scalable, which provides optimal quality for 2D graphics on current and future terminals with different display resolutions, color depth, CPU power, and memory. • Animation – vector graphics provides possibility of representing declarative and scripted animations (important for example, for games). • Interactivity – vector graphics allows end users to interact with image content (important for scalable user interfaces). • Searchability – vector graphics allows users to search for text in the image. For example, you can automatically find a street name on a map.