Relative positioning from model indexing

Relative Positioning from Model Indexing

We show how to determine the position of a camera relative to a model of the environment using features extracted from one image. The method is based on view variation of cross-ratios and is independent of camera calibration. 1 Model Indexing From Images Recognition and pose estimation of objects in images is in general based on extracting features such as points and lines from the image and fi...

Relative Positioning

Many ubiquitous computing applications rely upon location information describing the positions of people and devices. To date, location systems for ubiquitous computing have commonly supplied position data which has a single system-wide reference [1]. Examples include 3D coordinates inside a building, or public areas on a campus. In order to provide statically-referenced data, such systems nece...

Relative Positioning

Positioning of mobile devices is a core requirement in many mobile computing applications. Typically, such applications use external infrastructure installed in the environment to obtain position information. Several different technologies have been investigated such as ultra sound, magnetic fields or inertial systems. In contrast to most of the established location systems, a promising approac...

Enhancing Tabletop Games with Relative Positioning Technology

Research in pervasive and ubiquitous computing has produced especially small and powerful technologies. In this paper we motivate the application of these new technologies in tabletop games that do not rely on special game boards, but are mainly played on custom made miniature landscapes created by the players. We propose the RELATE [1] platform for augmenting miniatures normally used as game p...

The Accuracy of Gps Relative Positioning