Background. A field study conducted by researchers found the balls used by visual impairment students at school basically used the sound by a small bell inside the ball. However, the sound emitted from the ball is very limited, the ball will sound when it is moved. This makes it difficult for students with visual impairments to find a missing ball that not emitted makes a sound. Objectives. A ...

In this paper we describe a prototype system for directing a computer generated scene for film planning. The system is based upon the concepts of the Intuitive Interface, an environment in which the user interacts in front of a projection screen, and where interaction in physical space and pointing gestures are used to direct the scene. The environment demands certain requirements of the intera...

This paper is concerned with optimization or minimization problems that are governed by operator equations, such as partial differential or integral equations, and thus are naturally formulated in an infinite dimensional function space V . We first construct a prototype algorithm of steepest descent type in V and prove its convergence. By using a Riesz basis in V we can transform the minimizati...

Optically see-through (OST) augmented reality glasses can overlay spatially-registered computer-generated content onto the real world. However, current optical designs and weight considerations limit their diagonal field of view to less than 40 degrees, making it difficult to create a sense of immersion or give the viewer an overview of the augmented reality space. We combine OST glasses with a...

We have developed a super compact optical fluorescence spectrometer. Our innovative design combines advantages of guided wave planar optics and free-space microoptics. This innovation allows for miniaturization that is not achievable with pure planar or pure free-space optics. A prototype device has volume of its optical part below 1cm. The spectrometer covers 450nm-650nm spectral range, and pr...

To enable the creation of simple 2D games without writing code, we propose a system that can learn the game logic from user traces demonstrating what should happen. Though our system is aimed at helping non-programmers design and build simple games, it could even be useful for game programmers to rapidly iterate through early prototypes while refining game logic. Learning programs from examples...

The first spectral measurement of Earth’s emitted radiation to space in the wideband range from 100 to 1400 cm−1 with 0.5 cm−1 spectral resolution is presented. The measurement was performed from a stratospheric balloon in tropical region using a Fourier transform spectrometer, during a field campaign held in Brazil in June 2005. The instru5 ment, which has uncooled components including the det...