Schnabl recently found an analytic expression for the string field tachyon condensate using a gauge condition adapted to the conformal frame of the sliver projector. We propose that this construction is more general. The sliver is an example of a special projector, a projector such that the Virasoro operator L0 and its BPZ adjoint L0 obey the algebra [L0,L0] = s(L0 + L0), with s a positive real...

Alain Pagani Didier Stricker Abstract — A major issue when setting up multi-projector tiled displays is the spatial non-uniformity of the color throughout the display’s area. Indeed, the chromatic properties do not only vary between two different projectors, but also between different spatial locations inside the displaying area of one single projector. A new method for calibrating the colors o...

A typical video projector has three fixed primaries, typically red, green and blue, and operates by showing a sub-frame consisting of a single color primary at a time. In order to improve the color gamut the projector can cover, one could add more color primaries (e.g. yellow, magenta), however, this would require the projector to be able to operate at higher speeds to show more primaries. Here...

In systems biology, the biochemical pathway provides an essential context for understanding comprehensive experimental data and the systematic workings of a cell [1]. Therefore, the availability of online pathway browsers will facilitate post-genomic research, just as genome browsers have contributed to genomics. Many pathway maps have been provided online as part of public pathway databases [2...

-Recently, portable LCD projectors have become increasingly popular for various usages. However a careful aligning to the projection surface or a flat screen are necessary for getting a good projection effect. If a projector can display an undistorted image on an unknown geometry surface, more and more applications can be expected. In this paper, we present a new new approach allowing a project...

In line with the fast advance seen in technology, the use of technological resources in education has come to play an important role in terms of drawing students’ attention to the subjects studied in the classroom so that success increases and the knowledge is better internalized. This study was carried out to determine the attitudes of the pre-service teachers from the department of elementary...

Questionnaires have been developed for categorising grapheme-colour synaesthetes into two sub-types based on phenomenology: associators and projectors. The general approach has been to assume a priori the existence of two sub-types on a single dimension (with endpoints as projector and associator) rather than explore, in a data-driven fashion, other possible models. We collected responses from ...

The image generated by an off-center projector appears distorted (Figure 1, left). Using an uncalibrated camera pointed at the presentation screen, our system automatically recovers the projector-to-screen homography and pre-warps the computer output to produce a keystone-corrected image (Figure 1, right). This allows the presenter to place the microportable projector anywhere in the room witho...