Quality Of Graphics Research Articles

An electrophoretic display, its properties, model, and addressing

A model to describe the optical behavior of an electrophoretic display (EPD) device is developed. The model involves the particle size and mobility as well as the time of removal of particles from an electrode. The most important aspect of this model is the treatment of the dynamics of removing particle layers from an electrode. This process plays a significant role in controlling the optical off-response rate. The optical on-response is governed by the particle mobility or the spatial distribution of the particles through the cell. Various schemes for addressing the electrophoretic device are discussed. Only a display employing assisted array addressing appears capable of giving a large-area graphics quality display with short response time. Fringing field particle migration was found to seriously degrade image quality. A cell subdivision structure is used to overcome fringing field migration, particle settling, and electrohydrodynamic effects.

A comparison of the graphic qualities of Prestel, Antiope and Tel idon

As viewdata systems expand rapidly to meet the estimated huge market demand coming into view, the graphics quality, legibility and display standards that they offer also come under in creasingly cut teal s cru tiny. The author rep o rts on an important study earned out for the EEC Commission, focussing on this aspect of the videotex story.

A report on the use of FORTRAN-coded EXPLOR for the teaching of computer graphics and computer art

A FORTRAN-coded version of my EXPLOR language (for the production of images from ex plicit p atterns, l ocal o perations and r andomness) has been used to teach computer graphics and computer art to a collection of undergraduate students in art and computer science at the University of California at Santa Cruz. My conclusions are (1) that this particular language makes it possible for relatively inexperienced programmers readily to produce a wide variety of interesting designs, (2) that a rather significant scope and quality of computer graphics can be done with simply a line printer as the output device (other equipment became available during the program) and (3) that teaching of the important concepts of computing can be facilitated by the use of graphic output - i.e. graphics can be considered an effective approach to computing as well as vice versa.