Our figure-rewriting visual language is extended by a general method so that it rewrites figures distributed on multiple hosts. With this language, network applications or distributed systems can be built simply by drawing figures as a graphical code on a single host. At run-time, the code is partitioned according to the number of target hosts and distributed on them. The partitioned codes then...

Three-dimensional Miiller-Lyer figures were used in three experiments to test a perspective theory of geometrical illusions. The real depth cues were in one of two orientations, designed either to support or to oppose the action of the perspective depth cues hypothesized by the perspective theory. If any illusion is obtained with these three-dimensional figures, the theory implies, its magnitud...

Spontaneous figure reversal of ambiguous patterns was analyzed in humans by presenting “Necker-cube”-like, or “drum”-like figures having square or round shaped “front” and “rear” surfaces, and either large or small “depth”. The figures were perceived alternately according to one or the other of two possible mental orientation-interpretations. The subjects signalled the instant of subjective pat...

When humans look at a complex and ambiguous figure, they divide it into several elemental figures. This human visual characteristic is called figure segiegation. There is a problem when constructing a cognitive model for figure segiegation. That is, one interpretation is selected by most people for some figures, and several interpretations are selected almost equally for other figures. This pap...

Mixed reality techniques are presented. Implementation and application of CAMSHIFT algorithm is discussed to some extent. In the initial stage of the research the technology of real object’s edge detection and geometrical figures’ representation in the virtual scene has been worked out.

The focus of this paper is a software genre usually referred to as ‘dynamic geometry’ because of the ability of the user to dynamically manipulate geometrical figures created with the software tool. Using data from a longitudinal study of 12-13 students’ use of dynamic geometry software, the focus of the analysis is on the interpretations the students make of geometrical objects and relationshi...