Mounting evidence suggests that attentional mechanisms may be required to successfully perform many vision tasks. This paper presents an attentional prototype for early visual processing. Our model is composed of a processing hierarchy and an attention beam that traverses the hierarchy, passing through the regions of greatest interest and inhibiting the regions that are not relevant. The type o...

The ever-growing usage of aspect-oriented development methodology in the field of software engineering requires tool support for both research environments and industry. So far, tool support for many activities in aspect-oriented software development has been proposed, to automate and facilitate their development. For instance, the AJaTS provides a transformation system to support aspect-orient...

We define a timing language that supports the design and implementation of embedded control software. The language is inspired by the Logical Execution Time (LET) paradigm of Giotto, but combines it with classical precedence constraints on tasks. A program specifies multiple modes of operation, where each mode consists of a set of periodically activated sensors, actuators, tasks, and mode switc...

Gravicentric visual alignments become less precise when the head is roll-tilted relative to gravity, which is most likely due to decreasing otolith sensitivity. To align a luminous line with the perceived gravity vector (gravicentric task) or the perceived body-longitudinal axis (egocentric task), the roll orientation of the line on the retina and the torsional position of the eyes relative to ...