Spatial memory is supported by multiple parallel representations of the environment. Egocentric perspective (body-centered) and allocentric representations (objectcentered) are integrated to allow correct interaction with the world. According to Milner and Goodale (1995, 2008), the action-related dorsal system is specialized for location of objects in space and visuo-motor integration, and uses...

Regional reference frames fixed to the stable part of a tectonic plate are often required for national spatial reference systems and to facilitate geophysical interpretation and inter-comparison of geodetic solutions of crustal motions. In 2003, the Stable North American Reference Frame (SNARF) Working Group was established under the auspices of UNAVCO and IAG Regional Sub-Commission 1.3c to ad...

We propose a framework for error robust real−time video telephony over wireless networks. In our approach we cope with packet loss on the downlink by retransmitting lost packets from the base station to the receiver terminal. The effect of lost packets is reduced using error concealment. Retransmitted packets are used for error recovery. In order to be able to use the retransmissions for error ...

In motion capture applications using electromagnetic tracking systems the process of anatomical calibration associates the technical frames of sensors attached to the skin with the human anatomy. Joint centers and axes are determined relative to these frames. A change of orientation of the sensor relative to the skin renders this calibration faulty. This sensitivity regarding sensor displacemen...

Existing plows do not provide high-quality tillage between rows of orchards and vineyards. The purpose the study is to develop justify parameters plow for cultivating soil gardens tractors class 0.9 kN. A design scheme a single-body smooth, rowless plowing garden aisles has been developed. proposed consists movable fixed frame, disc knife, screw body with hostage. research uses laws agricultura...

Underwater obstacle detection and avoidance is essential for safe deployment of autonomous underwater vehicles (AUVs). A forwardlooking sonar is typically used to detect and localize potential obstacles. Such sensors tend to have a coarser sensor resolution and a lower signal-to-noise ratio (SNR) than electromagnetic sensors typically used for similar tasks in land-based robotics. Lack of acces...

An implicit unsteady upwind solver including a mesh motion approach was applied to simulate a helicopter including body, main rotor and tail rotor in hover flight. The discretization was based on a second order finite volume approach with fluxes given by the Roeand#39;s scheme. Discretization of Geometric Conservation Laws (GCL) was devised in such a way that the three-dimensional flows on arbi...