Determination of object direction in a multi-camera tracking system is critical. The absence of object direction from other cameras pose challenges if the object is along the optical axis. The problem of determining object direction worsens further if the cameras in the existing infrastructure are improperly placed and are uncontrollable. To determine the direction of an object in such situatio...

Non-invasive cardiovascular imaging initially focused on heart structures, allowing the visualization of their motion and inferring its functional status from it. Colour-Doppler and cardiac magnetic resonance (CMR) have allowed a visual approach to intracardiac flow behaviour, as well as measuring its velocity at single selected spots. Recently, the application of new technologies to medical us...

Modelling patient flow in health care systems is considered vital in understanding the system's activity and may therefore prove to be useful in improving their functionality. A measure, extensively used, is the average length of stay which, although easy to calculate and quantify, assumes normally distributed data thus making the subsequent modelling of resources totally unsuitable. In fact, s...

Since the notion of general purpose planning became one of the touchstones of artificial intelligence, surprisingly little improvement has been made in the efficiency of planning algorithms. Efficient high-speed search is essential to most planning algorithms proposed to date: this can only be achieved if the search algorithms used are based on a solid understanding of the search space. The con...

Mangroves grow in the intertidal parts of sheltered tropical coastlines, facilitating coastal stabilization and wave attenuation. Mangroves are widely threatened nowadays, although past studies have indicated their contribution to coastal safety. Most of these studies were based on numerical modeling however and a proper database with field observations is lacking yet. This paper presents part ...

BACKGROUND Stroke patients manifest steering difficulties during walking, which may arise from an altered perception of visual motion. OBJECTIVE To examine the ability of stroke patients to control their heading direction while walking in a virtual environment (VE) describing translational optic flows (OFs) expanding from different directions. METHODS The authors evaluated 10 stroke patient...

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