A controversy exists on photic driving in the human visual cortex evoked by intermittent photic stimulation. Frequency entrainment and resonance phenomena are reported for frequencies higher than 12 Hz in some studies while missing in others. We hypothesized that this might be due to different experimental…
Lausanne: Frontiers Research Foundation, 2016-08-18
The computed tomography is one of the most important medical instruments, allowing the non-invasive visualization of cross sections which are free from superpositions. Since 2000 an experimental computer tomo-graph of the third generation for the purpose of education and research was set up and further…
Abstract:
Items or features within the focus of attention receive enhanced processing as compared to those outside of it. Following the selection of attended features, the enhanced processing also occurs for these features in the entire visual field in a phenomenon referred to as global feature-based…
A potential new area of routine application for electroencephalography (EEG) is the brain-computer interface, which might enable disabled people to interact with their environment, based on measured brain signals. However, conventional electroencephalography is not suitable here due to limitations arising…
Braunschweig: International Measurement Confederation (IMEKO), 2014-09
Zusammenfassung:
In der vorliegenden Arbeit wird das Übertragungsverhalten des Speicherfoliensystems und Flachbilddetektors separat untersucht. Die Untersuchung des statischen Verhaltens und der örtlichen Dynamik sind dabei zwei Hauptaufgaben. Die Homogenität, Symmetrie, Verdrehungsinvarianz und Verschiebungsinvarianz…
This paper presents a shift reducing algorithm of fundus images consisting of the following steps: edge detection by a rule based gradient algorithm, algorithm to search significant templates and a template matching algorithm based on edge lists. The result of the shift reducing algorithm depends on…
Die in Biosignalen häufig anzutreffenden Instationaritäten in Signalverläufen erschweren oftmals eine Anwendung der gut bekannten Fouriertransformation zur Ermittlung spektraler Kenngrößen. In einer Vielzahl von Anwendungen konnte bereits gezeigt werden, dass sich derartige Instationaritäten im zeitlichen…