نتایج جستجو برای: temporal filter
تعداد نتایج: 362002 فیلتر نتایج به سال:
Interference management for CDMA systems through power control, multiuser detection, and beamforming
Among the ambitious challenges to be met by the third-generation systems is to provide high-capacity flexible services. Code-division multiple access (CDMA) emerges as a promising candidate to meet these challenges. It is well known that CDMA systems are interference-limited, and interference management is needed to maximally utilize the potential gains of this access scheme. Several methods of...
Combining the methods of generating functions and discrete-time linear systems, we can develop multidimensional (M-D) digital systems for systematic generation of entire families of interrelated digital filters. These M-D systems, dubbed filter-generating systems, are mostly of infinite-impulse response (IIR) type and can produce the impulse response sequence of any member of the family. Tempor...
It is well known that having 3 temporal phase shifting (PS) interferograms we do not have many possibilities of using an algorithm with a desired frequency spectrum, detuning, and harmonic robustness. This imposes severe restrictions on the possibilities to demodulate such set of temporal interferograms. It would be nice to apply for example a 7 step PS algorithm to these 3 images in order to h...
Forward masking is a phenomenon of human auditory perception, that a weaker sound is masked by a preceding stronger masker. The actual cause of forward masking is not clear, but synaptic adaptation and temporal integration are heuristic explanations. In this paper, we postulate the mechanism of forward masking to be synaptic adaptation and temporal integration, and incorporate them in the featu...
We present a comparison of three temporal filters used in the estimation of optical flow for mobile robot navigation. Previous comparisons of optical flow and associated techniques have compared performance in terms of accuracy and/or efficiency, and typically in isolation. These comparisons are inadequate for addressing applicability to continuous, real-time operation as part of a robot contro...
Longitudinal analysis of magnetic resonance images of the human brain provides knowledge of brain changes during both normal aging as well as the progression of many diseases. Previous longitudinal segmentation methods have either ignored temporal information or have incorporated temporal consistency constraints within the algorithm. In this work, we assume that some anatomical brain changes ca...
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