منابع مشابه
Voronoi Pyramids and Hoppeld Networks
We present an algorithm for image segmentation with irregular pyramids. Instead of starting with the original pixel grid, we rst apply an adaptive Voronoi tessellation to the image. For irregular pyramid construction we present a Hoppeld neural network which controls the decimation process. The validity of our approach is demonstrated by several examples in image segmentation.
متن کاملVoronoi networks and their probability of misclassification
Nearest neighbor classifiers that use all the training samples for classification require large memory and demand large online testing computation. To reduce the memory requirements and the computation cost, many algorithms have been developed that perform nearest neighbor classification using only a small number of representative samples obtained from the training set. We call the classificati...
متن کاملVoronoi Pyramids Controlled by Hopfield Neural Networks
We present an algorithm for image segmentation with irregular pyramids. Instead of starting with the original pixel grid, we rst apply some adaptive Voronoi tesselation to the image. This provides the advantage that the number of cells in the bottom level of the pyramid is already reduced as compared to the number of pixels of the original image. Furthermore the Voronoi diagram is a powerful to...
متن کاملVoronoi Leach for Energy Efficient Communication in Wireless Sensor Networks
Energy efficient communication is significantly important for Wireless Sensor Networks as the energy is a scarce and constrained resource. In this paper, we have proposed a different version of LEACH (Low Energy Adaptive Clustering Hierarchy) protocol called Voronoi LEACH, where the clusters in LEACH are replaced with Voronoi regions. The proposed protocol has better properties for energy effic...
متن کاملVoronoi-Based Coverage Optimization for Directional Sensor Networks
Sensing coverage is a fundamental problem in sensors networks. Different from traditional isotropic sensors with sensing disk, directional sensors may have a limited angle of sensing range due to special applications. In this paper, we study the coverage problem in directional sensor networks (DSNs) with the rotatable orientation for each sensor. We propose the optimal coverage in directional s...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 1996
ISSN: 0108-7673
DOI: 10.1107/s0108767396077562