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Results 1 - 10
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2,140
Unsupervised Segmentation of Color-Texture Regions in Images and Video
, 2001
"... A new method for unsupervised segmentation of color-texture regions in images and video is presented. This method, which we refer to as JSEG, consists of two independent steps: color quantization and spatial segmentation. In the first step, colors in the image are quantized to several representative ..."
Abstract
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Cited by 318 (3 self)
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representative classes that can be used to differentiate regions in the image. The image pixels are then replaced by their corresponding color class labels, thus forming a class-map of the image. The focus of this work is on spatial segmentation, where a criterion for "good" segmentation using
Robust Higher Order Potentials for Enforcing Label Consistency
, 2009
"... This paper proposes a novel framework for labelling problems which is able to combine multiple segmentations in a principled manner. Our method is based on higher order conditional random fields and uses potentials defined on sets of pixels (image segments) generated using unsupervised segmentation ..."
Abstract
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Cited by 259 (34 self)
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This paper proposes a novel framework for labelling problems which is able to combine multiple segmentations in a principled manner. Our method is based on higher order conditional random fields and uses potentials defined on sets of pixels (image segments) generated using unsupervised segmentation
Multi-access Fading Channels - Part I: Polymatroid Structure, Optimal Resource Allocation and Throughput Capacities
- IEEE Trans. Inform. Theory
"... In multiaccess wireless systems, dynamic allocation of resources such as transmit power, bandwidths, and rates is an important means to deal with the time-varying nature of the environment. In this two-part paper, we consider the problem of optimal resource allocation from an information-theoretic p ..."
Abstract
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Cited by 224 (10 self)
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-theoretic point of view. We focus on the multiaccess fading channel with Gaussian noise, and define two notions of capacity depending on whether the traffic is delay-sensitive or not. In part I, we characterize the throughput capacity region which contains the long-term achievable rates through the time
Navier-Stokes, fluid dynamics, and image and video inpainting
- Proc. IEEE Computer Vision and Pattern Recognition (CVPR
, 2001
"... Image inpainting involves filling in part of an image or video using information from the surrounding area. Applications include the restoration of damaged photographs and movies and the removal of selected objects. In this paper, we introduce a class of automated methods for digital inpainting. The ..."
Abstract
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Cited by 167 (18 self)
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the role of the vorticity of the fluid; it is transported into the region to be inpainted by a vector field defined by the stream function. The resulting algorithm is designed to continue isophotes while matching gradient vectors at the boundary of the inpainting region. The method is directly based
A critical role for the right fronto-insular cortex in switching between central-executive and default-mode networks.
- Proc Natl Acad Sci USA
, 2008
"... Cognitively demanding tasks that evoke activation in the brain's central-executive network (CEN) have been consistently shown to evoke decreased activation (deactivation) in the default-mode network (DMN). The neural mechanisms underlying this switch between activation and deactivation of larg ..."
Abstract
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Cited by 178 (1 self)
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regions that overlap with the CEN and SN are important for multiple cognitive control functions, including initiation, maintenance, and adjustment of attention (7). However, no studies to date have directly assessed the temporal dynamics and causal interactions of specific nodes within the CEN, SN
Dimsumnet: New directions in wireless networking using coordinated dynamic spectrum access
- in IEEE WoWMoM05
, 2005
"... Recent advances in Software Defined Radio (SDR), wide band spectrum sensing, and environment aware real-time spectrum allocation [13, 10, 4] show promise of enabling the new paradigm of Dynamic Spectrum Access (DSA) networks. These networks aim to provide dynamic access to large swaths of spectrum w ..."
Abstract
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Cited by 129 (2 self)
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which is currently statically partitioned and underutilized. Majority of research in this area has focused on free-for-all, opportunistic methods common in ad-hoc military applications [10, 12, 13, 15, 16]. In this paper, we argue that a simpler, pragmatic approach that offers coordinated, spatially
Area-Feature Boundary Labeling
, 2009
"... Boundary labeling is a relatively new labeling method. It can be useful in automating the production of technical drawings and medical drawings, where it is common to explain certain parts of the drawing with text labels, arranged on its boundary so that other parts of the drawing are not obscured. ..."
Abstract
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Cited by 2 (0 self)
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Boundary labeling is a relatively new labeling method. It can be useful in automating the production of technical drawings and medical drawings, where it is common to explain certain parts of the drawing with text labels, arranged on its boundary so that other parts of the drawing are not obscured
Artificial Boundaries and Flux and Pressure Conditions for the Incompressible Navier-Stokes Equations
, 1992
"... Fluid dynamical problems are often conceptualized in unbounded domains. But most methods of numerical simulation then require a truncation of the conceptual domain to a bounded one, thereby introducing artificial boundaries. Here, we analyze our experience in choosing artificial boundary conditions ..."
Abstract
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Cited by 96 (8 self)
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Fluid dynamical problems are often conceptualized in unbounded domains. But most methods of numerical simulation then require a truncation of the conceptual domain to a bounded one, thereby introducing artificial boundaries. Here, we analyze our experience in choosing artificial boundary conditions
Dynamics of gray matter loss in Alzheimer’s disease
- Journal of Neuroscience
, 2003
"... We detected and mapped a dynamically spreading wave of gray matter loss in the brains of patients with Alzheimer’s disease (AD). The loss pattern was visualized in four dimensions as it spread over time from temporal and limbic cortices into frontal and occipital brain regions, sparing sensorimotor ..."
Abstract
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Cited by 105 (15 self)
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We detected and mapped a dynamically spreading wave of gray matter loss in the brains of patients with Alzheimer’s disease (AD). The loss pattern was visualized in four dimensions as it spread over time from temporal and limbic cortices into frontal and occipital brain regions, sparing sensorimotor
Dynamical statistical shape priors for level set based tracking
- IEEE Transactions on Pattern Analysis and Machine Intelligence
, 2006
"... Abstract. In recent years, researchers have proposed to introduce statistical shape knowledge into the level set method in order to cope with insufficient low-level information. While these priors were shown to drastically improve the segmentation of images or image sequences, so far the focus has b ..."
Abstract
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Cited by 102 (8 self)
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Abstract. In recent years, researchers have proposed to introduce statistical shape knowledge into the level set method in order to cope with insufficient low-level information. While these priors were shown to drastically improve the segmentation of images or image sequences, so far the focus has
Results 1 - 10
of
2,140
