curve evolution
Recognition of Shapes for Object Retrieval in Image Databases by Discrete Curve Evolution and Two Consecutive Primitive Edges
... image retrieval of high-level image analysis. Contour-based and skeleton-based representations are important for object recognition in different areas. In this paper, we proposed a novel method to integrate the ...
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A Hybrid Energy Model for Region Based Curve Evolution - Application to CTA Coronary Segmentation
... Methods: The proposed hybrid energy couples an intensity-based local term with an efficient discontinuity-based global model of the image for optimal seg- mentation. The segmentation is achieved using a level set ...
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A PARALLEL ARCHITECTURE FOR CURVE-EVOLUTION PARTIAL DIFFERENTIAL EQUATIONS
... its evolution in the time. The interface evolution imposes frequent and random memory ...the curve (Kimmel, 1995) imposing more or less frequent ...
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Contour matching using ant colony optimization and curve evolution
... A modified ACO matching approach has been proposed by Ruberto and Morgera 2011 based on genetic algorithm; only dominant points are used instead of the sampling distribution of contour p[r] ...
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Online Full Text
... of curve evolution. The basic idea is, starting with an initial curve C, to deform the curve to the boundary of the object, under some constraints from the ...simulate curve ...
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Fast Evolution of Curve Based On Chan-Vese Model for Specific Images
... Active contours can be classified as parametric active contours and geometric active contours according to their representation and implementation. Geometric active contours were in use now a days, which provide solution ...
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Online Full Text
... Among available segmentation methods, Level set-based geometric active contour by using the theory of curve evolution shows promising results in complicated images like medical images[5]. Because it can ...
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Polarimetric SAR Image Object Segmentation via Level Set with Stationary Global Minimum
... Firstly, the minimizer, which is obtained by the min- imization of energy functional (14), may become a local minimizer during curve evolution. Because the likelihood terms of functional (14) are a modified ...
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Detection of Built up Areas from High Resolution Satellite Images
... SUSAN detector, Harris detector, wavelet based detector and blob detector are some famous corner detection techniques. SUSAN can work well when the noise is present because this corner detector does not require ...
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Curve and Polygon Evolution Techniques for Image Processing
... the evolution, a weak solution is ...a curve with a propagating flame, and once a point is ignited by the expanding flame (curve), it stays ...The curve evolution equations we develop ...
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The application of Gompertz curve in the curve fitting of urbanization
... Gompertz curve was proposed in 1825 by ...Gompertz curve is similar to Logistic curve. As a common S-curve, it is often used to describe growth of some plants and economic ...Gompertz ...
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Mechanism of Oxygen Reactions at Porous oxide Electrodes Part 2 Oxygen evolution at ruthenium dioxide, iridium dioxide and mixed ruthenium iridium oxide electrodes in aqueous acid and alkaline solution
... oxygen evolution reaction (OER) has usually been in terms of the formation of discrete adsorbed intermediates such as OH radicals, which subsequently react with other intermediates or with the electrolyte to ...
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An Evolutionary Model with Interaction between Development and Adoption of New Technologies
... certain extent the appearance of the constant A in Theorems 1 and 2. Let us consider the substantive meaning of these propositions. A s- sume that initially the firms are arbitrarily distributed over a finite number of ...
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Accelerated cosmological expansion without tension in the Hubble parameter - Fast evolution of the Hubble parameter H(z)
... Fast evolution (10) arises from novel behavior in the deceleration parameter q(z), that changes the Hamiltonian energy constraint (9) to an ordinary di ff erential equation which is second order in time, rather ...
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Markets Evolution After the Credit Crunch
... The paper is organized as follows. In section 2 we report the main changes and market evidences that characterize the most relevant interest rates of the interbank market since the explosion of the financial crisis. In ...
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The tangent spherical image and ccr curve of a time like curve in L3
... 1 Basic concepts Definition . An arbitrary curve α : I –→ L in the space L can locally be space-like, time-like or a null curve if, respectively, all of its velocity vectors α s are [r] ...
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Interest Rates After The Credit Crunch: Multiple Curve Vanilla Derivatives and SABR
... The Forward Start Interest Rate Swap contracts considered here are characterized by a floating leg on Euribor 6M with 6- month frequency vs a fixed leg with annual frequency, a forward start date and maturity dates ...
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Survey on elliptical curve cryptography
... comparison with non-ECC cryptography (with plain Galois fields as a basis) is the same level of security provided by keys of smaller size. Elliptic curves are applicable for encryption, digital signatures, pseudo-random ...
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The parasite clearance curve
... estimates within an approximate 4-6 hour time window. Whereas patients with severe malaria present with para- sites at any mean age of development, in patients who present with uncomplicated falciparum malaria, young ...
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curve building
... the curve is smooth, while avoiding bulges in regions where the curve has ...enhanced curve remains consistent with the original input ...this curve are labeled “Smoothed” in Figure ...factor ...
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