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in this paper, we present a novel approach for image selective smoothing by the evolution of two paired nonlinear partial differential equations. the distribution coefficient in de-noising equation controls the speed of distribution, and is determined by the edge-strength function. in the previous works, the edge-strength function depends on isotropic smoothing of the image...
this paper presents a new numerical method for solution of eikonal equation in two dimensions.in contrast to the previously developed methods which try to define the solution surface by its level sets(contour curves), the developed methodology identifies the solution surface by resorting to its characteristics. the suggested procedure is based on the geometric properties of the solution surface...
this study tries to expand the understanding of the relationship between transformational leadership and organizational innovation at the organizational level. this research proposes a conceptual framework to explain the components of transformational leadership while focusing on the relationship between each component and organizational innovation. a sample of 219 managers from 63 companies in...
statement of the problem delayed loading is one of the anxieties of implant patients. immediate loading can solve the problem and make patients more satisfied. purpose the present study was aimed to compare the marginal bone level in periapical radiographs of maxi implants under different loading (immediate and delayed) patterns. material and methods this split mouth experimental study included...
matroids are important combinatorial structures and connect close-lywith graphs. matroids and graphs were all generalized to fuzzysetting respectively. this paper tries to study connections betweenfuzzy matroids and fuzzy graphs. for a given fuzzy graph, we firstinduce a sequence of matroids from a sequence of crisp graph, i.e.,cuts of the fuzzy graph. a fuzzy matroid, named graph fuzzy matro...
congenital factor x deficiency is a rare autosomal recessive bleeding disorder that presents with variable bleeding tendency and prolonged coagulation tests, prothrombin time, and partial thromboplastin time. thromboembolic events have not been reported in patients with factor x deficiency yet. herein, we report a patient with factor x deficiency who had recurrent venous thromboembolic events.
a new adaptive diffusive function for magnetic resonance imaging denoising based on pixel similarity
although there are many methods for image denoising, but partial differential equation (pde) based denoising attracted much attention in the field of medical image processing such as magnetic resonance imaging (mri). the main advantage of pde-based denoising approach is laid in its ability to smooth image in a nonlinear way, which effectively removes the noise, as well as preserving edge throug...
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