نتایج جستجو برای: 2 dimensional 2d

تعداد نتایج: 2890216  

Journal: :J. Visual Communication and Image Representation 2014
Liang Liao Yanning Zhang Stephen J. Maybank Zhoufeng Liu Xin Liu

We consider the problem of image recognition via two-dimensional random projection and nearest constrained subspace. First, image features are extracted by a two-dimensional random projection. The two-dimensional random projection for feature extraction is an extension of the 1D compressive sampling technique to 2D and is computationally more efficient than its 1D counterpart and 2D reconstruct...

Journal: :international journal of hematology-oncology and stem cell research 0
seyed hadi mousavi phd student of hematology, department of hematology and blood banking, faculty of medical sciences, tarbiat modares university, tehran, iran. saeid abroun associated professor of hematology, department of hematology and blood banking, faculty of medical sciences, tarbiat modares university, tehran, iran. masoud soleimani associated professor of hematology, department of hematology and blood banking, faculty of medical sciences, tarbiat modares university, tehran, iran. seyed javad mowla associated professor of genetic, department of molecular genetics, faculty of biological sciences, tarbiat modares university, tehran, iran.

allogeneic hematopoietic stem cell transplantation is used in the treatment of patients suffering from hematologic and non-hematologic disorders, but the application is limited by the identification of a suitable donor. umbilical cord blood (ucb) is an alternative source of hematopoietic stem cell (hsc) transplantation. despite all advantages, the limited cell dose is one of the  major obstacle...

2014
Hee-Chul Kim Jung-Heum Park

This paper is concerned with the paths and the cycles in d-dimensional tori with faulty vertices and/or edge. Let fv be the number of faulty vertices and fe be the number of faulty edges. It is shown that in any non-bipartite d-dimensional k1 × k2 × · · · kd torus with ki ≥ 3 for each 1 ≤ i ≤ d, (a) if fv + fe ≤ 2d − 3, there is a fault-free spanning path between any pair of non-faulty vertices...

In this paper, a new design of demultiplexer based on two-dimensional photonic crystal ringresonator is proposed. The structure is made of a hexagonal lattice of silicon rods with therefractive index 3.46 in coefficient of air with refractive index 1. The transmission efficiencyand Quality factor for our proposed demultiplexer, respectively, are more than 65% and1600. The normalized transmissio...

1998
Ulf Lindström

We describe new N -extended 2D supergravities on a (p + 1)dimensional (bosonic) space. The fundamental objects are moving frame densities that equip each (p+1)-dimensional point with a 2D “tangent space”. The theory is presented in a [p+1, 2] superspace. For the special case of p = 1 we recover the 2D supergravities in an unusual form. The formalism has been developed with applications to the s...

2001
I. E. Tamm

An action describing the dynamics of an infinite collection of massless integer spin fields with spin s = 0, 1, 2, 3, ..., ∞ corresponding to totally symmetric Young tableaux representations of Poincare and anti-de Sitter groups is constructed, in any dimension d, in terms of two functions on a 2d-dimensional manifold. The action is represented by an integral localized on a 2d − 1-dimensional h...

2013
Monika DÁVIDEKOVÁ

Authors in [1] proposed generating method of two-dimensional (2D) quasi orthogonal complete complementary codes (QOCCC) with element order N. This construction is based on one-dimensional (1D) complete complementary codes (CCC) introduced in [2]. New constructions of CCC with shorter 1D-CCC element length were published recently [3-4]. In this paper former construction is generalized for using ...

2007
Ewout Vansteenkiste Coert Metz Paul Govaert Wiro Niessen Wilfried Philips

We present a technique to reconstruct dilated lateral brain ventricles, indicative for preterm brain pathologies, in three-dimensional (3D) ultrasound (US) volumes. A sequence of two-dimensional (2D) US images is reconstructed into an isotropic 3D volume using magnetic probe tracking information and specialized software. Subsequently, a slice by slice 2D ventricle area delineation is performed ...

Journal: :JACC. Cardiovascular imaging 2016
Mark F Smith Vasken Dilsizian

F rom painters to cartographers to medical imagers, humans have faced the challenge of depicting the 3-dimensional (3D) world using 2-dimensional (2D) displays. The transition from planar to tomographic imaging engendered various approaches to display the physiologic information contained in 3D single-photon emission computed tomography (SPECT) and positron emission tomography (PET) cardiac stu...

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