نتایج جستجو برای: small circular features

تعداد نتایج: 1325639  

The aim of the current study was to investigate the histological and histochemical characteristics of large and small intestines of sea snake, Hydrophis cyanocinctus. Six adult sea snakes were collected from Minab beaches, located near the sea of Oman, in November, euthanized with chloroform, dissected and alimentary canal removed, tissues preparaed for sectioning and staining with Hematoxylin ...

Classical LBP such as complexity and high dimensions of feature vectors that make it necessary to apply dimension reduction processes. In this paper, we introduce an improved LBP algorithm to solve these problems that utilizes Fast PCA algorithm for reduction of vector dimensions of extracted features. In other words, proffer method (Fast PCA+LBP) is an improved LBP algorithm that is extracted ...

With the increasing use of spatial data in daily life, the production of this data from diverse information sources with different precision and scales has grown widely. Generating new data requires a great deal of time and money. Therefore, one solution is to reduce costs is to update the old data at different scales using new data (produced on a similar scale). One approach to updating data i...

حسین سهل البیع, , حمیدرضاخالصی فرد, , محمد تقی توسلی, , محممد صالحی, ,

  In this paper Fresnel diffraction of light from 1-dimensional and circular steps in reflection and transmission modes is theoretically and experimentally studied. The study shows that the diffraction pattern from each side of a step resembles the diffraction pattern from a semi infinite obstacle, but the visibility of fringes is a sensitive periodic function of the step height and the inciden...

Journal: :Physical review. D, Particles and fields 1993
Garriga Sakellariadou

We study the evolution of cosmic strings taking into account the frictional force due to the surrounding radiation. We consider small perturbations on straight strings, oscillation of circular loops and small perturbations on circular loops. For straight strings, friction exponentially suppresses perturbations whose co-moving scale crosses the horizon before cosmological time t∗ ∼ μ−2 (in Planc...

2010
Seth Warn Wesley Emeneker John Gauch Jackson Cothren Amy Apon

Given multiple images of the same scene, image registration is the process of determining the correct transformation to bring the images into a common coordinate system—i.e., how the images fit together. Featurebased registration applies a transformation function to the input images before performing the correlation step. The result of that transformation, also called feature extraction, is a l...

Journal: :Computers, materials & continua 2021

Copy-move forgery is the most common type of digital image manipulation, in which content from same used to forge it. Such manipulations are performed hide desired information. Therefore, detection methods required identify forged areas. We have introduced a novel method for features computation by employing circular block-based through local tetra pattern (LTrP) detect single and multiple copy...

Journal: :Frontiers in Human Neuroscience 2021

The complete understanding of the mammalian brain requires exact knowledge function each neuron subpopulation composing its parts. To achieve this goal, an exhaustive, precise, reproducible, and robust neuronal taxonomy should be defined. In paper, a new circular based on transcriptomic features novel electrophysiological is proposed. approach validated by analysing more than 1850 signals diffe...

2006
Qimi Jiang Hsi-Yung Feng

A new concept referred to as the batch roundness is presented in this paper. This concept is derived to illustrate the worst possible form error for a batch of circular features machined under the same conditions. It is to be used as a statistical quality measure for such a batch of circular features and evaluated by analyzing their systematic and random form error components. The definition of...

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