This article presents a method to detect lines in fisheye and distorted perspective images. The detection is performed with subpixel accuracy. By detecting lines in the original images without warping the image with a reverse distortion, the detection accuracy can be noticeably improved. The combination of the edge detection and the line detection to a single step provides a more robust and mor...

A edge 2-rainbow dominating function (E2RDF) of a graph G is a ‎function f from the edge set E(G) to the set of all subsets‎ ‎of the set {1,2} such that for any edge.......................

the evaluation of the edge effects of forest roads on ecosystem is very useful to understand changes from forest road. with this regard, in this research the effect of main forest road construction on regeneration and biodiversity of established trees in edge of forest road was investigated at 35 m distance into forest area. an existing 10 years old road segment, with same physiographic propert...

The interaction of platinum with water plays a key role in (electro)catalysis. Herein, we describe a combined theoretical and experimental study that resolves the preferred adsorption structure of water wetting the Pt(111)-step type with adjacent (111) terraces. Double stranded lines wet the step edge forming water tetragons with dissimilar hydrogen bonds within and between the lines. Our resul...

the edge szeged index is a new molecular structure descriptor equal to the sum of products mu(e)mv(e) over all edges e = uv of the molecular graph g, where mu(e) is the number of edges which its distance to vertex u is smaller than the distance to vertex v, and nv(e) is defined analogously. in this paper, the edge szeged index of one-pentagonal carbon nanocone cnc5[n] is computed for the first ...

Abstract The safe and reliable operation of power transmission lines is the key to sustainable stable grids. Using artificial intelligence techniques for channel status monitoring greatly improves inspection efficiency lines. However, discrimination mostly conducted on cloud side, which does not meet requirement real-time processing. In this paper, we build an intelligent system based edge comp...

The central edge of an opposing pair of luminance gradients (COC edge) makes adjoining regions with identical luminance appear to be different. This brightness illusion, called the Craik-O'Brien-Cornsweet effect (COCe), can be explained by low-level spatial filtering mechanisms (Dakin and Bex, 2003). Also, the COCe is greatly reduced when the stimulus lacks a frame element surrounding the COC e...

Edge detection is one of the algorithms used in Digital Image Processing. This algorithm serves to identify line/edge image object highlight boundary lines information. a set connected pixels (connected pixels) that restricts objects contained image. Senses eye by humans see.However, human has its limitations capturing electromagnetic signals.Therefore, created computer or imaging machine can c...

The vertex-edge Wiener polynomials of a simple connected graph are defined based on the distances between vertices and edges of that graph. The first derivative of these polynomials at one are called the vertex-edge Wiener indices. In this paper, we express some basic properties of the first and second vertex-edge Wiener polynomials of simple connected graphs and compare the first and second ve...

This paper proposes a new algorithm to extract the rectangle in images. It’s goal is to meet the requirement of the truck’s compartment positioning and assure that some work are done inside the truck’s compartment. Firstly, the Canny operator is used to calculate the edge of the image, because it is sensitive to the image texture features. Secondly, the Canny edge is transformed with the Hough ...