Line simplification is an important component of map generalization. In recent years, algorithms for line simplification have been widely researched, and most of them are based on vector data. However, with the increasing development of computer vision, analysing and processing information from unstructured image data is both meaningful and challenging. Therefore, in this paper, we present a ne...

The problem of detecting all possible digital line components contained in a given binary edge image is one of the most fundamental problems in pattern recognition and a great number of algorithms have been proposed under the name of Hough Transform [3, 4]. Most of them are based on the voting technique on a subdivided parameter space. Our basic idea is as follows: When we parameterize a line p...

please cite this article as: ordobazari m, naqavi al-hosseini aa, zafarmand h. a novel approach for craniofacial symmetry evaluation: using the midsagittal reference line drawn from “crista gali” with nhp technique. novel biomed 2013;1(2):48-53. background and objective: the purpose of this study was the determination of midsagittal reference line (msl) for craniofacial asymmetry assessment by ...

in this essay, through pondering into meaing of a line of verse versified by khaghani shervani and surveying and criticism on the points which have been purposed about its intrerpretation and description since of yore, we have tried to explain about term “myan khane” (literally world field) within the poem of this leading versifier (6th hegira cen./ 13th ad cen.). it seems such interpretation f...

The most successful recent approaches to partially observable Markov decision problem (POMDP) solving have largely been point-based approximation algorithms. These work by selecting a finite number of belief points, computing alpha-vectors for those points, and using the resulting policy everywhere. However, if during execution the belief state is far from the points, there is no guarantee that...

The problem of detecting straight lines arises frequently in image processing and computer vision. Here we consider the problem of extracting lines from range images and more generally from sets of three-dimensional (3D) points. The problem is stated as follows. Given a set Γ of points in 3D space and a non-negative constant , determine the line that is at a distance at most from the maximal nu...

Until the 1990’s the only known finite linear spaces admitting line-transitive, pointimprimitive groups of automorphisms were Desarguesian projective planes and two linear spaces with 91 points and line size 6. In 1992 a new family of 467 such spaces was constructed, all having 729 points and line size 8. These were shown to be the only linear spaces attaining an upper bound of Delandtsheer and...

second, they capture the gross structure of the lines in the original image. They describe the end points, corners, A novel method for vectorizing line drawing images is presented. The method is based on a sequence of a standard vectorijunctions, and other special points in the image, i.e. the zation algorithm and maximum threshold morphology, which obviously important (dominant) points of a ve...

statement of the problem: although all-ceramic restorations are broadly used, there is a lack of information concerning how their fit is affected by fabrication procedure and marginal configuration. purpose: the purpose of this study was to evaluate the marginal fit of zirconia cad/cam ceramic crowns before and after porcelain firing. the influence of finish line configuration on the marginal f...