This paper describes an algorithm to implement image filtering and enhancement operations by processing adaptive triangular meshes that represent gray-level images. Experimental results show that these operations are significantly more efficient when they are performed upon triangular meshes than by sequentially processing all the pixels contained in the given images.

In this paper, we study the Bauer-Fike type theorems for regular matrix pairs and its general form. Besides these, we also obtain some bounds for measuring approximate generalized eigenvalues and for the perturbation of generalized eigenvalues concerning an approximate generalized invariant subspace. To estimate all these bounds, p-Hölder norm and an ad hoc pseudo-metric called p-Chordal matric...

The paper describes a set of methods to automatically acquire the Urdu nouns (and its gender) on the basis of inflectional and contextual clues. The algorithms used are a blend of computer's brute force on the corpus and careful design of distinguishing rules on the basis linguistic knowledge. As there are homograph inflections for Urdu nouns, adjectives and verbs, we compare potential inflecti...

One of the fundamental social and economic characteristics of the southern countries is the lack of development of spatial planning system whose symptom is the irregular expansion of urban settlements. Due to the ecological traits and national policy-making manner, this expansion has caused the centralization of regional metropolises in these countries. In the geographical spaces of Iran, speci...

extended abstract 1. introduction urbanization is a process which leads to the growth of cities and urban changes due to industrialization and economic development. in other words, urbanization is an inevitable and demographic force and movement which should not be neglected. informal settlements, which took place in europe after the industrial revolution at the time of the transition from the ...

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www.thelancet.com/lancetgh Vol 5 March 2017 e240 Community-based bundled health interventions are complex and challenging to implement, monitor, and assess in informal settlements (slums). Such settlements in urban areas are generally characterised by congestion, squalid conditions, deprivation, violence, crime, and poor sanitation. In Asia and Africa, the numbers of informal settlements have g...

All contemporary landscapes on the planet feature the aggressive growth of cities and other urbanizations. In 1990, we suggested that the similarity between urban forms and malignant lesions could be studied with the use of fractal geometry. Two separate disciplines have emerged since then: the study of urban morphology using various fractal analyses, and “oncological mathematics,” the study of...

where skm are real numbers, pk0(t) ∈ C2[a,b], p00(t)p20(t) = 0, p00(t)/p20(t) > 0 for t ∈ [a,b]. Let s2m < s0m + 2, s2m ≤ s1m + 2, m = 0,1, that is, we consider the case of so-called regular singularities. Operators with irregular singularities possess different qualitative properties and require different investigations. Since the solutions of (1.1) may have singularities at the endpoints of t...