Alternative area-perimeter ratios for measurement of 2D shape compactness of habitats

Bogaert, Jan; Rousseau, Ronald; Hecke, P Van; Impens, I.

doi:10.1016/s0096-3003(99)00075-2

Cited by 94 publications

(55 citation statements)

References 5 publications

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“…Bogaert holds that shape compactness can be determined by a relationship of these two features (21) (Bogaert, 2000). Thus, a measure calculated combining these two features demands less computational work.…”

Section: Compactness By Perimetres Ratiosmentioning

confidence: 99%

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Border and Asymmetry measuring of skin lesion for diagnostic of melanoma using a perimeter ratio

2016

AJCSIT

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Section: Compactness By Perimetres Ratiosmentioning

confidence: 99%

“…In (21) (Bogaert, 2000), authors established that the square with the closest shape area to the area ( pixels) of a given shape can be obtained as follows: If there is an integer 1 for which 1 2 = , then the square has length sides equal to 1 . If > 1 2 then the square has length sides equal to 2 ; where 2 = 1 + 1.…”

Section: Compactness By Perimetres Ratiosmentioning

confidence: 99%

Border and Asymmetry measuring of skin lesion for diagnostic of melanoma using a perimeter ratio

2016

AJCSIT

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“…Two main analysis types can be distinguished. Firstly, patch shape can be compared to a reference shape, generally an isodiametric one such as a disk or square (Patton 1975;Bogaert et al 2000c;Bogaert 2001). This analysis is useful when estimating edge effects, which are proportionally larger for elongated or complex shapes than for isodiametric ones of equal area (Forman and Godron 1986;Toyi et al 2013b).…”

Section: Measuring Anthropogenic Patternsmentioning

confidence: 99%

“…8.5); the principle could also be interpreted otherwise: of all shapes with an equal area, the disk is characterized by the shortest perimeter. For raster based data, the reference perimeter does not correspond to a circular shape but is a function of the number of pixels composing the patch (Bogaert et al 2000c;Bogaert and Hong 2004).…”

Section: Measuring Anthropogenic Patternsmentioning

confidence: 99%

Anthropogenic Effects in Landscapes: Historical Context and Spatial Pattern

Bogaert

Vranken

André

2014

Biocultural Landscapes

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Bio-cultural landscapes are characterized by anthropogenic pattern features, of which the measurement constitutes a key step in landscape analysis. Metrics and strategies for this measurement of anthropogenic patterns and their dynamics are discussed, considering the pattern/process paradigm, the patchcorridor-matrix model and the complementarity of landscape composition and configuration as conceptual benchmarks. Historically, noticeable anthropogenic effects are accepted to have appeared in landscapes after the invention of agriculture and further trends of landscape change could be linked to the development of agriculture. Through time, a sequence of landscape dynamics with three stages is expected, in which a natural landscape matrix is initially substituted by an agricultural one; urban patch types will later on dominate the matrix as a consequence of ongoing urbanization. The importance of the development of agriculture and its productivity for the evolution of settlements, villages and cities is emphasized. Anthropogenic change of landscapes confirms the status of geographical space as a limited resource.

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“…Наприклад, за умов постійної форми, збільшення розміру полів буде супроводжуватися зменшенням відношення периметру поля до його площі. Індекс форми (SHAPE) є відношенням периметру до найменшого можливого периметру поля відповідної площі квадратної форми (Milne, 1991, Bogaert et al, 2000. Змінюється від 1 (поле має квадратну форму) і до нескінченності при набутті полем більш іррегулярної форми.…”

Section: динаміка розмірів сільськогосподарських полівunclassified

Динаміка Розмірів Сільськогосподарських Полів Як Функція Їх Розмірів Та Форми

Жуков¹,

Sirovatko²,

Ponomarenko³

2007

Ukr J Ecol

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We estimated the size and shape characteristics of agricultural fields within the administrative area and identified patterns of the margin trends from 1950-1960 till the present time. Here we considered large-scale soil maps for the area of Vasilkovsky district of the Dnepropetrovsk region, which were drawn up in 1950-1960. To assess the landscape metric we used FRAGSTATS program which allow to make conformity assessment of the observed distributions of field sizes regards the normal, exponential, log-normal, gamma, Weibull, and Pareto distributions. We also used Box-Cox transformation to convert the experimental data into the normal distribution law for the further application of the transformed data in regression analysis. We estimated that the area of agricultural fields ranged from 1.20 to 269.00 hectares during the period of large-scale mapping in 1950-1960. The variation limits of the field sizes based on the results of remote sensing data and in our time they are 2,.5-266.57 hectares. Area of the fields in different periods strongly correlate and are statistically significant (r = 0.98, p = 0.00). Field sizes currently associated with the field sizes in the 50-60 years of linear regression. Shape parameters and field sizes significantly correlated, therefore, to establish the main trends of varying shape and size of fields, as well as for nonmulticollinearity variables for regression analysis, we performed a multivariate factor analysis. An important aspect of the structuring of the agri-landscape is the location of settlements and, therefore, the fields distance from them. In results obtained indicate that the processes increase and decrease the size of fields in agricultural production are determined by various factors. Aspects of the shape and size of the fields associated with the dynamics of the processes that lead to variations in field areas. Fields that have shown a tendency to change their size, have different characteristics of forms and size from the stable fields. Typically, variable field size is smaller and more complex shapes.

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Alternative area-perimeter ratios for measurement of 2D shape compactness of habitats

Cited by 94 publications

References 5 publications

Border and Asymmetry measuring of skin lesion for diagnostic of melanoma using a perimeter ratio

Border and Asymmetry measuring of skin lesion for diagnostic of melanoma using a perimeter ratio

Anthropogenic Effects in Landscapes: Historical Context and Spatial Pattern

Динаміка Розмірів Сільськогосподарських Полів Як Функція Їх Розмірів Та Форми

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