منابع مشابه
Palaeopathology of Danish skeletons
process of industrialization and urbanization. Woolf reveals the enduring roots of poverty in the disruptions offamily life by age, death, and illness, coupled with underemployment and subsistence wages, particularly for women, children, and the aged. He also explores the continuity in official attitudes towards poverty, and in the various strategies which became fashionable across Europe to co...
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A new method for determining skeletons of 3D shapes is described. It is a combination of the approach based on the ”grass-fire” technique and Zhu’s approach based on first finding portions of the shape where its width is approximately constant. The method specifically does not require presmoothing of the shape and is robust in the presence of noise. In an appendix, a method based on variational...
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We prove that for every ε ∈ (0, 1) there exists Cε ∈ (0,∞) with the following property. If (X, d) is a compact metric space and μ is a Borel probability measure on X then there exists a compact subset S ⊆ X that embeds into an ultrametric space with distortion O(1/ε), and a probability measure ν supported on S satisfying ν (Bd(x, r)) 6 (μ(Bd(x,Cεr)) 1−ε for all x ∈ X and r ∈ (0,∞). The dependen...
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Let u be the equilibrium potential of a compact set K in R. An electrostatic skeleton of K is a positive measure μ such that the closed support S of μ has connected complement and no interior, and the Newtonian (or logarithmic, when n = 2) potential of μ is equal to u near infinity. We prove the existence of an electrostatic skeleton for every convex polytope. Our proof raises several interesti...
متن کاملEulidean Skeletons
We present a new method for the skeletonization of 2-dimensional or 3-dimensional objects. First, we introduce two local measures, and d, to characterize skeleton points, whose good localizaa tion is ensured by Euclidean distance mapping techniques. These measures allow us to control the detail of the resulting skeleton. Thresholding these measures generally does not yield well-deened skeleton:...
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ژورنال
عنوان ژورنال: American Journal of Physical Anthropology
سال: 1921
ISSN: 0002-9483,1096-8644
DOI: 10.1002/ajpa.1330040305