The study presents an attempt to correlate the spatial distribution of damages and the ground deformation measure by SAR interferometric stacking technique in the case of Athens 7-9-99 earthquake. Damage maps were created for building collapsed and affected areas, built in a GIS environment. The location of the collapsed building was identified using a portable GPS resever and introduced as poi...

We present an algorithm for nonrigid contour tracking in heavily cluttered background scenes. Based on the properties of nonrigid contour movements, a sequential framework for estimating contour motion and deformation is proposed. We solve the nonrigid contour tracking problem by decomposing it into three subproblems: motion estimation, deformation estimation, and shape regulation. First, we em...

Regularized nonrigid medical image registration algorithms usually estimate the deformation by minimizing a cost function, consisting of a similarity measure and a penalty term that discourages “unreasonable” deformations. Conventional regularization methods enforce homogeneous smoothness properties of the deformation field; less work has been done to incorporate tissue-type-specific elasticity...

Abstract A method that estimates invisible cracks from the surface based on deformation measured by digital image correlation (DIC) is being developed. An inverse problem setup to estimate such deformation. Surface deformation, DIC method, contains noise. Inverse problems have ill-conditions. The regularization applied in this study an extension of joint estimation maximum a posteriori (JE-MAP)...

The aim of this research is to investigate the terrain deformation in the metropolitan area of Sydney using multiple satellite radar imagery. The persistent scatterer interferometry (PSI) strategy developed at Geodesy and Earth Observing Systems Group (GEOS) of the University of New South Wales (UNSW) is used to map the land deformation in Sydney with C-band ENVISAT radar images in this study. ...

This paper presents a new method for determining the minimal non-rigid deformation between two 3-D surfaces, such as those which describe anatomical structures in 3-D medical images. Although we match surfaces, we represent the deformation as a volumetric transformation. Our method performs a least squares minimization of the distance between the two surfaces of interest. To quickly and accurat...

We propose a general method to determine the material parameters for arbitrary shapes of cloak based on the Poisson’s equation to map the coordinate transformation. As a result, we can obtain the diverse deformation material properties and then the field distribution. This method, compared with the previous technique presented in literature, can determine the countless transformation forms, so ...

Motivated by previous work on deformation theory of higher order theta-characteristics, we introduce a weighted Gaussian map γa,b(X,L), where a, b are positive integers, X is a smooth projective variety, L is a line bundle on X and γ1,1(X,L) is the ordinary Gaussian map for (X,L). We establish a sharp lower bound on its rank and we investigate the extremal cases for curves. MSC 2000: 14H99, 14F10

This paper describes a novel method for simulating soft tissue deformation with image-based rendering. It is based on the association of depth map with colour texture and the incorporation of microsurface details to generate photo-realistic images representing soft tissue deformations. In a pre-processing step, the depth map describing the surface is separated into two distributions correspondi...

Given a collection of objects on a map, we seek a method of enlarging the objects over time so that these objects are still visible when the map is zoomed out. This question is brought to rigor as well-defined problems in homotopic deformation. We ask the objects, over time, to preserve topology, area-ratios and relative position. A solution is conjectured, using differential methods, leading t...