A Unifying Framework for $n$-Dimensional Quasi-Conformal Mappings
نویسندگان
چکیده
With the advancement of computer technology, there is a surge interest in effective mapping methods for objects higher-dimensional spaces. To establish one-to-one correspondence between objects, quasi-conformal theory can be utilized ensuring bijectivity mappings. In addition, it often desirable mappings to satisfy certain prescribed geometric constraints and possess low distortion conformality or volume. this work, we develop unifying framework computing $n$-dimensional More specifically, propose variational model that integrates distortion, volumetric landmark correspondence, intensity mismatch, volume prior information handle large variety deformation problems. We further prove existence minimizer proposed devise efficient numerical solve optimization problem. demonstrate effectiveness using various experiments two three dimensions, with applications medical image registration, adaptive remeshing, shape modeling.
منابع مشابه
Large Deformation Registration via n-dimensional Quasi-conformal Maps
We propose a new method to obtain registration between n-dimensional manifolds with very large deformations. Given a set of landmark correspondences, our algorithm produces an optimal diffeomorphism that matches prescribed landmark constraints. The obtained registration is a n-dimensional quasi-conformal map. The basic idea of the model is to minimize an energy functional with a conformality te...
متن کاملA Mel’nikov vector for N-dimensional mappings
We use the Fredholm alternative to derive a Mel’nikov vector for perturbations of N-dimensional maps with homoclinic connections. If the unperturbed mapping is integrable, this vector assumes a simple form, which we use to determine conditions for transversal and tangential intersection between the invariant manifolds in a four-dimensional map of the McMillan type. We also discuss conditions fo...
متن کاملPlanar morphometry, shear and optimal quasi-conformal mappings
References 3.full.html#ref-list-1 http://rspa.royalsocietypublishing.org/content/469/2153/2012065 This article cites 31 articles, 2 of which can be accessed free Subject collections (77 articles) differential equations (47 articles) computational mathematics (261 articles) applied mathematics Articles on similar topics can be found in the following collections Email alerting service he...
متن کاملEngineering antenna radiation patterns via quasi-conformal mappings.
We use a combination of conformal and quasi-conformal mappings to engineer isotropic electromagnetic devices that modify the omnidirectional radiation pattern of a point source. For TE waves, the designed devices are also non-magnetic. The flexibility offered by the proposed method is much higher than that achieved with conformal mappings. As a result, it is shown that complex radiation pattern...
متن کاملAutomorphisms and quasi-conformal mappings of Heisenberg-type groups
The Lie algebras of trace-zero derivations of Heisenberg-type groups are explicitly characterized, along with the connected component of their groups of measure preserving automorphisms. We establish a general criterion on properties of the stabilizer of a lattice in a simply connected nilpotent Lie group and apply it to the full family of H -type Lie groups. A necessary condition for the exist...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Siam Journal on Imaging Sciences
سال: 2022
ISSN: ['1936-4954']
DOI: https://doi.org/10.1137/21m1457497