|
|
|
COMPUTATIONAL CONFORMAL GEOMETRY
XIANFENG
DAVID
GU
ASSOCIATE PROFESSOR COMPUTER SCIENCE DEPARTMENT STONY BROOK UNIVERSITY (SUNY @ STONY BROOK) STONY BROOK, NEW YORK 11794 |
|
|||
|
UNIFORMIZATION THEOREM - RICCI FLOW |
||||
|
|
|
|
||
| Ricci Flow - General Closed Surfaces | Ricci Flow - General Open Surfaces | Geometric Structures | ||
|
(1) Spherical structure
on S2, (2) Euclidean structure on R2, (3)
Hyperbolic structure on Poincare Disk H2: Conformal
Structures. |
||||
|
GLOBAL CONFORMAL PARAMETERIZATION - HOLOMORPHIC 1-FORM |
||
|
|
|
|
| Step1: Harmonic 1-Forms | Step2: Conjugate Harmonic 1-Forms | Step3: Holomorphic 1-Forms |
|
|
||||
![]() |
![]() |
![]() |
||
| Riemannian Mapping | Annulus Conformal Mapping | Generalized Koebe's Conformal Mapping | ||
|
QUASI-CONFORMAL MAPPING |
||
![]() |
![]() |
![]() |
| Qusi-Riemannian Mapping | Quasi-Annulus Mapping | Quasi-Koebe's Mapping |
|
|
||||
|
|
|
|
||
|
Hyper (front-back) |
Camel (front-back) | Dino | Bull | |
|
|
||||
![]() ![]() |
![]() ![]() ![]() ![]() |
![]() |
||
| Stanford Bunny | David (front-back-left-right) | Bird | ||
|
APPLICATIONS IN MEDICAL IMAGING |
||
|
|
|
|
| Brain Morphology | Virtual Colonoscopy | Supine-Prone Colon Registration |
|
APPLICATIONS IN COMPUTER VISION |
||||
|
|
|
|
||
|
Dynamic Conformal Mapping |
Non-Rigid Surface Registration | Ricci Flow for Shape Analysis | ||
|
APPLICATIONS IN GRAPHICS |
||||
|
|
![]() ![]() |
|||
| Scientific Computation | Texture Mapping | |||
|
|
|
|||
| Geometry Image | Stanford Bunny - Texture Mapping | |||
|
APPLICATIONS IN GEOMETRIC MODELING |
||||
|
|
||||
| Manifold Spline (Bird - Buddha - David_Head) for Inverse Engineering | ||||
|
APPLICATIONS IN WIRELESS SENSOR NETWORKING |
||
|
|
![]() |
![]() |
| Greedy Routing by Euclidean Ricci Flow | Resilient Routing in Hyperbolic Universal Covering Space | Routing by Schottky Group |
|
The materials published on this site are for non-commercial use such as research and teaching. If you need higher resolution version, please contact gu AT cs.sunysb.edu. ©2003-2010 Xianfeng David Gu http://www.cs.sunysb.edu/~guWei Zeng http://www.cs.sunysb.edu/~zengwei Last Updated: 12/15/2010 |