A variational level set methodology without reinitialization for the prediction of equilibrium interfaces over arbitrary solid surfaces
نویسندگان
چکیده
منابع مشابه
Medical Image Segmentation using Level set Method without reinitialization
In this paper we have proposed a segmentation method based on level set without re-initialization approach, applied with certain specific shape based model, for medical images. Level set method without re-initialization, with certain specific shape based model has advantages over level set method with reinitialization. Large time steps are possible with the proposed method which speeds up the p...
متن کاملThe Augmented Fast Marching Method for Level Set Reinitialization∗
Including derivative information in the modelling of moving interfaces has been proposed as one method to increase the accuracy of numerical schemes with minimal additional cost. Here a new level set reinitialization technique using the fast marching method is presented. This augmented fast marching method will calculate the signed distance function and up to the secondorder derivatives of the ...
متن کاملA Locally Gradient-Preserving Reinitialization for Level Set Functions
The level set method commonly requires a reinitialization of the level set function due to interface motion and deformation. We extend the traditional technique for reinitializing the level set function to a method that preserves the interface gradient. The gradient of the level set function represents the stretching of the interface, which is of critical importance inmany physical applications...
متن کاملDistance Field Reinitialization for Localized Level Set Methods
Bibliography 83 Preface Since their introduction by Osher and Sethian [14], level set methods have been used to solve a wide range of problems, including, but not limited to • Photolithography Development, Etching and Deposition in Semi-conductor Manufacturing (see [2]), • Robotic Navigation with Constraints (see [9]). More examples of applications, further references, and a survey can be found...
متن کاملOptimal control for reinitialization in finite element level set methods
A new optimal control control problem that incorporates the residual of the Eikonal equation into its objective is presented. The formulation of the state equation is based on the level set transport equation but extended by an additional source term, correcting the solution so as to minimize the objective functional. The method enforces the constraint so that the interface cannot be displaced....
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: Journal of Computational Physics
سال: 2020
ISSN: 0021-9991
DOI: 10.1016/j.jcp.2019.109184