Adaptive Sampling and Mesh GenerationS

نویسنده

  • S. Z. Li
چکیده

A principle in surface sampling and mesh generation is that highly curved area should be sampled densely and vice versa. This paper presents an approach for automated surface sampling and adaptive mesh generation in accordance with the principle. The approach is self-organizing, forming topology-preserving mesh from random initialization. Mesh spacing versus surface curvedness can be easily controlled by a single parameter in the shape function. Key locations can be prescribed by imposing additional boundary conditions. Experiments are presented.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Optimal Hierarchical Adaptive Mesh Construction Using FCO Sampling

This paper introduces an optimal hierarchical adaptive mesh construction algorithm using the Face-Centered Orthorhombic lattice (FCO) sampling which is a natural extension of the quincunx lattice to the 3-dimensional case. A scheme for construction of adaptive meshes is presented. Initially, a highly detailed and densely sampled regular mesh is obtained from geometry scanning or from a non opti...

متن کامل

Sampling and reconstruction with adaptive meshes

This paper introduces an approach to visual sampling and reconstruction motivated by concepts from numerical grid generation. We develop adaptive meshes that can nonuniformly sample and reconstruct intensity and range data. Adaptive meshes are dynamic models which are assembled by interconnecting nodal masses with adjustable springs. Acting as mobile sampling sites, the nodes observe interestin...

متن کامل

Parallel Rendering of 3D AMR Data on the SGI/Cray T3E

This paper describes work-in-progress on developing parallel visualization strategies for 3D Adaptive Mesh Refinement (AMR) data. AMR is a simple and powerful tool for modeling many important scientific and engineering problems. However, visualization tools for 3D AMR data are not generally available. Converting AMR data onto a uniform mesh would result in high storage requirements, and renderi...

متن کامل

New adaptive interpolation schemes for efficient meshbased motion estimation

Motion estimation and compensation is an essential part of existing video coding systems. The mesh-based motion estimation (MME) produces smoother motion field, better subjective quality (free from blocking artifacts), and higher peak signal-to-noise ratio (PSNR) in many cases, especially at low bitrate video communications, compared to the conventional block matching algorithm (BMA). Howev...

متن کامل

A mesh generation procedure to simulate bimaterials

It is difficult to develop an algorithm which is able to generate the appropriate mesh around the interfaces in bimaterials. In this study, a corresponding algorithm is proposed for this class of unified structures made from different materials with arbitrary shapes. The non-uniform mesh is generated adaptively based on advancing front technique available in Abaqus software. Implementing severa...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1995