Results 241 to 250 of about 730,113 (285)

A Piecewise Hole Filling Algorithm in Reverse Engineering

CAD Computer Aided Design, 2005
Abstract While scanning a complex part in reverse engineering, it is not possible to acquire all part of the scanned surface. Data are inevitably missing due to the complexity of the scanned part or imperfect scanning process. Missing scanned data cause holes in the created triangular mesh, so that a hole-free mesh model is prerequisite for fitting ...
exaly   +3 more sources

Interframe hole filling for DIBR in 3D videos

2015 IEEE International Conference on Consumer Electronics - Taiwan, 2015
Depth-image-based rendering (DIBR) produces multiple views efficiently. However, its process lacks some viewpoint information. There will be holes, which influences the 3D video quality. Previous DIBR techniques were mainly applied to 3D images, so it only relied on the single view and the depth map to fill the holes, but insufficient repair ...
Ching-Lung Su, Jiahua Wu, Kai-Ping Chen
openaire   +2 more sources

Hole Filling on Three-Dimensional Surface Texture

Multimedia and Expo, 2007 IEEE International Conference on, 2007
Real-world surface textures normally comprise rough surface geometry and various reflectance properties. These surface textures are different from 2D still texture as their images can therefore vary dramatically with illumination directions. Research into hole filling has long been focusing on 2D images, surfaces of 3D models or video clips to ...
Junyu Dong, Sha Ma, Li Li, Zhongda Yu
openaire   +2 more sources

Hole filling method of triangle mesh

2011 International Conference on Multimedia Technology, 2011
This paper presents an algorithm of hole filling in triangle mesh. There are four steps in this algorithm. First, the hole's boundary information is obtained by the relations of vertex, edge and angle in the triangle mesh. Secondly, the hole is directly filled by triangles according to the order of the angles in the hole.
null Xiaohe Li, null Lan Kang, null Hu Xiao   +2 more
openaire   +1 more source

Holes filling of scattered point cloud based on simplification

Multimedia Tools and Applications, 2021
To address the problem of feature points missing and surface holes after 3D reconstruction. A method of filling holes after extracting feature points of point cloud data is proposed. In this paper, the method of extracting feature points by multi-discriminant parameters is used to simplify the point cloud. The original shape features are retained while
Hui Chen 0007, Wen Cui
openaire   +2 more sources

A hole filling algorithm for medical imaging

The 2nd International Conference on Information Science and Engineering, 2010
Surface integrity of 3D medical imaging is crucial for surgery simulation or virtual diagnoses. However, undesirable holes often exist due to external damage on bodies or accessibility limitation on scanners. To bridge the gap, the paper proposes an algorithm of filling holes for 3D medical image data based on moving least squares (MLS) method.
null Lv Guo, null Yonghui Gao, null Yin Li, null Jie Yang   +3 more
openaire   +1 more source

Through-Hole Filling by Copper Electroplating

Journal of The Electrochemical Society, 2008
Through holes (THs) with different shapes were formed by laser drilling on a printed circuit board to evaluate the filling capability of two copper plating formulas. The shapes of these THs were cylindrical, V- and X-shaped. Two copper plating formulas, accelerator-free formula (AFF) and accelerator-containing formula (ACF), were employed in this work.
Wei-Ping Dow, Hsiang-Hao Chen, Ming-Yao Yen, Wei-Hsiang Chen, Kao-Hsuang Hsu, Po-Yao Chuang, Hiroshi Ishizuka, Nobuo Sakagawa, Ryoichi Kimizuka   +8 more
openaire   +1 more source

An efficient and collision-free hole-filling algorithm for orthodontics

The Visual Computer, 2013
Hole filling of teeth and gums is an essential stage in orthodontics after segmentation. The patching mesh should keep the morphological features of generic teeth and gums while avoiding collision between two adjacent teeth. This paper presents an efficient hole-filling algorithm to reconstruct the missing part of teeth and gums.
Nina Qiu, Ran Fan, Lihua You, Xiaogang Jin 0001   +3 more
openaire   +2 more sources

Universal Hole-Filling Strategies for Coprime Arrays

IEEE Transactions on Signal Processing
Coprime arrays (CAs) are found to be captivating for striking a balance among the increased number of degrees of freedom (DOFs), reduced mutual coupling and applicable aperture. However, holes in the difference co-array (DCA) reduce the achievable number of DOFs, and further restrict the complete utilization of the aperture.
Xiang Li 0034, Ming Jin 0004, Xiang-Tian Meng, Bing-Xia Cao, Feng-Gang Yan, Maria Greco 0001, Fulvio Gini   +6 more
openaire   +2 more sources

Feature Sensitive Hole Filling with Crest Lines

2006
Feature sensitive hole filling is important for many computer graphics and geometric modeling applications. In this paper, we address the problem of reconstructing the salient features when filling holes in mesh. It respects fine shape features and works well on various types of shapes, including natural mesh and mechanical parts.
Mingxi Zhao, Lizhuang Ma, Zhihong Mao, Zhong Li   +3 more
openaire   +1 more source