Automatic Point Clouds Registration Method Based on Mesh Segmentation

2013 ◽  
Vol 423-426 ◽  
pp. 2587-2590
Author(s):  
Li Hua Fan ◽  
Bo Liu ◽  
Bao Ling Xie ◽  
Qi Chen
Keyword(s):  
Computer Aided Design ◽  
Point Cloud ◽  
High Speed ◽  
Point Clouds ◽  
Mesh Segmentation ◽  
Registration Method ◽  
Icp Algorithm ◽  
Computer Aided ◽  
Aided Design ◽  
Region Feature

This paper proposes an automatic point clouds registration method based on High-Speed Mesh Segmentation. The proposed method works fast for doing an initial registration and extracting point clouds region feature. First, the features of the point region are used for matching point cloud regions. Second, matched regions sets are classified for calculating transform matrix of initial registration. Based on the initial registration result the Iterative Closest Point (ICP) algorithm which had been used for accuracy registration to composite point cloud pairs will be applied. The proposed registration approach is able to do automatic registration without any assumptions about their initial positions, and avoid the problems of traditional ICP in bad initial estimate. The proposed method plus with ICP algorithm provides an efficient 3D model for computer-aided engineering and computer-aided design.

scholarly journals Rail wear inspection based on computer-aided design model and point cloud data

2018 ◽  
Vol 10 (12) ◽  
pp. 168781401881678 ◽  
Author(s):  
Peng Chen ◽  
Yong Hu ◽  
Wen-Tao Li ◽  
Pei-Jun Wang
Keyword(s):  
Computer Aided Design ◽  
Point Cloud ◽  
Structured Light ◽  
Three Dimensional ◽  
Point Clouds ◽  
Design Model ◽  
Inspection System ◽  
Rail Wear ◽  
Computer Aided ◽  
Aided Design

Railway transportation demands more efficient and accurate rail wear inspection systems to ensure the train operation safety. To obtain continuous three-dimensional data, a structured light rail wear inspection system is developed in this article, and the data processing method for aligning the point cloud from structured light scanning to the nominal computer-aided design model of the rail is investigated. For further data registration, the point cloud of the computer-aided design model is generated and the normal vectors of these points are calculated. In the coarse registration, conformal geometric algebra is applied to align the segmented point clouds by intuitive geometric calculations to those from the computer-aided design model. In the fine registration, the accurate alignment of the point clouds is implemented by the iterative closest point algorithm. The vertical and lateral wear amounts are obtained on the cross section by slicing the aligned three-dimensional point clouds data. Finally, the proposed system and method are validated by comparing the vertical wear amounts with the two-dimensional laser scanning and contact measurement results.

Supersolidus liquid phase sintering of high speed steels: Part 3: computer aided design of sinterable alloys

1999 ◽  
Vol 42 (2) ◽  
pp. 131-146 ◽  
Author(s):  
C.S. Wright ◽  
M. Youseffi ◽  
A.S. Wronski ◽  
I. Ansara ◽  
M. Durand-Charre ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Computer Aided Design ◽  
High Speed ◽  
Liquid Phase Sintering ◽  
Computer Aided ◽  
Aided Design

scholarly journals Development of Semi-Interface Motorcycle Simulator (SiMS)

2018 ◽  
Vol 7 (4.27) ◽  
pp. 148
Author(s):  
Wan Muhammad Syahmi Wan Fauzi ◽  
Abdul Rahman Omar ◽  
Helmi Rashid
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Real World ◽  
Computer Aided Design ◽  
High Speed ◽  
Controlled Environment ◽  
Element Analysis ◽  
Computer Aided ◽  
Niche Area ◽  
Aided Design

Recently, studies concerning motorcycle have been an overwhelming area of research interest. As an alternative to the real world assessment, researchers have utilized motorcycle simulator as a workstation to conduct studies in the motorcycle niche area. This paper deal with the development of a new motorcycle simulator named Semi-Interface Motorcycle Simulator (SiMS). Combination of Computer Aided Design (CAD) and Finite Element Analysis (FEA) software made it possible to design and simulates the motorcycle simulator’s conceptual design before being fabricated. The SiMS setup not only provides a near-to-real and immerse motorcycle riding experience on a super sport motorcycle model, but it also allows safer high speed motorcycle simulations to be conducted in a controlled environment that is portable and ergonomically easier to transport to various venues.  

Computer Aided Design of a New Universal Clamping Mechanism

2014 ◽  
Vol 597 ◽  
pp. 417-420
Author(s):  
Jeremy Zheng Li
Keyword(s):  
3D Modeling ◽  
Computer Aided Design ◽  
High Speed ◽  
Manufacturing Industry ◽  
Cost Effective ◽  
Geometrical Shape ◽  
Automated Production ◽  
Computer Aided ◽  
New Type ◽  
Aided Design

The tooling and fixture play important roles in manufacturing and production. It affects both product quality and quantity. Better tooling and fixture can also promote cost-effective manufacturing process. This paper introduces a new type of universal clamping mechanism based on computer-aided 3D modeling, engineering structural analysis, and prototype testing. It can be applied to easily and reliably clamp different geometrical shape of work pieces per user requirements. This new clamping mechanism, with less moving components, can assist manufacturing industry for high speed production, easy part handling, precise clamping, and lower tooling cost. Keywords: Computer-aided design, automated production, 3D modeling, cost-effective, high speed manufacturing, engineering analysis, optimization, efficient;

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