Geometric Feature Recognition by Object Decomposition

1989 ◽  
Author(s):  
C. Karra ◽  
T. A. Phelps
Keyword(s):  
Feature Recognition ◽  
Geometric Feature ◽  
Design Tools ◽  
Solid Object ◽  
Solid Modelling ◽  
New Approach ◽  
Design Engineers ◽  
Manufacturing Information ◽  
Computer Based ◽  
Analysis Design

Abstract Design engineers have traditionally have had inadequate manufacturing information. One method of getting that information to them is through its inclusion in computer-based design tools such as geometric solid modelling programs. Analysis of geometry requires methods such as feature recognition. A new approach to feature recognition has been developed which recognizes features by taking apart the original solid object into prismatic primitives. This approach already covers a very large portion of what is currently manufactured. The expected applications of this approach include automatic manufacturability analysis, design for assembly, process planning, etc.

The Geometrical Feature Recognition Method of Part Drawing

2011 ◽  
Vol 415-417 ◽  
pp. 523-526
Author(s):  
Yan Dong ◽  
Mei Li
Keyword(s):  
Feature Recognition ◽  
Graph Matching ◽  
Geometric Feature ◽  
Recognition Method ◽  
Recognition Mechanism ◽  
Chemical Database ◽  
Geometry Feature ◽  
Constraint Structure ◽  
Geometric Elements ◽  
Fine Tune

This paper put forward a geometry feature recognition method of part drawing based on graph matching. Describe the constraints structure of geometric feature in geometric elements and those constraint relationships. Match sub-graph in contour closure graphics and those combination. Using linear symbol notation of chemical compounds in chemical database for reference, encode to constraint structure of geometry graphics, establish recognition mechanism of geometric characteristics by structure codes. Taking the fine-tune screw and fork parts for example, this method has been proved to be effective.

scholarly journals Evaluation and Validation of a Semiautomatic Image Analysis Method: Quantification of Nares Cell Proliferation of Rhinella arenarum (Anura) Detected with the Avidin-Biotin Complex/Peroxidase, DAB

2015 ◽  
Vol 2015 ◽  
pp. 1-10
Author(s):  
Javier Eduardo Diaz Zamboni ◽  
Daniela Osella ◽  
Enrique Valentín Paravani ◽  
Víctor Hugo Casco
Keyword(s):  
Gold Standard ◽  
Visual Analysis ◽  
Methodological Approach ◽  
Image Features ◽  
Analysis Method ◽  
New Approach ◽  
Image Characteristics ◽  
Microscopy Image ◽  
Computer Based ◽  
Current Report

The current report presents the development and application of a novel methodological approach for computer-based methods of processing and analysis of proliferative tissues labeled by ABC-peroxidase method using 3, 3′-diaminobenzidine (DAB) as chromogen. This semiautomatic method is proposed to replace the classical manual approach, widely accepted as gold standard. Our method is based on a visual analysis of the microscopy image features from which a computational model is built to generate synthetic images which are used to evaluate and validate the methods of image processing and analysis. The evaluation allows knowing whether the computational methods applied are affected by the change of the image characteristics. Validation allows determining the method’s reliability and analyzing the concordance between the proposed method and a gold standard one. Additional strongness of this new approach is that it may be a framework adaptable to other studies made on any kind of microscopy.

Visualization Service Model for Job Scheduling

2011 ◽  
Vol 282-283 ◽  
pp. 683-686
Author(s):  
Yong Ling Yu ◽  
Tao Guan ◽  
Jin Fa Shi
Keyword(s):  
Enterprise Resource Planning ◽  
Optimization Algorithm ◽  
Optimization Model ◽  
Job Scheduling ◽  
Resource Planning ◽  
Information Services ◽  
Production Data ◽  
Service Model ◽  
New Approach ◽  
Manufacturing Information

With the expansion of manufacturing information services, visualization service in enterprise resource planning has recently become a hot topic. In this paper, we propose a new approach for job scheduling visualization service and a model of visualization service constructed from the share of production data and job scheduling information. Moreover, the optimization model of visualization service is given. At last, we discuss the optimization algorithm for this model.

Midsurface Abstraction From 3D Solid Models for Engineering Analysis

1996 ◽  
Author(s):  
Mohsen Rezayat
Keyword(s):  
Feature Recognition ◽  
Analysis Model ◽  
Thin Sections ◽  
New Approach ◽  
Solid Models ◽  
Product And Process ◽  
Plastic Parts ◽  
3D Solid ◽  
User Friendly ◽  
Analysis Models

Abstract An integral part of implementing parallel product and process designs is simulation through numerical analysis. This simulation-driven design requires discretization of the 3D part in an appropriate manner. If the part is thin or has thin sections (e.g., plastic parts), then an analysis model with reduced dimensionality may be more accurate and economical than a standard 3D model. In addition, substantial simplification of some details in the design geometry may be beneficial and desirable in the analysis model. Unfortunately, the majority of CAD systems do not provide the means for abstraction of appropriate analysis models. In this paper we present a new approach, based on midsurface abstraction, which holds significant promise in simplifying simulation-driven design. The method is user-friendly because very little interaction is required to guide the software in its automatic creation of the desired analysis model. It is also robust because it handles typical parts with complex and interacting features. Application of the method for feature recognition and abstraction is also briefly discussed.

Assessing the Accuracy of TWIGS and STEMS85 Volume Predictions: A New Approach

1989 ◽  
Vol 6 (3) ◽  
pp. 109-114 ◽  
Author(s):  
Gary J. Brand ◽  
Margaret R. Holdaway
Keyword(s):  
Prediction Intervals ◽  
Projection System ◽  
New Approach ◽  
Northern Hardwood ◽  
Lake States ◽  
Computer Based ◽  
Growth Projection ◽  
Using Data

Abstract Computer based growth projection systems can help foresters evaluate the effect of management prescriptions. However, using projection systems wisely requires information about how accurate they are. Both parts of accuracy, bias and precision, are estimated for volume predictions from a Lake States projection system using data from 822 remeasured plots. Volume tends to be underpredicted for four locations in the northern part of the Lake States but overpredicted for one location in Lower Michigan. The bias is large for dense stands and for northern hardwood and lowland hardwood stands in Lower Michigan. Forests are highly variable, however, and the precision of a projection system must be estimated as well as its bias. Prediction intervals are computed that help estimate the likely range for a given prediction. The interval that has a 90% probability of containing the true volume can be quite large. North. J. Appl. For. 6:109-114, September 1989.

scholarly journals Specifying computer-based counseling systems in health care: A new approach to user-interface and interaction design

2009 ◽  
Vol 42 (2) ◽  
pp. 347-355 ◽  
Author(s):  
Dominikus Herzberg ◽  
Nicola Marsden ◽  
Peter Kübler ◽  
Corinna Leonhardt ◽  
Sabine Thomanek ◽  
...  
Keyword(s):  
Health Care ◽  
User Interface ◽  
Interaction Design ◽  
New Approach ◽  
Computer Based
Sign in / Sign up

Export Citation Format

Share Document