Complex Object Modeling Method Based on 3ds MAX Platform

2012 ◽  
Vol 184-185 ◽  
pp. 724-727 ◽  
Author(s):  
Ji Hong Yu ◽  
Xiao Ming Bai ◽  
Jun Wei Lv
Keyword(s):  
Virtual Reality ◽  
Object Recognition ◽  
Modeling Method ◽  
Complex Object ◽  
Engineering Analysis ◽  
Object Modeling ◽  
Complicated Structure ◽  
Ship Model ◽  
Anomalous Formation

Ship modeling is more complicated than any other artificial architecture according to its complicated structure, anomalous formation, all types of surface. Based on analysis on the hull, we studied the skills and methods with three views and lofting technique on the platform of 3ds MAX. Firstly, collect detail parameters and views from Internet, then preprocess orthographic views before establishing reference hull and fragmented curves by lofting technique. At last a complete ship model by combing hull and weapons is established. The simulation result is lifelike; it can provide an attractive experiment environment for Virtual Reality, Object Recognition, Engineering Analysis, etc.

A structured object modeling method SOMM and its environment SOME

1996 ◽  
Vol 27 (11) ◽  
pp. 1-18 ◽  
Author(s):  
Minoru Harada ◽  
Takafumi Sawada ◽  
Terutada Fujisawa
Keyword(s):  
Modeling Method ◽  
Object Modeling

Modeling and Virtual Reality Realization of Coupled Processes in Integrated Open-Die Forging Plant

2009 ◽  
Author(s):  
Changya Yan ◽  
Feng Gao ◽  
Jie Chen
Keyword(s):  
Virtual Reality ◽  
Process Model ◽  
Manufacturing System ◽  
Modeling Method ◽  
Integrated System ◽  
Coupled Processes ◽  
Kinematic Modeling ◽  
Virtual Plant ◽  
Die Forging ◽  
Open Die Forging

A virtual plant, built in a computer by using computer graphic (CG) and Virtual Reality (VR), can model the precise and whole structure of an integrated manufacturing system and simulate its physical and logical behavior in operation. This paper aims to reveal the advanced modeling and VR realization methods in developing a virtual forging plant for automatic and programmed open-die forging processes. Two sub-models, component model and process model, compose the overall modeling architecture of a virtual integrated open-die forging plant. The coordinated motion simulation of the integrated system is realized through a kinematic modeling method. A compound stiffness modeling method is then developed to simulate the mechanical behavior in operation. The process simulation of the virtual plant is conducted on the basis of the above two modeling methods. A practical application example of virtual plant for integrated open-die forging process is presented towards the end.

Positional Recognition and Attitude Control for 3-D Biomicromanipulation in Microscopy

2002 ◽  
Vol 14 (3) ◽  
pp. 238-244 ◽  
Author(s):  
Akiko Kawaji ◽  
◽  
Fumihito Arai ◽  
Toshio Fukuda ◽  
Keyword(s):  
Virtual Reality ◽  
Optical Microscopy ◽  
Attitude Control ◽  
Visual Information ◽  
Modeling Method ◽  
Fabrication Process ◽  
Microscopic Object ◽  
Microscope Images ◽  
Operation Environment ◽  
Positional Control

The biomicromanipulation so important to biology and bioengineering remains difficult because object used are very small, kept in liquids, or observed by optical microscopy. We are developing a micromanipulation system for anatomical operation of microobjects such as embryos, cells, and microbes. Microscope images are 2-D, so it is difficult to manipulate targets in 3-D space. To improve manipulation work, we proposed a 3-D biomicromanipulation system combined with virtual reality (VR) space. Here we propose the 3-D modeling method of the object to present 3-D visual information to the operator and improve the operation environment. In this system, we still have difficulty changing the orientation of the microscopic object by manipulating a mechanical manipulator. The bioaligner we propose is a microdevice for the positional control of an object. We developed a 2-D bioaligner by microfabrication. Here we show its fabrication process and basic rotating experiment with chlorella cells.

THE METHOD OF OBJECT MODELING IN THE DEVELOPMENT OF PATENTABLE DESIGNS OF TRACTION DRIVE MECHANISMS

2021 ◽  
Vol 2021 (3-4) ◽  
pp. 4-13
Author(s):  
Vladimir Vorob'ev ◽  
Aleksandr Pugachev ◽  
Stepan Kopylov ◽  
Evgeniy Nikolaev
Keyword(s):  
Electric Motor ◽  
Analytical Methods ◽  
Modeling Method ◽  
Rolling Stock ◽  
Object Model ◽  
Object Modeling ◽  
Typical Structure ◽  
Traction Drive ◽  
Maintenance And Repair ◽  
Technical Systems

Work objective is to develop a patentable design of locomotive traction drive mechanisms using the example of a suspension unit. Research methods: object modeling method, analytical methods for calculating dynamics of rolling stock. Research results and novelty: the design of the railway electric motor suspension unit, which will reduce costs in the course of maintenance and repair of a locomotive with a solid gear by increasing the reliability of the suspension unit parts, eliminating their wear, has been developed; a compensation coupling device has been devised. We will synthesize the object model of a technical system based on the identification of its typical structure by classifying technical systems. Conclusion: the application of the object modeling method together with the object model allows avoiding errors in the development of new designs of technical objects based on existing comparables and eliminates defects of the selected prototype. The use of the object modeling method makes it possible to synthesize patentable designs of the locomotive underframe mechanisms.

Object Modeling Using Gaussian Mixture Model for Infrared Image and its Application to Vehicle Detection

2006 ◽  
Vol 18 (6) ◽  
pp. 738-743 ◽  
Author(s):  
Makito Seki ◽  
◽  
Haruhisa Okuda ◽  
Manabu Hashimoto ◽  
Nami Hirata
Keyword(s):  
Gaussian Mixture Model ◽  
Mixture Model ◽  
Infrared Image ◽  
Vehicle Detection ◽  
Gaussian Mixture ◽  
Modeling Method ◽  
Object Modeling ◽  
Visible Image ◽  
Low Contrast ◽  
Gradient Orientation

In this paper, we propose a new object modeling method for infrared (IR) image. It is based on the modeling method using Gaussian Mixture Model (GMM) that has been originally proposed for general visible image. The original method is one of effective object modeling algorithms that can describe the topological structures of the internal patterns of object. This approach can also eliminate the influences due to small differences between patterns. On the other hand, an IR image is often used instead of visible image in actual applications such as outdoor surveillance. IR images make it easy to extract foreground object regions from background scenes, but their low-contrast makes object modeling difficult. We therefore propose a modeling method using Orientation-Code for IR image. Orientation-Code of each pixel has information about the maximum-gradient orientation of image, not intensity information. Gradient orientation information does not depend on contrast and describes internal pattern structures of objects even in unclear IR images. We also applied proposed method to vehicle detection for outdoor scenes, where it extracts multiple foreground regions as vehicle candidates using background subtraction for IR image, and they are described as models by our method. Models are finally compared with standard vehicle view models pre-memorized to determine which candidate is true vehicle or not. Evaluation tests with actual IR video sequences have proved that our proposed algorithm detects objects robustly.

scholarly journals Ontology based complex object recognition

2008 ◽  
Vol 26 (1) ◽  
pp. 102-113 ◽  
Author(s):  
Nicolas Eric Maillot ◽  
Monique Thonnat
Keyword(s):  
Object Recognition ◽  
Complex Object

Virtual City Ground Object Modeling and Visualization Based on OpenGL

2012 ◽  
Vol 263-266 ◽  
pp. 1910-1915 ◽  
Author(s):  
Xu Dong Xu ◽  
Jing Wang ◽  
Guan Feng Lv
Keyword(s):  
Coordinate Transformation ◽  
Modeling Method ◽  
Object Modeling ◽  
Geometry Modeling ◽  
Modeling Methods ◽  
Modeling Process ◽  
Ground Object ◽  
Street Lamp ◽  
Virtual City ◽  
Visualization Technology

A kind of modeling method of regular ground object in virtual city was proposed through splicing certain spatial simple geometries based on VC++ and OpenGL, which combining the ground objects’ characteristics with modeling realistic demand. This method firstly generated some basic shapes (cylinder, cone or sphere) which were the constituent parts of regular ground object, by using simplified 3D basic geometry modeling method of OpenGL. Then joined these basic shapes together by doing coordinate transformation to construct the regular ground object. The case of modeling street lamp was taken as an example to introduce the ground object’s modeling methods and visualization technology. The modeling process just need calculating a small number of coordinates, and the amount of data is also very low. Experimental results show that generated models looks very real.

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