scholarly journals CREATION OF A THREE-DIMENSIONAL MODEL OF ARCHITECTURAL STRUCTURE IN AGISOFT PHOTOSCAN

2020 ◽  
Vol 6 (1) ◽  
pp. 161-166
Author(s):  
Egor V. Kazharin
Keyword(s):  
Laser Scanning ◽  
Three Dimensional ◽  
Digital Camera ◽  
Object Model ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Architectural Structures ◽  
Three Dimensional Models ◽  
Time Required ◽  
The Cost

All architectural structures are a subject to periodic surveys and use of photogrammetric methods for these purposes will ensure a reduction in time required to complete the work, required accuracy, as well as ability to fulfill the required measurements on a pair of images in office conditions without additional field visits, which will significantly reduce the cost of implementation of this type of work. In order to solve the problems of building three-dimensional models of such objects, a ground-based photography is used more often. This method of photographing, in comparison with other methods, such as ground-based laser scanning, facade shooting with the help of electronic total stations, seems more affordable, since it does not require the use of expensive equipment, but it makes it possible to build an object model with the specified accuracy. For ground photography it is enough to have a calibrated digital camera, computer and software. The purpose of this work is to study the method of constructing a three-dimensional model of an architectural structure based on photogrammetric processing of images, as well as optimizing the result and demonstrating the operability of the method.

Application of Constructing Three-Dimensional Model Using Laser Scanning Technology

2011 ◽  
Vol 94-96 ◽  
pp. 86-89
Author(s):  
Wen Long Liu ◽  
Xiao Ping Zhao ◽  
Bao Guo Xu
Keyword(s):  
Point Cloud ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Range Image ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Building Models ◽  
Three Dimensional Models ◽  
Segmentation Point

Starting from the principle of three-dimensional laser scanner and after analyzing the positioning error of point cloud, in this paper the following key problems confronted in data processing are researched ,the problems are range image segmentation, point cloud registration, point cloud filtering, absolute positioning and stitching data, modeling in AutoCAD or 3Dmax. Then, examples were introduced in constructing three-dimensional model using laser scanning technology. The results showed that the use of this technology can provide high-precision building models, which is important in constructing three-dimensional models and very helpful of digital cities.

scholarly journals ANALYSIS OF THE THREE-DIMENSIONAL VECTOR FAÇADE MODEL CREATED FROM PHOTOGRAMMETRIC DATA

2017 ◽  
Vol IV-5/W1 ◽  
pp. 17-21
Author(s):  
I. S. Kamnev ◽  
V. A. Seredovich
Keyword(s):  
Laser Scanning ◽  
Accuracy Assessment ◽  
Three Dimensional ◽  
Digital Camera ◽  
Point Clouds ◽  
Vector Model ◽  
Dimensional Vector ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Surface Areas

The results of the accuracy assessment analysis for creation of a three-dimensional vector model of building façade are described. In the framework of the analysis, analytical comparison of three-dimensional vector façade models created by photogrammetric and terrestrial laser scanning data has been done. The three-dimensional model built from TLS point clouds was taken as the reference one. In the course of the experiment, the three-dimensional model to be analyzed was superimposed on the reference one, the coordinates were measured and deviations between the same model points were determined. The accuracy estimation of the three-dimensional model obtained by using non-metric digital camera images was carried out. Identified façade surface areas with the maximum deviations were revealed.

scholarly journals Creation of virtual 3D models of the existing architectonic structures using the web resources

Spatium ◽  
2016 ◽  
pp. 30-36 ◽  
Author(s):  
Petar Pejic ◽  
Sonja Krasic
Keyword(s):  
Laser Scanning ◽  
Three Dimensional ◽  
3D Models ◽  
Three Dimensional Model ◽  
Web Resources ◽  
Existing Structures ◽  
Software Packages ◽  
Physical Presence ◽  
The Creation ◽  
Three Dimensional Models

Digital three-dimensional models of the existing architectonic structures are created for the purpose of digitalization of the archive documents, presentation of buildings or an urban entity or for conducting various analyses and tests. Traditional methods for the creation of 3D models of the existing buildings assume manual measuring of their dimensions, using the photogrammetry method or laser scanning. Such approaches require considerable time spent in data acquisition or application of specific instruments and equipment. The goal of this paper is presentation of the procedure for the creation of 3D models of the existing structures using the globally available web resources and free software packages on standard PCs. This shortens the time of the production of a digital three-dimensional model of the structure considerably and excludes the physical presence at the location. In addition, precision of this method was tested and compared with the results acquired in a previous research.

scholarly journals Methods building and printing 3D models historical architectural objects

2020 ◽  
Vol 75 ◽  
pp. 04016 ◽  
Author(s):  
Ihor Hevko ◽  
Olha Potapchuk ◽  
Iryna Lutsyk ◽  
Viktorya Yavorska ◽  
Viktoriia Tkachuk
Keyword(s):  
3D Printing ◽  
Complex Systems ◽  
Three Dimensional ◽  
3D Models ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Specialized Software ◽  
Bulk Data ◽  
Three Dimensional Models ◽  
Accuracy Speed

The authors present methods building and printing three-dimensional models for graphical reconstruction of historical architectural objects. Procedure sequence of the methods is exemplified through building the model of the Parochial Cathedral of St. Mary of the Perpetual Assistance of the 1950s. After analyzing and assessing the most popular specialized software means, the 3DS Max environment is chosen to build a three-dimensional model. Suggested software tools enable increased accuracy, speed and granularity of fixation of complex systems and expanded databases, providing efficient instruments to deal with bulk data and being relevant to new IT achievements. Sequence and content of operations for analytical and modeling cycles are substantiated. The cathedral model is built on the basis of archive photographs and drafts. The authors describe methods and the algorithm of procedures, principles of architectural and spacious modeling to recreate the architectural object. The three-dimensional model is built by applying a stereogram miniature of the destroyed Cathedral. Reconstruction of spacious configuration of the objects is based on parallax assessment of images. Stages of project implementation are determined. There are described methods of implementing modeling by 3DS Max tools and preparing the model for 3D printing in Cura.

Design of Above-Knee Prosthesis: A Finite Element Stress Analysis

2015 ◽  
Vol 1125 ◽  
pp. 432-436 ◽  
Author(s):  
Sandro Mihradi ◽  
Calvindoro Zeus Abdiwijaya ◽  
Tatacipta Dirgantara ◽  
Andi Isra Mahyuddin
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Knee Prosthesis ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Strength Criteria ◽  
Finite Element Stress Analysis ◽  
Three Dimensional Models ◽  
Four Bar Linkage

In the present research, three-dimensional models of above-knee prosthesis, consist of socket, four-bar linkage knee, pylon and foot, are developed. These models have to fulfill criteria such as stability, ability to withstand up to 90 kg of bodyweight, ability to flex up to 130 degree, easy for maintenance, simple manufacturing process, affordable and yet reliable. As the first step of development, these models were evaluated using finite element method software to determine whether or not the design has fulfilled strength criteria. The results show that the last iteration of the three dimensional model of the knee prosthesis has satisfied the criteria.

Optimization Design of Hydraulic Cylinder Based on ANSYS

2012 ◽  
Vol 562-564 ◽  
pp. 709-712
Author(s):  
Yi Lun Han ◽  
Li Jun Huang ◽  
Xue Lei Wen
Keyword(s):  
Optimization Design ◽  
Three Dimensional ◽  
Basic Structure ◽  
Hydraulic Cylinder ◽  
Stress And Strain ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
The Cost

The basic structure of the piston hydraulic cylinder was introduced. A three-dimensional model was carried out for the hydraulic cylinder by using Pro/E soft，the finite element analysis to the largest hydraulic condition while hydraulic cylinder working by using ANSYS soft，and the distribution of the stress and strain of hydraulic cylinder was derived from it. It optimized the structure of hydraulic cylinder effectively and the cost was saved.

Study on the Application of Computer Three-Dimensional Model's Simulation Functions

2013 ◽  
Vol 443 ◽  
pp. 27-30
Author(s):  
Qin Gu
Keyword(s):  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Simulation Functions ◽  
Dimensional Models ◽  
Three Dimensional Models

In this paper, the simulation functions of computer three-dimensional model as well as the advantages in the simulated application are briefly introduced, and also the application of the three-dimensional models simulation functions to the different industries is discussed in details.

scholarly journals INTEGRATION OF GEODATA IN DOCUMENTING CASTLE RUINS

2016 ◽  
Vol XLI-B3 ◽  
pp. 345-349
Author(s):  
P. Delis ◽  
M. Wojtkowska ◽  
P. Nerc ◽  
I. Ewiak ◽  
A. Lada
Keyword(s):  
Laser Scanning ◽  
Three Dimensional ◽  
Digital Camera ◽  
Terrestrial Laser Scanning ◽  
Point Clouds ◽  
3D Models ◽  
Digital Imagery ◽  
Historical Structures ◽  
Three Dimensional Models ◽  
Different Sources

Textured three dimensional models are currently the one of the standard methods of representing the results of photogrammetric works. A realistic 3D model combines the geometrical relations between the structure’s elements with realistic textures of each of its elements. Data used to create 3D models of structures can be derived from many different sources. The most commonly used tool for documentation purposes, is a digital camera and nowadays terrestrial laser scanning (TLS). Integration of data acquired from different sources allows modelling and visualization of 3D models historical structures. Additional aspect of data integration is possibility of complementing of missing points for example in point clouds. The paper shows the possibility of integrating data from terrestrial laser scanning with digital imagery and an analysis of the accuracy of the presented methods. The paper describes results obtained from raw data consisting of a point cloud measured using terrestrial laser scanning acquired from a Leica ScanStation2 and digital imagery taken using a Kodak DCS Pro 14N camera. The studied structure is the ruins of the Ilza castle in Poland.

THREE DIMENSIONAL MODELING OF ARCHAEOLOGICAL ARTIFACT USING PHOTOMODELER SCANNER

2015 ◽  
Vol 75 (10) ◽  
Author(s):  
Ainun Nadzirah Abdul Raof ◽  
Halim Setan ◽  
Abert Chong ◽  
Zulkepli Majid
Keyword(s):  
Laser Scanning ◽  
Three Dimensional ◽  
Data Recording ◽  
Dimensional Model ◽  
Stereo Images ◽  
Three Dimensional Model ◽  
Scanning Method ◽  
Close Range Photogrammetry ◽  
Archaeological Artifact ◽  
Close Range

This article describes the work of archaeological artifact data recording using close range photogrammetry method. A calibrated stereo camera was used to take the stereo images of the artifacts. Photomodeler Scanner software was used to process the stereo images to produce a three-dimensional model of the artifact. For verification purposes, VIVID 910 laser scanner was used to generate three-dimensional model of the same artifact. The study found that close range photogrammetry method is easy to use, with fast data recording, fast data processing and it is a method which is cheaper than the laser scanning method.

Modeling Design and Rapid Prototyping Manufacture of Cream Bottle Based on Handheld Laser Scanning

2015 ◽  
Vol 752-753 ◽  
pp. 1301-1306 ◽  
Author(s):  
Xing Xing Wang ◽  
Jin Dong Wei ◽  
Yi Pei ◽  
Yu Zhu ◽  
Hong Jun Ni
Keyword(s):  
Rapid Prototyping ◽  
Reverse Engineering ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Laser Scanner ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Engineering Technology ◽  
Cloud Data ◽  
Improve Efficiency

Reverse Engineering (RE) and Rapid Prototyping (RP) were used for manufacturing cream bottle. Points cloud data of cream bottle was accessed by handheld laser scanner firstly. Then, points cloud data was handed by Imageware software and the three-dimensional model was formed by Solidworks software. Finally, the entity model was manufacturing by RP machine. In the research, rapid prototyping was combined with reverse engineering technology, manufacturing cycle was shorten, production requirements, improve efficiency and other advantages were met.

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