scholarly journals HARDWARE-SOFTWARE PLATFORM OF INDUSTRIAL MONITORING

2019 ◽  
pp. 20-27
Author(s):  
M. A. Bondarenko ◽  
A. V. Bondarenko ◽  
M. Z. Benenson
Keyword(s):  
3D Models ◽  
Digital Cameras ◽  
Software Platform ◽  
Complex Objects ◽  
Destructive Testing ◽  
Metro Station ◽  
Industrial Facilities ◽  
Monitoring Task ◽  
Industrial Monitoring ◽  
Four Levels

The paper describes basic requirements for a modern supervisory control and data acquisition system (SCADA), in particular  for monitoring systems of complex industrial facilities. It is known that many robotic processes require non‑destructive testing  with pattern recognition elements within a common monitoring system. On the widely used GENESIS64 SCADA example, it is considered a solution based on the hardware and software platform RT -XDC of RASTER TECHNOLOGY digital cameras,  allowing to integrate into the system of this class any set of complex sensors such as digital cameras that support standard  interfaces, built -in processing and data analysis. In addition, it is proposed the hierarchical model of complex objects monitoring and the universal way of its representation on the Moscow metro station network example, which includes four levels: the model map level, the model level, the model objects level and the level of their attributes. The considered data structure, which have to operate in solving the common monitoring task, make a choice in favor of object -oriented databases application like IPR, used in Delta Design CAD. The results were obtained during the development of experimental software that allows visualizing 3D models and displaying information about the selected object in the form of any predetermined structures.

scholarly journals Experience of Documentation for the Accessibility of Widespread Cultural Heritage

Heritage ◽  
2019 ◽  
Vol 2 (1) ◽  
pp. 1032-1044 ◽  
Author(s):  
Sandro Parrinello ◽  
Anna Dell’Amico
Keyword(s):  
Cultural Heritage ◽  
3D Models ◽  
Complex Objects ◽  
Wide Audience ◽  
Intangible Heritage ◽  
Representation Systems ◽  
Cultural Systems ◽  
Physical Limit ◽  
Starting Point ◽  
The Will

The will to preserve and enhance cultural heritage imposes reflections on databases as containers of information for the accessibility of dispersed heritage. The aim of the research is to validate methodological approaches in order to create 3D models and information systems. These tools improve accessibility to the artifact, according to different interconnection channels, in order to overcome the physical limit imposed by location. Tangible and intangible heritage take the form of a metadata network throughout a critical analysis and elaboration of data. These files create a complex database containing 3D models rich in information that describe cultural systems. The digital survey is the starting point for the development of languages, signs and symbols. It transfers complex objects into virtual systems, developing a multidimensional dialogue capable of integrating actions and meanings. The interactivity of complex databases facilitates the accessibility and disclosure of data to a wide audience. It requires the establishment of representation systems based on the development of virtual environments.

scholarly journals Internet Photogrammetry for Inspection of Seaports

2017 ◽  
Vol 24 (s1) ◽  
pp. 174-181 ◽  
Author(s):  
Zygmunt Paszotta ◽  
Malgorzata Szumilo ◽  
Jakub Szulwic
Keyword(s):  
Fundamental Matrix ◽  
Laser Scanning ◽  
3D Models ◽  
Digital Cameras ◽  
Correct Orientation ◽  
The Matrix ◽  
Transport Safety ◽  
Left And Right ◽  
Value Decomposition ◽  
The Relationship

Abstract This paper intends to point out the possibility of using Internet photogrammetry to construct 3D models from the images obtained by means of UAVs (Unmanned Aerial Vehicles). The solutions may be useful for the inspection of ports as to the content of cargo, transport safety or the assessment of the technical infrastructure of port and quays. The solution can be a complement to measurements made by using laser scanning and traditional surveying methods. In this paper the authors recommend a solution useful for creating 3D models from images acquired by the UAV using non-metric images from digital cameras. The developed algorithms, created and presented software allows to generate 3D models through the Internet in two modes: anaglyph and display in shutter systems. The problem of 3D image generation in photogrammetry is solved by using epipolar images. The appropriate method was presented by Kreiling in 1976. However, it applies to photogrammetric images for which the internal orientation is known. In the case of digital images obtained with non-metric cameras it is required to use another solution based on the fundamental matrix concept, introduced by Luong in 1992. In order to determine the matrix which defines the relationship between left and right digital image it is required to have at least eight homologous points. To determine the solution it is necessary to use the SVD (singular value decomposition). By using the fundamental matrix the epipolar lines are determined, which makes the correct orientation of images making stereo pairs, possible. The appropriate mathematical bases and illustrations are included in the publication.

scholarly journals VERIFICATION OF POTENCY OF AERIAL DIGITAL OBLIQUE CAMERAS FOR AERIAL PHOTOGRAMMETRY IN JAPAN

2016 ◽  
Vol XLI-B1 ◽  
pp. 63-68 ◽  
Author(s):  
Ryuji Nakada ◽  
Masanori Takigawa ◽  
Tomowo Ohga ◽  
Noritsuna Fujii
Keyword(s):  
3D Model ◽  
3D Models ◽  
Aerial Photographs ◽  
Digital Cameras ◽  
Digital Mapping ◽  
Aerial Photogrammetry ◽  
Public Survey ◽  
Survey Accuracy ◽  
Left And Right ◽  
Simultaneous Adjustment

Digital oblique aerial camera (hereinafter called “oblique cameras”) is an assembly of medium format digital cameras capable of shooting digital aerial photographs in five directions i.e. nadir view and oblique views (forward and backward, left and right views) simultaneously and it is used for shooting digital aerial photographs efficiently for generating 3D models in a wide area. <br><br> For aerial photogrammetry of public survey in Japan, it is required to use large format cameras, like DMC and UltraCam series, to ensure aerial photogrammetric accuracy. <br><br> Although oblique cameras are intended to generate 3D models, digital aerial photographs in 5 directions taken with them should not be limited to 3D model production but they may also be allowed for digital mapping and photomaps of required public survey accuracy in Japan. <br><br> In order to verify the potency of using oblique cameras for aerial photogrammetry (simultaneous adjustment, digital mapping and photomaps), (1) a viewer was developed to interpret digital aerial photographs taken with oblique cameras, (2) digital aerial photographs were shot with an oblique camera owned by us, a Penta DigiCAM of IGI mbH, and (3) accuracy of 3D measurements was verified.

scholarly journals Metric contrast of thermal 3D models of large industrial facilities obtained by means of low-cost infrared sensors in UAV platforms

2021 ◽  
pp. 1-27
Author(s):  
Julio Manuel de Luis-Ruiz ◽  
Javier Sedano-Cibrián ◽  
Rubén Pérez-Álvarez ◽  
Raúl Pereda-García ◽  
Beatriz Malagón-Picón
Keyword(s):  
Low Cost ◽  
3D Models ◽  
Infrared Sensors ◽  
Industrial Facilities

ABOUT THE PROCEDURAL FRAMEWORK OF THE DIGITAL RADIOGRAPHY AT HAZARDOUS INDUSTRIAL FACILITIES

2019 ◽  
pp. 52-54
Author(s):  
K. A. Bagaev ◽  
N. N. Konovalov
Keyword(s):  
Digital Radiography ◽  
Modern Method ◽  
Necessary Condition ◽  
Imaging Plate ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Industrial Facilities ◽  
Testing Method ◽  
Radiation Testing ◽  
Non Destructive

Radiation testing is non-destructive testing method widely used to detect internal imperfections of technical devices, buildings and constructions at hazardous industrial facilities. Digital radiography is the modern method, which uses phosphor imaging plate as the detector of ionizing radiation. Creation of the relevant procedural framework is the necessary condition for the use of digital radiography at hazardous industrial facilities.

scholarly journals A Low-Cost and Ultralight Unmanned Aerial Vehicle-Borne Multicamera Imaging System Based on Smartphones

2022 ◽  
Vol 2022 ◽  
pp. 1-15
Author(s):  
Huachao Yang ◽  
Hefang Bian ◽  
Bin Li ◽  
Weihua Bi ◽  
Xingtao Zhao
Keyword(s):  
Imaging System ◽  
Low Cost ◽  
3D Models ◽  
Digital Cameras ◽  
Typical Application ◽  
Textural Quality ◽  
Small Device ◽  
Aerial Vehicle ◽  
Automatic Capture ◽  
Imaging Sensor

Newly developed oblique photogrammetry (OP) techniques based on unmanned aerial vehicles (UAVs) equipped with multicamera imaging systems are widely used in many fields. Smartphones cost less than the cameras commonly used in the existing UAV OP system, providing high-resolution images from a built-in imaging sensor. In this paper, we design and implement a novel low-cost and ultralight UAV OP system based on smartphones. Firstly, five digital cameras and their accessories detached from the smartphones are then fitted into a very small device to synchronously shoot images at five different perspective angles. An independent automatic capture control system is also developed to realize this function. The proposed smartphone-based multicamera imaging system is then mounted on a modified version of an existing lightweight UAV platform to form a UAV OP system. Three typical application examples are then considered to evaluate the performance of this system through practical experiments. Our results indicate that both horizontal and vertical location accuracy of the generated 3D models in all three test applications achieve centimeter-level accuracy with respect to different ground sampling distances (GSDs) of 1.2 cm, 2.3 cm, and 3.1 cm. The accuracy of the two types of vector maps derived from the corresponding 3D models also meet the requirements set by the surveying and mapping standards. The textural quality reflected by the 3D models and digital ortho maps (DOMs) are also distinguishable and clearly represent the actual color of different ground objects. Our experimental results confirm the quality and accuracy of our system. Although flight efficiency and the accuracy of our designed UAV OP system are lower than that of the commercial versions, it provides several unique features including very low-cost, ultralightweight, and significantly easier operation and maintenance.

scholarly journals Modelling and Visualization of Three Dimensional Objects Using Inexpensive Digital Cameras

2018 ◽  
Author(s):  
Ismail Elkhrachy
Keyword(s):  
Low Cost ◽  
Three Dimensional ◽  
Point Clouds ◽  
3D Models ◽  
Bundle Adjustment ◽  
Control Points ◽  
Digital Cameras ◽  
Three Dimensional Objects ◽  
Spatial Positioning ◽  
And Control

This paper analyses and evaluate the precision and the accuracy the capability of low-cost terrestrial photogrammetry by using many digital cameras to construct a 3D model of an object. To obtain the goal, a building façade has imaged by two inexpensive digital cameras such as Canon and Pentax camera. Bundle adjustment and image processing calculated by using Agisoft PhotScan software. Several factors will be included during this study, different cameras, and control points. Many photogrammetric point clouds will be generated. Their accuracy will be compared with some natural control points which collected by the laser total station of the same building. The cloud to cloud distance will be computed for different comparison 3D models to investigate different variables. The practical field experiment showed a spatial positioning reported by the investigated technique was between 2-4cm in the 3D coordinates of a façade. This accuracy is optimistic since the captured images were processed without any control points.

scholarly journals METHODS FOR MODELS PARAMETERS ESTIMATE TO SOLVE PROBLEMS ON 3D RECONSTRUCTION OF REAL OBJECTS COMPLEX MODELS

2016 ◽  
Vol 2016 (3) ◽  
pp. 233-242 ◽  
Author(s):  
Владислав Колякин ◽  
Vladislav Kolyakin ◽  
Владимир Аверченков ◽  
Vladimir Averchenkov ◽  
Максим Терехов ◽  
...  
Keyword(s):  
Computer Games ◽  
Three Dimensional ◽  
3D Models ◽  
Model Parameters ◽  
Complex Objects ◽  
Image Brightness ◽  
Real Objects ◽  
Complex Models ◽  
Three Dimensional Models ◽  
Definition Of

Virtual threedimensional (3 D) models of complex objects are used in many fields of science and engineering, such as architecture, industry, medicine, robotics. Besides, 3D models are used in geoinformation systems, computer games, virtual and supplemented reality and so on. Three dimensional models can be formed in dif-ferent ways, one of which consists in 3 D reconstruc-tion. One of the stages of the 3 D reconstruction of complex models of real objects is a definition of the mathematical models of geometric primitives emphasized on the image. One of the ways for the estimate of model parameters is a method of Hough vote and its modifications – Hough probabilistic transformation, Hough random transformation, Hough hierarchical transformation, phase space blurriness, use of a gra-dient of image brightness and so on. As an alternative way for models selection is a choice of suitable points from a set of data.

scholarly journals Building a database for complex industrial monitoring systems

2021 ◽  
Vol 31 (1) ◽  
pp. 65-73
Author(s):  
M. Z. Benenson ◽  
E. A. Alekseeva
Keyword(s):  
Variable Number ◽  
Software Implementation ◽  
Monitoring Systems ◽  
Complex Data ◽  
Application Development ◽  
Industrial Facilities ◽  
Software Interface ◽  
Wide Range ◽  
Industrial Monitoring ◽  
Complex Data Structure

Problem statement. When creating monitoring systems for industrial facilities for a range of purposes, it becomes necessary to solve processing and storing objects with a complex data structure. The user must be provided with tools for processing and storing the defined data and object types that they have defined.Objective. Development of a software implementation of the interface for interaction with the database built into industrial facilities’ monitoring system.Results. A software interface for interacting with an object-oriented database has been developed. Three programming classes are used to describe various types of industrial system objects. Class methods have been developed that allow setting a variable number of attributes for different object types. The authors propose a method for extracting an object with specified attribute values, similar to the QBE method, and a method for complex (natural) queries written in the application development language.Practical implications. The proposed software implementation of the interface for interaction with the built-in database can be used to create a wide range of industrial monitoring systems. This approach allows to significantly reduce the computing resources required for the implementation of such systems, reduces the time and cost of their development.

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