scholarly journals UNDERGROUND SURVEYING: 16<sup>TH</sup> CENTURY CELLAR VAULTS IN THE GALERÍA DE CONVALECIENTES, MONASTERY OF SAN LORENZO DEL ESCORIAL

2017 ◽  
Vol XLII-2/W3 ◽  
pp. 179-186 ◽  
Author(s):  
P. Chías ◽  
T. Abad ◽  
E. Echeverría ◽  
M. De Miguel ◽  
P. Llorente
Keyword(s):  
3D Model ◽  
Geodetic Network ◽  
Control Points ◽  
Architectural Heritage ◽  
San Lorenzo ◽  
Complex Spaces ◽  
Singular Complex Spaces ◽  
Essential Problem

Underground surveying of cellars, caves, and architectural spaces, is quite different from surveying on the surface. Researchers must deal with various challenges derived of the lack of natural light, low temperature, and humidity, but also with inaccessibility. But the essential problem in underground surveying is that of orientating the underground surveys to the surface surveys. For this purpose our methodology integrates different geomatic techniques, as the use of a scanner laser in order to obtain a 3D model, as well as classic topography, and GPS to locate accurately the control points according to the official reference frame of the Spanish Geodetic Network. The developed methodology is described and applied to the case study of the cellars of the Gallery of Convalescents (Galería de Convalecientes) in the Royal Monastery of San Lorenzo de El Escorial. These cellars compose an outstanding series of interrelated singular complex spaces. Their study is particularly relevant because of the quality of the stonework, the geometry of the vaults and lunettes, and the stereotomy. The fact that these spaces were neither surveyed nor studied before, must be stressed. And our work will bring into light an important part of the 16th century Spanish architectural heritage. Finally, the INSPIRE Directive becomes an opportunity to integrate cultural heritage datasets into an interoperable framework, and to share and diffuse them as geographic information.

scholarly journals Designing Control Points in UAV-Photogrammetry Mapping Using GNSS Concept to Produce Land Use Map (Case Study: Ciwidey Village, Bandung Regency, Indonesia)

2019 ◽  
Vol 94 ◽  
pp. 01020
Author(s):  
Sadikin Hendriatiningsih ◽  
Asep Y. Saptari ◽  
Sudarman ◽  
Ratri Widyastuti ◽  
Putri Rahmadani
Keyword(s):  
Observation Time ◽  
Baseline Length ◽  
Control Points ◽  
Quality Of Control ◽  
Field Situation ◽  
American Society ◽  
Time Accuracy ◽  
And Control

Production of orhtophoto maps from UAV-photogrammetry method depend on aerial data and control points that are measured by GNSS method. Quality control of orhtophoto maps need comparison coordinate from Check Points and orthophoto maps coordinate to calculate the Root Mean Square Error (RMSE). So that, quality of control points is important in aerial data processing. In this research, baseline length, observation time, measurement method, and area characteristics will be discussed based on the GNSS concept to fulfill the accuracy standard of control points from the American Society of Photogrammetry and Remote Sensing (ASPRS). The shorter baseline length, and the loner observation time, accuracy should be increase significantly, but it depends on the field situation and the accuracy required for the user. After all, the result of this research is to obtain control points design based on GNSS concept in Ciwidey Village, Bandung Regency

scholarly journals DIGITAL TECHNOLOGIES AND 3D-MODELING OF URBAN PLANNING (THE TOMSK CASE STUDY)

2020 ◽  
Vol 22 (6) ◽  
pp. 70-82
Author(s):  
V. I. Korenev
Keyword(s):  
Urban Planning ◽  
3D Modeling ◽  
Architectural Design ◽  
3D Model ◽  
Digital Technologies ◽  
3D Models ◽  
Architectural Heritage ◽  
Heritage Preservation ◽  
Planning Problems

The paper studies the use of digital technologies and 3D models of cities in solving urban planning problems. The experience in creating the information system for ensuring urban planning and internet sites in Tomsk is demonstrated and the possibilities are shown for their use in graphic-analytic research. The 3D model of the Tomsk-city is proposed to design and explore the flood processes, land use non-observances, architectural design and modeling of the urban environment, and requirements for the architectural heritage preservation.

scholarly journals HBIM IN A SEMANTIC 3D GIS DATABASE

2019 ◽  
Vol XLII-2/W11 ◽  
pp. 857-865 ◽  
Author(s):  
F. Matrone ◽  
E. Colucci ◽  
V. De Ruvo ◽  
A. Lingua ◽  
A. Spanò
Keyword(s):  
Cultural Heritage ◽  
3D Model ◽  
Recent Past ◽  
Architectural Heritage ◽  
Risk Zone ◽  
Architectural Elements ◽  
Digital Documentation ◽  
Santa Maria ◽  
The Church

<p><strong>Abstract.</strong> This work describes the different attempts and the consequent results derived from the integration of an HBIM model into an already structured spatial database (DB) and its 3D visualisation in a GIS project.</p><p>This study is connected to the European ResCult (Increasing Resilience of Cultural Heritage) project where a DB for multiscale analyses was defined. To test the methodology proposed, the case study of Santa Maria dei Miracoli church in Venice was chosen since it represents a complex architectural heritage piece in a risk zone, it has been subject to a vast restoration intervention in the recent past but a digital documentation and model concerning it was missing.</p><p>The 3D model of the church was structured in Revit as a HBIM, with the association of different kind of information and data related to the architectural elements by means of ‘shared parameters’ and ‘system families’. This procedure allows to reach an even higher Level of Detail (LOD4), but lead to some issues related to the semantic and software interoperability. To solve these problems the existing DB for the resilience of cultural heritage was extended adding a new entity representing the architectural elements designed in the BIM project.</p><p>The aim of the test is to understand how the data and attributes inserted in the HBIM are converted and handled when dealing with a GIS DB, stepping from the IFC to the CityGML standard, through the FME software.</p>

scholarly journals Suitability Study of Structure-from-Motion for the Digitisation of Architectural (Heritage) Spaces to Apply Divergent Photograph Collection

Symmetry ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 1981
Author(s):  
Juan Moyano ◽  
Juan E. Nieto-Julián ◽  
Daniel Antón ◽  
Elena Cabrera ◽  
David Bienvenido-Huertas ◽  
...  
Keyword(s):  
Structure From Motion ◽  
Laser Scanning ◽  
Low Cost ◽  
Point Clouds ◽  
Control Points ◽  
Architectural Heritage ◽  
High Definition ◽  
Symmetrical Configuration ◽  
Architectural Spaces

The digitisation of architectural heritage has experienced a great development of low-cost and high-definition data capture technologies, thus enabling the accurate and effective modelling of complex heritage assets. Accordingly, research has identified the best methods to survey historic buildings, but the suitability of Structure-from-Motion/Multi-view-Stereo (SfM/MVS) for interior square symmetrical architectural spaces is unexplored. In contrast to the traditional SfM surveying for which the camera surrounds the object, the photograph collection approach is divergent in courtyards. This paper evaluates the accuracy of SfM point clouds against Terrestrial Laser Scanning (TLS) for these large architectural spaces with a symmetrical configuration, with the main courtyard of Casa de Pilatos in Seville, Spain, as a case study. Two different SfM surveys were conducted: (1) Without control points, and (2) referenced using a total station. The first survey yielded unacceptable results: A standard deviation of 0.0576 m was achieved in the northwest sector of the case study, mainly because of the difficulty of aligning the SfM and TLS data due to the way they are produced. This value could be admissible depending on the purpose of the photogrammetric model.

scholarly journals IMPLEMENTATION OF CLOSE RANGE PHOTOGRAMMETRY USING MODERN NON-METRIC DIGITAL CAMERAS FOR ARCHITECTURAL DOCUMENTATION

2021 ◽  
Vol 47 (1) ◽  
pp. 45-53
Author(s):  
Mariem A. Elhalawani ◽  
Zaki M. Zeidan ◽  
Ashraf A. A. Beshr
Keyword(s):  
3D Model ◽  
Historical Research ◽  
Control Points ◽  
Digital Cameras ◽  
Flatbed Scanner ◽  
Historical Structures ◽  
Close Range Photogrammetry ◽  
Close Range ◽  
Architectural Documentation

The development of applied geodetic techniques for mapping and documentation of historical structures, buildings and sites is an important and vital purpose for contribution of any recording of cultural heritage for any country such as Egypt. This is done to preserve and restore any valuable architectural or other cultural monument, as a support to architectural, archaeological and other art-historical research throughout the ages. The purpose of this paper is to use close range photogrammetry technique (CRP) to reconstruct 3D model of architectural and historical mosque facade and comparing the accuracy of using digital commercial non-metric cameras with different resolutions and metric camera with flatbed scanner and photogrammetric scanner for architectural building documentation. El-Nasr Mosque façade in Mansoura city, Egypt was chosen as a case study in this paper. At first, twenty five points were selected at mosque façade at different elevations and distributed at different façade surfaces and observed using total station. Some of these points were selected as control points and the others were selected as check points to validate the results. Effect of control point’s number on image processing and analysis is also studied. Three cameras positions were selected for imaging to get the full details of mosque façade. Close range Digital Workstation (CDW) program was used for processing and analysis of multiple images. The results are indicated that close range photogrammetry using metric camera with photogrammetry scanner instead of flatbed scanner in technique is accurate enough to be beneficial in 3D architectural building documentation. Digital cameras with CRP technique give up different accuracy that depends mainly on the resolution of cameras and camera specifications.

scholarly journals THE 3D SURVEY OF THE ROMAN BRIDGE OF SAN LORENZO IN PADOVA (ITALY): A COMPARISON BETWEEN SFM AND TLS METHODOLOGIES APPLIED TO THE ARCH STRUCTURE

2019 ◽  
Vol XLII-2/W15 ◽  
pp. 255-262
Author(s):  
F. Carraro ◽  
M. Monego ◽  
C. Callegaro ◽  
A. Mazzariol ◽  
M. Perticarini ◽  
...  
Keyword(s):  
Laser Scanning ◽  
Point Clouds ◽  
3D Models ◽  
San Lorenzo ◽  
Close Range ◽  
3D Photogrammetry ◽  
Survey Methodologies ◽  
Peculiar Case

<p><strong>Abstract.</strong> 3D survey methodologies are widely applied to the Cultural Heritage, employing both TLS and close-range photogrammetry with SfM techniques. Laser scanning produces models with high metric reliability and accuracy, whereas the main quality of the 3D photogrammetry is the result in term of photorealistic representation. Many studies have been conducted about the comparison and the integration of these different approaches and the aim of this paper is to contribute with a peculiar case study: the underground Roman bridge of San Lorenzo in Padova (Italy). The investigation regards the resulting point clouds of the intrados (or inner curve) of the central arch, comparing them and providing graphical and analytical outputs. The proposed workflow has the purpose to be a simple but valid tool to detect and evaluate geometrical differences, their significativity and the reliability of the 3D models.</p>

scholarly journals Photogrammetry (SfM) vs. Terrestrial Laser Scanning (TLS) for Archaeological Excavations: Mosaic of Cantillana (Spain) as a Case Study

2021 ◽  
Vol 11 (24) ◽  
pp. 11994
Author(s):  
Carmen Marín-Buzón ◽  
Antonio Miguel Pérez-Romero ◽  
Manuel J. León-Bonillo ◽  
Rubén Martínez-Álvarez ◽  
Juan Carlos Mejías-García ◽  
...  
Keyword(s):  
Laser Scanning ◽  
3D Model ◽  
Laser Scanner ◽  
Control Points ◽  
Ground Control Points ◽  
Accuracy And Precision ◽  
Restoration Work ◽  
Special Relevance ◽  
Archaeological Excavations

The discovery of a Roman mosaic from the 2nd century AD in Cantillana (Seville) generated interest and the need for exhaustive documentation, so that it could be recreated with real measurements in a 3D model, not only to obtain an exact replica, but with the intention of analyzing and studying the behavior of two main geomatics techniques. Thus, the objective of this study was the comparative analysis of both techniques: near object photogrammetry by SfM and terrestrial laser scanner or TLS. The aim of this comparison was to assess the use of both techniques in archaeological excavations. Special attention was paid to the accuracy and precision of measurements and models, especially in altimetry. Mosaics are frequently relocated from their original location to be exhibited in museums or for restoration work, after which they are returned to their original place. Therefore, the altimetric situation is of special relevance. To analyze the accuracy and errors of each technique, a total station was used to establish the real values of the ground control points (GCP) on which the comparisons of both methods were to be made. It can be concluded that the SfM technique was the most accurate and least limiting for use in semi-buried archaeological excavations. This manuscript opens new perspectives for the use of SfM-based photogrammetry in archaeological excavations.

scholarly journals Microbiological quality of ice cream after HACCP implementation: a factory case study

2008 ◽  
Vol 26 (No. 5) ◽  
pp. 383-391 ◽  
Author(s):  
N. Kokkinakis E ◽  
A. Fragkiadakis G ◽  
H. Ioakeimidi S ◽  
B. Giankoulof I ◽  
N. Kokkinaki A
Keyword(s):  
Escherichia Coli ◽  
Hazard Analysis ◽  
Microbiological Quality ◽  
Ice Cream ◽  
Control Points ◽  
Critical Control Points ◽  
Haccp System ◽  
Plate Counts

The microbiological quality of the final product and the safety of the production procedures were screened in an ice cream factory, after implementation of a Hazard Analysis Critical Control Points (HACCP) system. We analysed 30 vanilla (IC1), 30 strawberry (IC2), and 30 chocolate flavoured (IC3) samples of ice cream; 30 of water; 90 of personnel’s hands flora; 150 of plastic ice cream containers flora; 50 of sanitised equipment-surfaces flora. After HACCP introduction, Staphylococcus aureus was not further detectable in ice cream and Escherichia coli was mostly less than 10 CFU/g, while the spoilage markers (total coliforms – TC, aerobic plate counts – APC) in ice cream and the environment were reduced by 20–35%. Mean log CFU/g, for IC1: TC from 2.20 reduced to 1.57, APC from 4.58 reduced to 3.62. For IC2: TC from 2.29 reduced to 1.65, APC from 4.61 reduced to 3.49. For IC3: TC from 2.67 reduced to 1.76, APC from 5.08 reduced to 3.81.

scholarly journals Influence of the Datum Definition on the Accuracy of Horizontal Geodetic Control Networks for Engineering Objects

2019 ◽  
Vol 8 (3) ◽  
pp. 99-106
Author(s):  
Nedim Tuno ◽  
Admir Mulahusić ◽  
Jusuf Topoljak
Keyword(s):  
Geodetic Network ◽  
Control Points ◽  
Engineering Structures ◽  
Control Networks ◽  
Geometrical Distribution ◽  
Quality Of Control ◽  
Design And Implementation ◽  
Triangulation Network ◽  
Geodetic Control

For the construction of various civil engineering structures, particular care should be taken in the perspective of geodetic control. Therefore, the design and implementation of the geodetic network deserves special attention. This paper is focused on various aspects of datum definitions for tested micro-triangulation network. It was shown that the geometrical distribution of datum points in a minimally constrained solution has a great impact on the accuracy of the geodetic network. Estimates of the accuracies of individual station y-x coordinates, error circles and error ellipses, obtained by free adjustment, where the datum selection was independent of errors in fixed coordinates, revealed much better quality of control points.

Misophonia: An Evidence-Based Case Report

2020 ◽  
Vol 29 (4) ◽  
pp. 685-690
Author(s):  
C. S. Vanaja ◽  
Miriam Soni Abigail
Keyword(s):  
Quality Of Life ◽  
Case Report ◽  
Case History ◽  
Pure Tone ◽  
Physiological Responses ◽  
Evidence Based ◽  
Management Option ◽  
Pure Tone Audiogram

Purpose Misophonia is a sound tolerance disorder condition in certain sounds that trigger intense emotional or physiological responses. While some persons may experience misophonia, a few patients suffer from misophonia. However, there is a dearth of literature on audiological assessment and management of persons with misophonia. The purpose of this report is to discuss the assessment of misophonia and highlight the management option that helped a patient with misophonia. Method A case study of a 26-year-old woman with the complaint of decreased tolerance to specific sounds affecting quality of life is reported. Audiological assessment differentiated misophonia from hyperacusis. Management included retraining counseling as well as desensitization and habituation therapy based on the principles described by P. J. Jastreboff and Jastreboff (2014). A misophonia questionnaire was administered at regular intervals to monitor the effectiveness of therapy. Results A detailed case history and audiological evaluations including pure-tone audiogram and Johnson Hyperacusis Index revealed the presence of misophonia. The patient benefitted from intervention, and the scores of the misophonia questionnaire indicated a decrease in the severity of the problem. Conclusions It is important to differentially diagnose misophonia and hyperacusis in persons with sound tolerance disorders. Retraining counseling as well as desensitization and habituation therapy can help patients who suffer from misophonia.

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