scholarly journals DIGITAL DOCUMENTATION OF FRANK LLOYD WRIGHT’S MASTERPIECE, FALLINGWATER

2017 ◽  
Vol XLII-2/W5 ◽  
pp. 389-393
Author(s):  
P. Jerome ◽  
D. Emilio
Keyword(s):  
Laser Scanning ◽  
Professional Staff ◽  
Winter Period ◽  
Frank Lloyd Wright ◽  
The Public ◽  
Guest House ◽  
Paint Stripping ◽  
Digital Documentation ◽  
Architectural Preservation ◽  
Photo Mosaic

Since 1988, the professional staff of Architectural Preservation Studio (APS) has been involved with the conservation of Frank Lloyd Wright’s Fallingwater in Mill Run, PA. Designed and erected from 1935 to 1939 as a weekend home for the Kauffman family, the complex consists of the main house and guest house.<br><br> After five years of reports and prototype repairs, we produced a two-volume master plan. Using original Frank Lloyd Wright drawings from Avery Library as background drawings, we measured every surface and reproduced the drawings in CAD, also developing elevations of every room. Stone-by-stone drawings of every flagstone floor and terrace scheduled to be lifted were also created using overlapping film photography that was assembled into a photo mosaic. By 2005, we designed, administered and completed a four-phase exterior restoration, with the paint-stripping and repainting of interior rooms being performed during the brief winter period when the building is closed to the public on an ongoing basis.<br><br> In 2016, we were invited back to the site to review conditions and advise on routine maintenance. At that time we proposed to re-document the buildings, this time using laser-scanning. Laser-scanning of the exterior was performed in May of 2016, and of the interior in March 2017, each over the course of four days. This paper will make a comparison between manual and digital techniques in terms of Fallingwater’s documentation.

scholarly journals DIGITAL WORKFLOW FOR THE CONSERVATION OF BAHRAIN BUILT HERITAGE: THE SHEIK ISA BIN ALI HOUSE

2017 ◽  
Vol XLII-2/W5 ◽  
pp. 65-70
Author(s):  
L. Barazzetti ◽  
D. Mezzino ◽  
M. Santana Quintero
Keyword(s):  
Cultural Identity ◽  
Laser Scanning ◽  
Heritage Conservation ◽  
Historic Sites ◽  
Digital Workflow ◽  
Built Heritage ◽  
Commercial Market ◽  
Digital Documentation ◽  
Data Acquisition And Processing ◽  
Built Heritage Conservation

Currently, the commercial market offers several tools for digital documentation of historic sites and buildings. Photogrammetry and laser scanning play a fundamental role in the acquisition of metric information, which is then processed to generate reliable records particularly useful also in the built heritage conservation field. Although potentially very fast and accurate, such techniques require expert operators to produce reliable results, especially in the case of complex and large sites.<br><br> The aim of this paper is to present the digital workflow developed for data acquisition and processing of the Shaikh Isa Bin Ali house in Muharraq, Bahrain. This historic structure is an outstanding example of Bahrain architecture as well as tangible memory of the country history, with strong connotations in the Bahrain cultural identity. The building has been documented employing several digital techniques, including: aerial (drone) and terrestrial photogrammetry, rectifying photography, total station and laser scanning. The documentation project has been developed for the Bahrain Authority for Culture and Antiquities (BACA) by a multidisciplinary team of experts from Carleton Immersive Media Studio (CIMS, Carleton University, Canada) and Gicarus Lab (Politecnico di Milano, Italy).

Planning Staff Training for Virtual High Schools

2011 ◽  
pp. 142-150
Author(s):  
Chris Thompson ◽  
Zane L. Berge
Keyword(s):  
Standardized Test ◽  
Professional Staff ◽  
Virtual Schools ◽  
Standardized Test Scores ◽  
Online Student ◽  
The Public ◽  
Stage Of Development ◽  
Planning Staff ◽  
Online Schools ◽  
Quality Professional Development

This chapter briefly profiles three virtual schools, each at a different stage of development, yet each dependent upon a successful and sustained distance education program for its professional staff in order to remain viable long into the future. As virtual schools become more accepted by the public and the attention given to the online schools shifts from their sources of funding to their standardized test scores, a model for sustained distance training and education must be in place to deliver quality professional development that can positively impact students’ achievement scores on standardized tests for each school’s online student population.

scholarly journals Physiotherapy for the sequelae of physical torture: Uganda’s experience

1999 ◽  
Vol 55 (4) ◽  
pp. 29
Author(s):  
Mayanja Fred
Keyword(s):  
Human Rights ◽  
Social Worker ◽  
Professional Staff ◽  
Psychiatric Nurses ◽  
Community Leaders ◽  
Clinical Psychologist ◽  
Rehabilitation Services ◽  
The Public ◽  
Nongovernmental Organisation ◽  
Torture Victims

The paper discusses the African Centre for treatment and rehabilitation of torture victims (ACTV) which was established in Uganda in 1993. The ACTV is a nongovernmental organisation offering treatment to the victims of torture. Professional staff at the centre include a physiotherapist, clinical psychologist, social worker, psychiatrist and psychiatric nurses. Specialised medical services outside of these areas that may be required, are provided by outside specialists.Torture commonly involves both physical and psychological abuse and is often administered by individuals on behalf of an institution or organisation with the aim of punishing or intimidating a victim or attempting to obtain information from a victim. Physical torture may involve beatings, kickings, tyings, suspensions in forced positions, hard labour and other such physical abuse.Apart from offering treatment and rehabilitation services the ACTV aims to raise awareness in the public arena concerning the plight of torture victims through workshops and seminars conducted in hospitals, schools and other institutions. Services are carried out both at the centre and in the community where satellite centres have been established. Referrals to the ACTV come from a wide variety of sources including, hospitals, human rights institutions, community leaders and self-referral.From July to December 1997 the physiotherapist working at the centre conducted a survey of clients referred to the ACTV. During this period 309 people were referred to the centre; 45% male and 55% female. (See table below)In this survey approximately 90% of the clients were referred for physiotherapy and 10% were referred to other specialists. It was reported that 97% of the victims showed improvement following treatment although the criteria for this are not discussed.An emphasis regarding the respectful and ethical handling of clients is emphasised throughout the paper. For example, not pursuing a particular line of questioning should the client not want to answer a particular question; avoiding the use of equipment that may remind the client of their torture (eg. ropes and certain electrotherapy apparatus) and listening carefully to the client’s regarding their treatment.

scholarly journals A comparative analysis of 3-D representations of urban flood map in virtual environments for hazard communication purposes

2018 ◽  
Vol 40 ◽  
pp. 06037 ◽  
Author(s):  
Rosa De Santis ◽  
Francesco Macchione ◽  
Pierfranco Costabile ◽  
Carmelina Costanzo
Keyword(s):  
Comparative Analysis ◽  
Water Level ◽  
Laser Scanning ◽  
Flood Hazard ◽  
Flood Hazards ◽  
Urban Flood ◽  
Hazard Communication ◽  
The Public ◽  
The Individual ◽  
The Impact

The flood hazard/risk maps do not allow a non-expert audience an immediate perception of the flooding impacts. Therefore, we need to modernize maps providing new communication approaches. In this context, 3-D representations of flood inundation through emerging formats in virtual and augmented realities may be considered as a powerful tool to engage users with flood hazards. The challenge of the research is to create a virtual 3-D environment aimed at supporting the public, practitioners and decision-makers in interpreting and understanding the impact of simulated flood hazards. For this purpose, the paper aims to perform a comparative analysis of two techniques to carry out the 3-D realistic visualizations of a flood map for representing a potential flooding of the Crati River, in the old town of Cosenza (South of Italy). The first approach develops a simple and quick workflow that provides an overall look at a neighbourhood level, but reveals some limits in water level visualization at the individual buildings scale. The second one requires additional terrestrial laser scanning (TLS) acquisition and overcomes some limits of the first approach, by providing a visual insight about water level close to building façades.

scholarly journals Three-Dimensional Digital Documentation of Cultural Heritage Site Based on the Convergence of Terrestrial Laser Scanning and Unmanned Aerial Vehicle Photogrammetry

2019 ◽  
Vol 8 (2) ◽  
pp. 53 ◽  
Author(s):  
Young Jo ◽  
Seonghyuk Hong
Keyword(s):  
Cultural Heritage ◽  
Unmanned Aerial Vehicle ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Terrestrial Laser Scanning ◽  
Three Dimensional Model ◽  
Positional Accuracy ◽  
Heritage Sites ◽  
Aerial Vehicle ◽  
Digital Documentation

Three-dimensional digital technology is important in the maintenance and monitoring of cultural heritage sites. This study focuses on using a combination of terrestrial laser scanning and unmanned aerial vehicle (UAV) photogrammetry to establish a three-dimensional model and the associated digital documentation of the Magoksa Temple, Republic of Korea. Herein, terrestrial laser scanning and UAV photogrammetry was used to acquire the perpendicular geometry of the buildings and sites, where UAV photogrammetry yielded higher planar data acquisition rate in upper zones, such as the roof of a building, than terrestrial laser scanning. On comparing the two technologies’ accuracy based on their ground control points, laser scanning was observed to provide higher positional accuracy than photogrammetry. The overall discrepancy between the two technologies was found to be sufficient for the generation of convergent data. Thus, the terrestrial laser scanning and UAV photogrammetry data were aligned and merged post conversion into compatible extensions. A three-dimensional (3D) model, with planar and perpendicular geometries, based on the hybrid data-point cloud was developed. This study demonstrates the potential for using the integration of terrestrial laser scanning and UAV photogrammetry in 3D digital documentation and spatial analysis of cultural heritage sites.

scholarly journals Data processing workflows from low-cost digital survey to various applications: three case studies of Chinese historic architecture

2015 ◽  
Vol XL-5/W7 ◽  
pp. 409-416 ◽  
Author(s):  
Z. Sun ◽  
Y. K. Cao
Keyword(s):  
Structural Analysis ◽  
Data Processing ◽  
Case Studies ◽  
Laser Scanning ◽  
Low Cost ◽  
Point Clouds ◽  
Element Analysis ◽  
Prime Concern ◽  
Architectural Preservation ◽  
Digital Survey

The paper focuses on the versatility of data processing workflows ranging from BIM-based survey to structural analysis and reverse modeling. In China nowadays, a large number of historic architecture are in need of restoration, reinforcement and renovation. But the architects are not prepared for the conversion from the booming AEC industry to architectural preservation. As surveyors working with architects in such projects, we have to develop efficient low-cost digital survey workflow robust to various types of architecture, and to process the captured data for architects. Although laser scanning yields high accuracy in architectural heritage documentation and the workflow is quite straightforward, the cost and portability hinder it from being used in projects where budget and efficiency are of prime concern. We integrate Structure from Motion techniques with UAV and total station in data acquisition. The captured data is processed for various purposes illustrated with three case studies: the first one is as-built BIM for a historic building based on registered point clouds according to Ground Control Points; The second one concerns structural analysis for a damaged bridge using Finite Element Analysis software; The last one relates to parametric automated feature extraction from captured point clouds for reverse modeling and fabrication.

scholarly journals SURVEY AND MODELLING FOR THE BIM OF BASILICA OF SAN MARCO IN VENICE

2017 ◽  
Vol XLII-2/W3 ◽  
pp. 303-310 ◽  
Author(s):  
L. Fregonese ◽  
L. Taffurelli ◽  
A. Adami ◽  
S. Chiarini ◽  
S. Cremonesi ◽  
...  
Keyword(s):  
High Resolution ◽  
Laser Scanning ◽  
Geometric Model ◽  
Data Organization ◽  
The Public ◽  
Mesh Model ◽  
Alternative Systems ◽  
Work Units ◽  
The Church ◽  
Mesh Models

The Basilica of San Marco is a singular case in the field of Cultural heritage, as it constitutes a construction site always active for the maintenance and preservation of the basilica itself. The continuous intervention of conservation, due to the particular environmental conditions of Venice and the opening to the public, together with the complexity of the building itself, imposes the need to identify an optimized management system. For this reason, in 2013 the Procurator of St. Marco Basilica commissioned the construction of a 3D model of the Basilica to be used for the creation of a BIM. The model must meet the required precision of the scale of 1:50, and should also include, in addition to the geometric description, a description of the mosaic and marble surfaces of the basilica through high resolution orthophoto which are essential for the restoration of the mosaics. <br><br> The complexity of the church and the large and continuous flow of public led to work in non-optimal conditions especially for the acquisition stage. The basilica has certain peculiarities that led to some important choices, for example the use of photogrammetry instead of laser scanning technique. The same technique was preferred also by the need to realize, in addition to the geometric model, high-resolution orthophotos of marbles and mosaic surfaces. <br><br> The modelling of the basilica has highlighted a number of problems related to the building features. The basilica, indeed, is the result of the juxtaposition of elements (capitals, columns) with different origin, which therefore cannot be standardized in special libraries. Moreover, especially in the extensive mosaic areas, there are not edges that characterize the architecture, but only beveled surfaces. This has resulted in a change also in the modeling paradigm with the need to identify alternative systems even for the construction of simple elements. Therefore, we decided to model using NURBS since it is the method that allows greater adherence to reality and, at the same time, a model with acceptable dimensions in terms of navigation and usability. Only the most sculptural pieces such as capitals and statues have been replaced by mesh models. <br><br> As we were interested in different elaborations, the results of this work are a geometric NURBS model for the subsequent insertion into BIM environment, with the possibility of extracting two-dimensional drawings such as plans and sections, a mesh model with low resolution textures for online navigation and high resolution orthophotos. <br><br> The survey work and modeling has been almost completed for the interior of the basilica whereas only the external remains to be acquired and modeled. For the management of the entire work it was decided to use the data organization system already used by the Politecnico di Milano for the Duomo di Milano. The BIM3DSURVEY system will be essential not only to manage the finished model, but it has been very useful also during the construction phase because it allows us to divide the entire work into more work units. However, this system required some changes to meet the peculiarity of this BIM, in particular the need to append and link the orthophotos to real surfaces, in order to use the model also as a spatial index for the images.

scholarly journals The Petawawa Research Forest: Establishment of a remote sensing supersite

2019 ◽  
Vol 95 (03) ◽  
pp. 149-156 ◽  
Author(s):  
Joanne C. White ◽  
Hao Chen ◽  
Murray E. Woods ◽  
Brian Low ◽  
Sasha Nasonova
Keyword(s):  
Remote Sensing ◽  
Laser Scanning ◽  
New Technologies ◽  
Open Data ◽  
Digital Terrain Model ◽  
Lessons Learned ◽  
Remotely Sensed Data ◽  
The Public ◽  
Terrain Model ◽  
Digital Terrain

The pace of technological change in forest inventory and monitoring over the past 50 years has been remarkable, largely asa result of the increased availability of various forms of remotely sensed data. Benchmarking sites, with the requisite refer-ence and baseline data for evaluating the capacities of new technologies, algorithms, and approaches, can be extremely valu-able for sparking innovation, as well as for enabling transparent and scientifically sound assessments of technologies, newdata streams, and associated information outcomes. Herein we describe the establishment of a remote sensing supersite atthe Petawawa Research Forest (PRF) in southern Ontario, Canada, and summarize the open access datasets that have beencompiled and made available to the public. The PRF is approximately 10 000 ha in size and represents a complex assemblageof tree species and forest structures. More than 1900 data records, including multiple airborne laser scanning datasets andassociated derivatives (i.e., digital terrain model, canopy height model), airborne imagery, satellite remote sensing timeseries, and ground plot data, among others, have been made openly available for download from Canada’s National ForestInformation System. We identify issues and present opportunities associated with the establishment of a remote sensingsupersite at the PRF, as well as share some of the lessons learned to foster the establishment and open data sharing for othernational and international remote sensing supersites. The PRF supersite can be accessed from the following link: https://opendata.nfis.org/mapserver/PRF.html .

scholarly journals A Study on Digital Documentation of Precise Monitoring for Microscale Displacements within the Tomb of King Muryeong and the Royal Tombs in Gongju, Korea

2021 ◽  
Vol 37 (6) ◽  
pp. 626-637
Author(s):  
Il Kyu Choi ◽  
Hye Ri Yang ◽  
Chan Hee Lee
Keyword(s):  
Precise Measurement ◽  
Cross Validation ◽  
Environmental Changes ◽  
Future Research ◽  
3D Image ◽  
The Public ◽  
Measurement Monitoring ◽  
Deviation Analysis ◽  
Digital Documentation ◽  
Image Models

The tomb complex of the royal family from the period of the Ungjin Baekje Kingdom (475 to 538 AD) in Gongju, Korea, contains the tomb of King Muryeong and other royal tombs. After the excavation of the tomb of King Muryeong in 1971, these tombs were opened up to the public, without the establishment of systems for their safety, conservation and management. The tombs have consequently experienced rapid environmental changes and suffered various damages. In this study, specific vulnerable parts inside the tombs were selected for deviation analysis using 3D scanning, and 3D image models were constructed on this basis. Progressive displacement was identified in tomb No. 5, and basic data for future investigations was acquired from tomb No. 6 and the tomb of King Muryeong. In the deviation analysis for the southern plastered wall of tomb No. 5, the damage was not found to exceed the ranges of ±18 mm and ±2 mm. However, the lintel stone was found to be sagging by 0.32 mm on average, and the distance between the walls to have increased by 0.36 mm on average. Direct water seepage occurring in tomb No. 5 is considered to be increasing the damage within the tomb, such as the dropping and sagging of the lintel. The 3D image models constructed in this study will play an important role as baseline data for future research, and can be used to discuss a secure conservation scheme for the tombs through cross-validation with precise measurement monitoring.

scholarly journals THREE-DIMENSIONAL DIGITAL DOCUMENTATION OF HERITAGE SITES USING TERRESTRIAL LASER SCANNING AND UNMANNED AERIAL VEHICLE PHOTOGRAMMETRY

2017 ◽  
Vol XLII-2/W5 ◽  
pp. 395-398 ◽  
Author(s):  
Y. H. Jo ◽  
J.Y. Kim
Keyword(s):  
Cultural Heritage ◽  
Unmanned Aerial Vehicle ◽  
Laser Scanning ◽  
Three Dimensional ◽  
Terrestrial Laser Scanning ◽  
Heritage Sites ◽  
Ground Control Points ◽  
Aerial Vehicle ◽  
Digital Documentation ◽  
Absolute Coordinate System

Three-dimensional digital documentation is an important technique for the maintenance and monitoring of cultural heritage sites. This study focuses on the three-dimensional digital documentation of the Magoksa Temple, Republic of Korea, using a combination of terrestrial laser scanning and unmanned aerial vehicle (UAV) photogrammetry. Terrestrial laser scanning mostly acquired the vertical geometry of the buildings. In addition, the digital orthoimage produced by UAV photogrammetry had higher horizontal data acquisition rate than that produced by terrestrial laser scanning. Thus, the scanning and UAV photogrammetry were merged by matching 20 corresponding points and an absolute coordinate system was established using seven ground control points. The final, complete threedimensional shape had perfect horizontal and vertical geometries. This study demonstrates the potential of integrating terrestrial laser scanning and UAV photogrammetry for three-dimensional digital documentation. This new technique is expected to contribute to the three-dimensional digital documentation and spatial analysis of cultural heritage sites.

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