Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	cf2005_2_52_159
id	cf2005_2_52_159
authors	SHIH Naai-Jung and WU Ming-Chang
year	2005
title	A 3D Point-cloud-based Verification of As-built Construction Progress
source	Learning from the Past a Foundation for the Future [Special publication of papers presented at the CAAD futures 2005 conference held at the Vienna University of Technology / ISBN 3-85437-276-0], Vienna (Austria) 20-22 June 2005, pp. 193-202
summary	Point clouds were overlapped to reveal differences between two working days. The same type of comparison was made between 2003.2.11 and 2003.12.11. Comparisons between the original schedule and real schedule (the catch-up schedule) were also made. The overlapping test provides one of the most comprehensive checking methods of the as-built progress in a digital format. Examples show that the overlapping comparisons help identify the addition and removal of objects scanned from 50 meters away. The geometric information is feasible for construction inspection and records. Limitations and benefits of overlapping are discussed.
keywords	3D scan, construction technology, schedule
series	CAAD Futures
email
last changed	2005/05/05 07:06

_id	2004_630
id	2004_630
authors	Naai-Jung Shih, Chen-Yan Lin, and Chai-Yuan Liau
year	2004
title	A 3D Information System for the Digital Preservation of Historical Architecture
doi	https://doi.org/10.52842/conf.ecaade.2004.630
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 630-637
summary	The purpose of this study is to build 3D models for the digital preservation of Chinese architecture. A historical architecture, the main hall of the Pao-An Temple, was scanned with a long-range 3D laser scanner. This temple is 19.68 meters wide, 18.2 meters wide, and 15.7 meters high. In total, the exterior and interior were registered into 1958 scans in order to cover the main hall. Scanned point clouds were converted into 3D computer models, sections, and boundary projections. Digital models were used as references for chronological records and comparison. Scanned components included the roof ridge, wood structure, dragon column, and a hanging flower. This research, which was sponsored by the National Science Council, created a two-way construction process, integrated geometric and image data, and established a digital reservation work process. Web pages were made to display 3D color components by using a plug-in to enable browsing of large files.
keywords	3D Laser Scanner; Historical Preservation
series	eCAADe
email
last changed	2022/06/07 07:59

_id	515caadria2004
id	515caadria2004
authors	Naai-Jung Shih, Chin-Hui Su
year	2004
title	Manipulation of an Automatic Guided Vehicle with 3D Software and Remote Control
doi	https://doi.org/10.52842/conf.caadria.2004.927
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 927-936
summary	The purpose of this research is to build a simulating operation system of automatic guided vehicles (AGV) at a construction site, which including (1) construction path planning system (2) real-time vision information, and (3) simulation system of automatic guided vehicles at the construction site. This paper proposes an efficient method that provides VR-based AGV path guidance with Caligari Truspace 3D software and Python Script. We designed an interactive vision information interface by using LEGO Mindstorms Vision Command combined with Visual Basic ActiveX; and also built an automatic guided vehicle with the functions of obstacle avoidance by LEGO Robotics Invention System. The majority of this research is to develop an effective construction site management model, and develop a construction path planning and a real-time system.
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	404caadria2004
id	404caadria2004
authors	Naai-Jung Shih, Pin-Hung Wang
year	2004
title	Study on Construction Inaccuracies Between Pointcloud and Building Construction Models
doi	https://doi.org/10.52842/conf.caadria.2004.623
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 623-632
summary	This research uses a 3D scanner to scan the construction process at a building construction site in order to produce point-cloud information to compare with the 3D-computer model from a shop drawing. In the check process, we can find construction inaccuracy, and measure the value of the inaccuracy. This will help us determine the precision of the construction methods.
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	2004_128
id	2004_128
authors	Shih, Naai-Jung and Su, Chin-Hui
year	2004
title	Combine 3D Software and Remote Control to Progress Operating Simulation of Automatic Guided Vehicles
doi	https://doi.org/10.52842/conf.ecaade.2004.128
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 128-134
summary	The purpose of this research is to build a simulating operation system of automatic guided vehicles (AGV) at a construction site, which including (1) construction path planning system (2) real-time vision information, and (3) simulation system of automatic guided vehicles at the construction site. This paper proposes an ef- ficient method that provides VR-based AGV path guidance with Caligari Truspace 3D software and Python Script. We designed an interactive vision information interface by using LEGO Mindstorms Vision Command combined with Visual Basic ActiveX; and also built an automatic guided vehicle with the functions of obstacle avoidance by LEGO Robotics Invention System. The majority of this research is to develop an effective construction site management model, and develop a construction path planning and a real-time system.
keywords	Automatic Guided Vehicles, LEGO Mindstorms, Path Planning, Virtual Reality, Vision Information
series	eCAADe
last changed	2022/06/07 07:56

_id	2004_573
id	2004_573
authors	Shih, Naai-Jung and Wang, Pin-Hung
year	2004
title	Using Point Cloud to Inspect the Construction Quality of Wall Finish
doi	https://doi.org/10.52842/conf.ecaade.2004.573
source	Architecture in the Network Society [22nd eCAADe Conference Proceedings / ISBN 0-9541183-2-4] Copenhagen (Denmark) 15-18 September 2004, pp. 573-578
summary	This research used a 3D scanner to scan mortar finish of a wall during building construction, via recorded 3D point cloud information to inspect the wall’s smoothness. The scanner was considered as an objective science instrument to inspect the quality of the finish job in order to assure better construction quality.
keywords	3D Scanner, Point Cloud, Wall Finish
series	eCAADe
email
last changed	2022/06/07 07:59

_id	caadria2009_075
id	caadria2009_075
authors	Shih,Naai-Jung; Jah-Yu Lee, Ching-Feng Chang
year	2009
title	3D Scans of As-Built Urban Scenes in A City Scale
doi	https://doi.org/10.52842/conf.caadria.2009.297
source	Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 297-306
summary	The purpose of this research is to build digital urban landscape, based on as-built environmental information. Scans were made to an expressway and surrounding buildings through the center of a city. A 3D long-range laser scanner was used to record buildings, plants, and open spaces in a static configuration, plus the records of pedestrians, vehicles, objects in a dynamic form. As the scan tolerance can be controlled in less than 4 mm/50 m, the final urban information management system creates a precise description of objects with colors and textures feasible for internet browsing as well as for infrastructure dimensioning and construction monitoring.
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	501caadria2004
id	501caadria2004
authors	Yen-Liang Wu, Yu-Tung Liu, Ying-Shiu Huang, Peiling Wu, Chien-Hui Wong, Tsung-Hsien Wang, Wanping Gao, Wen-Li Shih
year	2004
title	New Interaction of Digital Exhibition - Figures and Spaces
doi	https://doi.org/10.52842/conf.caadria.2004.731
source	CAADRIA 2004 [Proceedings of the 9th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 89-7141-648-3] Seoul Korea 28-30 April 2004, pp. 731-740
summary	The developments of digital media make the exhibition in museum different from the traditional one. According to this case study of the digitalization of sculptures, we attempt to create more interactions between each digitalized sculpture, and to display them in the media of Internet and of the VR CAVE.
series	CAADRIA
email
last changed	2022/06/07 07:57

_id	0ec6
authors	Shih, Naai Jung
year	1997
title	Image Morphing for Architectural Visual Studies
doi	https://doi.org/10.52842/conf.caadria.1997.397
source	CAADRIA ‘97 [Proceedings of the Second Conference on Computer Aided Architectural Design Research in Asia / ISBN 957-575-057-8] Taiwan 17-19 April 1997, pp. 397-406
summary	The purpose of this paper is to suggest and demonstrate how image interpolation, as a tool, can facilitate architectural illustration of design content and process. This study emphasizes a design-oriented image transition process that is distinguished by two types of morphing: process and source. A morp model is presented with components of input, function, output and constraints. Based on a model’s definition, a matrix is used to illustrate the relationship between the two source images by referring to origin, reference plan, configuration, time, etc. Morphing contents emphasizes changes of pixel, outline (2D or 3D), and order. Possible applications in architectural visual studies include morphology study, comparison building renovation before and after, dynamic adjustment, quantitative measurement, dynamic image simulation, and model and image combination.
series	CAADRIA
last changed	2022/06/07 07:56

_id	cf2003_m_083
id	cf2003_m_083
authors	SHIH, Naai-Jung
year	2003
title	A Construction Site in a Scan-based Digital Representation
source	Digital Design - Research and Practice [Proceedings of the 10th International Conference on Computer Aided Architectural Design Futures / ISBN 1-4020-1210-1] Tainan (Taiwan) 13–15 October 2003, pp. 423-432
summary	This study offers a method for creating a representation of an on-going construction site by using a geometric approach. The representation includes the definition of 3D data between the design and construction stages. A method is proposed for using a 3D longrange laser scanner to retrieve information on site occurrences, in order to describe the building construction process based on what really occurs at a site. 3D scans are made in stages or at various time intervals. Retrieved shapes are collected in a discrete manner or in a configuration as a whole. The data collection can be conducted wholly or selectively for key referencing based on registration points. Investigated issues involved are target positioning, identification, retrieval, tracking of objects, behaviour description, characteristic description, and integration of segmental geometric information.
keywords	construction, representation, scan
series	CAAD Futures
last changed	2003/09/22 12:21

_id	ecaade03_347_163_shih
id	ecaade03_347_163_shih
authors	Shih, Naai-Jung
year	2003
title	The Application of Color-image-mapped Rapid Prototyping in Architectural 3D Modeling
doi	https://doi.org/10.52842/conf.ecaade.2003.347
source	Digital Design [21th eCAADe Conference Proceedings / ISBN 0-9541183-1-6] Graz (Austria) 17-20 September 2003, pp. 347-350
summary	The purpose of this study is to present an application of an RP machine in the substantiation of architectural design concepts, using color image mapping to enhance visual details. Related visualization leads to the exploration and comprehension of shapes. Exemplification can be seen in the verification for proofing or documentation of as-built models, such as paper architecture, process modeling, furniture, partitions, and construction details. The influences on architecture reveal issues related to pedagogical exploration, interdisciplinary exploration, reality management, and visual detail and structural detail.
keywords	rapid prototyping; 3D printer; 3D modeling
series	eCAADe
email
last changed	2022/06/07 07:56

_id	acadia03_009
id	acadia03_009
authors	Shih, Naai-Jung
year	2003
title	Digital Architecture - What Would 6000 Points Turn Out To Be?
doi	https://doi.org/10.52842/conf.acadia.2003.067
source	Connecting >> Crossroads of Digital Discourse [Proceedings of the 2003 Annual Conference of the Association for Computer Aided Design In Architecture / ISBN 1-880250-12-8] Indianapolis (Indiana) 24-27 October 2003, pp. 67-73
summary	This paper presents students’ fulfillment of an assignment that explored the concepts of digital architecture using rapid prototyping (RP) process. A point cloud was given to students, and different representational data were substantiated as real 3D physical models. The presence of RP models and the sequential illustration of working steps in their reports revealed that the control of shapes often differed from what students perceived in VR worlds. The results thus confirm that physical models are useful for visualization as well as in design pedagogy.
series	ACADIA
email
last changed	2022/06/07 07:56

_id	2cf4
authors	Shih, Naai-Jung and Huang, Yen-Shih
year	1999
title	An Analysis and Simulation of Curtain Wall Reflection Glare
doi	https://doi.org/10.52842/conf.ecaade.1999.744
source	Architectural Computing from Turing to 2000 [eCAADe Conference Proceedings / ISBN 0-9523687-5-7] Liverpool (UK) 15-17 September 1999, pp. 744-750
summary	This paper presents a computer-aided visualization on the influence of reflected sunbeams from curtain wall buildings. A survey was made to local buildings and it was discovered that reflected glare is a significant urban problem. Based on survey findings, a simulation was conducted to compare with actual occurrences in order to increase the comprehension of the consequences of window orientation and angles in the design stage. The simulation enabled design evaluation with an inspection above normal eye level and in a broader area, than that which normally could be achieved in a site survey at a pedestrian's or a driver's level. The computer simulation verified the influence of reflection on the urban environment by using a time-based record. In order to provide design solutions, the simulation used a 10x10x10 cube in referencing the horizontal area that would receive reflections. Due to the symmetric shape of the cube, a butterfly shaped boundary of reflection area (BRA) was concluded. BRA is smaller on the summer solstice than on the spring or autumnal equinox. In order to reduce BRA, a passive design approach was applied by tilting or rotating walls to evaluate how the tilted angles or orientation of the façade could affect reflected glare.
keywords	Reflection Glare, Visualization
series	eCAADe
email
last changed	2022/06/07 07:56

_id	ascaad2006_paper28
id	ascaad2006_paper28
authors	Shih, Naai-Jung and Pin-Hung Wang
year	2006
title	Visualization Management and Inspection for Plumbing Construction Quality Control
source	Computing in Architecture / Re-Thinking the Discourse: The Second International Conference of the Arab Society for Computer Aided Architectural Design (ASCAAD 2006), 25-27 April 2006, Sharjah, United Arab Emirates
summary	This research compares the working process at a construction site with the shop drawings made by a plumbing inspector for installed pipes. This study compared the 2D plumbing shop drawings with the 3D point cloud of the toilet in a campus building. A long-range 3D scanner was used to retrieve the point cloud records of pipes to build a visualization management system. The visual comparison was used to locate pipes at the construction site. We found the differences could be identified easily between the point cloud and shop drawings. The presence of point clouds created a new method to inspect plumbing locations, as a way to verify construction quality.
series	ASCAAD
email
last changed	2007/04/08 19:47

_id	f899
authors	Shih, Naai-Jung and Wang, Pin-Hung
year	2002
title	The Application of Reverse Engineering for Building Construction Management
doi	https://doi.org/10.52842/conf.ecaade.2002.338
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 338-341
summary	This research utilizes a 3D laser scanner to retrieve 3D digital information of a building construction site for the management purpose. The concept of reverse engineering is applied as a method in revealing potential problems in building construction process through the analysis of 3D data. This study presents construction images, scanned point-cloud sets, and output rapid prototyping (RP) models as exemplification.
series	eCAADe
email
last changed	2022/06/07 07:59

_id	ac52
authors	Shih, Naai-Jung and Yan, Chie-Shan
year	1997
title	A Study of the Location of Fire Egress Signs by VR Simulation
source	CAAD Futures 1997 [Conference Proceedings / ISBN 0-7923-4726-9] München (Germany), 4-6 August 1997, pp. 311-316
summary	The purpose of this paper is to present a suggestion for the location of fire egress signs along a corridor in a building. The suggestion is made based on a virtual reality simulation of human behavior while rooms are on fire, particularly in a public Karaoka TV entertainment center (KTV). Both the rooms and smoke were modeled to simulate similar situations in which people were asked to find their routes to an egress. Case studies were made of the occurrence of two local severe fire disasters, the official investigation of damages, and related building codes. The simulation concluded that the traditional designation of egress signs at a higher location or just above the door frame may be not function appropriately in indicating the location of exit in case of fire. Since smoke is usually lighter than air and is accumulated closer to the ceiling level, either human vision or egress signs are very likely to be blocked by the darkness of smoke. Vision is additionally restricted because people are suggested to lower their body position to avoid smoke while escaping. Suggestion of alternate location of signage is also made in the research.
series	CAAD Futures
email
last changed	1999/04/06 09:19

_id	8ac3
authors	Shih, Naai-Jung and Yang, Chih-Hsiang
year	1999
title	A VR-Based Preference Study on the Selection of Egress Route in Evacuation
doi	https://doi.org/10.52842/conf.caadria.1999.063
source	CAADRIA '99 [Proceedings of The Fourth Conference on Computer Aided Architectural Design Research in Asia / ISBN 7-5439-1233-3] Shanghai (China) 5-7 May 1999, pp. 63-70
summary	This preliminary study tried to characterize an occupantÌs preference in egress route selection, with/out signage and smoke. In a VR simulation conducted in a public space, six types of egress routes were categorized and exemplified based upon the width of the corridor, fillet corner, or the intersection of two corridors.
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	ab60
authors	Shih, Naai-Jung
year	1993
title	Planning Automation with a Relational Matrix
doi	https://doi.org/10.52842/conf.ecaade.1993.x.h8p
source	[eCAADe Conference Proceedings] Eindhoven (The Netherlands) 11-13 November 1993
summary	The purpose of this paper is to present a relational matrix of process, demands, and tools in automation as a framework in CAD education. Automating process is a closely related sequence of steps from clarifying demands, evaluating tools, operating study, purchasing equipment, training, maintaining, to renewing outdated equipment. Demands reflect a firm's expectation. Clarifying CAD demands is the first step in automating process, and clarified demands explicitly define the goal for automation. The demands include amount of work, content of changes, drawing specification, drawing generating process, data exchange, error-proving procedure, equipment management, training plans, etc. Proper selected tools facilitate automation process and ensure the efficiency and effectiveness in fulfilling a firm's demands. The selection is made according to the considerations associated with software, operating system, and hardware. In order to promote the CAD education in a new era, this matrix is introduced as a framework of automation.
series	eCAADe
last changed	2022/06/07 07:50

_id	ad9c
authors	Wang, Pin-Hung and Shih, Naai-Jung
year	2002
title	A preliminary application of a PDA-based OODB system for construction information management
doi	https://doi.org/10.52842/conf.ecaade.2002.306
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 306-309
summary	This research applies Object Oriented Database (OODB) to relate and link building drawings and texts for the purpose of creating a PDA-based systemetic integration of construction-related design data. This system tries to solve the problems of data segmentation, inexpedient interrogation, and consistency in working drawing information management. Recently development of PDA has accelerated and functionally diversified. Under the speed of development, supervisions of construction projects can be conducted by PDA as a kind of tool as a primary information supplier or manager.
series	eCAADe
email
last changed	2022/06/07 07:58

_id	ddss2004_ra-293
id	ddss2004_ra-293
authors	Chang, T.-W.
year	2004
title	Supporting Design Learning with Design Puzzles
source	Van Leeuwen, J.P. and H.J.P. Timmermans (eds.) Recent Advances in Design & Decision Support Systems in Architecture and Urban Planning, Dordrecht: Kluwer Academic Publishers, ISBN: 1-4020-2408-8, p. 293-307
summary	The design process is a puzzle-solving process. Two groups of researches that share many similarities with Puzzle-solving design process are the process of game-playing and playful learning. The main argument is using the “playing” characteristics to amplify and explore the learning process, furthermore the design process. In addition, puzzles imply playful exploration that utilizes the characteristics of “playing a game” as “solving a puzzle”. Puzzle making and puzzle solving provides an incremental exploration mechanism that is more intuitive for design learning. For understanding and realizing puzzles in design learning, this research is divided into two stages of researches—manual design puzzles and interactive design puzzles. By analysing the outcome from manual design puzzles, this research proposes a framework called (interactive) “design puzzles”. The conceptual and implementation framework of this view of design is elaborated in this paper as well as a particular design puzzle called puzzle collage is described as the realization of design puzzles.
keywords	Design Puzzles, Design Collage, Puzzle-Making, Andragogy, Game Play
series	DDSS
last changed	2004/07/03 22:13

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