著者

中林 拓馬 江原 司 加戸 啓太 平沢 岳人

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.76, no.667, pp.1753-1759, 2011-09-30 (Released:2012-01-13)

参考文献数

11

被引用文献数

2

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The authors conducted a study aiming at applying Augmented Reality technology in the field of architecture. There are some problems in the method of marker tracking when it is applied in the field of architecture. The authors groped the solutions which don't depend only on the method of marker tracking. The solution for indoor uses a 3-axis orientation sensor and marker tracking. The solution for outdoor uses a 3-axis orientation sensor and RTK-GPS. In this paper, how the system was implemented and evaluated is described in detail.

著者

加戸 啓太 青野 敏紀 平沢 岳人

出版者

日本建築学会

雑誌

日本建築学会計画系論文集 (ISSN:13404210)

巻号頁・発行日

vol.82, no.742, pp.3259-3268, 2017 (Released:2017-12-30)

参考文献数

13

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Visual programming has quickly become widely used tool for algorithmic design in the past several years. Because the contents of visual programming are easy to understand and intuitive, it is also leveraged for describing design process. On the other hand, the authors studied 3D based knowledge representation for traditional wooden architecture or wooden skeleton structures houses. In previous studies, detailed 3D models could be created using parametric part classes which were defined with text programming; however, contents in the part classes were complicated and unsuitable for sharing as knowledge, challenging the requirement that the part classes and parts structure should be represented clearly. In this paper, the authors attempt the executable graphical representation of building system for traditional tokyo-bu by using visual programming. Through the development of a visual programming system, multiple ways of representation are considered. Representation methods with visual programming are studied based on two themes: part class including design method and parts structure. In the study of design method, eight types of components are defined: parameter, variable, vertex, segment, plane, solid, process and func. The components are similar to a craftsman's work. Process components include sawing and chiseling by subtracting solids from a solid. Func components imply drawing practices such as drawing perpendicular bisector or solving intersection of two lines. By using the components and directed connectors which have an entry sequence, the design method for masu and hijiki are descripted graphically. The design method has some inputs for parametric forming. To represent systematized proportionality relations which are typified as kiwari, a base of part class comprises two kinds of information, design method, and its inputs, which are described with parameters and variables. By this composition, part classes for masu, which are based some traditional drafting rules, are represented as organized diagrams. A base of part classes for hijiki, which are based on traditional rules called kansatsu, is also represented. Parts structure based on part classes in the preceding section results in a complex diagram. Many components and connecters are employed for describing the location of each part. It is shown that mistakable redundant description, such as a redefinition of a variable. To solve this issue, the authors incorporate a technique called scene graph. Scene graph is a technique for creating a tree-structured 3D scene. The technique establishes a Parent-child relation, which makes a tree-structure containing relative attitudes and the locations of each part that are calculated by pursuing relations. Relative attitudes to connectible parts type are added to the description of the part classes. Finally, the part class is represented with three kinds of information, design method, its inputs, and contestability. The behavior of a part will be represented by the part class. With these part classes, part structures of tokyo-bu are represented clearly. The representation shows a formal order for dimensions of parts. Connections of each part also illustrate its assembly. Processing systems for visual programming are also shown. It makes the graphical representation executable. The system consists of a visual programming editor, database, for managing components and connectors in editor, and interpreter to convert visual programming into executable scripts. The authors conclude that the part class, including the design method, and the parts structure is clearly represented through visual programming. Executable graphical description with visual programming could be used for knowledge representation for building system.

著者

古庄 玄樹 中村 優介 福本 健人 常國 晋吾 加戸 啓太 平沢 岳人

出版者

一般社団法人 日本建築学会

雑誌

日本建築学会技術報告集 (ISSN:13419463)

巻号頁・発行日

vol.27, no.67, pp.1559-1562, 2021-10-20 (Released:2021-10-20)

参考文献数

7

被引用文献数

1 1

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The conventional workflow for producing wooden parts requires the wood workpiece to be firmly secured in the position predetermined by a processing path generation step. As a result, it is difficult to process curved raw wood pieces using machines. To overcome this difficulty, we developed a single-shot posture estimation technique using pre-reconstructed 3D points and features, as well as a processing path transformation technique that adjusts the path according to the actual posture of the fixed workpiece. A curved beam named “taiko bari” was processed and subsequently tested. The results demonstrated that the proposed techniques are suitable for practical applications.

著者

中林 拓馬 加戸 啓太 平沢 岳人

出版者

日本建築学会

雑誌

日本建築学会技術報告集 (ISSN:13419463)

巻号頁・発行日

vol.17, no.37, pp.1053-1056, 2011-02-20 (Released:2011-10-20)

参考文献数

8

被引用文献数

1 1

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Augmented Reality or Mixed Reality is a technology to extend or enhance human senses by putting the CG which is processed by computer into the real world.The authors developed a tool for architectural design, using AR/MR and scale model. This tool enables the review by superimposing CG on the model. In addition, the authors proposed the solution of the problem of occlusion and optical integrity.In this paper, the authors report implementation details and preliminary experimental results of this tool.

著者

加戸 啓太 平沢 岳人

出版者

一般社団法人日本建築学会

雑誌

日本建築学会技術報告集 (ISSN:13419463)

巻号頁・発行日

vol.14, no.27, pp.307-310, 2008-06-20

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Computer vision is concerned with the theory and technology for robot's eyes that obtain information from images. It focuses on how to reconstruct structure or other information about the 3D scene from one or several images. Tracking is one of the indispensable requirements for computer vision system and is responsible for registering the virtual world in the real world. The authors select a marker-based tracking method, which computes the location such as position and orientation of a square marker in physical space out of an image captured by a camera. In this paper, the authors would like to propose some applied tools for construction industry.