TY  - CHAP
A1  - Berkhahn, Volker
A1  - Kinkeldey, Christoph
A1  - Schleinkofer, Matthias
T1  - Re-Engineering Based on Construction Drawings - From Ground Floor Plan to Product Model
N2  - For the management or reorganisation of existing buildings, data concerning dimensions and construction are necessary. Often these data are given exclusively by paper-based drawings and no digital data such as a computer based product model or even a CAD-model are available. In order to perform mass calculation, damage mapping or a recalculation of the structure these drawings of the building under consideration have to be analysed manually by the engineer. This is a very time-consuming job. In order to close this gap between drawings of an existing building and a digital product model an approach is presented in this paper to digitise a drawing, to build up geometric and topologic models and to recognise construction parts of the building. Finally all recognised parts are transformed into a three-dimensional geometric model which provides all necessary geometric information for the product model. During this import process the semantics of a ground floor plan has to be converted into a 3D-model.
KW  - Architektur
KW  - Verteiltes System
KW  - Dreidimensionales CAD
KW  - Produktmodell
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1832
ER  - 
TY  - CHAP
A1  - Kitagawa, Estuji
A1  - Tanaka, Shigenori
A1  - Furuta, Hitoshi
T1  - A research about the automatic construction of Web/3D model house from 2D digital pictures
N2  - In recent years, the survey is performed for repair, such as a bridge and a building built in past, spending great expense. And it is anxious for the survey technique that doesn’t need cost and time more. Then, we made an idea of the technique of precise 3D model creation by 2D pictures. However, the technique of performing the improvement in accuracy of convergent photographing and automatic acquisition of corresponding points was not established. Therefore, in this research, we try to obtain a semi-automation of corresponding points acquisition from initial corresponding points and the improvement in accuracy of convergent photographing. Moreover, we applied the research to the used house of Japanese real estate, and the applicable field was selected as the high needs of the residence of 3D model. And we developed the system that everyone could create Web / 3D model house by VRML easily without requiring expensive apparatuses or expertise.
KW  - Architektur
KW  - Verteiltes System
KW  - Dreidimensionales CAD
Y1  - 2004
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20111215-1702
ER  -