Based on the architectural survey project of "the Chi Lin Nunnery Redevelopment "in Hong Kong,this paper attempts to investigate the techniques of building 3D digital document of large_scale timber structure...Based on the architectural survey project of "the Chi Lin Nunnery Redevelopment "in Hong Kong,this paper attempts to investigate the techniques of building 3D digital document of large_scale timber structure and quality control during construction by computer_based 3D simulation for the whole project.There were several key issues including primary data acquisition,3D modeling and display,pre_assembling the total building and quality examination,etc.In this paper,some useful experiments,such as the new applications of CCD digital cameras,image and graph processing software packages (CAD,Photoshop,Photomodeler,Vexcel,etc.) to the architectures are also presented.These methods introduced in this paper are suitable for image and graph integrated database building of complicated architectures,and useful for conveniently maintaining and reconstructing the ancient architectures.展开更多
With the development of mining industry,people have obtained profits from it,but they are facing environmental damages.In order to monitor these environmental changes,a spectral library is set up for the spectrum data...With the development of mining industry,people have obtained profits from it,but they are facing environmental damages.In order to monitor these environmental changes,a spectral library is set up for the spectrum data organization and management of mine typical objects.Most of the spectrum data come from the long-term field measuring in mining area and other spectral libraries.For the data quality control and error detection in the measuring data,an inner precision calculation method is presented and a series of interactive graphical controls are developed for the spectrum visualization and analysis.Through extracting and saving spectrum characters for the mine typical objects,realizs spectrum matching and classification for new measured spectrum samples are realized by using Euclidean distance,Aitchison distance,Pearson correlation coefficient and vector angular cosine methods.Based on the matching result,this work is able to gather dynamically physicochemical environment parameters from the library and gives an early warning for the mine environmental changes.展开更多
文摘Based on the architectural survey project of "the Chi Lin Nunnery Redevelopment "in Hong Kong,this paper attempts to investigate the techniques of building 3D digital document of large_scale timber structure and quality control during construction by computer_based 3D simulation for the whole project.There were several key issues including primary data acquisition,3D modeling and display,pre_assembling the total building and quality examination,etc.In this paper,some useful experiments,such as the new applications of CCD digital cameras,image and graph processing software packages (CAD,Photoshop,Photomodeler,Vexcel,etc.) to the architectures are also presented.These methods introduced in this paper are suitable for image and graph integrated database building of complicated architectures,and useful for conveniently maintaining and reconstructing the ancient architectures.
基金Supported by the National Key Technology R&D Program of China(No.2012BAH27B04,2011BAC03B03)the National Natural Science Foundation of China(No.41471330)+1 种基金Research Fund for the Doctoral Program of Higher Education of China(20113718110001)SDUST Research Fund(2011KYTD103)
文摘With the development of mining industry,people have obtained profits from it,but they are facing environmental damages.In order to monitor these environmental changes,a spectral library is set up for the spectrum data organization and management of mine typical objects.Most of the spectrum data come from the long-term field measuring in mining area and other spectral libraries.For the data quality control and error detection in the measuring data,an inner precision calculation method is presented and a series of interactive graphical controls are developed for the spectrum visualization and analysis.Through extracting and saving spectrum characters for the mine typical objects,realizs spectrum matching and classification for new measured spectrum samples are realized by using Euclidean distance,Aitchison distance,Pearson correlation coefficient and vector angular cosine methods.Based on the matching result,this work is able to gather dynamically physicochemical environment parameters from the library and gives an early warning for the mine environmental changes.
