Academic journal article Journal of Digital Information Management

Special Issue on Cultural Heritage and Architecture 3D

Academic journal article Journal of Digital Information Management

Special Issue on Cultural Heritage and Architecture 3D

Article excerpt

Architecture, for each one of its acivities, has a great demand for documenting and archiving a lot of layouts and maps. Progress in digital 31) and images creates background for replacing drawings of artifacts locations with high resolution digital photos and fast development of close range photogrammetric techniques allows producing virtual 3D creation of architecture heritage. The capability of reconstructing virtual 3D models of valuable architectures finds and their wide availability for studying directly or via Internet creates new environment for historians and architects.

Unfortunately 3D scanning of architecture objects is still rather expansive in most cases mainly in historical towns where we found many narrow streets. This special issue overviews advanced methods and systems which can be successfully applied for cultural architecture archiving.

The main requirements for 3D reconstruction system to be used for architecture 3D documenting are the following:

* Metric characteristics of produced virtual architecture finding providing the possibility of performing some necessary measurements by expert for his investigation

* Photorealistic 3D model texturing providing adequate visual presentation of virtual 3D model for an expert or an virtual tourist

* High productivity (short time of 3D model generation)

* High degree of automation

* Simplicity of installation and calibration

* Low cost

Laser scanning of historic buildings and set of culture heritage sites should not be regarded solely as the means of recording, but it should be widely applied to the development of 3D digital archives. 3D archive does not only bring efficiency to conventional contents such as drawings and structures analyses, but also make the management of whole attribute information such as components, breakage parts and repair parts possible.

Moreover, 3D technology indicates various future possibilities in the conservation of historic buildings. The simulation of restoration using 3D data obtained by laser scanning will greatly advance the ways of restoration from conventional ones like models and perspective drawings. It will also provide a great visualization method when it is applied to virtual reality that can offer real-time change of views and free movement. It is desirable that the 3D data should be obtained periodically in order to find changes in cultural properties, and the obtained data should be stored as a database so that they are available at any time necessary for various uses. The accumulation of the data will help restoration activities against unforeseen crises for cultural properties such as natural disasters.

This special issue overviews the most recent tools in the area of architectural documentation of the form and the color and to study forms of representation that may be alternative or complementary to traditional ones with a view to building a system of documentation and knowledge focused and structured in accordance with the characteristics of the culture heritage buildings.

The need for digital documentation, together with the possibility of computer management of the 3D models, seems to be shifting the discipline towards a co-existence of the traditional static representations and the dynamic models. This conflicts with the needs of designers to have two-dimensional supports that, as we know, represent a spatial and functional model of the architecture. One solution would seem to be to bring together innovative concepts with the traditional methods, in other words, bringing together 3D digital models and orthogonal projections.

Among the newest techniques that provide a deeper understanding of the works, the scientific management of color is surely important and closely related to modeling. The importance of photography in architectural documentation is widely recognize: just think of the desire to document materials (stone, metal, glass, concrete and wood components) and their state of conservation. …

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