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Diverse computers interconnected via mixed network equipments are commonly available parallel architecture now, and achieve good performance/price ratio. As an important parallel communication tool, MPI system is a natural choice to support heterogeneous computing platform. The paper classifies the definition of heterogeneity into three categories, and presents the issues of them in detail respectively...
A semi-automatic 3D roof reconstruction method is proposed in this paper. It consists of two components: automatic recognition of 2D plane drawings and interactively ldquopullingrdquo or ldquopushingrdquo the recognized results. Only a limited number of reconstruction operations are needed to generate various types of 3D roofs, making the method efficient.
As a typical type of structured documents, table drawings are widely used in engineering fields. Knowledge extraction of such structured documents plays an important role in automatic interpretation systems. In this paper, we propose a new knowledge extraction method based on automatically analyzing drawing layout and extracting physical or logical structures from the given engineering table drawings...
Many existing 3D reconstruction algorithms either assume a perfect setting or focus only on rebuilding a single object. For architectural drawings, which contain many kinds of abstract information, description formats, and a large number of objects, these algorithms cannot reconstruct 3D models of entire buildings efficiently. This paper presents a new method for 3D reconstruction of buildings through...
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