摘要 :
With the increasing of the complexity of 3D models, traditional triangle-based rendering cannot suit the need of real-time rendering. PBR is regarded seriously recent years for its fast rendering speed. But current PBR techniques ...
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With the increasing of the complexity of 3D models, traditional triangle-based rendering cannot suit the need of real-time rendering. PBR is regarded seriously recent years for its fast rendering speed. But current PBR techniques all use consecutive LOD, they cost much time on judging. This paper presents a novel PBR method which use discrete LOD..
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摘要 :
With the increasing of the complexity of 3D models, traditional triangle-based rendering cannot suit the need of real-time rendering. PBR is regarded seriously recent years for its fast rendering speed. But current PBR techniques ...
展开
With the increasing of the complexity of 3D models, traditional triangle-based rendering cannot suit the need of real-time rendering. PBR is regarded seriously recent years for its fast rendering speed. But current PBR techniques all use consecutive LOD, they cost much time on judging. This paper presents a novel PBR method which use discrete LOD..
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摘要 :
With the improvement of computer graphic hardware capability, the algorithm of 3D terrain rendering is going into the hot topic of real-time visualization. In order to solve conflict between the rendering speed and reality of rend...
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With the improvement of computer graphic hardware capability, the algorithm of 3D terrain rendering is going into the hot topic of real-time visualization. In order to solve conflict between the rendering speed and reality of rendering, this paper gives an improved method of terrain rendering which improves the traditional continuous level of detail technique based on fractal theory. This method proposes that the program needn't to operate the memory repeatedly to obtain different resolution terrain model, instead, obtains the fractal characteristic parameters of different region according to the movement of the viewpoint. Experimental results show that the method guarantees the authenticity of landscape, and increases the real-time 3D terrain rendering speed.
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摘要 :
With the improvement of computer graphic hardware capability, the algorithm of 3D terrain rendering is going into the hot topic of real-time visualization. In order to solve conflict between the rendering speed and reality of rend...
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With the improvement of computer graphic hardware capability, the algorithm of 3D terrain rendering is going into the hot topic of real-time visualization. In order to solve conflict between the rendering speed and reality of rendering, this paper gives an improved method of terrain rendering which improves the traditional continuous level of detail technique based on fractal theory. This method proposes that the program needn't to operate the memory repeatedly to obtain different resolution terrain model, instead, obtains the fractal characteristic parameters of different region according to the movement of the viewpoint. Experimental results show that the method guarantees the authenticity of landscape, and increases the real-time 3D terrain rendering speed.
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摘要 :
With the improvement of computer graphic hardware capability, the algorithm of 3D terrain rendering is going into the hot topic of real-time visualization. In order to solve conflict between the rendering speed and reality of rend...
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With the improvement of computer graphic hardware capability, the algorithm of 3D terrain rendering is going into the hot topic of real-time visualization. In order to solve conflict between the rendering speed and reality of rendering, this paper gives an improved method of terrain rendering which improves the traditional continuous level of detail technique based on fractal theory. This method proposes that the program needn't to operate the memory repeatedly to obtain different resolution terrain model, instead, obtains the fractal characteristic parameters of different region according to the movement of the viewpoint. Experimental results show that the method guarantees the authenticity of landscape, and increases the real-time 3D terrain rendering speed.
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The current increase in the publication of "Open Access" data has greatly facilitated the emergence of initiatives to provide users with information from different areas of expertise. Particularly, DBPedia has attracted the intere...
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The current increase in the publication of "Open Access" data has greatly facilitated the emergence of initiatives to provide users with information from different areas of expertise. Particularly, DBPedia has attracted the interest from several organizations and entities involved in the hosting, processing and display of large amounts of data, willing to openly share them. However, the vast amount of information presented today makes it necessary to provide more interfaces that facilitate this task, taking into account the peculiarities of this technology. The following article presents the results of evaluation of a visual interface prototype that facilitates search, display and visualization of organizations classified by their domain in the Linking Open Data (LOD) cloud.
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By avoiding the 'data not invented here' syndrome (NIH) (Data not invented here (NIH) syndrome is a mindset that consists in focusing solely on using data created inside the walls of a business), companies realized the benefit of ...
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By avoiding the 'data not invented here' syndrome (NIH) (Data not invented here (NIH) syndrome is a mindset that consists in focusing solely on using data created inside the walls of a business), companies realized the benefit of including external sources in their data cube. In this context, Linked Open Data (LOD) is a promising external source that may contain valuable data and query-logs materializing the exploration of data by end users. Paradoxically, the dataset of this external source is structured whereas logs are "ugly", and in the case, they are turned into rich structured data, they will contribute to building valuable data cubes. In this paper, we claim that the NIH syndrome must be also considered for query-logs. As a consequence, we propose an approach that investigates the particularity of SPARQL query logs performed on the LOD and augmented by the LOD to discover multidimensional patterns when leveraging and enriching a data cube. To show the effectiveness of our approach, different scenarios are proposed and evaluated using Dbpedia.
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摘要 :
By avoiding the 'data not invented here' syndrome (NIH) (Data not invented here (NIH) syndrome is a mindset that consists in focusing solely on using data created inside the walls of a business), companies realized the benefit of ...
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By avoiding the 'data not invented here' syndrome (NIH) (Data not invented here (NIH) syndrome is a mindset that consists in focusing solely on using data created inside the walls of a business), companies realized the benefit of including external sources in their data cube. In this context, Linked Open Data (LOD) is a promising external source that may contain valuable data and query-logs materializing the exploration of data by end users. Paradoxically, the dataset of this external source is structured whereas logs are "ugly", and in the case, they are turned into rich structured data, they will contribute to building valuable data cubes. In this paper, we claim that the NIH syndrome must be also considered for query-logs. As a consequence, we propose an approach that investigates the particularity of SPARQL query logs performed on the LOD and augmented by the LOD to discover multidimensional patterns when leveraging and enriching a data cube. To show the effectiveness of our approach, different scenarios are proposed and evaluated using Dbpedia.
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Streaming of 3D data sets is a key technology for remote rendering and visualization of huge and complex geometrical models like large scale city models. Even with high speed network it is still difficult to share the 3D informati...
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Streaming of 3D data sets is a key technology for remote rendering and visualization of huge and complex geometrical models like large scale city models. Even with high speed network it is still difficult to share the 3D information of a city scene among different users. In our work, we have devised a new data representation mechanism and transmission scheme to render the 3D models with less content and less computational cost. Our approach uses light weight building geometry and multi-level textured LOD representation to transmit data via streaming. In addition, we suggest a technique for rendering with selective LODs by emphasizing the regions of interest (ROIs) depending on the importance of the building for a specific user. The LOD distribution is updated over the ROI as the gaze point of the viewer moves over the model surfaces. Preliminary tests and evaluations reveal the feasibility of our method to be extended to large scale mobile applications.
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摘要 :
Streaming of 3D data sets is a key technology for remote rendering and visualization of huge and complex geometrical models like large scale city models. Even with high speed network it is still difficult to share the 3D informati...
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Streaming of 3D data sets is a key technology for remote rendering and visualization of huge and complex geometrical models like large scale city models. Even with high speed network it is still difficult to share the 3D information of a city scene among different users. In our work, we have devised a new data representation mechanism and transmission scheme to render the 3D models with less content and less computational cost. Our approach uses light weight building geometry and multi-level textured LOD representation to transmit data via streaming. In addition, we suggest a technique for rendering with selective LODs by emphasizing the regions of interest (ROIs) depending on the importance of the building for a specific user. The LOD distribution is updated over the ROI as the gaze point of the viewer moves over the model surfaces. Preliminary tests and evaluations reveal the feasibility of our method to be extended to large scale mobile applications.
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