نتایج جستجو برای: geometry preservation

تعداد نتایج: 217248  

Journal: :International Journal of Computer Applications 2011

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1390

in current study, 63 samples of bat populations collected from differ regions were used for evaluating the geographic variations. twenty cranial and dental characters for traditional morphometric and landmarks method on the ventral, dorsal skull and mandible for geometry morphometric studies were used. statistical analyses of traditional morphometric and geometry morphometric data indicated low...

2001
Carl Vilbrandt Alexander A. Pasko Galina Pasko Janet R. Goodwin James M. Goodwin

The issues of digital preservation of shapes and internal structures of historical and cultural objects are discussed. An overview of existing approaches to computer modeling of shapes is presented and corresponding problems are considered. We propose a digital preservation paradigm quite different from the currently popular "scan and mesh" approach yielding visible surface models. Our approach...

Journal: :Neurocomputing 2021

Detail-and-geometry richness is essential to bas-relief modelling. However, existing image-based and model-based modelling techniques commonly suffer from detail monotony or geometry loss. In this paper, we introduce a new framework for abundance with visual attention based mask generation preservation, which benefits our two key contributions. For richness, propose novel semantic neural networ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

2011
Shashwati Mishra Chittaranjan Pradhan

Manifold learning techniques are used to preserve the original geometry of dataset after reduction by preserving the distance among data points. MDS (Multidimensional Scaling), ISOMAP (Isometric Feature Mapping), LLE (Locally Linear Embedding) are some of the geometrical structure preserving dimension reduction methods. In this paper, we have compared MDS and ISOMAP and considered similarity as...

Journal: :The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2019

2012
Thomas Paviot Virginie Fortineau Samir Lamouri Ludovic Louis-Sidney

In the nuclear industry, achieving Long Term Data Preservation is a requirement for nuclear power plants to be safely built, operated over five or six decades and retired. Among them, CAD data suffers from some strong dependencies on the software vendors and its data model thus leading to a possible weakness in the preservation workflow. This paper presents a modeling language, suitable for the...

2010
Turlif Vilbrandt

The cultural heritage preservation requires that objects persist throughout time to continue to communicate an intended meaning. Digital technology and specifically 3D digital technology is naturally a critical component in preservation. Yet once in the digital world the object's persistence is inextricably linked to data persistence and current 3D technologies do little more than capture a sil...

Journal: :Comput. Graph. Forum 2004
Carl Vilbrandt Galina Pasko Alexander A. Pasko Pierre-Alain Fayolle Turlif Vilbrandt Janet R. Goodwin James M. Goodwin Tosiyasu L. Kunii

Issues of digital preservation of shapes and internal structures of historical cultural objects are discussed. An overview of existing approaches to digital preservation related to shape modeling is presented and corresponding problems are considered. We propose a new digital preservation paradigm based on both constructive modeling reflecting the logical structure of the objects and open stand...

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