In this paper we present an approach for animating a virtual hand model withthe animation data extracting from hand tracking results. We track the hand by using particle filters and deformable contour templates w...
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In this paper we present an approach for animating a virtual hand model withthe animation data extracting from hand tracking results. We track the hand by using particle filters and deformable contour templates with a web camera;then we extend the 2D tracking results into 3D animation data using inverse kinematics method;finally, local frame based method is proposed to simulate a 3D virtual hand withthe 3d animation data. Our system performs in real time.
the aim of this study is to investigate the capability of the micropolar peridynamic theory to analyze elastic behavior of plates with various length and width. Since the quantities such as stress and strain are relat...
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ISBN:
(纸本)9780791849187
the aim of this study is to investigate the capability of the micropolar peridynamic theory to analyze elastic behavior of plates with various length and width. Since the quantities such as stress and strain are related to displacement field, only the displacement fields of these structures are computed using the micropolar peridynamic model while Poisson's ratios are kept constant. the results are compared both to the analytical solution of the classical elasticity theory and to the solution of displacement based finite element methods. the software package ANSYS is used for FEM results. To compute the displacement field, a programming code is developed using MAthEMATICA. In the peridynamic theory the constitutive model contains only central forces and can be applied only to the materials having 1/4 Poisson's ratio. It is the biggest shortcoming of the peridynamic theory. To overcome strict Poisson's ratio limitation of the peridynamic theory, the micropolar peridynamic theory is proposed. the micropolar peridynamic model allows peridynamic moments, in addition to peridynamic central forces, to interact withthe particles inside the material horizon. the introduction of the moments to the theory allows us to deal withthe materials having Poisson's ratio different from 1/4. this modification can be seen as the generalization of the peridynamic theory. Furthermore, the micropolar peridynamic theory can be easily implemented using the finite element methods. this provides easy application of the boundary conditions to the physical model in hand. In this work, by applying the micropolar peridynamic theory, we observed that the displacement fields of the plates are strongly affected by dimensional ratio of the plates. However, it is naturally expected that the micropolar and classical theories should give the same results, at least to a certain extend. this strong dependability on the dimensions of the structure can be a significant shortcoming of the micropolar peridy
It is a research hotspot to construct a distributed, multi-users shared 3D virtual environment on the internet. In this way, multiple users in different geographical regions will share a real-time interactive virtua...
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It is a research hotspot to construct a distributed, multi-users shared 3D virtual environment on the internet. In this way, multiple users in different geographical regions will share a real-time interactive virtual environment through internet in simultaneous. Based on VRML and Java3D technology, this paper proposes an interactive means which constructs distributed 3D virtual environment, as well as a synchronization solution between the scene environment and user state. the means also gives a good guide to resolve existing problems in current distributed 3D virtual technology.
the 1957 film Pontianak (produced by Cathay-Keris Films, directed by B.N Rao and starring Maria Menado) was a highly successful horror film and very much a product of the Malay-language film industry that was based in...
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ISBN:
(纸本)9783030955311;9783030955304
the 1957 film Pontianak (produced by Cathay-Keris Films, directed by B.N Rao and starring Maria Menado) was a highly successful horror film and very much a product of the Malay-language film industry that was based in Singapore from the 1940s to the 1960s. However, this 'classic' film (along with one of its sequels) is now considered to be lost. For our research into the possibilities of virtual cinematic heritage, we researched scenes and sequences from the film withthe aim to imaginatively 'reenact' them as a virtual reality experience. In this paper, we evaluate the creative and technical processes involved in executing such a project, demonstrating the different strategies deployed and their various outcomes. One key issue discussed is whether affordable motion capture systems are viable alternatives to capture performance for virtual heritage applications. We summarise the current status of the project and propose some possible pathways for future development.
the multiple ways in which we rely on the information available on the web to solve increasingly more tasks encountered in day-to-day life has led to the question whether machines can help us parse the amounts of data...
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ISBN:
(纸本)9789898111401
the multiple ways in which we rely on the information available on the web to solve increasingly more tasks encountered in day-to-day life has led to the question whether machines can help us parse the amounts of data and bring the interesting closer to us. this kind of activity, most often, requires machines to understand human defined semantics which, fortunately, can be easily done in today's web through semantic mark-up. the purpose of the proposed project is to build a flexible tool that understands the behaviour of a user on the web and filters out the irrelevant data, presenting to the user only the information he/she is most interested in, while being as discreet as possible: the user is required no preference settings, no explicit feedback.
Location-based services (LBSs) that collect and utilize location data in real time through mobile devices have been widely used recently. LBSs use a clustering algorithm to extract a user’s point of interest (POI) fr...
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In this paper we generalize the shortest path algorithm to the shortest cycles in each homotopy class on a surface with arbitrary topology,utilizing the universal covering space (UCS) in algebraic *** order to store a...
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In this paper we generalize the shortest path algorithm to the shortest cycles in each homotopy class on a surface with arbitrary topology,utilizing the universal covering space (UCS) in algebraic *** order to store and handle the UCS,we propose a two-level data structure which is efficient for storage and easy to *** also pointed several practical applications for our shortest cycle algorithms and the UCS data structure.
this article discusses the inherent relation between image plans and business management from the point that the structure of corporate and brand identity is an important step to establish the whole image. the aim ...
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this article discusses the inherent relation between image plans and business management from the point that the structure of corporate and brand identity is an important step to establish the whole image. the aim is to expound and prove that the factor of image construction derives from the composition of corporate organization and product exploitation strategy through analyzing the peculiarities and functions of several kinds of image structures. A reasonable image structure should not only indicate how the corporate is organized but also aim at how to bring about communicational advantage.
Learning of physics always related to conceptual understanding. In the learning process, there can be a difference in conceptual understanding that causes misconceptions. Misconceptions can occur in a variety of physi...
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In this paper, an algorithm for extracting keywords without corpus is described We use the co-occurrence information of the words and the biases of distribution to extract the more important words based on the mos...
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In this paper, an algorithm for extracting keywords without corpus is described We use the co-occurrence information of the words and the biases of distribution to extract the more important words based on the most frequently appearing words so called reference words. Firstly, the most frequently terms are chosen from the document. then due to keywords have a non-linear relationship withthe set *** terms, the bias between words in documents and reference terms is measured At last we prove that the algorithm is effective.
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