This article reports on the advances of the computer animation in Japan. Japanese animators continue to produce thousands of hours of 2D cartoons every year. Japan's traditional pictorial language is well suited t...
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This article reports on the advances of the computer animation in Japan. Japanese animators continue to produce thousands of hours of 2D cartoons every year. Japan's traditional pictorial language is well suited to the visual immediacy of animation. Furthermore, Japanese animation is notable for its dynamic calligraphic style. The continuing focus of Japan on 2D has not hurt the Japanese animation industry. In fact, 60 percent of all cartoons shown on television screens around the world are made in Japan.
This thesis focuses on the development of an easy to use real-time 3D human facial expression and animation system driven entirely by Facial Action Coding System developed by psychologists Paul Ekman and Wallace Fries...
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This thesis focuses on the development of an easy to use real-time 3D human facial expression and animation system driven entirely by Facial Action Coding System developed by psychologists Paul Ekman and Wallace Frieson in 1977 [1]. The Waters muscle based facial model [2] has been used and extended to allow the user to calibrate the facial deformations illustrated by examples images of each AU in [3]. This becomes the basis of the facial expression creation. Our facial model is then animated in a physics-based manner by use of muscle contractions that in turn cause deformations on the facial geometry; the simulation is efficient enough to be rendered real-time on current PC hardware.
Due to its realistic appearance, computational convenience, and efficient Monte Carlo sampling, Ward's anisotropic BRDF is widely used in computer graphics for modeling specular reflection. Incorporating the criti...
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For more than 15 years, the interest for PCL (Passive Coherent Location) system has been growing. It began with the analog waveforms like TV [1] and FM [2,3];now the interest for digital waveform has increased [2, 4] ...
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Light transport is often characterized within a high-dimensional space although practitioners have long known that it commonly behaves as a much lower-dimensional phenomenon. We study the effective dimension of light ...
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This paper proposes a method for efficiently rendering indirect highlights. Indirect highlights are caused by the primary light source reflecting off two or more glossy surfaces. Accurately simulating such highlights ...
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There are many geometric algorithms based on computation of intersection of lines, planes etc. Sometimes, very complex mathematical notations are used to express simple mathematical solutions, even if their formulatio...
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ISBN:
(纸本)9789604742103
There are many geometric algorithms based on computation of intersection of lines, planes etc. Sometimes, very complex mathematical notations are used to express simple mathematical solutions, even if their formulation in the projective space offers much more simple solution. This paper presents solution of selected problems using principle of duality and projective space representation. It will be shown that alternative formulation in the projective space offers quite surprisingly simple solutions that lead to more robust and faster algorithms which are convenient for use within parallel architectures as GPU (Graphical Processor Units- NVIDIA-TESLA/Fermi) or SCC (Intel-Single-chip Cloud Computing), which can speed up solutions of numerical problems in magnitude of 10-100. It is shown that a solution of a system of linear equations is equivalent to generalized cross product, which leads with the duality principle to new algorithms. This is presented on a new formulation of a line in 3D given as intersection of two planes which is robust and fast, based on duality of Plücker coordinates. The presented approach for intersection computation is well suited especially for applications where robustness is required, e.g. large GIS/CAD/CAM systems etc.
作者：
Laiche, NacéraLRIA
Computer Department University of Science and Technology Algiers Algeria
In this paper, we present a new approach to represent and recognize two-dimensional views of the objects using contour features. The external outline of the object is decomposed into portions of curves at the concavit...
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Today digital videos are increasingly being used in many sensitive as well as commercial applications such as military secrets and corporate product designs. The secure sharing of these videos is of utmost importance....
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Today digital videos are increasingly being used in many sensitive as well as commercial applications such as military secrets and corporate product designs. The secure sharing of these videos is of utmost importance. Traditional encryption methods do not guarantee perfect security and the secret can be revealed just by obtaining the decryption key. On the other hand, Shamir's secret sharing scheme has been widely used for secret image sharing, however it has never been explored for secret video sharing. In this paper, we present a method to share a video using Shamir's secret sharing scheme. The proposed method utilizes the temporal redundancy in videos and is computationally efficient. Experimental results show the utility of the proposed method.
We present a new approach aimed at understanding the structure of connections in edge-bundling layouts. We combine the advantages of edge bundles with a bundle-centric simplified visual representation of a graph's...
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