Volume 20 (2001): Recent submissions
Now showing items 61-80 of 88
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Integrating Behavioural Animation Techniques
(Blackwell Publishers Ltd and the Eurographics Association, 2001)Our research focuses on animating autonomous virtual humans which are able to take decisions by themselves. We especially address in this paper the technical problem of integrating altogether the physical simulation of ... -
A low cost 3D scanner based on structured light
(Blackwell Publishers Ltd and the Eurographics Association, 2001)Automatic 3D acquisition devices (often called 3D scanners) allow to build highly accurate models of real 3D objects in a cost- and time-effective manner. We have experimented this technology in a particular application ... -
Global Illumination as a Combination of Continuous Random Walk and Finite-Element Based Iteration
(Blackwell Publishers Ltd and the Eurographics Association, 2001)The paper introduces a global illumination method that combines continuous and finite-element approaches, pre-serving the speed of finite-element based iteration and the accuracy of continuous random walks. The basic idea ... -
Incremental Updates for Rapid Glossy Global Illumination
(Blackwell Publishers Ltd and the Eurographics Association, 2001)We present an integrated global illumination algorithm including non-diffuse light transport which can handle complex scenes and enables rapid incremental updates. We build on a unified algorithm which uses hierarchical ... -
An Adaptive Method for Indirect Illumination Using Light Vectors
(Blackwell Publishers Ltd and the Eurographics Association, 2001)In computer graphics, several phenomema need to be taken into account when it comes to the field of photo-realism. One of the most relevant is obviously the notion of global, and more precisely indirect, illumination. In ... -
Fast Cloth Animation on Walking Avatars
(Blackwell Publishers Ltd and the Eurographics Association, 2001)This paper describes a fast technique for animating clothing on walking humans. It exploits a mass-spring cloth model but applies a new velocity directional modification approach to overcome its super-elasticity. The ... -
Interactive Computer Animation of Hand Gestures using Status Estimation with Multiple Regression Analysis
(Blackwell Publishers Ltd and the Eurographics Association, 2001)This paper presents a method of interactively generating natural hand gesture animation using reduced dimensionality from multiple captured data sequences of finger motions conducting specific tasks. This method is achieved ... -
Artist-Directed Inverse-Kinematics Using Radial Basis Function Interpolation
(Blackwell Publishers Ltd and the Eurographics Association, 2001)One of the most common tasks in computer animation is inverse-kinematics, or determining a joint configuration required to place a particular part of an articulated character at a particular location in global space. ... -
Rendering Pearlescent Appearance Based On Paint-Composition Modelling
(Blackwell Publishers Ltd and the Eurographics Association, 2001)We describe a new approach to modelling pearlescent paints based on decomposing paint layers into stacks of imaginary thin sublayers. The sublayers are chosen so thin that multiple scattering can be considered across ... -
Flexible Image-Based Photometric Reconstruction using Virtual Light Sources
(Blackwell Publishers Ltd and the Eurographics Association, 2001)Photometric reconstruction is the process of estimating the illumination and surface reflectance properties of an environment, given a geometric model of the scene and a set of photographs of its surfaces. For mixed-reality ... -
Automatic Lighting Design using a Perceptual Quality Metric
(Blackwell Publishers Ltd and the Eurographics Association, 2001)Lighting has a crucial impact on the appearance of 3D objects and on the ability of an image to communicate information about a 3D scene to a human observer. This paper presents a new automatic lighting design approach for ... -
A Dynamic Motion Control Technique for Human-like Articulated Figures
(Blackwell Publishers Ltd and the Eurographics Association, 2001)This paper presents a dynamic motion control technique for human-like articulated figures in a physically based character animation system. This method controls a figure such that the figure tracks input motion specified ... -
A Camera Engine for Computer Games: Managing the Trade-Off Between Constraint Satisfaction and Frame Coherence
(Blackwell Publishers Ltd and the Eurographics Association, 2001)Many computer games treat the user in the "1st person" and bind the camera to his or her view. More sophistication in a game can be achieved by enabling the camera to leave the users' viewpoint. This, however, requires new ... -
Walk-Through Illustrations: Frame-Coherent Pen-and-Ink Style in a Game Engine
(Blackwell Publishers Ltd and the Eurographics Association, 2001)In this paper we show how a game engine designed to generate photorealistic images can be extended to produce non-photorealistic and hybrid renditions. We introduce new hardware-based methods to accomplish pen-and-ink ... -
On-the-Fly Processing of Generalized Lumigraphs
(Blackwell Publishers Ltd and the Eurographics Association, 2001)We introduce a flexible and powerful concept for reconstructing arbitrary views from multiple source images on the fly. Our approach is based on a Lumigraph structure with per-pixel depth values, and generalizes the classical ... -
Interactive Rendering with Coherent Ray Tracing
(Blackwell Publishers Ltd and the Eurographics Association, 2001)For almost two decades researchers have argued that ray tracing will eventually become faster than the rasterization technique that completely dominates todays graphics hardware. However, this has not happened yet. Ray ... -
Perceptually Guided Corrective Splatting
(Blackwell Publishers Ltd and the Eurographics Association, 2001)One of the basic difficulties with interactive walkthroughs is the high quality rendering of object surfaces with non-diffuse light scattering characteristics. Since full ray tracing at interactive rates is usually impossible, ... -
Tour Into the Picture using a Vanishing Line and its Extension to Panoramic Images
(Blackwell Publishers Ltd and the Eurographics Association, 2001)Tour into the picture (TIP) proposed by Horry et al.13 is a method for generating a sequence of walk-through images from a single reference picture (or image). By navigating a 3D scene model constructed from the picture, ... -
Drawing for Illustration and Annotation in 3D
(Blackwell Publishers Ltd and the Eurographics Association, 2001)We present a system for sketching in 3D, which strives to preserve the degree of expression, imagination, and simplicity of use achieved by 2D drawing. Our system directly uses user-drawn strokes to infer the sketches ... -
The Synthesis of Rock Textures in Chinese Landscape Painting
(Blackwell Publishers Ltd and the Eurographics Association, 2001)In Chinese landscape painting, rock textures portray the orientation of mountains and contribute to the atmosphere. Many landscape-painting skills are required according to the type of rock. Landscape painting is the major ...