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Article
B-spline surface fitting to mesh vertices
通过拟合离散数据构造 B 样条曲面的方法在 CAD 领域中广泛应用。 本文提出一种使用层次化结构的多张 B 样条曲面拟合网格模型的方法。 对于较难使用一张 B 样条曲面进行拟合的网格模型,我们将其拆分为多张子网格,子网格组成层次化树状结构。然后对于每张子网格, 使用一张 B 样条曲面进行拟合。 本文算法对于一些经典的网格模型输入有较好的拟合结果。
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Feature-aware natural texture synthesis
This article presents a framework for natural texture synthesis and processing. This framework is motivated by the observation that given examples captured in natural scene, texture synthesis addresses a criti...
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Article
SimLocator: robust locator of similar objects in images
Similar objects commonly appear in natural images, and locating and cutting out these objects can be tedious when using classical interactive image segmentation methods. In this paper, we propose SimLocator, a ro...
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An octree-based proxy for collision detection in large-scale particle systems
Particle systems are important building block for simulating vivid and detail-rich effects in virtual world. One of the most difficult aspects of particle systems has been detecting collisions between particle...
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Open Access3DMolNavi: A web-based retrieval and navigation tool for flexible molecular shape comparison
Many molecules of interest are flexible and undergo significant shape deformation as part of their function, but most existing methods of molecular shape comparison treat them as rigid shapes, which may lead t...
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Chapter and Conference Paper
Recovering Geometric Detail by Octree Normal Maps
This paper presents a new approach for constructing normal maps that capture high-frequency geometric detail from dense models of arbitrary topology and are applied to the simplified version of the same models...
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Article
Fast Multi-Operator Image Resizing and Evaluation
Current multi-operator image resizing methods succeed in generating impressive results by using image similarity measure to guide the resizing process. An optimal operation path is found in the resizing space....
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Article
G n filling orbicular N-sided holes using periodic B-spline surfaces
The orbicular N-sided hole filling problem is usually introduced by filleting an end-point of a part with large radius. The existing methods based on quadrilateral partition or constrained-optimization can rarely...
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Article
Filling n-sided regions with G 1 triangular Coons B-spline patches
Filling n-sided regions is an essential operation in shape and surface modeling. Positional and tangential continuities are highly required in designing and manufacturing. We propose a method for filling n-sided ...
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Chapter and Conference Paper
Spectrally-Based Single Image Relighting
This paper presents a new spectrally-based single image relighting approach. We first compute the spectral radiance of each stimulus on the monitor when displaying the image and then approximate this radiance ...
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Article
Robust tile-based texture synthesis using artificial immune system
One significant problem in tile-based texture synthesis is the presence of conspicuous seams in the tiles. The reason is that sample patches employed as primary patterns of the tile set may not be well stitche...
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Article
Perspective-aware texture analysis and synthesis
This paper presents a novel texture synthesis scheme for anisotropic 2D textures based on perspective feature analysis and energy optimization. Given an example texture, the synthesis process starts with analy...
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Chapter and Conference Paper
Tile-Based Interactive Texture Design
In this paper, we present a novel interactive texture design scheme based on the tile optimization and image composition. Given a small example texture, the design process starts with applying an optimized sam...
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Chapter and Conference Paper
Iterative Methods for Visualization of Implicit Surfaces On GPU
The ray-casting of implicit surfaces on GPU has been explored in the last few years. However, until recently, they were restricted to second degree (quadrics). We present an iterative solution to ray cast cubi...
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Article
Visual Simulation of Multiple Unmixable Fluids
We present a novel grid-based method for simulating multiple unmixable fluids moving and interacting. Unlike previous methods that can only represent the interface between two fluids (usually between liquid an...
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Chapter and Conference Paper
Constrained Delaunay Triangulation Using Delaunay Visibility
An algorithm for constructing constrained Delaunay triangulation (CDT) of a planar straight-line graph (PSLG) is presented. Although the uniform grid method can reduce the time cost of visibility determination...
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Chapter and Conference Paper
Adaptive Geometry Compression Based on 4-Point Interpolatory Subdivision Schemes
We propose an adaptive geometry compression method based on 4-point interpolatory subdivision schemes. It can work on digital curves of arbitrary dimensions. With the geometry compression method, a digital cur...
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Chapter and Conference Paper
Optimal Parameterizations of Bézier Surfaces
The presentation of Bézier surfaces affects the results of rendering and tessellating applications greatly. To achieve optimal parameterization, we present two reparameterization algorithms using linear Möbius...
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Chapter and Conference Paper
An Architecture for Collaborative Geomodeling
This paper presents an architecture for distributed synchronous collaborative visualization and modeling applied to the geosciences. Our goal is to facilitate the creation of heterogeneous collaboration sessio...
