DualSmoke: Sketch-based smoke illustration design with two-stage generative model

IF 17.3 3区 计算机科学 Q1 COMPUTER SCIENCE, SOFTWARE ENGINEERING
Haoran Xie, Keisuke Arihara, Syuhei Sato, Kazunori Miyata
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引用次数: 0

Abstract

The dynamic effects of smoke are impressive in illustration design, but it is a troublesome and challenging issue for inexpert users to design smoke effects without domain knowledge of fluid simulations. In this work, we propose DualSmoke, a two-stage global-to-local generation framework for interactive smoke illustration design. In the global stage, the proposed approach utilizes fluid patterns to generate Lagrangian coherent structures from the user’s hand-drawn sketches. In the local stage, detailed flow patterns are obtained from the generated coherent structure. Finally, we apply a guiding force field to the smoke simulator to produce the desired smoke illustration. To construct the training dataset, DualSmoke generates flow patterns using finite-time Lyapunov exponents of the velocity fields. The synthetic sketch data are generated from the flow patterns by skeleton extraction. Our user study verifies that the proposed design interface can provide various smoke illustration designs with good user usability. Our code is available at https://githubcom/shasph/DualSmoke.

Abstract Image

DualSmoke:基于草图的烟雾插图设计与两阶段生成模型
烟雾的动态效果在插图设计中给人留下深刻印象,但对于不熟悉流体模拟领域知识的用户来说,设计烟雾效果是一个麻烦且具有挑战性的问题。在这项工作中,我们为交互式烟雾插图设计提出了一个从全局到局部的两阶段生成框架--DualSmoke。在全局阶段,建议的方法利用流体模式从用户的手绘草图生成拉格朗日相干结构。在局部阶段,从生成的相干结构中获得详细的流动模式。最后,我们将引导力场应用于烟雾模拟器,生成所需的烟雾插图。为了构建训练数据集,DualSmoke 使用速度场的有限时间 Lyapunov 指数生成流动模式。合成草图数据通过骨架提取从流动模式中生成。我们的用户研究验证了所提出的设计界面可以提供各种烟雾插图设计,具有良好的用户可用性。我们的代码见 https://githubcom/shasph/DualSmoke。
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来源期刊
Computational Visual Media
Computational Visual Media Computer Science-Computer Graphics and Computer-Aided Design
CiteScore
16.90
自引率
5.80%
发文量
243
审稿时长
6 weeks
期刊介绍: Computational Visual Media is a peer-reviewed open access journal. It publishes original high-quality research papers and significant review articles on novel ideas, methods, and systems relevant to visual media. Computational Visual Media publishes articles that focus on, but are not limited to, the following areas: • Editing and composition of visual media • Geometric computing for images and video • Geometry modeling and processing • Machine learning for visual media • Physically based animation • Realistic rendering • Recognition and understanding of visual media • Visual computing for robotics • Visualization and visual analytics Other interdisciplinary research into visual media that combines aspects of computer graphics, computer vision, image and video processing, geometric computing, and machine learning is also within the journal''s scope. This is an open access journal, published quarterly by Tsinghua University Press and Springer. The open access fees (article-processing charges) are fully sponsored by Tsinghua University, China. Authors can publish in the journal without any additional charges.
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