An Interactive Risk Visualization of Snow Sliding from Roof with a Particle-Based Real-Time CG
An Interactive Risk Visualization of Snow Sliding from Roof with a Particle-Based Real-Time CG
复制标题
使用基于粒子的实时 CG 实现屋顶滑落积雪的交互式风险可视化
DOI：
10.1109/cw.2015.61
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Mitsunori Makino
中科院分区：
文献类型：
--
作者：
Akari Saito;Mitsunori Makino
本文提出了一种交互式风险可视化系统，使人们能够直观地了解屋顶下雪的风险。该系统将风险表示为彩色条形图和由平滑粒子流体动力学方法(SPH)模拟的实时计算机图形(CG)图像。首先，雪的行为被定义为基于流体的动力学。其次，在图形处理单元(GPU)上使用雪地滑动的实时CG以两种方式可视化风险。一条是雪地上的彩色条形图，另一条是观众认为不会下雪的区域的数值。这种形象化给了观者一个直观的理解。观察者可以交互地以图形方式操纵条件，例如积雪量、屋顶的倾斜度以及观察者认为安全的区域。从系统对风险的直观理解和易用性两个方面的评价来看，其有效性尤其体现在生活在小降雪地区、对危险知识知之甚少的用户。因此，我们得出结论，所提出的系统可以作为一个关于雪地滑动安全性的自我学习工具。
This paper proposes an interactive risk visualization system to enable people to understand intuitively the risk of snow sliding from a roof. The system represents the risk as a colored bar and real-time computer graphics (CG) images simulated by the smoothed-particle hydrodynamic method (SPH). First, snow behavior is defined as fluid-based dynamics. Second, the risk is visualized in two ways with real-time CG of the snow sliding on a graphics processing unit (GPU). One is a colored bar along the ground where the snow hits, and another is numerical value for a zone where a viewer supposes to be safe from the snow sliding. Such visualization gives an intuitive understanding to the viewer. The viewer can interactively and graphically manipulate the conditions, such as the accumulated mass of snow, the pitch of the roof, and the zone where the viewer supposes to be safe. From the evaluation of the system on both aspects of intuitive understanding of the risk and usability, its effectiveness is especially shown to users who live in little snowfall regions and have few knowledge about the dangerous. Therefore, we conclude that the proposed system performs as a self-study tool about the safety from snow sliding.