Cloth compression using local cylindrical coordinates

Cloth compression using local cylindrical coordinates
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使用局部圆柱坐标进行布料压缩

DOI:
10.1007/s00371-017-1389-2
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发表时间:
2017-05
期刊:
影响因子:
3.5
通讯作者:
Huang Jin
Huang Jin
中科院分区:
计算机科学3区
文献类型:
--
作者:
Chen Jiong;Zheng Yicun;Song Ying;Sun Hanqiu;Bao Hujun;Huang Jin

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织物的褶皱细节需要密集的三角形网格来表示,这导致了织物动画的存储和网络传输负载的巨大开销。本文根据织物几乎不可伸展的特性,提出了一种简单有效的压缩方法,其主要自由度为织物的二面角。给定一个帧作为参考,我们建立一个局部柱坐标系,并将顶点编码为三个通道:二面角,半径变化和高度w.r.t.。参考。后两个通道的值由于布料的不可延展性而接近于零,这有助于实现高压缩比。与以前的方法相比,我们的方法可以实现更高的压缩比,较低的计算成本。
Dense triangular mesh is required to represent fine wrinkle details, which leads to heavy cost of storage and network transmission payload for cloth animation. This paper describes a simple and efficient compression method based on the nearly inextensible property of cloth, whose main degrees of freedom are the dihedral angles. Given a single frame as the reference, we build a local cylindrical coordinate system and encode the vertex as three channels: dihedral angle, change of radius and height w.r.t. the reference. The values of latter two channels are close to zero due to the inextensibility of cloth, which helps for a high compression ratio. Compared with previous approaches, our method can achieve a higher compression ratio with lower computational cost.
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