Contact Edit: Artist Tools for Intuitive Modeling of Hand-Object Interactions

Contact Edit: Artist Tools for Intuitive Modeling of Hand-Object Interactions
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联系编辑:用于手部-物体交互直观建模的艺术家工具

DOI:
10.1145/3592117
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发表时间:
2023
影响因子:
6.2
通讯作者:
Pollard, Nancy
Pollard, Nancy
中科院分区:
计算机科学1区
文献类型:
--
作者:
Lakshmipathy, Arjun Sriram;Feng, Nicole;Lee, Yu Xi;Mahler, Moshe;Pollard, Nancy

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摆出高接触交互是具有挑战性和耗时的,由于手的大量自由度(DOF)以及人类是判断手姿势的专家这一事实,手-物体交互尤其困难。本文解决了这一挑战,通过提升接触面积一流的原语。我们提供了端到端的艺术导向(EAD)工具来建模基于接触区域的交互,直接操纵接触区域,并自动计算相应的姿势。为了使这些操作直观和快速,我们提出了一种新的基于轴的接触模型,支持实时近似等距保持三角形表面上的操作,允许表面之间的移动,是强大的和可扩展的大面积。我们表明,使用我们的接触模型,即使是不受约束的,高自由度的自定义钻机旨在为传统的基于关键帧的动画管道,有利于高质量的构成。我们还通过与现有技术、消融研究、用户研究、定性评估和全身相互作用扩展的比较来评估我们的方法。
Posing high-contact interactions is challenging and time-consuming, with hand-object interactions being especially difficult due to the large number of degrees of freedom (DOF) of the hand and the fact that humans are experts at judging hand poses. This paper addresses this challenge by elevating contact areas to first-class primitives. We provideend-to-end art-directable(EAD) tools to model interactions based on contact areas, directly manipulate contact areas, and compute corresponding poses automatically. To make these operations intuitive and fast, we present a novel axis-based contact model that supports real-time approximately isometry-preserving operations on triangulated surfaces, permits movement between surfaces, and is both robust and scalable to large areas. We show that use of our contact model facilitates high quality posing even for unconstrained, high-DOF custom rigs intended for traditional keyframe-based animation pipelines. We additionally evaluate our approach with comparisons to prior art, ablation studies, user studies, qualitative assessments, and extensions to full-body interaction.
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