头像害怕吗？瞳孔作为感知线索,Computer Animation and Virtual Worlds

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头像害怕吗？瞳孔作为感知线索
Computer Animation and Virtual Worlds ( IF 0.9 ) Pub Date : 2022-02-03 , DOI: 10.1002/cav.2040
Yuzhu Dong ₁ , Sophie Jörg ₂ , Eakta Jain ₁

Affiliation

眼睛对于虚拟角色的重要性源于一个人眼睛中内在的社会暗示。虽然以前关于计算机生成的眼睛的工作考虑了真实性和自然性，但很少有关于眼睛动画中的细节如何影响对化身内部情绪状态的感知的研究。我们提出了三个大型实验（N≈500），调查观众可以识别化身是否害怕的程度。我们发现参与者可以通过以下方式识别受惊的化身

75 %

$75 %$ 准确度使用眼睛中的线索，包括瞳孔大小变化、凝视和眨眼。因为眼动仪除了注视之外还会返回瞳孔直径，因此我们的实验告诉从业者，正确地为瞳孔设置动画将增加虚拟化身的表现力，而额外的成本可以忽略不计。这些发现也对在智能对话代理和社交机器人中创造富有表现力的眼睛有影响。

"点击查看英文标题和摘要"

Is the avatar scared? Pupil as a perceptual cue

The importance of eyes for virtual characters stems from the intrinsic social cues in a person's eyes. While previous work on computer generated eyes has considered realism and naturalness, there has been little investigation into how details in the eye animation impact the perception of an avatar's internal emotional state. We present three large scale experiments (N≈500) that investigate the extent to which viewers can identify if an avatar is scared. We find that participants can identify a scared avatar with

75 %

$75 %$ accuracy using cues in the eyes including pupil size variation, gaze, and blinks. Because eye trackers return pupil diameter in addition to gaze, our experiments inform practitioners that animating the pupil correctly will add expressiveness to a virtual avatar with negligible additional cost. These findings also have implications for creating expressive eyes in intelligent conversational agents and social robots.

更新日期：2022-02-03

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