图形驱动的微表达式染与情感多样化的表达式为真实的数字人类
Lei Fang1, Fan Yang1, Yichen Lin2
1Department of Emotion Engineering, Sangmyung University, Seoul 03016, Republic of Korea.
Biomimetics (Basel, Switzerland)
|September 26, 2025
概括
这项研究引入了一个以图形驱动的框架,用于在数字人中染现实的微表达式. 这种新方法通过模拟面部动作单元依赖性来提高情感多样性和动画自然性.
科学领域:
- 计算机图形和动画.
- 人工智能的人工智能
- 人与计算机的交互
背景情况:
- 微表情对于在数字人类中传达微妙的情绪至关重要.
- 现有的染技术与时间动态和动作单元相互依赖性作斗争,导致硬的动画.
- 需要先进的方法来产生真实的和情感多样化的微表达式.
研究的目的:
- 为微表达式染提出一个新的图形驱动框架.
- 为了增强数字人脸动画的情感多样性和现实性.
- 为了弥合微表情识别和高保真面部动画之间的差距.
主要方法:
- 使用3D-ResNet-18骨干从面部视频中进行联合时空特征提取.
- 模拟的行动单位 (AU) 作为对称图的节点,捕捉图形卷积网络的依赖关系.
- 采用B-spline函数,将AU激活插入连续运动曲线,用于实时动画 (虚幻引擎).
主要成果:
- 在CASME II数据集上实现了卓越的性能,F1得分为77.93%和准确率为84.80% (五倍交叉验证).
- 与现有的基线方法相比,证明了时间细分的改进.
- 主观评估证实了数字人类的感知清晰度,自然性和现实性的增强.
结论:
- 拟议的图形驱动框架有效地使情感多样化和真实的微表达式.
- 使用对称图形建模AU相互依赖,显著提高了动画质量.
- 这种方法使数字人类应用中更具表现力和现实的虚拟交互成为可能.
相关概念视频
Emotional Expression
954
Emotional expression encompasses how individuals convey their emotions through verbal communication and non-verbal cues. These non-verbal actions include facial expressions, body language, and physical gestures, such as frowning or smiling. Among these, facial expressions play a crucial role in emotional expression and are understood universally, indicating a biological basis for how humans communicate emotions.
Universal Facial Expressions
Psychologist Paul Ekman identified seven basic...
Universal Facial Expressions
Psychologist Paul Ekman identified seven basic...
954
Muscles for Facial Expressions
4.7K
The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...
4.7K
Labeling Emotion
601
Emotional labeling is a cognitive process that involves identifying and naming one's emotions, such as anger, fear, happiness, or sadness. It allows individuals to recognize and express their internal emotional states, a critical aspect of emotional regulation and communication. Labeling emotions requires more than mere recognition; it also involves drawing upon memory and contextual cues to understand the current situation and apply a corresponding emotional label. For instance, feeling...
601
Facial Feedback Hypothesis
588
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role...
588
Modeling and Similitude
617
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
617
Therapeutic Communication
7.1K
Communication is a lifelong learning process. Through therapeutic communication, nurses can collect relevant assessment data, provide education and counseling, and interact during nursing interventions. Sending and receiving messages occur through verbal and nonverbal communication techniques and can happen separately or simultaneously.
Verbal communication depends on language or a prescribed way of using words so that people can share information effectively. The critical aspects of verbal...
Verbal communication depends on language or a prescribed way of using words so that people can share information effectively. The critical aspects of verbal...
7.1K


