Compound facial expressions of emotion
Compound facial expressions of emotion
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DOI：
10.1073/pnas.1322355111
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发表时间：
2014-04-15
影响因子：
11.1
通讯作者：
Martinez, Aleix M.
中科院分区：
文献类型：
--
作者：
Du, Shichuan;Tao, Yong;Martinez, Aleix M.
了解我们经常使用的不同类别的面部表情对于深入了解人类认知和情感以及设计计算模型和感知界面至关重要。过去关于面部表情的研究主要集中在六个基本类别上：快乐、惊讶、愤怒、悲伤、恐惧和厌恶。然而，还有更多的面部表情存在，并经常被人类使用。本文描述了一组重要的表情，我们称之为复合情感类别。复合情绪是那些可以通过组合基本成分类别来创建新类别的情绪。例如，高兴地惊讶和愤怒地惊讶是两种不同的复合情绪类别。目前的工作定义了21个不同的情感类别。他们的面部表情样本图像是从230名人类受试者中收集的。面部动作编码系统的分析表明，这21个类别的产生是不同的，但与它们所代表的从属类别一致（例如：例如，在一个实施例中，快乐惊讶的表情结合了在快乐和惊讶中观察到的肌肉运动）。我们表明，这些差异足以区分21个定义的类别。然后，我们使用一个计算模型的人脸感知来证明，这些类别中的大多数也是视觉上彼此区分。
Understanding the different categories of facial expressions of emotion regularly used by us is essential to gain insights into human cognition and affect as well as for the design of computational models and perceptual interfaces. Past research on facial expressions of emotion has focused on the study of six basic categories-happiness, surprise, anger, sadness, fear, and disgust. However, many more facial expressions of emotion exist and are used regularly by humans. This paper describes an important group of expressions, which we call compound emotion categories. Compound emotions are those that can be constructed by combining basic component categories to create new ones. For instance, happily surprised and angrily surprised are two distinct compound emotion categories. The present work defines 21 distinct emotion categories. Sample images of their facial expressions were collected from 230 human subjects. A Facial Action Coding System analysis shows the production of these 21 categories is different but consistent with the subordinate categories they represent (e. g., a happily surprised expression combines muscle movements observed in happiness and surprised). We show that these differences are sufficient to distinguish between the 21 defined categories. We then use a computational model of face perception to demonstrate that most of these categories are also visually discriminable from one another.