用两个参数控制手语虚拟人情绪，让表情表达更自然一致。
Challenges and opportunities in portraying emotion in generated sign language
- 提出双参数表示法控制手语非手动表情
- 通过EASIER文本标注实现情绪精准调节
- 提升手语动画情感表达一致性，适合虚拟人开发
手语中的非手动信号始终是手语虚拟人生成的难点，尤其情感表达因缺乏统一的情绪状态描述方法而难以实现。本文探索将直观的双参数表示法应用于Paula手语虚拟人，可更连贯地实现情感面部表情的语言化表达。用户可通过名为EASIER的文本标记系统，利用两个数值参数控制Paula的情绪表现。该方法不仅能呈现更细腻的情感状态，还有望在语言标注中实现情感非手动信号的一致性描述，为手语虚拟人驱动提供新路径。
原文摘要 · Abstract (English)
Non-manual signals in sign languages continue to be a challenge for signing avatars. More specifically, emotional content has been difficult to incorporate because of a lack of a standard method of specifying the avatar's emotional state. This paper explores the application of an intuitive two-parameter representation for emotive non-manual signals to the Paula signing avatar that shows promise for facilitating the linguistic specification of emotional facial expressions in a more coherent manner than previous methods. Users can apply these parameters to control Paula's emotional expressions through a textual representation called the EASIER notation. The representation can allow avatars to express more nuanced emotional states using two numerical parameters. It also has the potential to enable more consistent specification of emotional non-manual signals in linguistic annotations which drive signing avatars.
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