日常生活中已有愈來愈多層面看得見電腦虛擬人物的應用，使用者對於虛擬人物的真實性要求也逐年增加。目前電腦虛擬人物的外型與內在個性設定多半由角色設計師或電腦動畫製作者一手操刀，經常難以滿足大眾用戶或觀眾的一般認知標準。本論文使用心理物理學實驗方法，探討電腦虛擬人物臉部色彩搭配與觀看者的認知聯想，以及觀看者的性別差異。由實驗的分析結果，為電腦動畫等相關產業提供建立虛擬角色時具參考性的建議。

本研究包含兩個實驗：實驗一「電腦虛擬人物臉部膚色評價」與實驗二「電腦虛擬人物臉部彩妝認知聯想評價」。實驗中針對臉部色彩進行變量控制和物理測量，利用心理物理學方法來度量觀看者對不同的彩妝效果所引發的心理認知，進而發展基於彩妝的情感量尺。
實驗一的分析結果發現，膚色明度對所有情感量尺評價皆無顯著影響；膚色色相對所有情感量尺評價皆有顯著影響；膚色彩度則對「艷麗的」、「性感的」以外的情感量尺評價有顯著影響。男、女觀看者在評價影像膚色時，對於「可愛的」、「性感的」、「自然的」的認知幾乎一致。
實驗二的分析結果發現，虛擬人臉影像在加入唇膏色彩，觀看者對情感量尺「艷麗的」、「有個性的」、「美麗的」、「清秀的」的評價有顯著改變。唇色明度、彩度、色相對所有情感量尺的評價皆有顯著影響。而男、女觀看者在評價影像膚色時，對於情感量尺「調和的」認知最一致；對「清秀的」認知幾乎完全不同，甚至稍微相反。

Virtual characters have been seen more and more in a wide range of applications in our daily life, and the requirements of realistic of virtual characters increases every year. The appearance and personality of virtual characters are set mostly by the computer animation designer, which is often difficult to meet the standard of general perception among the users and audience. In this research, psychophysical experiments were conducted to investigate the associated impression of facial colors of virtual characters. Gender differences of observers’ perception were studied as well. According to the analysis of experimental results, referential suggestion was provide to computer animation and other related industries.

Two experiments were conducted in this study. The first experiment1 is to investigate the associated impression of observers to the facial skin tone of virtual characters. The second experiment is to investigate the associated impression of observers to the facial make up of virtual characters. Facial colors were controlled in order to survey observers’ change in mental cognition, and emotional scales based on makeup were proposed by the end of study.
The first experiment results showed that the lightness of skin tone has no significant effect to all the emotional scales. The hue of skin tone has significant effects to each emotional scale. Moreover, the chroma of skin tone has significant effects to "gorgeous" and "sexy" among the emotion scale. Male and female observers have the same perspectives to "cute", "sexy" and "natural".
The second experiment results showed that observers’ impression has significantly changed in "beautiful", "character ", "gorgeous" and "delicate" after adding lipstick color to virtual face images. The lightness, chroma, and hue of lip colors have significant effects to all the emotional scales. Male and female observers have the same perspectives to the emotional scales "harmonious" and have almost completely different perspectives to the emotional scales "delicate ".

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