我們的臉部能夠表達多種的視覺訊息如個人情綺、認知狀態和動向。心理學家所認知的基本面都表情有快樂、悲傷、恐懼、生氣、厭惡和驚訝等六種 [1]。其中驚訝是這六種之中最少被論及的一種。對心理學家的研究而言，自動化面都表情辨識系統已經有顯著的貢獻 [2，3，4]。一種廣泛地被運用在測量面都表情的方法是面都動作編碼系統（Facial Action Coding System）[5]。同時隨著光學動態捕捉科技的進步，與傳統手繪動畫比較起來，利用3D 電腦動畫來製作面都表情成為比較容易掌握的方法。在本文中，吉卜力工作室所製作的動畫片被選來作為研究的對象。用3D 電腦動畫來製作可以達到面部表情的高精準度和效率。然而就驚訝這個面都表情而言，是在所有表情中最戲劇性和即時性的一個。精準度在這情形之下反而多少減少了誇張效果對觀眾產生的衝擊力。而且，它也是一個幾乎演員非常難成功地表演的表情，畢竟如果是有心理預期的話，它就不會成為真正的驚訝。在這論文中，我將討論被選到的這些動畫片的特色。

　　The face can communicate various visual information including personal emotion, cognitive state and intentions. Basic facial expressions typically recognized by psychologists are happiness, sadness, fear, anger, disgust and surprise [1]. Surprise as a facial expression is by far the least discussed category among 6 basic expressions. From the psychological point of view, significant contribution has occurred in automatic recognition of facial expression [2,3,4]. A common approach of measuring facial expression is widely utilized, which is Facial Action Coding System [5]. Along with the optical motion capture technology developments; doing 3D computer facial expression became an easier task compared with the traditional hand drawing animation. In this study, several animated feature films produced by Ghibli studio are selected as the subject. 3D computer facial animation can achieve a high level of accuracy and efficiency. Surprise happened to be the most dramatic and instantaneous of all emotions. Precision to human facial expression in the sense, would somehow limit the exaggerated effect to impact viewers. Also, it's an expression that virtually impossible for an actor to perform. If it's expected, it's not surprise at all. In this paper, I will dress the main characteristics of the selected animations.