RISS 검색 - 국내학술지논문 상세보기

다국어 초록 (Multilingual Abstract)

(Background and Purpose) Gartner, a global IT research and advisory firm, cited immersion experiences as one of the top 10 strategic technologies for 2019. This implies that a real-like experience is possible in a virtual environment without any constraint of time or space. Currently, there is a trend in the industry to produce digital humans with a better sense of reality, based on the textures and shapes that are obtained by taking pictures of real people. This study examines if the degree of reality in both, appearance and facial expressions, affects the sense of reality of digital humans, the level of difference observed, and what are the main influencing factors, by creating a prototype of digital humans from a more industrial perspective. (Method) In this study, existing digital humans have been studied to check wrinkles, skin color, skin texture, individual hair, lighting reflection, and pupil reflection. Experimental research using the produced prototype, was conducted, to identify the impact of both, appearance and facial expressions, on the sense of reality of digital humans, and what are the main influencing factors. The hypothesis was that when the degree of reality in facial expressions was increased by one level, the sense of reality indicated a difference of two or more levels, and asymmetry was the main factor in the facial expressions of digital humans. (Results) It was found that the ratio of overall sense of reality differed by two or more levels, as the degree of reality of the facial expressions in visual reality increased by one level. The main factors were the projection of light on the face, the reflection of the image in the pupils, and the impression of the hair, for the evaluation of the degree of reality of appearance. Additionally, it was confirmed that the main factors to evaluate the degree of reality were the different consequences for repetitive behavior, the irregular blinking of the eyes, and natural muscles. It was found that atypical factors such as harmony, irregularity, and asymmetry were the factors that had an impact on the overall sense of reality. (Conclusions) It was found that the degree of reality in facial expressions affected the sense of reality more than the appearance of digital humans in the virtual reality environment. It was confirmed that atypical factors such as harmony, irregularity, and asymmetry, which are the factors of the degree of reality in facial expressions of digital humans, were the most influencing factors in the overall sense of reality.

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