| abstract |
| Background A previous study was conducted on the expression of hologram video contents considering a sense of presence though floating hologram video contents and yielded results. However, viewers’ distance from floating hologram can differ, from long to short. This study aims to express 3D hologram video considering a sense of presence according to distance.
Methods 3D hologram video considering a sense of presence, viewers with 7 different conversion factors were surveyed based on the 5 items listed on the video quality evaluation list provided by information and communication standards: brightness, chroma, contrast, resolution, and noise. As a result, the degree of video content with the greatest sense of presence was derived. Based on this, the study on the expression of 3D hologram video considering a sense of presence proceeded through a survey focusing on 6 sections that correspond to appropriate viewing distance for the top-down floating hologram developed for exhibition.
Result As the viewer’s viewing distance is shorter, high values of brightness, chroma, contrast, resolution, and noise were measured overall. These values are similar to the previous study on the expression of 3D hologram video considering a sense of presence. The longer the viewers’ viewing distance, the lower the measured values.
Conclusion the values of video contents’ brightness, chroma, contrast, resolution, and noise derived from this study can be put into viewing sections that differ for each exhibition hall and suggest a value with the greatest sense of presence appropriate for the relevant viewing section. |
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| Key Words |
| 상-하향식, 플로팅 홀로그램, 현존감, top-down, floating hologram, sense of presence |
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