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DOI :
Journal Korea Society of Visual Design Forum , Vol.77, No.0, 107 ~ 117, 2022
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| Title |
| Prioritization of a UX Perspective for Mobile Optimization of Volumetric Content - Focusing on visual quality and speed- |
| 이민화 Min Hwa Lee , 박인평 In Pyung Park , 윤재영 Jae Young Yun |
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| abstract |
| Background Recently, because of COVID-19, the demand for non-face-to-face immersive content has increased. Accordingly, discussion and research to produce immersive content are being conducted in various fields, and among them, volumetric 4D technology is a technology that is receiving great attention. Volumetric 4D technology can be applied to various fields such as clothing, advertising, and games, and is gradually expanding its influence. However, in the current media service environment, the technical conditions for embedding volumetric 4D images are still insufficient. Therefore, through this study, the priority of user experience (UX) point of view for mobile optimization of volumetric content is to be derived. In the future, we would like to propose a mobile service compression rate of content using volumetric technology.
Methods We tried to measure UX satisfaction by making an app with contents using volumetric technology. This was to measure the priority of ‘viusal quality’ and ‘speed’, which are mentioned as problems in mobile optimization of volumetric content. For this reason, three types of volumetric content experiments were produced by giving differences in 'visual quality' and 'speed'(i.e.,'compressed twice visual quality - normal operation speed', 'compressed once visual quality - 0.2sec delay speed', 'original visual quality - 0.4sec delay speed’).
In addition, through the analysis of previous research analysis, 'usefulness', 'attraction', 'immersion', and 'satisfaction' were extracted as factors for evaluation of user experience, and the survey was conducted on men/women in their 20s, 30s, and 40s. did. Through this, it was confirmed which factor of ‘visual quality’ and ‘speed’ had a greater effect on satisfaction by generation or by gender.
Analysis of the study results compared the mean differences of the groups through One-way ANOVA. Experimental results were analyzed using generation and gender.
Result Many opinions were mentioned that ‘speed’ should be considered first among ‘visual quality’ and ‘speed’ in order to optimize volumetric content for mobile application in terms of UX. (Exceptionally, in the case of men in their 30s, there was no significant difference in the priority of ‘visual quality’ and ‘speed’ in all evaluation items). It was found that users felt greater benefit from smooth interaction such as smooth reproduction of content through normal ‘speed’, and content enlargement and rotation rather than the visual quality of volumetric technology.
Conclusion In order to optimize the volumetric technology for mobile application, it is difficult to implement both ‘visual quality’ and ‘speed’ to normal levels with the current technology. Therefore, from the user's point of view, we determine which part of ‘visual quality’ and ‘speed’ is more affected, and to derive priorities for optimization. As a result, it could be confirmed that the ‘speed’ had a greater effect than the ‘visual quality’. However, considering that the result was 'learning exercise content', it is possible that the purpose of learning exercise became a factor that gave more importance to ‘speed’. Therefore, it is necessary to conduct follow-up studies that can add validity to the results by conducting experiments on various contents targeting different fields. |
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| Key Words |
| 볼류메트릭, 모바일 고객 경험, UX, volumetric, mobile CX |
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