• Journal of the Korea Computer Graphics Society
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• v.29 no.3
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• pp.21-31
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• 2023

In this paper, we introduce a case study of cinematography using digital human in virtual production. This case study deals with the system overview of virtual production using LEDs and an efficient filming pipeline using digital human. Unlike virtual production using LEDs, which mainly project the background on LEDs, in this case, we use digital human as a virtual actor to film scenes communicating with a real actor. In addition, to film the dialogue scene between the real actor and the digital human using a real-time engine, we automatically generated speech animation of the digital human in advance by applying our Korean lip-sync technology based on audio and text. We verified this filming case by using a real-time engine to produce short drama content using real actor and digital human in an LED-based virtual production environment.

• Proceedings of the IEEK Conference
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• 2006.06a
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• pp.279-280
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• 2006

This paper describes a method for reconstructing 3D feet in a real time vision based marker free motion capture system. The proposed method is developed based on the visual hull and model fitting. For a real time computing, a special lookup table is employed in this paper. This method is implemented and tested using three CCD cameras and preliminary results are presented in this paper.

• Journal of Digital Convergence
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• v.18 no.6
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• pp.411-418
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• 2020

The purpose of this study was to examine the influence of actor awareness on advertising effect, and to find out whether there is a moderation effect between actor awareness and perceived fit of PPL brand and drama. For this purpose, this research conducted an experimental study through the treatments. A total of 452 participants attended to the experimental study and responded to the questionnaire. As a result, the awareness of the actor did not affect the ad attitude, but it influenced the brand attitude significantly. The perceived fit between PPL brand and drama influenced both the ad attitude and brand attitude significantly. The interaction of actor awareness and perceived fit was significant in ad attitude but not in brand attitude. In addition, purchase intention increased as the attitude toward ad and brand was positive. The purpose of this study is to contribute to establishing a PPL profit strategy for web dramas by examining the relationship between actor awareness and advertising effects, and the moderating effect of perceived fit between PPL brand and drama.

• Korean journal of communication and information
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• v.54
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• pp.98-117
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• 2011

This paper is a theoretical inquiry of the changing roles of digital technologies in the representation of risk. Critically examining existing perspectives on risk society and risk communication, this paper argues that digital technologies and images in risk communication have been relatively understudied. Having said that, this paper suggests that Actor-network Theory provide useful theoretical tools for current studies on how digital technologies affect contemporary risk communication practices. Furthermore, this paper examines varied recent studies investigating how digital technologies of visualization are at play in risk communication practices. In doing so, this paper demonstrates how digital images and technologies interrupt the processes that scientific evidence is presented and facts are constructed in varied contemporary scientific reasoning. It will focus on the emerging mode of seeing and visual regime made possible by the increased usage of digital image and technologies, which are characterized by networked connection, sensor, computerized algorithm, and increased storage space. Finally this paper will discuss on the implications on future studies on the roles of digital images and technologies in risk communication practices in Korean context.

• The Journal of the Korea Contents Association
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• v.18 no.11
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• pp.205-212
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• 2018

Learning how to express and express the characteristics of acting expressions required by different media is easy to express the acting required in various mediums. The style of acting required by each medium is different depending on the characteristics of the medium. In particular, digital acting using computer graphics technology expresses actors as if they are in the space by imagining the imaginary space. Through computer graphics post-production, the actual space that will be visible on the final screen is completed and creates a story based on the actual situation. The role of digital actors in applying motion capture to movies is becoming increasingly important. Natural cross-reaction acting between live-action actors and digital character actors has become a trend in animation films where only digital actors appear. In animation films, a real actor plays a major role in connecting the characters of a digital actor. The core of a digital actor is the realization of a unique character performance. In the era of trans-media, the importance of digital acting is increasing day by day.

• International journal of advanced smart convergence
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• v.12 no.1
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• pp.130-139
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• 2023

With the increasing popularity of computer-generated virtual influencers, the trend is rising especially on social media. Famous virtual influencer characters Lil Miquela and Imma were all created by CGI graphics workflows. The process is typically a linear affair. Iteration is challenging and costly. Development efforts are frequently siloed off from one another. Moreover, it does not provide a real-time interactive experience. In the previous study, a real-time graphic workflow was proposed for the Digital Actor Hologram project while the output graphic quality is less than the results obtained from the CGI graphic workflow. Therefore, a real-time engine graphic workflow for Virtual Influencers is proposed in this paper to facilitate the creation of real-time interactive functions and realistic graphic quality. The real-time graphic workflow is obtained from four processes: Facial Modeling, Facial Texture, Material Shader, and Look-Development. The analysis of performance with real-time graphical workflow for Digital Actor Hologram demonstrates the usefulness of this research result. Our research will be efficient in producing virtual influencers.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.45 no.5
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• pp.140-147
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• 2008

This paper proposes Story Generation system based on Emotional Agent. In the proposed system, Emotional Agent is used as Actor whereas Story Generation produces goal and detailed plans to achieve goal. The storyline is constructed when the goal oriented plan is processed. The proposed system is effective and realistic since it employs human-like Emotional Agent as a main character in generating story.

• Korean journal of communication and information
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• v.67
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• pp.62-87
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• 2014

The purpose of this study is to understand the social and cultural implication of the activities of taking 'selfies' and the use of Social Network Service(SNS)s through the personal story of a 20s female researcher. She analyzes her own digital photography activities based on the experience of the use of Cyworld photo albums for three years and the use of pictures in iPhone album for fifteen months. The other researcher(40s male) cooperates to answer the questions about how to understand the digital photography activities. We understand the digital photography activities including digital cameras, social network services and smart phones as acts of personal identity configuration and acts of making the personal documentary. As a result, digital photos are used more for archive purpose rather than for document purpose. Also, we found that the digital photography activities can be understood as the interactions between human and non-human actors in the perspective of Actor-Network Theory (ANT).

• Journal of Digital Convergence
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• v.17 no.5
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• pp.417-423
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• 2019

The purpose is to find the effectiveness of parenting stress of husbands and wives with early children on their marital satisfaction. To achieve purpose, this study uses data of 455 couples who have early children from 7th wave of Panel Study on Korean Children. Data was analyzed by SPSS 21.0 and AMOS 21.0 for the APIM. The results are as follow. Marital satisfaction of husbands and wives are effected by parenting stress of actor and partner. Actor effect and partner effect of husbands' parenting stress effect on their marital satisfaction similarly. And actor effect of wives' parenting stress has a greater influence on their marital satisfaction than partner effect. Finally, some suggestions related to alleviate parenting stress and develop marital satisfaction of husbands and wives with early children were proposed.

• Information Systems Review
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• v.21 no.4
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• pp.125-141
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• 2019

With the advent of deep learning technology, which is represented by AlphaGo, artificial intelligence (A.I.) has quickly emerged as a key theme of digital transformation to secure competitive advantage for businesses. In order to understand the trends of A.I. based digital transformation, a clear comprehension of the A.I. business ecosystem should precede. Therefore, this study analyzed the A.I. business ecosystem from the multi-actor network perspective and identified the A.I. platform strategy type. Within internal three layers of A.I. business ecosystem (infrastructure & hardware, software & application, service & data layers), this study identified four types of A.I. platform strategy (Tech. vertical × Biz. horizontal, Tech. vertical × Biz. vertical, Tech. horizontal × Biz. horizontal, Tech. horizontal × Biz. vertical). Then, outside of A.I. platform, this study presented five actors (users, investors, policy makers, consortiums & innovators, CSOs/NGOs) and their roles to support sustainable A.I. business ecosystem in symbiosis with human. This study identified A.I. business ecosystem framework and platform strategy type. The roles of government and academia to create a sustainable A.I. business ecosystem were also suggested. These results will help to find proper strategy direction of A.I. business ecosystem and digital transformation.