• Science of Emotion and Sensibility
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• v.21 no.4
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• pp.43-54
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• 2018

The aim of this study is to determine the effect of motion sickness on pupil rhythm. Sixteen volunteers of both genders (8 male, 8 female, mean age $25.67{\pm}2.43$ years) experienced VR contents in both 2D and HMD versions for 15 minutes, and their pupillary rhythms were compared. The irregular pattern of the pupillary rhythms, as demonstrated by increasing mean pupil diameter (mPD) and standard deviation of the pupil diameter (sPD), revealed motion sickness after experiencing HMD condition. The pupillary response is strongly related to the cognitive load, and the motion sickness can be interpreted as a change in the cognitive load caused by the increasing volume of visual information that must be processed and the conflict or inconsistency between different sensory modalities. The method proposed in this study could be a non-contact measurement method for the monitoring of motion sickness using a web-camera rather than previous sensor-based methods.

• 제어로봇시스템학회:학술대회논문집
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• 2004.08a
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• pp.1121-1125
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• 2004

The RT(Robot Technology) has been developed as the next generation of a future technology. According to the 2002 technical report from Mitsubishi R&D center, IT(Information Technology) and RT(Robotic Technology) fusion system will grow five times larger than the current IT market at the year 2015. Moreover, a recent IEEE report predicts that most people will have a robot in the next ten years. RCP(Robotic Cellular Phone), CP(Cellular Phone) having personal robot services, will be an intermediate hi-tech personal machine between one CP a person and one robot a person generations. RCP infra consists of $RCP^{Mobility}$, $RCP^{Interaction}$, $RCP^{Integration}$ technologies. For $RCP^{Mobility}$, human-friendly motion automation and personal service with walking and arming ability are developed. $RCP^{Interaction}$ ability is achieved by modeling an emotion-generating engine and $RCP^{Integration}$ that recognizes environmental and self conditions is developed. By joining intelligent algorithms and CP communication network with the three base modules, a RCP system is constructed. Especially, the RCP interaction system is really focused in this paper. The $RCP^{interaction}$(Robotic Cellular Phone for Interaction) is to be developed as an emotional model CP as shown in figure 1. $RCP^{interaction}$ refers to the sensitivity expression and the link technology of communication of the CP. It is interface technology between human and CP through various emotional models. The interactive emotion functions are designed through differing patterns of vibrator beat frequencies and a feeling system created by a smell injection switching control. As the music influences a person, one can feel a variety of emotion from the vibrator's beats, by converting musical chord frequencies into vibrator beat frequencies. So, this paper presents the definition, the basic theory and experiment results of the RCP interaction system. We confirm a good performance of the RCP interaction system through the experiment results.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2018.06a
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• pp.24-27
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• 2018

본 논문은 최신 가상현실 미디어 기술동향과 다양한 분야에서 시도해 온 VR 멀미저감 방안을 리뷰하여, 가상현실 사용자의 인지적 수용성을 높이는 방안에 대해 논의하였다. 이를 통해 최신 미디어 기술의 사용자 가치제안 방식을 분석하고 Social VR 플랫폼의 인지적 수용성을 개선하는 효율적 방안을 제안하였다. 생체신호 모니터링, VR 콘텐츠 적합도 분석, 멀미 메커니즘 조절, 신체동요측정 기반 멀미예측 등 다양한 멀미저감 방식 중 개발 비용과 사용자 수용성 측면에서 가장 효율적인 신체동요측정 기반 멀미예측 기술의 사전테스트 결과를 소개하고 적용 방안을 구체화하였다. 가상현실 체험 전 미세한 신체동요가 많은 사용자일수록 VR 멀미 민감도가 크게 증가하는 것을 확인하였다. 개인의 멀미민감도를 반영하는 본 측정 결과를 다양한 가상현실 환경에서 테스트하고 개인특성에 따른 VR 멀미 데이터베이스를 구축한다면 AI 기반의 멀미 예측기술을 구현하는데 크게 기여할 것으로 예상된다.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06a
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• pp.100-103
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• 2011

최근 스마트폰의 보급이 일반화되면서 보다 개인화된(Personalized) 서비스를 제공하려는 시도가 다각도로 이루어지고 있다. 이러한 시도 중 하나가 사용자의 감성을 인식하여 보다 효과적인 서비스를 제공하려는 것이다. 본 논문에서는 스마트폰으로부터 얻어낸 위치인식정보와 사용자 정보를 베이지안 네트워크를 활용하여 상황정보를 도출한다. 이 상황정보와 사용자의 선호도 정보를 퍼지 추론을 이용하여 얻은 결과 값을 수정된 Valence-Arousal 모델에 매핑하여 사용자의 감성정보를 추출하는 감성 추출 엔진을 제안한다. 유용성 평가를 위해 현재 상용 중인 스마트폰에 제안하는 감성 추출 엔진을 이용, 사용자 감성을 인식하고 적절한 서비스를 추천하는 애플리케이션을 구현하였다.

• The Journal of Korea Robotics Society
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• v.18 no.2
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• pp.203-215
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• 2023

Social robots, which are mainly used by individuals, emphasize the importance of human-robot relationships (HRR) more compared to other types of robots. Emotional expression in robots is one of the key factors that imbue HRR with value; emotions are mainly expressed through the face. However, because of cultural and preference differences, the desired robot facial expressions differ subtly depending on the user. It was expected that a robot facial expression customization tool may mitigate such difficulties and consequently improve HRR. To prove this, we created a robot facial expression customization tool and a prototype robot. We implemented a suitable emotion engine for generating robot facial expressions in a dynamic human-robot interaction setting. We conducted experiments and the users agreed that the availability of a customized version of the robot has a more positive effect on HRR than a predefined version of the robot. Moreover, we suggest recommendations for future improvements of the customization process of robot facial expression.

• Journal of Internet Computing and Services
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• v.15 no.5
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• pp.83-93
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• 2014

Providing personalized services customized to users' needs and preferences becomes highlighted as a key area of user-context computing. It is essential for context-aware technology to be developed more intelligent and meaningful services by being widely applied to a variety of sectors and domains. SDO (Standard Development Organization) such as MPEG and W3C has been actively developed to be standardized services and to improve context-awareness services. Yet current standards related to context-aware technology, such as MPEG-7, MPEG-21, MPEG-V, and emotionML, are not capable enough to support various systems and diverse services. Against this backdrop, the MPEG User Description, referred to also as MPEG-UD Standard, is to ensure interoperability among recommendation services, which take into account user's context when generating recommendations to users. In this light, we introduce standards related to the user context and propose the structure for RD-Engine and the Remote Responsive User Interface(RRUI) system in reference to MPEG-UD. This system collects unit resources matching specific condition according to the user's contexts described by MPEG-UD. In so doing, it improves adaptive user interface considering device features in real-time. By automatically generating adaptive user interfaces tailored to an individual's contexts, the proposed system aims to achieve high-quality user experience for a complex service.

• The KIPS Transactions:PartB
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• v.8B no.5
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• pp.485-492
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• 2001

Recently, character agents are used as a user-friendly interface. In this paper, we have studied a generic framework for emotional character agents which are designed to infer emotions from diverse personalities, situations, user behaviors and to express them. The method of emotion inference is based on blackboard systems which are used to solve the problems in AI. Because it keeps independence between knowledge sources which are rules of emotions, a blackboard-based inference engine is easy to manage knowledge sources, Blackboard-based systems gave the system flexibility. So we can adapt the engine to various application systems. Each emotional agent monitors user behavior, learns user profile and infers user behavior. And it generates characters emotions according to the user profile. So, in case of same situations, the agent can generate different emotions according to users. We have studied to build an personalized emotional character agent which according to situations and user modeling.

• Journal of Broadcast Engineering
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• v.23 no.6
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• pp.800-812
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• 2018

In this study, we reviewed recent trends for enhancing human cognitive accessibility to social VR platform. We also proposed a practical method to predict VR sickness and improve the cognitive accessibility. In doing so, we investigated subtle changes in human body sway unconsciously made before, during, and after being exposed to extreme VR experience. The scientific assumption that VR sickness would be correlated with the subtle changes in body sway was validated. We found that participants who showed sensitive changes in the body sway before VR experience, felt more severe VR sickness than others. The findings can be practically applied in predicting susceptibility to VR sickness prior to VR experiences.

• Fire Science and Engineering
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• v.22 no.5
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• pp.105-111
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• 2008

Improvement of fire investigation system is required to supplement problem that can happen after product liability law enforcement of our country. This treatise searches special quality of inside and outside of the country fire investigation that was enforced present with theoretical background of manufacture water responsibility law and compared. And is based and grasped objective and hangup in police fire investigation, fire fighting fire investigation, engine fire investigation of private fire judgment. By improvement way accordingly first, proposed fire emotion connection studies and establishment and connoisseurship qualification system establishment etc. in the common people private fire diet, judgment, analysis company's necessity second, fire fighting of fire investigation system, police's member anger third, college.

• Journal of Digital Convergence
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• v.10 no.4
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• pp.347-352
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• 2012

Uncertain physical phenomena of nature are a frequently researched area in emotional engineering technology and visual expression of art. This paper suggests possibility for implementation of physical phenomena (percolation, dispersion, and flow) of nature using Unity 3D engine's particle system, which have already been analyzed in a previous study [1] on modern paintings that emphasized physical properties. This paper proposes an easy implementation method for uncertain physical phenomena of nature for artists experiencing difficulty in acquisition of knowledge on computer graphics programming, providing an idea for engineers conducting research on emotion-based technology.