... Affective Computing Mincheol Whang and Joasang Lim Division of Digital Media Technology, Sang... more ... Affective Computing Mincheol Whang and Joasang Lim Division of Digital Media Technology, Sangmyung University Seoul, Korea 1. Introduction ... Promises and problems with the circumplex model of emotion. Newbury Park, CA., Sage. Lee, KK, Cho, YH & Park, KS (2006). ...
... Affective Computing Mincheol Whang and Joasang Lim Division of Digital Media Technology, Sang... more ... Affective Computing Mincheol Whang and Joasang Lim Division of Digital Media Technology, Sangmyung University Seoul, Korea 1. Introduction ... Promises and problems with the circumplex model of emotion. Newbury Park, CA., Sage. Lee, KK, Cho, YH & Park, KS (2006). ...
This paper presents the motivation, design, and a preliminary evaluation of a virtual world build... more This paper presents the motivation, design, and a preliminary evaluation of a virtual world builder, CLOVES. CLOVES is designed to support rapid construction of data-rich virtual environments and instruments for young children’s science inquiry learning. It provides a layered programming interface such as a visual design environment, scripting layer, and low-level application programming interface targeting for multiple levels of programming expertise. It is also intended to be a collaborative medium among interdisciplinary domain experts such as educators, modelers and software developers. A case study was conducted to evaluate the capabilities and effectiveness of CLOVES. The results showed that designers actively participated in decision making at every stage of the design process and shared knowledge among one another.
This research is to evaluate the arousal level by using cardiovascular response. PPG was used in ... more This research is to evaluate the arousal level by using cardiovascular response. PPG was used in this study as one of the method of measuring it rather than ECG (Electrocardiography) for the purpose of solving ergonomic problem of sensing. The participants were in the age group of 20 (mean=24, standard deviation=1.25): five men and five women. Each experiment composed with four identical sets. First, a black screen was displayed for 30 second rest. Then, the prepared 6 pair images were randomly presented for 10 second stimulation and for 30 second non-stimulation. PPG was measured on the earlobes of experimenters at 200Hz sampling frequency. PPG amplitude, PPI(Pulse to Pulse Interval), and PRV(Pulse Rate Variability) were analyzed according to arousal level. T-test was performed to compare between the PPG variables of rest and relaxation, rest and arousal, and relaxation and arousal. Relative to the rest state, PPG amplitude decreased in relaxed state and increased in aroused state. Relative to the rest state, PPI decreased in both emotional states. However, more significant decline was observed in aroused state. PRV's LF and HF were used in the form of LF/HF to compare between the relaxed and the aroused state. Therefore, PPG signal showed significant differences between relaxed and aroused state. In conclusion, evaluation of human arousal level used in the PPG analysis demonstrated that PPG has better usability and comforter measurement than ECG and is clearly an alternative method of measuring arousal level.
To detect accurate human gaze position is vey difficult, but important problem for many applicati... more To detect accurate human gaze position is vey difficult, but important problem for many applications. For that, it is requisite to detect the facial and eye movement accurately and fastly. So, we implemented a real-time gaze tracking system based on facial and eye movement. The performance of detecting facial features could be enhanced by Support Vector Machine and the eye
In this paper, we propose a new face and eye gaze tracking method that works by attaching gaze tr... more In this paper, we propose a new face and eye gaze tracking method that works by attaching gaze tracking devices to stereoscopic shutter glasses. This paper presents six advantages over previous works. First, through using the proposed method with stereoscopic VR ...
In the VnR (Virtual and Real Worlds) of recent virtual reality convergence, the modelling of real... more In the VnR (Virtual and Real Worlds) of recent virtual reality convergence, the modelling of realistic human face is focused on the facial appearance such as the shape of facial parts and muscle movement. However, the facial changing parameters caused by environmental factors beyond the facial appearance factors can be regarded as important ones in terms of effectively representing virtual avatar. Therefore, this study evaluates user's visual feeling response according to the opacity variation of eye reflection of virtual avatar which is considered as a new parameter for reprenting realistic avatar. Experimental result showed that more clear eye reflection induced more realistic visual feeling of subjects. This result can be regarded as a basis for designing realistic virtual avatar by supporting a new visual realistic representing factor (eye reflection) and its degree of representation (reflectance ratio).
... Affective Computing Mincheol Whang and Joasang Lim Division of Digital Media Technology, Sang... more ... Affective Computing Mincheol Whang and Joasang Lim Division of Digital Media Technology, Sangmyung University Seoul, Korea 1. Introduction ... Promises and problems with the circumplex model of emotion. Newbury Park, CA., Sage. Lee, KK, Cho, YH & Park, KS (2006). ...
... Affective Computing Mincheol Whang and Joasang Lim Division of Digital Media Technology, Sang... more ... Affective Computing Mincheol Whang and Joasang Lim Division of Digital Media Technology, Sangmyung University Seoul, Korea 1. Introduction ... Promises and problems with the circumplex model of emotion. Newbury Park, CA., Sage. Lee, KK, Cho, YH & Park, KS (2006). ...
This paper presents the motivation, design, and a preliminary evaluation of a virtual world build... more This paper presents the motivation, design, and a preliminary evaluation of a virtual world builder, CLOVES. CLOVES is designed to support rapid construction of data-rich virtual environments and instruments for young children’s science inquiry learning. It provides a layered programming interface such as a visual design environment, scripting layer, and low-level application programming interface targeting for multiple levels of programming expertise. It is also intended to be a collaborative medium among interdisciplinary domain experts such as educators, modelers and software developers. A case study was conducted to evaluate the capabilities and effectiveness of CLOVES. The results showed that designers actively participated in decision making at every stage of the design process and shared knowledge among one another.
This research is to evaluate the arousal level by using cardiovascular response. PPG was used in ... more This research is to evaluate the arousal level by using cardiovascular response. PPG was used in this study as one of the method of measuring it rather than ECG (Electrocardiography) for the purpose of solving ergonomic problem of sensing. The participants were in the age group of 20 (mean=24, standard deviation=1.25): five men and five women. Each experiment composed with four identical sets. First, a black screen was displayed for 30 second rest. Then, the prepared 6 pair images were randomly presented for 10 second stimulation and for 30 second non-stimulation. PPG was measured on the earlobes of experimenters at 200Hz sampling frequency. PPG amplitude, PPI(Pulse to Pulse Interval), and PRV(Pulse Rate Variability) were analyzed according to arousal level. T-test was performed to compare between the PPG variables of rest and relaxation, rest and arousal, and relaxation and arousal. Relative to the rest state, PPG amplitude decreased in relaxed state and increased in aroused state. Relative to the rest state, PPI decreased in both emotional states. However, more significant decline was observed in aroused state. PRV's LF and HF were used in the form of LF/HF to compare between the relaxed and the aroused state. Therefore, PPG signal showed significant differences between relaxed and aroused state. In conclusion, evaluation of human arousal level used in the PPG analysis demonstrated that PPG has better usability and comforter measurement than ECG and is clearly an alternative method of measuring arousal level.
To detect accurate human gaze position is vey difficult, but important problem for many applicati... more To detect accurate human gaze position is vey difficult, but important problem for many applications. For that, it is requisite to detect the facial and eye movement accurately and fastly. So, we implemented a real-time gaze tracking system based on facial and eye movement. The performance of detecting facial features could be enhanced by Support Vector Machine and the eye
In this paper, we propose a new face and eye gaze tracking method that works by attaching gaze tr... more In this paper, we propose a new face and eye gaze tracking method that works by attaching gaze tracking devices to stereoscopic shutter glasses. This paper presents six advantages over previous works. First, through using the proposed method with stereoscopic VR ...
In the VnR (Virtual and Real Worlds) of recent virtual reality convergence, the modelling of real... more In the VnR (Virtual and Real Worlds) of recent virtual reality convergence, the modelling of realistic human face is focused on the facial appearance such as the shape of facial parts and muscle movement. However, the facial changing parameters caused by environmental factors beyond the facial appearance factors can be regarded as important ones in terms of effectively representing virtual avatar. Therefore, this study evaluates user's visual feeling response according to the opacity variation of eye reflection of virtual avatar which is considered as a new parameter for reprenting realistic avatar. Experimental result showed that more clear eye reflection induced more realistic visual feeling of subjects. This result can be regarded as a basis for designing realistic virtual avatar by supporting a new visual realistic representing factor (eye reflection) and its degree of representation (reflectance ratio).
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