Do Hyoung Kim

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–Socially intelligent robots are no longer an interesting topic of science fiction. In the robotics community, there is a growing interest in building personal robots, or in buidling robots that share the same workspace with humans. Natural interaction between humans and robots is therefore essential. To interact socially with humans, a robot must be able(More)
— In the last decade, face analysis, e.g. face recognition, face detection, face tracking and facial expression recognition, is a very lively and expanding research field. As computer animated agents and robots bring a social dimension to human computer interaction, interest in this research field is increasing rapidly. In this paper, we introduce an(More)
—In this paper, we propose a method of selecting new types of rectangle features that are suitable for facial expression recognition. The basic concept in this paper is similar to Violar's approach, which is used for face detection. Instead of previous Haar-like rectangle features we choose rectangle features for facial expression recognition among all(More)
—An active vision system can control the gaze direction of mounted vision sensors and can overcome many shortcomings of other passive vision systems which have fixed vision sensors. Furthermore, most visual servoing approaches are concerned with a vision sensor or a passive stereo vision system which has fixed relative coordination between two cameras. In(More)
In this paper, we extend cascaded rectangle features based face detection to facial expression. New types of rectangle features that are suitable for facial expression recognition (FER) are proposed. We choose those as rectangle features for FER in a 3 Â 3 matrix form, using a variant of AdaBoost. In addition, the FER system constituted with the proposed(More)
β-1,6-glucan is a polysaccharide found in brown macroalgae and fungal cell walls. In this study, a β-1,6-endoglucanase gene from Saccharophagus degradans 2-40T, gly30B, was cloned and overexpressed in Escherichia coli. Gly30B, which belongs to the glycoside hydrolase family 30 (GH30), was found to possess β-1,6-endoglucanase activity by hydrolyzing(More)
– Robotic systems like humanoid frequently move to undesirable pose while being visually controlled at the boundary of its workspace, because the working environment is quite huge as compared with the robot's workspace. The main objective of this paper is to deal with problems occurring at the boundary of the robot's workspace. In addition, current typical(More)
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