Yutaka Takase

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This paper presents an overview of our efforts in modeling cultural heritage through observation. These efforts span three aspects: how to create geometric models of cultural heritage; how to create photometric models of cultural heritage; and how to integrate such virtual heritages with real scenes. For geometric model creation, we have developed a(More)
Stuffed toys live with all ages and hold them in some physical and mental aspects. With the soft feel and cute characters, stuffed toys play with them, sleep together and listen to their complaints. These roles of stuffed toys show that people imagine stuffed toys are interactive creature. Indeed, there are many stories and movies in which stuffed toys work(More)
The needs for 3D city models are growing rapidly and the applications of those models on computer graphics and virtual reality are appearing in a variety of fields in recent years. In parallel, the speed of the internet communication is being greatly improved by the fast and wide spread of broadband infrastructure. Today, those web3D applications are waited(More)
Using the recently developed 3D GIS (Geographic Information System) and related visualisation technologies, we have created a digital diorama of an entire historical city, which can be used to virtually travel through different realistic landscapes at different times in the history. The digital diorama called Virtual Kyoto is the virtual geographic(More)
This paper focuses on the computational analysis of the individual communication skills of participants in a group. The computational analysis was conducted using three novel aspects to tackle the problem. First, we extracted features from dialogue (dialog) act labels capturing how each participant communicates with the others. Second, the communication(More)
Gaze is an important nonverbal feedback signal in multiparty face-to-face conversations. It is well known that gaze behaviors differ depending on participation role: speaker, addressee, or side participant. In this study, we focus on dominance as another factor that affects gaze. First, we conducted an empirical study and analyzed its results that showed(More)
With the goal of assessing participant attitudes and group activities in collaborative learning, this study presents models of participation styles based on co-occurrence patterns of nonverbal behaviors between conversational participants. First, we collected conversations among groups of three people in a collaborative learning situation, wherein each(More)
Group discussions are used for various purposes, such as creating new ideas and making a group decision. It is desirable to archive the results and processes of the discussion as useful resources for the group. Therefore, a key technology would be a way to extract meaningful resources from a group discussion. To accomplish this goal, we propose(More)
A scanning device generally referred to as a "laser scanner", used to obtain 3D data of objects by irradiating laser beams, is used in the field of cultural properties, and is starting to achieve significant results. The technique to record complex 3D data with high accuracy and speed, without touching or destructing an object, makes it an essential tool in(More)