Hiroyasu Ichida

Osaka University, Ōsaka-shi, Osaka-fu, Japan

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Publications (5)0 Total impact

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    ABSTRACT: ActiveCube is a novel device that allows a user to construct and interact with a 3D environment by using cubes with a bi-directional user interface. A computer recognizes the 3D structure of connected cubes in real time by utilizing the real-time communication network among cubes. Also, ActiveCube is equipped with both input and output devices, at where the user expects to be, and this makes the interface intuitive and helps to clarify the causal relationship between the input of the user's operational intention and the output of simulated results. Consistency is always maintained between the real object and its corresponding representation in the computer in terms of object shape and functionalities. A variety of applications can be developed by utilizing ActiveCube. In this paper,we introduce a retrieval system of 3D shape models, a story-telling system and assessment of human's cognitive spatial ability as examples.
    04/2004;
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    ABSTRACT: Young children often build various structures with wooden blocks; structures that are often used for pretend play, subtly improving children's creativity and imagination. Based on a traditional Japanese wooden block toy, Tsumiki, we propose a novel interactive toy for children, maintaining the physical assets of wooden blocks and enhancing them with automation. We name our interactive toy "TSU.MI.KI." "TSU.MI.KI" consists of a set of computerized blocks equipped with several input/output devices. Children can tangibly interact with a virtual scenario by manipulating and constructing structures from the physical blocks, and by using input and output devices that are integrated into the blocks. TSU.MI.KI retains the physical advantages of its ancient predecessor and adds a distinct interactive layer that supports creativity by imitating a storyteller or a supportive caregiver.
    Creating, Connecting and Collaborating through Computing, 2004. Proceedings. Second International Conference on; 01/2004
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    ABSTRACT: We present a novel method for interactive retrieval of virtual 3D shapes using physical objects. Our method is based on simple physical 3D interaction with a set of tangible blocks. As the user connects blocks, the system automatically recognizes the shape of the constructed physical structure and picks similar 3D virtual shapes from a preset model database, in real time. Our system fully supports interactive retrieval of 3D virtual models in an extremely simple fashion, which is completely nonverbal and cross-cultural. These advantages make it an ideal interface for inexperienced users, previously barred from many applications that include 3D shape retrieval tasks.
    IEEE Virtual Reality Conference 2004 (VR 2004), 27-31 March 2004, Chicago, IL, USA, Proceedings; 01/2004
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    ABSTRACT: We present a novel method for interactive retrieval of 3D shapes using ysical objects. Our method is based on simple ysical D interaction with a set of tangible blocks. As the user connects blocks, the system automatically recognizes the shape of the constructed ysical structure and picks similar 3D shape models from a preset model database, in real time. Our system fully supports interactive retrieval of 3D shape models in an extremely simple fashion, which is completely non-verbal and cross-cultural. These advantages make it an ideal interface for inexperienced users, previously barred from many applications that include 3D shape retrieval tasks.
    Proceedings of the 12th ACM International Conference on Multimedia, New York, NY, USA, October 10-16, 2004; 01/2004
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