Masatake Higashi

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Robust manipulation of a geometric model, that is free from computational errors, is one of the difficult proh-Iems in geometric modeling, and its algorithm is not established especially for the boundary representation. This paper proposes a new face-based data structure and a robust algorithm for processing polyhedra represented in the data structure. The(More)
— In this paper, we propose a therapeutic-assisted robot for children with autism to ameliorate their skill of joint attention. The robot conducts a goal-directed based interaction to establish engagement between the child and robot in order to establish a beneficial learning environment for autistic children. An unsupervised Mixture Gaussian-based cluster(More)
This paper introduces topological constraints to robustly and comprehensively process interference calculation in solid modeling and feature modeling, and describes a method of symbolic notation of their expressions and algorithms to handle them. The interference calculation should be processed consistently against the contradictions in numerical values and(More)
In this paper, we propose a method which modifies free-form surfaces to pass through not only specified points but also specified curves with the assistance of haptic navigation. Using the method, designers of aesthetic shapes such as a car body can manipulate the model of the shape in real-time looking at its stereoscopic image and feeling its haptic(More)
• We propose a method for high-quality vertex clustering using Student-t mixture model. • Less redundant clusters, which have no small isolated fragments, have been obtained. • High-quality clusters have been obtained which correspond to the underlying surfaces. a b s t r a c t In order to robustly perform segmentation for industrial design objects measured(More)