Akifumi Makinouchi

Learn More
In this paper definitions of unnormalized relation, functional dependency on it and Normal Form are presented. The Normal Form plays a key role in our relational data model in which unnormalized relations are admitted as does the Third Normal Form of Codd in the data model of normalized relation. Properties pertaining to Normal Form are discussed(More)
This paper proposes a technique for indexing, clustering and retrieving images based on their edge features. In this technique, images are decomposed into several frequency bands using the Haar wavelet transform. From the one-level decomposition sub-bands an edge image is formed. Next, the higher order auto-correlation function is applied on the edge image(More)
New applications such as CAD, AI, and hypermedia require directrepresentation and flexible use of complex objects, behavioralknowledge, and multimedia data. To this end, we have devised a knowledgebase management system called Jasmine. An object-oriented approach in aprogramming language also seems promising for use in Jasmine. Jasmineextends the current(More)
This paper demonstrates an approach to image retrieval founded on classifying image regions hierarchically based on their shape, etc.). Particularly, we consider to automatically classify regions of outdoor images based on their semantics using the support vector machines (SVMs) tool. First, image regions are segmented using the hill-climbing method. Then,(More)
This paper presents a dynamic motion control technique for human-like articulated figures in a physically based character animation system. This method controls a figure such that the figure tracks input motion specified by a user. When environmental physical input such as an external force or a collision impulse are applied to the figure, this method(More)
In this paper, we present a novel technique for real-time cloth simulation. The method combines dynamic simulation and geometric techniques. Only a small number of particles (a few hundred at maximum) are controlled using dynamic simulation to simulate global cloth behaviors such as waving and bending. The cloth surface is then smoothed based on the elastic(More)