Taira Nakajima

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In recent years, video streaming delivery services of several Mbps has become very popular on IP networks such as the Internet. At the present stage, however, commercial high-quality video streaming that will need tens of Mbps is provided only by specified service providers who can guarantee communication quality of the network. Therefore, in order to let(More)
A multilayer perceptron is usually considered a passive learner that only receives given training data. However, if a multilayer perceptron actively gathers training data that resolve its uncertainty about a problem being learnt, sufficiently accurate classification is attained with fewer training data. Recently, such active learning has been receiving an(More)
We propose a learning algorithm for selforganizing neural networks to form a topology preserving map from an input manifold whose topology may dynamically change. Experimental results show that the network using the proposed algorithm can rapidly adjust itself to represent the topology of nonstationary input distributions. key words: competitive Hebbian(More)
In this paper, we propose an efficient method for tracking multiple objects, which deals with occlusion situations in an image. We use Shape from silhouettes method to reconstruct objects 3D position from images taken from different directions. Then we track the objects' reconstructed 3D positions by using mixed-state CONDENSATION algorithm. The(More)
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