Takahiro Hori

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This paper describes the result of our investigation on the utilization pixels arrangement and random permutation to encrypt medical image for transmission security. The objective of this scheme is to obtain a high speed computation process and high security. Among other algorithms such as transform method and traditional method, pixels arrangement and(More)
Due to inevitable power dissipation, it is said that nano-scaled computing devices should perform their computing processes in a reversible manner. This will be a large problem in constructing three-dimensional nano-scaled functional objects. Reversible cellular automata (RCA) are used for modeling physical phenomena such as power dissipation, by studying(More)
In recent years, super-resolution techniques in the field of computer vision have been studied in earnest owing to the potential applicability of such technology in a variety of fields. In this paper, we propose a single-image, super-resolution approach using a Gaussian Mixture Model (GMM) and Partial Least Squares (PLS) regression. A GMM-based(More)
This paper describes a method for generic object recognition using graph structural expression. In recent years, generic object recognition by computer is finding extensive use in a variety of fields, including robotic vision and image retrieval. Conventional methods use a bag-of-features (BoF) approach, which expresses the image as an appearance frequency(More)
This paper proposes a real-time control method of a series resonant high frequency link DC/AC power converter and a feedback control method of its output voltage waveform. An approximate analysis of the converter is performed for obtaining an equivalent circuit. Real-time feedback control for sinusoidal voltage waveform is realized using the equivalent(More)
This paper presents an integrated algorithm of fuzzy modeling and controller design. An LMI condition to identify the parameters of a Takagi-Sugeno fuzzy model (T-S fuzzy model) is derived. More importantly, we achieve stable fuzzy control for the identified T-S fuzzy model. The fuzzy modeling and controller design are applied to vision tracking control(More)
Recently, high-accuracy RGB-D cameras are commertially available, which are capable of providing high quality three dimension information (color and depth). In this paper, we propose an object recognition method where the techniques of object recognition in 2D are extended to 3D. Recent image classification systems mainly consist of the following three(More)
Recently, multimedia communication by smart-phones and tablets via mobile networks have become popular in daily life. Therefore, an effective method to use the limited wireless resources is necessary. When using wireless resources among multiple users, the schedulers allocate resources to each user. When allocating resources, assuring quality of experience(More)
This paper describes a method for generic object recognition using graph structural expression. In recent years, generic object recognition by computer is finding extensive use in a variety of fields, including robotic vision and image retrieval. Conventional methods use a bag-of-features (BoF) approach, which expresses the image as an appearance frequency(More)
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