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Katsunobu Imai

Researcher at Hiroshima University

Publications -  75
Citations -  628

Katsunobu Imai is an academic researcher from Hiroshima University. The author has contributed to research in topics: Cellular automaton & Reversible cellular automaton. The author has an hindex of 13, co-authored 71 publications receiving 588 citations.

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Journal ArticleDOI

A computation-universal two-dimensional 8-state triangular reversible cellular automaton

TL;DR: This paper shows that the number of states of Morita and Ueno's models can be reduced, using a triangular 3-neighbor, and thus an 8-state RCA can be possible, the smallest state two-dimensional RCA under the condition of isotropic property in the framework of PCA.
Journal ArticleDOI

Microprocessor-based memory device for ambulatory heart rate and physical activity recording.

TL;DR: Using microprocessor techniques, a portable digital memory device has been designed for the ambulatory monitoring of heart rate and physical activity and changes in heart rates andPhysical activity in daily life have been successfully recorded.
Journal ArticleDOI

Self-reproduction in a reversible cellular space

TL;DR: This work designs a reversible PCA SR 8, a special type of CA whose cell is divided into five parts, and shows that various objects can reproduce themselves in a very simple manner.
Journal ArticleDOI

Self-reproduction in three-dimensional reversible cellular space

TL;DR: This work constructs a three-dimensional self-inspective self-reproducing reversible cellular automaton by extending the two-dimensional version SR8, which canSelf-reproduce various patterns in three- dimensional reversible cellular space without dissipating garbage signals.
Book ChapterDOI

Universal computing in reversible and number-conserving two-dimensional cellular spaces

TL;DR: It is shown that, despite strict constraints of reversibility and number-conservation, there exist simple two-dimensional NC-RCAs that are capable of universal computation.