In various human motions, 1/fβ
fluctuation has been observed, so that 1/f
fluctuation has been utilized for producing human animation in order to make it more human-like and natural. The 1/f
fluctuation has been also utilized for producing animation of natural scenes, control of artificial environment, or etc., in order to make them more natural. Chaotic 1/f
fluctuation or non-chaotic one has been utilized, however, subjective comparison between them has not been studied yet. In this paper, hand-clapping animation utilizing them is investigated by subjective comparison. As a result, the case with chaotic 1/f
fluctuation was more natural and human-like than the case with non-chaotic one.
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