The research group of Professor Kazunori Morikawa of the Graduate School of Human Sciences, Osaka University is the first in the world to scientifically and quantitatively measure the amount of change in the appearance of the body shape due to clothing, such as the "wearing effect" and "leg length effect". developed.

 In the experiment, participants were shown images of Japanese women wearing clothes (standard stimulus) and images of various body shapes wearing gray zentai (comparative stimulus) based on the database of the National Institute of Advanced Industrial Science and Technology. I presented them in pairs and asked them to decide which one looked slimmer.As a result of the experiment, it was concluded that the black clothes look 3.1 cm thinner with "black / tuck-in" than the white clothes with "white / tuck-in", and the legs look 7 cm longer just by tucking in. ..

 Until now, clothes coordination that improves the appearance of body shape has little objectivity or science, and there is no choice but to rely on the manufacturer's advertisements, one's senses, and intuition.Therefore, the research group of Professor Morikawa and others has developed a technology to scientifically measure how many centimeters the appearance of the body looks different depending on the clothes by combining the experimental method of psychophysics and strict 3D computer graphics.It has become possible to provide scientific evidence and quantitative support for clothes that have a slimming effect and clothes that make the legs look longer.In addition, it will be possible to scientifically develop effective fashion based on these findings, and it is expected that it may revolutionize the fashion industry.

 The results of this research were presented at the 2019rd Annual Meeting of the Japanese Psychological Association held on September 9, 13.

Reference: [Osaka University] World's first! Quantitative measurement of body shape illusion effect by fashion-New technology for scientifically quantifying thinning illusion, leg length illusion, etc. by clothes Introducing scientific eyes to evaluation and development of fashion-

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