Departmental Bulletin Paper VECTION INDUCED BY ILLUSORY MINIATURIZATION OF MOVING PICTURE
VECTION INDUCED BY ILLUSORY MINIATURIZATION OF MOVING PICTURE

NAKAMURA, Shinji

Description
The effects of image miniaturization on visually induced self-motion perception (vection) were examined in a psychophysical experiment in which 11 observers participated. The original motion picture stimulus was filmed from a camera mounted on the front of a moving train. This kind of motion stimulus can be considered equivalent to retinal flow that we daily experience under natural visual environment, and termed as "real world stimulus". Saturation enhancementand defocused blur were applied to this original movie, as two types of miniaturization transformations. The results of psychophysical experiment revealed that the miniaturized movies can induce self-motion perception as strong as the original stimulus, although naturalness of the image experienced under the miniaturized conditions were significantly detracted. Impacts of using a real world stimulus as a future vection inducer were discussed base on the results.
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