奥行き運動知覚における絵画的奥行き情報の加算的相互作用(<論文小特集>ヒューマンインフォメーション)

概要

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We conducted two experiments to the depth information interaction among cast shadow, relative size, and blur to perceive dynamic depth changes. In the first experiment, we measured the extent of the perceived amplitude of the reciprocating motion-in-depth at six different temporal frequencies. In the second experiment, we measured the perceived time-to-contact for a target apparently approaching an observer at three different speeds. The results show that : (a)the extent of the reciprocating motion-in-depth is larger when combining pictorial information than when presenting the information individually, (b)the extent of the reciprocating motion-in-depth decreases for the higher temporal frequencies of the reciprocating motion, and(c)the perceived time-to-contact decreases with the combining of the pictorial depth information. The results indicate that for dynamic depth perception additive interaction occurs among pictorial information that are less powerful. Moreover, the frequency of motion-in-depth produced by using different depth information is limited by a common mechanism. These data will be useful for producing a virtual-reality environment effectively.
社団法人映像情報メディア学会の論文
2001-11-01