The aperture problem가로로 움직이는 대각edge가 세로로 움직이는 것처럼 보이는 것 Barberpole illusionThe barberpole illusion is a visual illusion that reveals biases in the processing of visual motion in the human brain. This visual illusion occurs when a diagonally striped pole is rotated around its vertical axis (horizontally), it appears as though the stripes are moving in the direction of its vertical axis rather than around it.https://en.wikipedia.org/wiki/Barberpole_illusion
