数学で探る錯視の世界
Looking into the Mathematical world of optical illusions

数学を創る-数学者達の挑戦(学術俯瞰講義)
第7回 数学で探る錯視の世界
新井仁之
Creating Mathematics - The Challenge of Mathematics (Global Focus on Knowledge)
#7 Looking into the Mathematical world of optical illusions
Hitoshi Arai