作者: Susumu Matsumura
DOI:
关键词: Contrast (vision) 、 Object (computer science) 、 State (computer science) 、 Mathematics 、 Focus (optics) 、 Lens (optics) 、 Computer vision 、 Artificial intelligence
摘要: In an in-focus state detection device for determining a defocus quantity of object lens based on relative positional relationship plurality images, contrast at least one the images is detected before detected, and only when larger than predetermined level so that determination precision response speed are improved.