@article{7f5fa68ba0bc4a5995b08f41e3badafa,
title = "Depth of field extension technology for two-dimensional code reader",
keywords = "Depth extension, Image processing, Phase mask, QR code, Reading distance, Two-dimensional code reader, Wavefront coding method",
author = "Chie Nagashima and Toshihiko Tsukada and Kunihiko Itoh and Yoshimi Kitazumi and Shinichi Komatsu",
year = "2016",
language = "English",
volume = "82",
pages = "118--121",
journal = "Seimitsu Kogaku Kaishi/Journal of the Japan Society for Precision Engineering",
issn = "0912-0289",
publisher = "Japan Society for Precision Engineering",
number = "2",
}