Encoded symbol reader which determines the uniformity of brightness of the background image
作者： Harumi Aoki
DOI:
关键词:
摘要: In an encoded symbol that is read by reader, image of the and a ratio minimum maximum values electrical signals corresponding to determined. If larger than predetermined value, brightness determined be uniform.
lens.org 参考文章(12)
Medford D. Sanner, Ambient illumination bar code reader ,(1987)
Masayuki Arai, Tohru Shikano, Terumi Ogasawara, Automatic diaphragm control device for use with CCTV camera ,(1984)
Takanori Tanaka, Masanobu Morishita, Automatic iris control for solid-stage imaging apparatus ,(1980)
Joseph P. Mulligan, Steven L. Smith, Combined camera system ,(1993)
Haruo Kogane, Hidetoshi Mimura, Television camera equipped with continuously-variable-speed electronic shutter function ,(1992)
Tohru Shikano, Terumi Ogasawara, Automatic diaphragm control device for a closed circuit television camera ,(1982)
Harumi Aoki, Nobuhiro Tani, Exposure controlling apparatus for electronic still camera ,(1988)
Masayuki Arai, Terumi Ogasawara, Automatic diaphragm control device for TV camera objective ,(1986)
Atsushi Morimura, Yoshinori Kitamura, Hiroki Matsuoka, Atsushi Fujioka, System for controlling the amount of light reaching an image pick-up apparatus based on a brightness/darkness ratio weighing ,(1987)