Camera that controls image sensor exposure
作者： Tetsuo Mise , Yukio Mori , Seiji Okada , Shoichi Hasegawa
DOI:
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摘要: An automatic exposure control camera always permits a subject to be photographed with appropriate brightness regardless of front-lighted, back-lighted, or over-front-lighted condition. The area is divided into 64 regions. determines the average Yav over all regions, YavU 32 in regions constituting upper half, YavL lower YavD 1 which than , 2 YavB higher and . Based on ratios between these averages, distinguishes among an condition controls image sensor accordingly.
lens.org 参考文章(10)
Hirofumi Takei, Automatic exposure control apparatus ,(1992)
Tsumoru Fukushima, Haruo Yamashita, Katsuhiro Kanamori, Backlit scene and people scene detecting method and apparatus and a gradation correction apparatus ,(1997)
Hirofumi Suda, Katsuji Yoshimura, Kunihiko Yamada, Akihiro Fujiwara, Hideo Homma, Kitahiro Kaneda, Exposure control device ,(1995)
Hirokazu Naruto, Kazuchika Sato, Nobuyuki Taniguchi, Electric shutter control device for use in a still video camera, for example, and a method of controlling same ,(1989)
o Sony Corp Tomitaka, o Sony Corp Koyanagi, Tadafusa c, Masakazu c, Exposure control for video cameras ,(1995)
Fumiaki Kato, Toshiharu Kondo, Akihiro Kikuchi, Takashi Kohashi, Katsuaki Hirota, Digital color video camera with auto-focus, auto-exposure and auto-white balance, and an auto exposure system therefor which compensates for abnormal lighting ,(1991)
Yo Egusa, Yukie Goto, Tsutomu Mori, Makoto Fujimoto, Automatic exposure control apparatus ,(1993)
Numakura Satoru, EXPOSURE CONTROLLER FOR DIGITAL STILL VIDEO CAMERA ,(1996)
Tamaru Masaya, EXPOSURE CONTROLLER AND CONTROL METHOD FOR THE SAME ,(1999)
Akihiko Fujino, Tatsuya Ishida, Hiroshi Otsuka, Kotaro Hayashi, Hiroshi Ueda, Koji Hata, Photometry device for camera ,(1990)