文章基本信息

标题：CMD撮像素子を用いた広ダイナミックレンジ撮像方式
本地全文：下载
作者：島本洋 ; 三谷公二 ; 藤田欣裕等
期刊名称：映像情報メディア学会誌
印刷版ISSN：1342-6907
电子版ISSN：1881-6908
出版年度：2000
卷号：54
期号：12
页码：1781-1787
DOI：10.3169/itej.54.1781
出版社：The Institute of Image Information and Television Engineers
摘要：Charge-modulation-device (CMD) image sensors feature non-destructive readout and high-speed operation. By using the source-reset method in the CMD reset operations, it is possible to control the reset of the pixel-accumulated charge from outside the sensor. Making use of these features, we propose a subject-adaptive-type wide-dynamic-range imaging system that increases the dynamic range of the CMD by activating the electronic shutter only for areas having strong incident light. This prevents the sensor from becoming saturated. The advantage of this system is that there is no need to modify the conventional CMD structure to increase the dynamic range-only a simple circuit need be added outside the sensor. Experiment on this system was performed using such CMDs as line and two-dimensional sensors, and the dynamic range was increased twice as much.
关键词：広ダイナミックレンジ;CMD撮像素子;ソースリセット法;増幅形撮像素子;非破壊読み出し;被写体適応