公开(公告)号：US20070024741A1

公开(公告)日：2007-02-01

申请号：US10571280

申请日：2004-08-30

申请人： Osafumi Moriya ,  Aya Yanase ,  Mineo Mino

发明人： Osafumi Moriya ,  Aya Yanase ,  Mineo Mino

IPC分类号： H04N5/238

CPC分类号： H04N5/2352

摘要： An image processing device for automatically setting the accumulation time (exposure time) in accordance with the illuminance even in a dark environment and smoothly following the motion of an object. The image processing device includes: gain control means (7) for performing gain control of a video signal from an imaging element (6) which focuses a signal from an iris (2) controlling the light quantity of the optical signal coming from outside and outputs a video signal; signal processing means (9) for signal-processing an output signal from the gain control means (7); and imaging control means (25) for controlling the opening degree of the iris (2), the exposure time of the imaging element (6), and the gain amount of the gain control means according to the video signal from the signal processing means (9). The imaging control means (25) judges the brightness around according to the video signal from the signal processing means (9) when it is dark around and changes the exposure time of the imaging element (6).

摘要翻译： 一种图像处理装置，用于即使在黑暗的环境中也可以根据照度自动设定累积时间（曝光时间），并且顺利地跟随物体的运动。 图像处理装置包括：增益控制装置（7），用于对来自控制来自外部的光信号的光量的光圈（2）的信号进行聚焦的成像元件（6）进行视频信号的增益控制，并输出 视频信号; 信号处理装置（9），用于对来自增益控制装置（7）的输出信号进行信号处理; 以及用于根据来自信号处理装置的视频信号控制光圈（2）的开度，成像元件（6）的曝光时间和增益控制装置的增益量的成像控制装置（25） 9）。 成像控制装置（25）在暗处时根据来自信号处理装置（9）的视频信号来判断周围的亮度，并改变成像元件（6）的曝光时间。