公开(公告)号：US4825293A

公开(公告)日：1989-04-25

申请号：US109014

申请日：1987-10-16

申请人： Kiyotaka Kobayashi ,  Masatoshi Tabei ,  Madoka Arashi ,  Yuzo Mizobuchi

发明人： Kiyotaka Kobayashi ,  Masatoshi Tabei ,  Madoka Arashi ,  Yuzo Mizobuchi

IPC分类号： H04N5/235

CPC分类号： H04N5/2352

摘要： A method for compensating changes which would otherwise be produced in a video output signal when the shutter speed exceeds a certain value, even though the same light level of the received image is maintained on the image pickup. In one embodiment, the shutter speed and/or aperture setting are adjusted to compensate. The amplification factor of the output video signal can also be adjusted. In other embodiments, gamma correction is effected separately for each primary color signal to compensate for the changes which affect the color signals in different amounts as the shutter speed is increased.

摘要翻译： 一种用于补偿当快门速度超过特定值时视频输出信号中将产生的变化的方法，即使在图像拾取器上保持接收到的图像的相同光级。 在一个实施例中，调节快门速度和/或孔径设置以进行补偿。 也可以调节输出视频信号的放大系数。 在其他实施例中，对于每个原色信号单独实现伽马校正，以补偿当快门速度增加时影响不同量的颜色信号的变化。