公开(公告)号：US08279352B2

公开(公告)日：2012-10-02

申请号：US12279155

申请日：2007-02-15

Applicant: Masatoshi Abe ,  Yutaka Arai ,  Hiroki Iwataka

Inventor： Masatoshi Abe ,  Yutaka Arai ,  Hiroki Iwataka

IPC: H04H5/52

CPC classification number: H04N5/20 ,  G09G5/00 ,  G09G2320/0233

Abstract: In a video display device of the present invention, a main control unit is equipped with a user interface for varying correction values set to a range correction unit and controls a range correction unit by acquiring the corresponding correction values from a storage unit in accordance with correction level information input by the user interface. The storage unit stores range correction values for the video display unit in correspondence with each piece of the correction level information input by the user interface. Thus, it is possible to correct luminance ranges to suit the user's preference without causing a large luminance reduction.

Abstract translation: 在本发明的视频显示装置中，主控制单元配备有用于改变设置到范围校正单元的校正值的用户界面，并且通过根据校正从存储单元获取对应的校正值来控制范围校正单元 用户界面输入的级别信息。 存储单元对应于由用户界面输入的每条校正级别信息存储视频显示单元的范围校正值。 因此，可以在不引起大的亮度降低的情况下校正亮度范围以适应用户的偏好。

公开(公告)号：US5589890A

公开(公告)日：1996-12-31

申请号：US314862

申请日：1994-09-29

Applicant: Massimo Mancuso ,  Rinaldo Poluzzi ,  Gianguido Rizzotto

Inventor： Massimo Mancuso ,  Rinaldo Poluzzi ,  Gianguido Rizzotto

IPC: H03H17/02 ,  H04N5/20 ,  H04H5/52

CPC classification number: H04N5/20 ,  H03H2222/02

Abstract: A filter architecture particularly for video applications, includes a filter section for separating high pass and low pass components from a video input signal conveying a video image, a brilliance estimating section for determining a mean brilliance value for each of a plurality of sections into which the video image is divided, first and second image characteristic adjusting sections for modifying the high pass and low pass components in response to the mean brilliance values, and a summing section for combining the modified high pass and low pass components to generate a filtered video signal. The first and second image characteristic adjusting sections operate using Fuzzy Logic which enables the filter architecture to effectively adjust contrast and brightness in the video image over a wide range of image brightness values.

Abstract translation: 特别是用于视频应用的滤波器结构包括用于从传送视频图像的视频输入信号中分离高通和低通分量的滤波器部分，用于确定多个部分中的每一个的平均亮度值的光亮度估计部分， 视频图像是用于响应于平均亮度值来修改高通和低通分量的分割的第一和第二图像特征调整部分，以及用于组合经修改的高通和低通分量以产生经滤波的视频信号的求和部分。 第一和第二图像特征调整部分使用模糊逻辑进行操作，其使滤波器结构能够在宽范围的图像亮度值上有效地调整视频图像中的对比度和亮度。