公开(公告)号：US07859595B2

公开(公告)日：2010-12-28

申请号：US10584007

申请日：2005-01-05

申请人： Srinivas Gutta ,  Elmo M. A. Diederiks ,  Huub Van Den Broek

发明人： Srinivas Gutta ,  Elmo M. A. Diederiks ,  Huub Van Den Broek

IPC分类号： H04N5/58

CPC分类号： H04N9/73

摘要： Flicker free operation of ambient light sources that emulate video content during low luminance conditions, where the ambient light source is output thresholded so that an on/off change of state of the ambient light source can be initiated after an intensity variable passes one or two thresholds. Output thresholding is used when extracting and processing video content encoded in a rendered color space, which can be decoded into frames tapped by an interframe interpolation process using only color information from selected frames, such as extracting average or other color information from an selected screen regions. Negative gamma correction helps prevent garish or inappropriate chromaticities and lumina.

摘要翻译： 环境光源的无闪烁操作，在低亮度条件下模拟视频内容，其中环境光源被输出阈值，使得在强度变量经过一个或两个阈值之后可以启动环境光源的状态的开/关改变 。 当提取和处理在被渲染的颜色空间中编码的视频内容时，使用输出阈值，该视频内容可以被解码成仅使用来自所选帧的颜色信息的帧间插值处理抽出的帧，例如从所选择的屏幕区域提取平均值或其他颜色信息 。 负伽马校正有助于防止粗糙或不适当的色度和亮度。