Dominant Color Extraction Using Perceptual Rules to Produce Ambient Light Derived From Video Content
    1.
    发明申请
    Dominant Color Extraction Using Perceptual Rules to Produce Ambient Light Derived From Video Content 失效
    使用感知规则产生源自视频内容的环境光的主色提取

    公开(公告)号:US20070242162A1

    公开(公告)日:2007-10-18

    申请号:US11571283

    申请日:2005-06-27

    IPC分类号: H04N9/68

    摘要: Extracting and processing video content encoded in a rendered color space to be emulated by an ambient light source, using perceptual rules for intelligent dominant color selection. Steps include quantizing the video color space; performing dominant color extraction by using a mode, median, mean, or weighted average of pixel chromaticities; applying perceptual rules to further derive dominant chromaticities via [1] chromaticity transforms; [2] a weighted average using a pixel weighting function influenced by scene content; and [3] extended dominant color extraction where pixel weighting is reduced for majority pixels; and [4] transforming the dominant color chosen to the ambient light color space using tristimulus matrices. A color of interest can be further analyzed to produce a true dominant color, and past video frames can guide selection of dominant colors in future frames.

    摘要翻译: 提取和处理被渲染的颜色空间中编码的视频内容,以由环境光源模拟,使用智能主导颜色选择的感知规则。 步骤包括量化视频颜色空间; 通过使用像素色度的模式,中值,平均值或加权平均值来执行主要颜色提取; 应用感知规则通过[1]色度变换进一步导出主色; [2]使用受场景内容影响的像素加权函数的加权平均值; 和[3]扩展主色提取,其中大多数像素的像素加权减少; 和[4]使用三刺激矩阵将所选择的主要颜色转换为环境光色空间。 可以进一步分析感兴趣的颜色以产生真正的主色,并且过去的视频帧可以指导未来帧中的主色选择。

    PASSIVE DIFFUSER FRAME SYSTEM FOR AMBIENT LIGHTING USING A VIDEO DISPLAY UNIT AS LIGHT SOURCE
    2.
    发明申请
    PASSIVE DIFFUSER FRAME SYSTEM FOR AMBIENT LIGHTING USING A VIDEO DISPLAY UNIT AS LIGHT SOURCE 审中-公开
    使用视频显示单元进行环境照明的被动扩散框架系统作为光源

    公开(公告)号:US20070258015A1

    公开(公告)日:2007-11-08

    申请号:US11571287

    申请日:2005-06-27

    IPC分类号: H04N5/72

    摘要: Passive diffuser frame uses light emitted from a video display front face to produce cold emission ambient lighting effects, having a light guide capturing display image light and in optical communication with a distributive outer frame that redirects that light. The ambient light can be diffuse, non-image forming, directed as spill light or to a light pipe. A goniophotometric element or goniochromatic element allows changing intensity or color of ambient light as a function of viewing angles. The light guide can use a prism splitter or partial reflector, to redirect light and allow viewing the original display image simultaneously. Additive and subtractive color mixing and photoluminescent substances allow new chromaticities, including fluorescent colors and new colors outside of the gamut of output light colors inherently producible by the unaided video display unit.

    摘要翻译: 无源扩散器框架使用从视频显示器正面发射的光产生冷发射环境照明效果,具有捕获显示图像光的光导并与重定向该光的分布式外框光学通信。 环境光可以是扩散的,非图像形成的,作为溢出光或光管指示。 光度测量元件或色差元件允许改变作为视角的函数的环境光的强度或颜色。 光导可以使用棱镜分离器或部分反射器来重定向光并允许同时观看原始显示图像。 添加和减色混合和光致发光物质允许新的色度,包括荧光颜色和新颜色,在由无辅助视频显示单元固有地产生的输出光颜色的范围之外。