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公开(公告)号:US20090060026A1
公开(公告)日:2009-03-05
申请号:US11846836
申请日:2007-08-29
申请人: Yong-Gab Park , John E. Crosbie , Shrikant Acharya
发明人: Yong-Gab Park , John E. Crosbie , Shrikant Acharya
IPC分类号: H04N11/02
CPC分类号: H04N5/44504 , G09G5/026 , G09G5/14 , G09G2340/10 , G09G2340/12 , H04N5/45 , H04N21/4316 , H04N21/4348 , H04N21/435
摘要: A system is provided for processing video images for display. In one example, the system comprises a stream parser for retrieving a compressed main video data and a sub-picture identifier. A video decoder generates a main video image having a main video intensity value for each pixel in the main video. A sub-picture decoder determines a sub-picture image based on the sub-picture identifier. The sub-picture image includes a pixel data for each pixel in the sub-picture image indicative of a sub-picture pixel type including a background pixel type and a pattern pixel type. Each pixel includes a command code indicative of a background contrast level, a pattern contrast level, a background color level and a pattern color level. An intensity formatter generates a sub-picture pixel intensity for each pixel in the sub-picture image. A preprocessing function calculates, for each sub-picture pixel, a sub-picture pixel intensity by alpha-blending the sub-picture pixel with no main video pixel when the background color intensity is greater than the pattern color intensity. A filtering function performs anti-aliasing filtering on the sub-picture image. A sub-picture alpha-blending function combines the sub-picture image with the main video image using alpha-blending.
摘要翻译: 提供用于处理视频图像以进行显示的系统。 在一个示例中,该系统包括用于检索压缩的主视频数据和子图像标识符的流解析器。 视频解码器生成主视频中的每个像素具有主视频强度值的主视频图像。 子图像解码器基于子图像标识符来确定子图像图像。 副图像图像包括用于指示包括背景像素类型和图案像素类型的子图像像素类型的子图像图像中的每个像素的像素数据。 每个像素包括指示背景对比度级别,图案对比度级别,背景颜色级别和图案颜色级别的命令代码。 强度格式器对子图像中的每个像素生成子图像像素强度。 当背景颜色强度大于图案颜色强度时,预处理功能针对每个子图像像素计算副图像像素强度,该副图像像素强度通过对不具有主视频像素的子图像像素进行alpha混合来计算。 滤波功能对子图像进行抗混叠滤波。 子图像阿尔法混合功能使用阿尔法混合将副图像图像与主要视频图像组合。
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公开(公告)号:US08532170B2
公开(公告)日:2013-09-10
申请号:US11846836
申请日:2007-08-29
申请人: Yong-Gab Park , John E. Crosbie , Shrikant Acharya
发明人: Yong-Gab Park , John E. Crosbie , Shrikant Acharya
CPC分类号: H04N5/44504 , G09G5/026 , G09G5/14 , G09G2340/10 , G09G2340/12 , H04N5/45 , H04N21/4316 , H04N21/4348 , H04N21/435
摘要: A system is provided for processing video images for display. In one example, the system comprises a stream parser for retrieving a compressed main video data and a sub-picture identifier. A video decoder generates a main video image having a main video intensity value for each pixel in the main video. A sub-picture decoder determines a sub-picture image based on the sub-picture identifier. The sub-picture image includes a pixel data for each pixel in the sub-picture image indicative of a sub-picture pixel type including a background pixel type and a pattern pixel type. Each pixel includes a command code indicative of a background contrast level, a pattern contrast level, a background color level and a pattern color level. An intensity formatter generates a sub-picture pixel intensity for each pixel in the sub-picture image. A preprocessing function calculates, for each sub-picture pixel, a sub-picture pixel intensity by alpha-blending the sub-picture pixel with no main video pixel when the background color intensity is greater than the pattern color intensity. A filtering function performs anti-aliasing filtering on the sub-picture image. A sub-picture alpha-blending function combines the sub-picture image with the main video image using alpha-blending.
摘要翻译: 提供用于处理视频图像以进行显示的系统。 在一个示例中,该系统包括用于检索压缩的主视频数据和子图像标识符的流解析器。 视频解码器生成主视频中的每个像素具有主视频强度值的主视频图像。 子图像解码器基于子图像标识符来确定子图像图像。 副图像图像包括用于指示包括背景像素类型和图案像素类型的子图像像素类型的子图像图像中的每个像素的像素数据。 每个像素包括指示背景对比度级别,图案对比度级别,背景颜色级别和图案颜色级别的命令代码。 强度格式器对子图像中的每个像素生成子图像像素强度。 当背景颜色强度大于图案颜色强度时,预处理功能针对每个子图像像素计算副图像像素强度,该副图像像素强度通过对不具有主视频像素的子图像像素进行alpha混合来计算。 滤波功能对子图像进行抗混叠滤波。 子图像阿尔法混合功能使用阿尔法混合将副图像图像与主要视频图像组合。
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公开(公告)号:US07434166B2
公开(公告)日:2008-10-07
申请号:US10859653
申请日:2004-06-02
CPC分类号: H04L63/0428 , G03B21/10 , G03B2206/00 , H04N21/4122 , H04N21/43615 , H04N21/43637 , H04N21/441 , H04N21/4753 , H04W12/06
摘要: A system and method for interactive management of multiple wireless devices (such as PDA's or desktop or laptop computers) making graphical or video presentations while connected wirelessly to a display device whose wireless module converts the transmitted data from the wireless devices to the required format for display.
摘要翻译: 一种用于交互式管理多个无线设备(例如PDA或台式或膝上型计算机)的系统和方法,其进行图形或视频呈现,同时无线地连接到其无线模块将所传送的数据从无线设备转换为所需的格式以用于显示的显示设备 。
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