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公开(公告)号:US09020254B2
公开(公告)日:2015-04-28
申请号:US13327551
申请日:2011-12-15
IPC分类号: G06K9/36 , H04N19/154 , H04N19/40 , H04N19/192
CPC分类号: H04N19/154 , H04N19/192 , H04N19/40
摘要: Described is a technology by which an image is transcoded to a desired quality measure (e.g., PSNR). A quality measure of transcoded image data is checked against a desired quality measure, and if a desired quality measure is not achieved, a different quality level is iteratively provided to attempt to re-transcode the image until the desired quality measure is achieved.
摘要翻译: 描述了将图像转码为期望质量测量(例如,PSNR)的技术。 针对所需的质量度量检查代码转换的图像数据的质量测量,并且如果未实现期望的质量测量,则迭代地提供不同的质量水平以尝试重新转码图像,直到实现期望的质量测量。
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公开(公告)号:US20130156310A1
公开(公告)日:2013-06-20
申请号:US13327551
申请日:2011-12-15
IPC分类号: G06K9/46
CPC分类号: H04N19/154 , H04N19/192 , H04N19/40
摘要: Described is a technology by which an image is transcoded to a desired quality measure (e.g., PSNR). A quality measure of transcoded image data is checked against a desired quality measure, and if a desired quality measure is not achieved, a different quality level is iteratively provided to attempt to re-transcode the image until the desired quality measure is achieved.
摘要翻译: 描述了将图像转码为期望质量测量(例如,PSNR)的技术。 针对所需的质量度量检查代码转换的图像数据的质量测量,并且如果未实现期望的质量测量,则迭代地提供不同的质量水平以尝试重新转码图像,直到实现期望的质量测量。
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公开(公告)号:US20130156309A1
公开(公告)日:2013-06-20
申请号:US13327537
申请日:2011-12-15
申请人: Yisheng Yao , Ke-Cheng Huang , Emmanuel Papirakis
发明人: Yisheng Yao , Ke-Cheng Huang , Emmanuel Papirakis
IPC分类号: G06K9/36
摘要: Described is a technology by which a raster graphics image file (e.g., a PNG) containing pixels having color component data and alpha channel data (e.g., RGBA data) is transcoded into a smaller Palette Indexed format with non-noticeable and/or virtually no loss. Hextrees are used to represent the pixels of the image, such as one hextree for each subset (segment) of the image's pixels, where alpha channel data distribution may be used to determine each segment. A palette containing sets of alpha and color values is generated from the hextrees, with the transcoded image data provided by representing the pixel data as indexes to the palette.
摘要翻译: 描述了一种技术,通过该技术将包含具有颜色分量数据和阿尔法通道数据(例如,RGBA数据)的像素的光栅图形图像文件(例如,PNG)转码成较小的调色板索引格式,具有不显着和/或实际上没有 失利。 Hextrees用于表示图像的像素,例如图像像素的每个子集(片段)的一个hextree,其中可以使用α通道数据分布来确定每个片段。 从hextrees生成包含Alpha和颜色值集的调色板,通过将像素数据表示为调色板的索引来提供代码转换的图像数据。
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公开(公告)号:US08571311B2
公开(公告)日:2013-10-29
申请号:US13327537
申请日:2011-12-15
申请人: Yisheng Yao , Ke-Cheng Huang , Emmanuel Papirakis
发明人: Yisheng Yao , Ke-Cheng Huang , Emmanuel Papirakis
IPC分类号: G06K9/36
摘要: Described is a technology by which a raster graphics image file (e.g., a PNG) containing pixels having color component data and alpha channel data (e.g., RGBA data) is transcoded into a smaller Palette Indexed format with non-noticeable and/or virtually no loss. Hextrees are used to represent the pixels of the image, such as one hextree for each subset (segment) of the image's pixels, where alpha channel data distribution may be used to determine each segment. A palette containing sets of alpha and color values is generated from the hextrees, with the transcoded image data provided by representing the pixel data as indexes to the palette.
摘要翻译: 描述了一种技术,通过该技术将包含具有颜色分量数据和阿尔法通道数据(例如,RGBA数据)的像素的光栅图形图像文件(例如,PNG)转码成较小的调色板索引格式,具有不显着和/或实际上没有 失利。 Hextrees用于表示图像的像素,例如图像像素的每个子集(片段)的一个hextree,其中可以使用α通道数据分布来确定每个片段。 从hextrees生成包含Alpha和颜色值集的调色板,通过将像素数据表示为调色板的索引来提供代码转换的图像数据。
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公开(公告)号:US08509067B2
公开(公告)日:2013-08-13
申请号:US13171174
申请日:2011-06-28
申请人: Emmanuel Papirakis
发明人: Emmanuel Papirakis
IPC分类号: H04J1/16
CPC分类号: H04L47/25 , H04L47/283 , H04L47/29 , H04L47/30
摘要: A method for controlling network congestion includes estimating a queue size, entering a first mode of operation if the estimated queue size is below a first threshold, and entering a second mode of operation if the estimated queue size is above a second threshold.
摘要翻译: 一种用于控制网络拥塞的方法包括:如果所估计的队列大小低于第一阈值,则估计队列大小,进入第一操作模式;如果所估计的队列大小高于第二阈值,则进入第二操作模式。
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公开(公告)号:US07983156B1
公开(公告)日:2011-07-19
申请号:US11264901
申请日:2005-11-02
申请人: Emmanuel Papirakis
发明人: Emmanuel Papirakis
IPC分类号: H04J1/16
CPC分类号: H04L47/25 , H04L47/283 , H04L47/29 , H04L47/30
摘要: A method for controlling network congestion includes estimating a queue size, entering a first mode of operation if the estimated queue size is below a first threshold, and entering a second mode of operation if the estimated queue size is above a second threshold.
摘要翻译: 一种用于控制网络拥塞的方法包括:如果所估计的队列大小低于第一阈值,则估计队列大小,进入第一操作模式;如果所估计的队列大小高于第二阈值,则进入第二操作模式。
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公开(公告)号:US20110255403A1
公开(公告)日:2011-10-20
申请号:US13171174
申请日:2011-06-28
申请人: Emmanuel Papirakis
发明人: Emmanuel Papirakis
IPC分类号: H04L12/26
CPC分类号: H04L47/25 , H04L47/283 , H04L47/29 , H04L47/30
摘要: A method for controlling network congestion includes estimating a queue size, entering a first mode of operation if the estimated queue size is below a first threshold, and entering a second mode of operation if the estimated queue size is above a second threshold.
摘要翻译: 一种用于控制网络拥塞的方法包括:如果所估计的队列大小低于第一阈值,则估计队列大小,进入第一操作模式;如果所估计的队列大小高于第二阈值,则进入第二操作模式。
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公开(公告)号:US08788612B1
公开(公告)日:2014-07-22
申请号:US11462950
申请日:2006-08-07
IPC分类号: G06F15/16
CPC分类号: H04L67/26 , G06F17/30902 , H04L67/02 , H04L67/2823
摘要: A system, apparatus, and method for improving the user experience when accessing web pages containing embedded objects over a network. In one embodiment, information regarding the contents of a locally accessible cache is added to a request directed to a web server. The information is used to control certain aspects of a pre-fetch process that is designed to reduce network latency affects and improve network resource utilization, thereby improving a user's experience. The cache contents information may be provided to an intermediate server via a modification to an existing request-response protocol, with the information being encoded or compressed if desired to reduce data transport requirements. The information is used by the intermediate server to determine whether to request an embedded object referenced in the requested resource or web page, and to determine if a browser having access to the cache will request the object or access the object from the local cache.
摘要翻译: 一种用于在通过网络访问包含嵌入对象的网页时改善用户体验的系统,装置和方法。 在一个实施例中,关于本地可访问高速缓存的内容的信息被添加到指向web服务器的请求。 该信息用于控制预取进程的某些方面,旨在减少网络延迟影响并提高网络资源利用率,从而改善用户体验。 缓存内容信息可以经由对现有请求 - 响应协议的修改来提供给中间服务器,如果需要,信息被编码或压缩以减少数据传输要求。 中间服务器使用该信息来确定是否请求在所请求的资源或网页中引用的嵌入对象,并且确定是否有访问高速缓存的浏览器将请求对象或从本地高速缓存访问该对象。
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