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1.发明公开
公开(公告)号：EP4460006A2
公开(公告)日：2024-11-06
申请号：EP24194668.0
申请日：2016-06-15
发明人： YU, Haoping , XU, Meng , WANG, Wei , DUANMU, Fanyi , MINAEE, Shervin
IPC分类号： H04N19/91
摘要： An encoding apparatus, decoding apparatus, and coding methods are provided. A method of decoding including receiving, by a decoder, a bitstream from an encoder, scanning, using the decoder, the bitstream to identify a first flag corresponding to a string of index values in a block other than a last string and a second flag corresponding to the last string of index values from the block, determining, by the decoder, that a context model used to encode the first flag is the same as the context model used to encode the second flag, and generating, by the decoder, a video frame using the context model
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公开(公告)号：EP3192263B1
公开(公告)日：2020-01-01
申请号：EP15784820.1
申请日：2015-10-02
发明人： YU, Haoping , WANG, Wei , MA, Zhan , XU, Meng
IPC分类号： H04N19/176 , H04N19/70 , H04N19/13 , H04N19/593 , H04N19/103 , H04N19/463 , H04N19/91 , H04N19/186 , H04N19/182 , H04N19/172 , H04N19/44
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公开(公告)号：EP3178224A1
公开(公告)日：2017-06-14
申请号：EP16748638.0
申请日：2016-01-29
发明人： MINAEE, Shervin , YU, Haoping
IPC分类号： H04N7/12
CPC分类号： H04N19/136 , G06K9/4661 , G06K9/6215 , H04N19/103 , H04N19/176 , H04N19/184 , H04N19/186 , H04N19/44 , H04N19/463 , H04N19/50 , H04N19/593
摘要： Embodiments are provided for compressing a color index map in video coding applications including screen content images. An embodiment method includes obtaining, at a video codec device, an image block, and generating a color index map comprising a plurality of entries and representing the image block. Each one of the entries is assigned a color index indicating a respective color. The method further includes assigning, in a correct prediction map, a first bit-value for each one of the entries that is predictable by a neighboring entry in the color index map, and a second bit-value for each one of the entries that is unpredictable by any neighboring entry in the color index map. Further, an actual value from the color index map for the each one of the entries that is unpredictable by any neighboring entry is added in a sequence of non-predictable color indices.
摘要翻译： 提供了用于在包括屏幕内容图像的视频编码应用中压缩色彩索引图的实施例。 一种实施例方法包括在视频编解码器设备处获得图像块，并且生成包括多个条目并且表示图像块的颜色索引图。 每个条目都被分配一个表示相应颜色的颜色索引。 该方法进一步包括在正确的预测映射中为在颜色索引映射中的相邻条目可预测的条目中的每一个条目分配第一位值，以及为每个条目中的每一个条目分配第二位值 颜色索引图中的任何相邻条目都不可预知。 此外，来自颜色索引图的，对于任何相邻条目不可预知的每个条目的实际值被添加在不可预测的颜色索引序列中。
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公开(公告)号：EP2891312A2
公开(公告)日：2015-07-08
申请号：EP13780446.4
申请日：2013-10-04
发明人： YU, Haoping , GAO, Wen
CPC分类号： H04N19/61 , H04N19/18 , H04N19/48 , H04N19/619
摘要： A method for video encoding comprising transforming a plurality of pixels to generate a first plurality of transform coefficients, quantizing the first plurality of transform coefficients to generate a plurality of quantized transform coefficients, computing a plurality of prediction pixels based on a plurality of reconstructed pixels which are prediction references for the plurality of pixels, transforming the plurality of prediction pixels to generate a second plurality of transform coefficients, and computing a plurality of prediction residual coefficients as a difference between the plurality of quantized transform coefficients and the second plurality of transform coefficients.
摘要翻译： 一种用于视频编码的方法，包括变换多个像素以产生第一多个变换系数，量化第一多个变换系数以产生多个量化变换系数，基于多个重构像素计算多个预测像素， 是多个像素的预测参考，变换多个预测像素以生成第二多个变换系数，并且计算多个预测残差系数作为多个量化变换系数和第二多个变换系数之间的差。
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5.发明公开IMPROVED INTRA PREDICTION IN LOSSLESS CODING IN HEVC 审中-公开HEV中的VERBESSERTE INTRA-VORHERSAGE BEI VERLUSTFREIER CODIERUNG
公开(公告)号：EP2839651A1
公开(公告)日：2015-02-25
申请号：EP13721177.7
申请日：2013-04-19
发明人： GAO, Wen , JIANG, Minqiang , YU, Haoping
IPC分类号： H04N7/26
CPC分类号： H04N19/593 , H04N19/11 , H04N19/13 , H04N19/134 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/51
摘要： A method comprising computing predicted values for a plurality of border pixels in a prediction unit (PU) using corresponding left, upper, and upper left adjacent neighboring pixels in the PU, and computing predicted values for a second plurality of pixels in the PU using sample based angular prediction (SAP), wherein the second plurality of pixels comprises all other pixels in the PU besides the plurality of border pixels.
摘要翻译： 一种方法，包括使用所述PU中的相应的左，上，左相邻相邻像素来计算预测单元（PU）中的多个边界像素的预测值，以及使用样本计算所述PU中的第二多个像素的预测值 基于角度预测（SAP），其中所述第二多个像素包括除了所述多个边界像素之外的所述PU中的所有其他像素。
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公开(公告)号：EP2777258A1
公开(公告)日：2014-09-17
申请号：EP12787304.0
申请日：2012-11-02
发明人： GAO, Wen , JIANG, Minqiang , YU, Haoping
IPC分类号： H04N7/26
CPC分类号： H04N19/593 , H04N19/11 , H04N19/137 , H04N19/147 , H04N19/174 , H04N19/176 , H04N19/182 , H04N19/91
摘要： A video codec comprising a processor configured to compute a reconstructed pixel based on a residual pixel and a first prediction pixel and compute a second prediction pixel in a directional intra prediction mode based on the reconstructed pixel, wherein the first and second prediction pixels are located in a same block of a video frame. A method for intra prediction comprising computing a prediction pixel adaptively based on a plurality of reconstructed neighboring pixels, wherein a distance between the prediction pixel and each of the plurality of reconstructed neighboring pixels is one.
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公开(公告)号：EP2727354A1
公开(公告)日：2014-05-07
申请号：EP12733836.6
申请日：2012-06-29
发明人： GAO, Wen , COOK, Gregory , YANG, Mingyuan , SONG, Jin , YU, Haoping
CPC分类号： H04N19/146 , H04N19/129 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/46 , H04N19/50 , H04N19/593 , H04N19/61
摘要： An apparatus used in video encoding comprising a processor configured to generate a prediction block for a current block, compute a difference between the current block and the prediction block to generate a residual block, wherein the residual block comprises a plurality of residual values, and if the plurality of residual values include at least one non-zero residual value comprising at least one sign and at least one residual level, perform entropy encoding on the at least one sign; and perform entropy encoding on the at least one residual level, wherein one non-residual value comprises one sign and one residual level.
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公开(公告)号：EP2705668A1
公开(公告)日：2014-03-12
申请号：EP12735763.0
申请日：2012-07-11
发明人： GAO, Wen , SONG, Jin , YANG, Mingyuan , YU, Haoping
CPC分类号： H04N19/61 , H04N19/103 , H04N19/11 , H04N19/12 , H04N19/124 , H04N19/147 , H04N19/154 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/46 , H04N19/593 , H04N19/90
摘要： Systems and methods for improved intra prediction in video coding. The disclosure provides an intra prediction scheme that not only uses pixels in neighboring blocks as external reference pixels but also uses pixels within a current block as internal reference pixels. Block residuals thus obtained may be lossy or lossless encoded.
摘要翻译： 一种解码方法，包括接收对应于残差块的比特流，解码具有表示为变换系数的多个残余像素的残差块，以及基于残差像素计算重建块。 重建块包括重建像素，并且使用帧内预测模式，以基于重建块中的重建像素垂直或水平地顺序生成预测像素。 重建块包括基于初始预测像素的初始重构像素。 帧内预测模式用于基于位于重建块之前解码的相邻块中的外部参考像素来生成初始预测像素。 计算重建块包括将预测像素与残差像素组合以产生用于产生附加预测像素的附加重构像素。 根据帧内预测模式的预测顺序，附加预测像素位于每个附加预测像素之前的一个位置。
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公开(公告)号：EP3614231A1
公开(公告)日：2020-02-26
申请号：EP17909607.8
申请日：2017-12-31
发明人： LI, Yi , YU, Haoping
IPC分类号： G06F3/01 , G06F3/0346 , G06T19/00
摘要： This application pertains to the field of VR technologies, and discloses a method and an apparatus for determining experience quality of VR multimedia. The method includes: in a process of playing VR multimedia, obtaining a first sensory parameter, a second sensory parameter, and a third sensory parameter of the VR multimedia, where the first sensory parameter, the second sensory parameter, and the third sensory parameter are obtained by performing sampling separately according to at least two same perceptual dimensions, and the first sensory parameter, the second sensory parameter, and the third sensory parameter are respectively parameters that affect fidelity experience, enjoyment experience, and interaction experience; and determining a MOS of the VR multimedia based on the first sensory parameter, the second sensory parameter, and the third sensory parameter of the VR multimedia. Because the third sensory parameter is a parameter that affects the interaction experience, when the MOS of the VR multimedia is determined based on the third sensory parameter in this application, an interaction feature of the VR multimedia is considered. Therefore, the determined experience quality of the VR multimedia is more accurate.
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公开(公告)号：EP2461589B1
公开(公告)日：2019-07-10
申请号：EP10840460.9
申请日：2010-11-25
发明人： WANG, Dong , YANG, Mingyuan , SONG, Jin , YU, Haoping
IPC分类号： H04N19/105 , H04N19/159 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/11 , H04N19/18
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