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公开(公告)号：US09948933B2
公开(公告)日：2018-04-17
申请号：US14656516
申请日：2015-03-12
发明人： Li Zhang , Jianle Chen , Marta Karczewicz , Joel Sole Rojals , Woo-Shik Kim
IPC分类号： H04N19/103 , H04N19/60 , H04N19/126 , H04N19/154 , H04N19/186 , H04N19/196 , H04N19/176 , H04N19/33 , H04N19/44 , H04N19/61 , H04N19/11 , H04N19/12 , H04N19/136 , H04N19/18 , H04N19/70 , H04N19/134 , H04N19/102 , H04N19/14 , H04N19/157 , H04N19/184
CPC分类号： H04N19/126 , H04N19/102 , H04N19/103 , H04N19/11 , H04N19/12 , H04N19/134 , H04N19/136 , H04N19/14 , H04N19/154 , H04N19/157 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/186 , H04N19/196 , H04N19/33 , H04N19/44 , H04N19/60 , H04N19/61 , H04N19/70
摘要： In general, this disclosure describes techniques for coding video blocks using a color-space conversion process. A video coder, such as a video encoder or a video decoder, may determine whether to use color-space conversion for a coding unit and set a value of a syntax element of the coding unit to indicate the use of color-space conversion. The video coder may apply a color-space transform process in encoding the coding unit. The video coder may decode the syntax element of the coding unit. The video coder may determine whether a value of the syntax element indicates that the coding unit was encoded using color-space conversion. The video coder may apply a color-space inverse transform process in decoding the coding unit in response to determining that the syntax element indicates that the coding unit was coded using color-space conversion.
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公开(公告)号：US09648330B2
公开(公告)日：2017-05-09
申请号：US14331166
申请日：2014-07-14
发明人： Wei Pu , Woo-Shik Kim , Jianle Chen , Joel Sole Rojals , Liwei Guo , Chao Pang , Rajan Laxman Joshi , Marta Karczewicz
IPC分类号： H04N19/186 , H04N19/147 , H04N19/105 , H04N19/61 , H04N19/176
CPC分类号： H04N19/147 , H04N19/105 , H04N19/176 , H04N19/186 , H04N19/61
摘要： A device for decoding video data includes a memory configured to store video data, and at least one processor. The at least one processor may be configured to: determine luma residual samples for a block of video data, determine predictive chroma residual samples for the block of video data, scale the luma residual samples with a scale factor to produce scaled luma residual samples, and determine updated chroma residual samples based on the predictive chroma residual samples and the scaled luma residual samples.
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公开(公告)号：US09497473B2
公开(公告)日：2016-11-15
申请号：US14504097
申请日：2014-10-01
发明人： Wei Pu , Jianle Chen , Marta Karczewicz , Woo-Shik Kim , Joel Sole Rojals
IPC分类号： H04N19/70 , H04N19/44 , H04N19/597 , H04N19/105 , H04N19/136 , H04N19/50
CPC分类号： H04N19/44 , H04N19/105 , H04N19/136 , H04N19/50 , H04N19/597 , H04N19/70
摘要： In one example, a device for coding video data includes a memory configured to store video data, and a video coder configured to code a value for a syntax element representative of whether a high bit depth is enabled for the video data, and when the value for the syntax element indicates that the high bit depth is enabled: code a value for a syntax element representative of the high bit depth for one or more parameters of the video data, code values for the parameters such that the values for the parameters are representative of bit depths that are based on the value for the syntax element representative of the high bit depth, and code the video data based at least in part on the values for the parameters.
摘要翻译： 在一个示例中，用于编码视频数据的设备包括被配置为存储视频数据的存储器，以及视频编码器，被配置为对代表视频数据的高位深度是否启用的语法元素的值进行编码， 因为语法元素指示高位深度被启用：为代表视频数据的一个或多个参数的代表高比特深度的语法元素的值编码，用于参数的代码值使得参数的值代表 基于表示高位深度的语法元素的值的位深度，并且至少部分地基于参数的值对视频数据进行编码。
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公开(公告)号：US20150264402A1
公开(公告)日：2015-09-17
申请号：US14656526
申请日：2015-03-12
发明人： Li Zhang , Jianle Chen , Marta Karczewicz , Joel Sole Rojals , Woo-Shik Kim
IPC分类号： H04N19/60 , H04N19/18 , H04N19/186 , H04N19/136 , H04N19/12 , H04N19/11
CPC分类号： H04N19/126 , H04N19/102 , H04N19/103 , H04N19/11 , H04N19/12 , H04N19/134 , H04N19/136 , H04N19/14 , H04N19/154 , H04N19/157 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/186 , H04N19/196 , H04N19/33 , H04N19/44 , H04N19/60 , H04N19/61 , H04N19/70
摘要： In general, this disclosure describes techniques for coding video blocks using a color-space conversion process. A video coder, such as a video encoder or a video decoder, may determine a bit-depth of a luma component of the video data and a bit-depth of a chroma component of the video data. In response to the bit-depth of the luma component being different than the bit depth of the chroma component, the video coder may modify one or both of the bit depth of the luma component and the bit depth of the chroma component such that the bit depths are equal. The video coder may further apply the color-space transform process in encoding the video data.
摘要翻译： 通常，本公开描述了使用颜色空间转换处理对视频块进行编码的技术。 诸如视频编码器或视频解码器的视频编码器可以确定视频数据的亮度分量的比特深度和视频数据的色度分量的位深度。 响应于亮度分量的比特深度不同于色度分量的比特深度，视频编码器可以修改亮度分量的比特深度和色度分量的比特深度中的一个或两个，使得比特 深度相等。 视频编码器还可以在编码视频数据时进一步应用色空间变换处理。
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公开(公告)号：US10397607B2
公开(公告)日：2019-08-27
申请号：US14528794
申请日：2014-10-30
发明人： Woo-Shik Kim , Wei Pu , Jianle Chen , Joel Sole Rojals , Liwei Guo , Marta Karczewicz
IPC分类号： H04N19/59 , H04N19/176 , H04N19/103 , H04N19/136 , H04N19/105 , H04N19/50 , H04N19/186 , H04N19/61
摘要： A method of decoding video data includes decoding a first block of video data to produce a block of reconstructed luma residual values and a block of predicted chroma residual values, wherein the block of video data has one of a 4:2:0 or a 4:2:2 chroma sub-sampling format. The method further includes performing a color residual prediction process to reconstruct a block of chroma residual values for the first block of video data using a subset of the reconstructed luma residual values as luma predictors for the block of predicted chroma residual values.
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公开(公告)号：US10085027B2
公开(公告)日：2018-09-25
申请号：US14737252
申请日：2015-06-11
发明人： Chengjie Tu , Wei-Jung Chien , Xianglin Wang , Jaehong Chon , In Suk Chong , Marta Karczewicz , Woo-Shik Kim , Xin Zhao
IPC分类号： H04N11/02 , H04N19/14 , H04N19/147 , H04N19/176 , H04N19/119 , H04N19/109 , H04N19/157 , H04N19/567 , H04N19/174
CPC分类号： H04N19/14 , H04N19/109 , H04N19/119 , H04N19/147 , H04N19/157 , H04N19/174 , H04N19/176 , H04N19/567
摘要： A video encoding device comprises a memory configured and at least one processor configured to: determine whether a metric meets a condition based on statistics, wherein the statistics are associated with a first video encoding mode checking order and a second video encoding mode checking order, responsive to determining that the metric meets the condition, select a first encoding mode checking order to encode the first block of video data responsive to determining that the condition is not met, select a second encoding mode checking order different from the first encoding mode checking order to encode the first block of video data, update the statistics based on the selected first or second encoding mode checking order, and encode a second block of video data, based on the updated statistics, and using the first or second mode checking order.
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公开(公告)号：US20150124865A1
公开(公告)日：2015-05-07
申请号：US14528794
申请日：2014-10-30
发明人： Woo-Shik Kim , Wei Pu , Jianle Chen , Joel Sole Rojals , Liwei Guo , Marta Karczewicz
IPC分类号： H04N19/59 , H04N19/176 , H04N19/103 , H04N19/136
CPC分类号： H04N19/59 , H04N19/103 , H04N19/105 , H04N19/136 , H04N19/176 , H04N19/186 , H04N19/50 , H04N19/61
摘要： A method of decoding video data includes decoding a first block of video data to produce a block of reconstructed luma residual values and a block of predicted chroma residual values, wherein the block of video data has one of a 4:2:0 or a 4:2:2 chroma sub-sampling format. The method further includes performing a color residual prediction process to reconstruct a block of chroma residual values for the first block of video data using a subset of the reconstructed luma residual values as luma predictors for the block of predicted chroma residual values.
摘要翻译： 解码视频数据的方法包括解码第一视频数据块以产生重构亮度残差值块和预测色度残差值块，其中视频数据块具有4:2:0或4中的一个 ：2：2色度次采样格式。 该方法还包括执行彩色残差预测处理，以使用重建的亮度残差值的子集作为预测色度残差值块的亮度预测器来重构第一视频数据块的色度残差块。
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公开(公告)号：US20150117519A1
公开(公告)日：2015-04-30
申请号：US14524601
申请日：2014-10-27
发明人： Woo-Shik Kim , Rajan Laxman Joshi , Wei Pu , Joel Sole Rojals , Jianle Chen , Marta Karczewicz
IPC分类号： H04N19/186
CPC分类号： H04N19/186 , H04N19/105 , H04N19/136 , H04N19/146 , H04N19/176
摘要： A device for decoding video data includes a memory configured to store video data, and at least one processor. The at least one processor is configured to: determine a first bit-depth of luma residual samples for a block of video data, determine a second bit-depth of predicted chroma residual samples for the block of video data, adjust the luma residual samples based on the first bit-depth and the second bit-depth to produce bit-depth adjusted luma residual samples, determine chroma residual samples for the block of video data based on the bit-depth adjusted luma residual samples and the predicted chroma residual samples, and decode the block of video data based on the luma residual samples and the chroma residual samples.
摘要翻译： 用于解码视频数据的设备包括被配置为存储视频数据的存储器以及至少一个处理器。 所述至少一个处理器被配置为：确定视频数据块的亮度残差样本的第一位深度，确定所述视频数据块的预测色度残差样本的第二位深度，基于所述视差数据块调整所述亮度残差样本 在第一位深度和第二位深度上，以产生位深度调整的亮度残差样本，基于比特深度调整的亮度残差样本和预测色残余样本，确定视频数据块的色度残差样本，以及 基于亮度残差样本和色度残差样本对视频数据块进行解码。
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公开(公告)号：US09906790B2
公开(公告)日：2018-02-27
申请号：US14644702
申请日：2015-03-11
发明人： Woo-Shik Kim , Jianle Chen , Joel Sole Rojals , Marta Karczewicz
IPC分类号： H04N7/12 , H04N19/117 , H04N19/182 , H04N19/176 , H04N19/122 , H04N19/86 , H04N19/14 , H04N19/82
CPC分类号： H04N19/117 , H04N19/122 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/82 , H04N19/86
摘要： The disclosure describes deblock filtering techniques. A video coder may determine an amount by which to deblock filter a pixel value of a pixel based on a geometrical distance from the pixel to a boundary and a pixel value difference between pixel values of at least two pixels. The video coder may then deblock filter the pixel based on the determined amount.
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公开(公告)号：US20160261870A1
公开(公告)日：2016-09-08
申请号：US14737271
申请日：2015-06-11
发明人： Chengjie Tu , Wei-Jung Chien , Xianglin Wang , Jaehong Chon , In Suk Chong , Marta Karczewicz , Woo-Shik Kim , Xin Zhao
IPC分类号： H04N19/147 , H04N19/14 , H04N19/174 , H04N19/176
CPC分类号： H04N19/14 , H04N19/109 , H04N19/119 , H04N19/147 , H04N19/157 , H04N19/174 , H04N19/176 , H04N19/567
摘要： A video encoding device comprises a memory configured to store video data and at least one processor configured to: select one of a full rate-distortion (RD) checking scheme or a fast RD checking scheme, determine an RD cost associated with encoding a block of the video data based on the selected full RD checking scheme or fast RD checking scheme, determine a partitioning scheme for the block based on the determined RD cost, and encode the block using the determined partitioning scheme based on the determined RD cost.
摘要翻译： 视频编码装置包括：存储器，被配置为存储视频数据;以及至少一个处理器，被配置为：选择全速率失真（RD）检查方案或快速RD检查方案之一，确定与编码块 基于所选择的完整RD检查方案或快速RD检查方案的视频数据基于确定的RD成本确定块的分区方案，并且基于确定的RD成本使用确定的分区方案对块进行编码。
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