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公开(公告)号：US20130114728A1
公开(公告)日：2013-05-09
申请号：US13298771
申请日：2011-11-17
IPC分类号： H04N7/30
CPC分类号： H04N19/44 , H04N19/124 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/18 , H04N19/184
摘要： A technique for decoding video including receiving quantized coefficient level values representative of a block of video representative of a plurality of pixels and a quantization parameter related to the block of video. The technique includes de-quantizing the quantized coefficient level values based upon the quantized coefficient level values and the quantization parameter only if the quantized coefficient level values and the quantization parameter are jointly within a predefined range of acceptable values. The technique also includes inverse transforming the dequantized coefficients to determine a decoded residue.
摘要翻译： 一种用于解码视频的技术，包括接收代表多个像素的视频块的量化系数电平值和与该视频块有关的量化参数。 该技术包括仅当量化系数电平值和量化参数共同在可接受值的预定范围内时才基于量化系数电平值和量化参数对量化系数电平值进行去量化。 该技术还包括逆变换去量化系数以确定解码残留。
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公开(公告)号：US20130114685A1
公开(公告)日：2013-05-09
申请号：US13291004
申请日：2011-11-07
IPC分类号： H04N7/26
CPC分类号： H04N19/625 , H04N19/126 , H04N19/156 , H04N19/18 , H04N19/42 , H04N19/44
摘要： A technique for decoding video including receiving quantized coefficient level values representative of a block of video representative of a plurality of pixels and a quantization parameter related to the block of video. The technique includes de-quantizing the quantized coefficient level values based upon the quantized coefficient level values and the quantization parameter only if the quantized coefficient level values and the quantization parameter are jointly within a predefined range of acceptable values. The technique also includes inverse transforming the dequantized coefficients to determine a decoded residue.
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公开(公告)号：US20130114668A1
公开(公告)日：2013-05-09
申请号：US13291015
申请日：2011-11-07
申请人： Kiran MISRA , Christopher A. SEGALL
发明人： Kiran MISRA , Christopher A. SEGALL
CPC分类号： H04N19/13 , H04N19/11 , H04N19/117 , H04N19/124 , H04N19/15 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/44 , H04N19/46 , H04N19/593 , H04N19/70 , H04N19/86 , H04N19/91
摘要： A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding that includes at least two decoding modes, the first mode decoding the bitstream based upon a probability estimate which is based upon at least one of spatially and temporally adjacent syntax element values to a current syntax element being decoded, the second mode decoding the bitstream not based upon a probability estimate based upon other syntax elements to the current syntax element being decoded. The coding decodes the current syntax element using the first mode if the current syntax element is intra-coded and selecting between sets probable modes with different probabilities. The coding decodes the current syntax element using the second mode if the current syntax element is intra-coded and if selecting among one of the second set of probable modes.
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公开(公告)号：US20130003827A1
公开(公告)日：2013-01-03
申请号：US13174564
申请日：2011-06-30
申请人： Kiran MISRA , Christopher A. SEGALL
发明人： Kiran MISRA , Christopher A. SEGALL
IPC分类号： H04N7/32
CPC分类号： H04N19/577 , H04N19/13 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/436 , H04N19/91
摘要： Technique for initialization of encoders and decoders. In some cases, the decoder receives a slice and identifies if the slice is either a forward predicted B-slice or a backward predicted B-slice, and not both a forward and backward predicted B-slice, and based upon this identification initializes, using a P-slice technique, a context associated with the slice.
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公开(公告)号：US20130114686A1
公开(公告)日：2013-05-09
申请号：US13291950
申请日：2011-11-08
申请人： Kiran MISRA , Christopher A. SEGALL
发明人： Kiran MISRA , Christopher A. SEGALL
CPC分类号： H04N19/423 , H04N19/44 , H04N19/52 , H04N19/91
摘要： A decoder receives a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and decodes the bitstream using context adaptive binary arithmetic coding. The coding including at least two decoding modes, the first mode decoding the bitstream based upon a probability estimate which is based upon at least one of spatially and temporally adjacent syntax element values to a current syntax element being decoded, the second mode decoding the bitstream not based upon a probability estimate based upon other syntax elements to the current syntax element being decoded. The context adaptive binary arithmetic coding decoding the current syntax element using the second mode if the current syntax element belongs to a block which is coded using inter-predicted and a motion vector predictor index is signaled explicitly and selecting between a first motion vector predictor set and a second motion vector predictor set.
摘要翻译： 解码器接收包含表示多个像素的视频块的量化系数的比特流，并且使用上下文自适应二进制算术编码对比特流进行解码。 所述编码包括至少两个解码模式，所述第一模式基于基于空间和时间上相邻的语法元素值中的至少一个与正在解码的当前语法元素的概率估计解码所述比特流，所述第二模式不对所述比特流进行解码 基于基于正在解码的当前语法元素的其他语法元素的概率估计。 如果当前语法元素属于使用帧间预测编码的块并且明确地发信号通知运动矢量预测器索引，则上下文自适应二进制算术编码使用第二模式解码当前语法元素，并且在第一运动矢量预测器组和 第二运动矢量预测器组。
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公开(公告)号：US20130003830A1
公开(公告)日：2013-01-03
申请号：US13294100
申请日：2011-11-10
申请人： Kiran MISRA , Christopher A. SEGALL
发明人： Kiran MISRA , Christopher A. SEGALL
IPC分类号： H04N7/32
CPC分类号： H04N19/13 , H04N19/157 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/44 , H04N19/46 , H04N19/577
摘要： Technique for initialization of encoders and decoders. In some cases, the decoder receives a slice and identifies if the slice is either a forward predicted B-slice or a backward predicted B-slice, and not both a forward and backward predicted B-slice, and based upon this identification initializes, using a P-slice technique, a context associated with the slice.
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公开(公告)号：US20130114683A1
公开(公告)日：2013-05-09
申请号：US13290388
申请日：2011-11-07
申请人： Jie ZHAO , Christopher A. SEGALL
发明人： Jie ZHAO , Christopher A. SEGALL
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/436 , H04N19/82
摘要： A decoder decodes video received in a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and a plurality of offset type characteristics. Each of the plurality of offset type characteristics is associated with a respective block of the video. A deblocking process deblocks the video to reduce artifacts proximate boundaries between the blocks of the video. A sample adaptive offset process classifies a pixel based upon the offset type characteristic associated with the respective block of the video using a threshold criteria.
摘要翻译： 解码器解码在包含表示多个像素的视频块的量化系数和多个偏移类型特性的比特流中接收的视频。 多个偏移类型特征中的每一个与视频的相应块相关联。 去块过程解锁视频，以减少接近视频块之间边界的伪影。 采样自适应偏移过程使用阈值标准基于与视频的相应块相关联的偏移类型特性来对像素进行分类。
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公开(公告)号：US20130114682A1
公开(公告)日：2013-05-09
申请号：US13290356
申请日：2011-11-07
申请人： Jie ZHAO , Christopher A. SEGALL
发明人： Jie ZHAO , Christopher A. SEGALL
IPC分类号： H04N7/32
CPC分类号： H04N19/865 , H04N19/436 , H04N19/82
摘要： A decoder decodes video received in a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and a plurality of offset type characteristics. Each of the plurality of offset type characteristics is associated with a respective block of the video. A deblocking process deblocks the video to reduce artifacts proximate boundaries between the blocks of the video based upon deblocking information. A sample adaptive offset process classifies a pixel based upon the offset type characteristic associated with the respective block of the video and the deblocking information.
摘要翻译： 解码器解码在包含表示多个像素的视频块的量化系数和多个偏移类型特性的比特流中接收的视频。 多个偏移类型特征中的每一个与视频的相应块相关联。 去块过程基于去块信息解封锁视频以减少邻近视频块之间边界的伪影。 样本自适应偏移过程基于与视频的相应块和解块信息相关联的偏移类型特性来对像素进行分类。
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公开(公告)号：US20130114681A1
公开(公告)日：2013-05-09
申请号：US13290338
申请日：2011-11-07
申请人： Jie ZHAO , Christopher A. SEGALL
发明人： Jie ZHAO , Christopher A. SEGALL
IPC分类号： H04N7/26
CPC分类号： H04N19/865 , H04N19/82
摘要： A decoder decodes video received in a bitstream containing quantized coefficients representative of blocks of video representative of a plurality of pixels and a plurality of offset type characteristics. Each of the plurality of offset type characteristics is associated with a respective block of the video. A deblocking process deblocks the video to reduce artifacts proximate boundaries between the blocks of the video. A sample adaptive offset process classifies a pixel based upon the offset type characteristic associated with the respective block of the video, wherein the classification for a first offset type characteristic is based upon a first source of data and a second offset type characteristic is based upon a second source of data.
摘要翻译： 解码器解码在包含表示多个像素的视频块的量化系数和多个偏移类型特性的比特流中接收的视频。 多个偏移类型特征中的每一个与视频的相应块相关联。 去块过程解锁视频，以减少接近视频块之间边界的伪影。 样本自适应偏移过程基于与视频的相应块相关联的偏移类型特征来对像素进行分类，其中第一偏移类型特性的分类基于第一数据源，第二偏移类型特性基于 第二个数据来源。
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公开(公告)号：US20120050474A1
公开(公告)日：2012-03-01
申请号：US13285819
申请日：2011-10-31
IPC分类号： H04N13/00
CPC分类号： G06T5/50 , G06T5/007 , G06T2207/10021 , G06T2207/10144 , H04N13/139 , H04N19/132 , H04N19/186 , H04N19/187 , H04N19/30 , H04N19/527 , H04N19/537 , H04N19/587 , H04N19/597 , H04N19/80 , H04N19/85
摘要： A system for decoding a video sequence includes a first sequence of images corresponding to a first image acquisition device of a stereoscopic pair of image acquisition devices and a second sequence of images corresponding to another image acquisition device of the stereoscopic pair of image acquisition devices, wherein at least one of the images of at least one of the sequence of images and the second sequence of images has an exposure different than the exposure of other images. A high dynamic range image sequence is created, having a dynamic range greater than the dynamic range of the first sequence and the second sequence, based upon at least one of the first sequence of images and the second sequence of images together with at least one of the images of at least one of the first sequence of images and the second sequence of images having exposure different than the exposure of other images.
摘要翻译： 用于解码视频序列的系统包括对应于立体对图像获取装置的第一图像获取装置的第一序列图像和对应于立体对图像获取装置的另一图像获取装置的第二图像序列，其中 图像序列和第二图像序列中的至少一个的图像中的至少一个具有与其它图像的曝光不同的曝光。 基于第一图像序列和第二图像序列中的至少一个，创建具有大于第一序列和第二序列的动态范围的动态范围的高动态范围图像序列，以及至少一个 所述第一图像序列中的至少一个图像和所述第二图像序列的图像具有不同于其它图像的曝光的曝光。
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