-
公开(公告)号：US07599438B2
公开(公告)日：2009-10-06
申请号：US10933958
申请日：2004-09-02
CPC分类号： H04N19/16 , H04N19/102 , H04N19/109 , H04N19/11 , H04N19/112 , H04N19/117 , H04N19/129 , H04N19/13 , H04N19/137 , H04N19/146 , H04N19/147 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/51 , H04N19/52 , H04N19/523 , H04N19/593 , H04N19/61 , H04N19/63 , H04N19/70 , H04N19/82 , H04N19/86 , H04N19/93
摘要： Techniques and tools for using motion vector block patterns in video encoding and decoding are described. In general, a motion vector block pattern signals the presence or absence of motion vector data for a macroblock with multiple motion vectors. For example, a video decoder decodes variable length codes that represent motion vector block patterns. Each motion vector block pattern has one bit per corresponding luminance motion vector of a macroblock with multiple luminance motion vectors, where the one bit indicates whether or not motion vector data for the corresponding luminance motion vector is signaled. A video encoder performs corresponding encoding.
摘要翻译： 描述了在视频编码和解码中使用运动矢量块模式的技术和工具。 一般来说，运动矢量块模式用具有多个运动矢量的宏块发送运动矢量数据的存在或不存在。 例如，视频解码器解码表示运动矢量块图案的可变长度码。 每个运动矢量块图案具有具有多个亮度运动矢量的宏块的每个对应的亮度运动矢量的一位，其中一位指示是否用信号通知相应的亮度运动矢量的运动矢量数据。 视频编码器执行相应的编码。
-
公开(公告)号：US07162093B2
公开(公告)日：2007-01-09
申请号：US10933960
申请日：2004-09-03
申请人： Shankar Regunathan , Pohsiang Hsu , Ce Wang , Chih-Lung Lin , Jie Liang , Sridhar Srinivasan
发明人： Shankar Regunathan , Pohsiang Hsu , Ce Wang , Chih-Lung Lin , Jie Liang , Sridhar Srinivasan
CPC分类号： H04N19/86 , H04N19/105 , H04N19/107 , H04N19/166 , H04N19/174 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/80 , H04N19/82
摘要： A video encoder/decoder utilizes a bistream syntax that provides an independently decodable, partial picture unit, which may be in the form of a unit containing one or more contiguous rows of macroblocks (called a slice). This slice layer provides a flexible combination of error-resilience and compression efficiency. The slice layer encodes an efficient addressing mechanism (e.g., a syntax element specifying a beginning macroblock row of the slice layer), as well as an efficient mechanism to optionally retransmit picture header information. The slice layer provides decoding and reconstruction independence by disabling all forms of prediction, overlap and loop-filtering across slice-boundaries. This permits a slice coded in intra-mode to be reconstructed error-free, irrespective of errors in other regions of the picture.
摘要翻译： 视频编码器/解码器利用提供可独立解码的部分图像单元的双向串行语法，其可以是包含一个或多个连续的宏块行（称为切片）的单元的形式。 该切片层提供了弹性和压缩效率的灵活组合。 切片层对有效的寻址机制（例如，指定切片层的开始宏块行的语法元素）进行编码，以及有选择地重传图像头信息的机制。 切片层通过禁用跨片段的所有形式的预测，重叠和循环滤波来提供解码和重建独立性。 这允许在帧内编码的片段无错重构，而与图像的其他区域中的错误无关。
-
公开(公告)号：US08687709B2
公开(公告)日：2014-04-01
申请号：US10934116
申请日：2004-09-04
CPC分类号： H04N19/93 , H04N19/102 , H04N19/109 , H04N19/11 , H04N19/112 , H04N19/117 , H04N19/129 , H04N19/13 , H04N19/137 , H04N19/146 , H04N19/147 , H04N19/159 , H04N19/16 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/51 , H04N19/52 , H04N19/523 , H04N19/593 , H04N19/61 , H04N19/63 , H04N19/70 , H04N19/82 , H04N19/86
摘要： An encoder/decoder obtains pixel data from one or more field lines associated with a first block in an interlaced frame coded picture comprising plural macroblocks each having an equal number of top and bottom field lines. The encoder/decoder obtains pixel data from one or more field lines associated with a second block and performs in-loop deblocking filtering across a boundary. The in-loop deblocking filtering comprises filter operations performed on pixel data from field lines of same polarity only. In another aspect, an encoder/decoder obtains transform size information for plural blocks of macroblock, obtains field/frame type information for the macroblock and selects one or more boundaries for in-loop deblocking based at least in part on the transform size information and the field/frame type information. In-loop deblocking can be performed on horizontal block boundaries prior to vertical block boundaries.
摘要翻译： 编码器/解码器从隔行扫描帧编码图像中的与第一块相关联的一个或多个场线获得像素数据，该帧包括多个具有相等数目的顶场和底场的行的宏块。 编码器/解码器从与第二块相关联的一个或多个场线获取像素数据，并且跨越边界执行循环去块滤波。 循环去块滤波包括对相同极性的场线的像素数据执行的滤波操作。 在另一方面，编码器/解码器获得多个宏块块的变换大小信息，获得宏块的场/帧类型信息，并至少部分基于变换大小信息选择一个或多个边界进行循环去块， 字段/帧类型信息。 可以在垂直块边界之前的水平块边界上执行环路解块。
-
公开(公告)号：US20050053158A1
公开(公告)日：2005-03-10
申请号：US10933960
申请日：2004-09-03
申请人： Shankar Regunathan , Pohsiang Hsu , Ce Wang , Chih-Lung Lin , Jie Liang , Sridhar Srinivasan
发明人： Shankar Regunathan , Pohsiang Hsu , Ce Wang , Chih-Lung Lin , Jie Liang , Sridhar Srinivasan
IPC分类号： H04N20060101 , H04N7/12 , H04N7/26 , H04N7/50
CPC分类号： H04N19/86 , H04N19/105 , H04N19/107 , H04N19/166 , H04N19/174 , H04N19/46 , H04N19/61 , H04N19/70 , H04N19/80 , H04N19/82
摘要： A video encoder/decoder utilizes a bistream syntax that provides an independently decodable, partial picture unit, which may be in the form of a unit containing one or more contiguous rows of macroblocks (called a slice). This slice layer provides a flexible combination of error-resilience and compression efficiency. The slice layer encodes an efficient addressing mechanism (e.g., a syntax element specifying a beginning macroblock row of the slice layer), as well as an efficient mechanism to optionally retransmit picture header information. The slice layer provides decoding and reconstruction independence by disabling all forms of prediction, overlap and loop-filtering across slice-boundaries. This permits a slice coded in intra-mode to be reconstructed error-free, irrespective of errors in other regions of the picture.
摘要翻译： 视频编码器/解码器利用提供独立可解码的部分图像单元的双向串行语法，其可以是包含一个或多个连续的宏块行（称为切片）的单元的形式。 该切片层提供了弹性和压缩效率的灵活组合。 切片层对有效的寻址机制（例如，指定切片层的开始宏块行的语法元素）进行编码，以及有选择地重传图像头信息的机制。 切片层通过禁用跨片段的所有形式的预测，重叠和循环滤波来提供解码和重建独立性。 这允许在帧内编码的片段无错重构，而与图像的其他区域中的错误无关。
-
公开(公告)号：US09071847B2
公开(公告)日：2015-06-30
申请号：US10960356
申请日：2004-10-06
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/59 , H04N19/176 , H04N19/70 , H04N19/46 , H04N19/107 , H04N19/136 , H04N19/152 , H04N19/156 , H04N19/164 , H04N19/177 , H04N19/174 , H04N19/179 , H04N19/80
CPC分类号： H04N19/59 , H04N19/107 , H04N19/136 , H04N19/152 , H04N19/156 , H04N19/164 , H04N19/174 , H04N19/176 , H04N19/177 , H04N19/179 , H04N19/46 , H04N19/51 , H04N19/70 , H04N19/80 , H04N19/86
摘要： A video codec provides for encoding and decoding pictures of a video sequence at various coded resolutions, such that pictures can be encoded at lower coded resolutions based on bit rate or other constraints while maintaining a consistent display resolution. The video codec employs a coding syntax where a maximum coded resolution is signaled at the sequence level of the syntax hierarchy, whereas a lower coded resolution is signaled at the entry point level for a segment of one or more intra-coded frames and frames predictively encoded based thereon. This allows the use of a separate out-of-loop resampler after the decoder to up-sample the pictures to the display resolution.
摘要翻译： 视频编解码器提供以各种编码分辨率编码和解码视频序列的图像，使得可以在保持一致的显示分辨率的情况下，以比特率或其他约束为基础，以较低的编码分辨率编码图像。 视频编解码器采用编码语法，其中在语法层次结构的序列级别发信号通知最大编码分辨率，而对于一个或多个帧内编码帧的帧的一个或多个帧预测编码，在入口点级发送较低的编码分辨率 基于此。 这允许在解码器之后使用单独的环路外取样器来将图像上采样到显示分辨率。
-
公开(公告)号：US08625680B2
公开(公告)日：2014-01-07
申请号：US10680072
申请日：2003-10-06
申请人： Sridhar Srinivasan , Chih-Lung Lin , Pohsiang Hsu , Thomas W. Holcomb , Ming-Chieh Lee , Jordi Ribas-Corbera
发明人： Sridhar Srinivasan , Chih-Lung Lin , Pohsiang Hsu , Thomas W. Holcomb , Ming-Chieh Lee , Jordi Ribas-Corbera
CPC分类号： H04N19/00 , H04N19/117 , H04N19/124 , H04N19/13 , H04N19/146 , H04N19/152 , H04N19/159 , H04N19/16 , H04N19/162 , H04N19/172 , H04N19/176 , H04N19/179 , H04N19/184 , H04N19/192 , H04N19/46 , H04N19/51 , H04N19/523 , H04N19/527 , H04N19/61 , H04N19/70 , H04N19/82 , H04N19/91
摘要： Techniques and tools for bitstream-controlled filtering are described. For example, a video encoder puts control information into a bitstream for encoded video. A video decoder decodes the encoded video and, according to the control information, performs post-processing filtering on the decoded video with a de-ringing and/or de-blocking filter. Typically, a content author specifies the control information to the encoder. The control information itself is post-processing filter levels, filter selections, and/or some other type of information. In the bitstream, the control information is specified for a sequence, scene, frame, region within a frame, or at some other syntax level.
摘要翻译： 描述了位流控制滤波的技术和工具。 例如，视频编码器将控制信息放入编码视频的位流中。 视频解码器对编码的视频进行解码，并且根据控制信息，使用解除和/或去块滤波器对解码的视频进行后处理滤波。 通常，内容作者将控制信息指定给编码器。 控制信息本身是后处理过滤器级别，过滤器选择和/或某种其他类型的信息。 在比特流中，针对帧内的序列，场景，帧，区域或某些其他语法级别指定控制信息。
-
公开(公告)号：US07606311B2
公开(公告)日：2009-10-20
申请号：US10934929
申请日：2004-09-02
CPC分类号： H04N19/93 , H04N19/102 , H04N19/109 , H04N19/11 , H04N19/112 , H04N19/117 , H04N19/129 , H04N19/13 , H04N19/137 , H04N19/146 , H04N19/147 , H04N19/159 , H04N19/16 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/184 , H04N19/186 , H04N19/196 , H04N19/46 , H04N19/463 , H04N19/51 , H04N19/52 , H04N19/523 , H04N19/593 , H04N19/61 , H04N19/63 , H04N19/70 , H04N19/82 , H04N19/86
摘要： A decoder decodes skipped macroblocks of an interlaced frame. Skipped macroblocks use exactly one motion vector and have no motion vector differential information, and lack residual information. The skipped macroblock signal indicates one-motion-vector coding. The skipped macroblock signal can be a compressed bitplane (in a selected bitplane coding mode) sent at frame layer in a bitstream, or an individual bit sent at macroblock layer. In another aspect, an encoder jointly encodes motion compensation type and field/frame coding type for a macroblock in an interlaced P-frame. The encoder also can jointly encode other information for the macroblock (e.g., the presence of a differential motion vector). A decoder decodes a joint code (e.g., a variable length code in a variable length code table) to obtain both motion compensation type and field/frame coding type (and potentially other information) for the macroblock.
摘要翻译： 解码器解码交错帧的跳过的宏块。 跳过的宏块只使用一个运动矢量，没有运动矢量差分信息，缺少残留信息。 跳过的宏块信号表示一运动矢量编码。 跳过的宏块信号可以是在比特流中的帧层处发送的压缩位平面（以选定的位平面编码模式）或在宏块层发送的单个比特。 另一方面，编码器联合编码交错P帧中的宏块的运动补偿类型和场/帧编码类型。 编码器还可以联合编码宏块的其他信息（例如，差分运动矢量的存在）。 解码器对联合码（例如，可变长度码表中的可变长度码）解码以获得宏块的运动补偿类型和场/帧编码类型（以及潜在的其他信息）。
-
28.发明授权Signaling macroblock mode information for macroblocks of interlaced forward-predicted fields 有权用于隔行正向预测场的宏块的信令宏块模式信息公开(公告)号：US07606308B2
公开(公告)日：2009-10-20
申请号：US10933880
申请日：2004-09-02
CPC分类号： H04N19/16 , H04N19/137 , H04N19/196 , H04N19/46 , H04N19/51 , H04N19/61 , H04N19/70
摘要： Techniques and tools for code table selection and joint coding/decoding of macroblock mode information for macroblocks of interlaced forward-predicted frames are described. For example, a video decoder decodes a variable length code that jointly signals macroblock mode information for a motion-compensated macroblock. The jointly signaled information includes a macroblock type, whether a coded block pattern is present or absent, and whether motion vector data is present or absent for the motion-compensated macroblock. A video encoder performs corresponding encoding.
摘要翻译： 描述用于隔行扫描前向预测帧的宏块的宏块模式信息的码表选择和联合编码/解码的技术和工具。 例如，视频解码器对可变长度码进行解码，该可变长度码联合发送用于运动补偿宏块的宏块模式信息。 联合信号的信息包括宏块类型，是否存在编码块模式，以及运动矢量数据是否存在或不存在于运动补偿宏块。 视频编码器执行相应的编码。
-
公开(公告)号：US07580584B2
公开(公告)日：2009-08-25
申请号：US10893166
申请日：2004-07-17
CPC分类号： H04N19/17 , H04N19/124 , H04N19/126 , H04N19/136 , H04N19/137 , H04N19/176 , H04N19/18 , H04N19/46 , H04N19/61 , H04N19/70
摘要： With adaptive multiple quantization, a video or other digital media codec can adaptively select among multiple quantizers to apply to transform coefficients based on content or bit rate constraints, so as to improve quality through rate-distortion optimization. The switch in quantizers can be signaled at the sequence level or frame level of the bitstream syntax, or can be implicitly specified in the syntax.
摘要翻译： 利用自适应多量化，视频或其他数字媒体编解码器可以在多个量化器之间进行自适应选择，以应用于基于内容或比特率约束的变换系数，从而通过速率失真优化来提高质量。 量化器中的开关可以在比特流语法的序列级别或帧级别发出信号，或者可以在语法中隐式指定。
-
公开(公告)号：US07092576B2
公开(公告)日：2006-08-15
申请号：US10933959
申请日：2004-09-02
IPC分类号： G06K9/36
CPC分类号： H04N19/16 , H04N19/103 , H04N19/112 , H04N19/176 , H04N19/46 , H04N19/70
摘要： In one aspect, for a first interlaced video frame in a video sequence, a decoder decodes a bitplane signaled at frame layer for the first interlaced video frame. The bitplane represents field/frame transform types for plural macroblocks of the first interlaced video frame. For a second interlaced video frame in the video sequence, for each of at least one but not all of plural macroblocks of the second interlaced video frame, the decoder processes a per macroblock field/frame transform type bit signaled at macroblock layer. An encoder performs corresponding encoding.
摘要翻译： 在一个方面，对于视频序列中的第一隔行视频帧，解码器解码用于第一隔行视频帧的在帧层处发信号的位平面。 该位平面表示第一隔行视频帧的多个宏块的场/帧变换类型。 对于视频序列中的第二隔行视频帧，对于第二隔行视频帧的多个宏块中的至少一个但不是全部的宏块中的每一个，解码器处理在宏块层处发送信号的每宏块字段/帧变换类型位。 编码器执行相应的编码。
-
-
-
-
-
-
-
-
-
搜索结果
206 条记录 (耗时 0.035 秒)
