公开(公告)号：US08929448B2

公开(公告)日：2015-01-06

申请号：US11644296

申请日：2006-12-22

申请人： Jeongnam Youn

发明人： Jeongnam Youn

IPC分类号： H04N7/32 ,  H04N19/40 ,  H04N19/103 ,  H04N19/137 ,  H04N19/176

CPC分类号： H04N19/137 ,  H04N7/52 ,  H04N19/103 ,  H04N19/139 ,  H04N19/176 ,  H04N19/40

摘要： In one embodiment, a macroblock is determined in an incoming bitstream. In one example, the macroblock may be a 16×16 macroblock for a first coding standard, such as MPEG-2. The macroblock is then divided into a plurality of segmented blocks. For example, an arbitrary sized segment of blocks may be used to divide the macroblock into segmented blocks. In one example, the macroblock is divided into four 8×8 segmented blocks. A plurality of statistical measures are then determined for the plurality of segmented blocks. For example, for each segmented block, a sum of absolute differences (SAD) is determined. Then, one or more sizes for the sub-blocks are determined based on the comparison. For example, a variable sub-block size for an AVC bitstream is determined.

摘要翻译： 在一个实施例中，在输入比特流中确定宏块。 在一个示例中，宏块可以是用于诸如MPEG-2的第一编码标准的16×16宏块。 然后将宏块分成多个分段块。 例如，可以使用任意大小的块块来将宏块划分成分段块。 在一个示例中，宏块被分成四个8×8分段块。 然后确定多个分段块的多个统计量度。 例如，对于每个分段块，确定绝对差（SAD）之和。 然后，基于比较来确定用于子块的一个或多个尺寸。 例如，确定AVC比特流的可变子块大小。

公开(公告)号：US08218653B2

公开(公告)日：2012-07-10

申请号：US12080128

申请日：2008-03-31

申请人： Jeongnam Youn

发明人： Jeongnam Youn

IPC分类号： H04N7/12

CPC分类号： H04N19/182 ,  H04N19/105 ,  H04N19/124 ,  H04N19/154 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

摘要： Pixel data is compressed using a combination of variable and fixed quantization for luminance data. The luminance is compared to the result of variable quantization and to the result of the fixed quantization to compute a variable noise and a fixed noise. The result of the variable quantization is selected if the variable noise is less than the fixed noise, otherwise the fixed quantization result is selected if the fixed noise is less than the variable noise. The selected result is transferred to a frame memory. In another aspect of the invention, an intra mode coding decision is forced if the noise corresponding to the selected result exceeds a threshold.

摘要翻译： 使用用于亮度数据的可变和固定量化的组合来压缩像素数据。 将亮度与可变量化的结果和固定量化的结果进行比较，以计算可变噪声和固定噪声。 如果可变噪声小于固定噪声，则选择可变量化的结果，否则如果固定噪声小于可变噪声，则选择固定的量化结果。 所选结果被传送到帧存储器。 在本发明的另一方面，如果与所选结果相对应的噪声超过阈值，则强制帧内模式编码决定。

公开(公告)号：US08194736B2

公开(公告)日：2012-06-05

申请号：US12103427

申请日：2008-04-15

申请人： Jeongnam Youn

发明人： Jeongnam Youn

IPC分类号： H04J3/24 ,  H04L12/42 ,  H04N7/12

CPC分类号： H04N19/85 ,  H04N19/12 ,  H04N19/132 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/428 ,  H04N19/433 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

摘要： A method and apparatus to compress video data to smaller size and embed extra information into the compressed data using the integrated lossy and lossless compressions is described. The method can be used to compress reference frames of a video codec (coder/decoder) combines codec where the small noise is critical and to reduce bus bandwidth. Data transfer between an encoder and an external frame memory connected via an external bus in a video codec is reduced by compressing data from the encoder prior to inputting into the frame memory over the external bus, and decompressing the compressed data from the frame memory after retrieving over the external bus. Reference frames are compressed to variable size without causing any considerable artifact to reduce bus bandwidth between the encoder core and external memory. In the method, lossy and lossless compression is integrated to maximize the compression efficiency.

摘要翻译： 描述了使用集成的有损和无损压缩将视频数据压缩到较小尺寸并将额外信息嵌入到压缩数据中的方法和装置。 该方法可用于压缩视频编解码器（编码器/解码器）组合编码解码器的参考帧，其中小噪声是关键的，并减少总线带宽。 在通过外部总线输入到帧存储器之前通过压缩来自编码器的数据来减少在视频编解码器中通过外部总线连接的编码器与外部帧存储器之间的数据传输，并且在检索之后对来自帧存储器的压缩数据进行解压缩 通过外部总线。 参考帧被压缩到可变大小，而不会导致任何相当大的伪像来减少编码器核心和外部存储器之间的总线带宽。 在该方法中，集成有损和无损压缩以最大化压缩效率。

公开(公告)号：US20110090956A1

公开(公告)日：2011-04-21

申请号：US12580218

申请日：2009-10-15

申请人： Jeongnam Youn

发明人： Jeongnam Youn

IPC分类号： H04N7/32 ,  H03M7/00

CPC分类号： H04N19/105 ,  H03M7/4006 ,  H04N19/132 ,  H04N19/14 ,  H04N19/16 ,  H04N19/182 ,  H04N19/593

摘要： A compression method using adaptive field data selection is able to compress video or other data while retaining quality. By determining if pixels in a field are able to be predicted, the method is able to retain the information that is not able to be predicted and predict the other information. The method enables significant compression of the data which allows larger data such as high definition videos to be compressed and effectively used.

摘要翻译： 使用自适应场数据选择的压缩方法能够压缩视频或其他数据同时保持质量。 通过确定场中的像素是否能够被预测，该方法能够保留不能预测的信息并且预测其他信息。 该方法能够显着压缩数据，从而允许压缩和有效使用诸如高清视频之类的较大数据。

公开(公告)号：US07751631B2

公开(公告)日：2010-07-06

申请号：US11644813

申请日：2006-12-22

申请人： Jeongnam Youn ,  Cheung Auyeung

发明人： Jeongnam Youn ,  Cheung Auyeung

IPC分类号： G06K9/36

CPC分类号： H04N19/137 ,  H04N19/132 ,  H04N19/176 ,  H04N19/61

摘要： In one embodiment, a method for bypassing transform and quantization steps in a video compression is provided. The method determines one or more threshold values that are computed for a bypass of the transform and quantization steps. A sum of absolute transformed differences (SATD) value from a motion estimation of a signal being compressed using H.26x is received. The SATD value is compared to at least one of the one or more threshold values. It is then determined if the transform and quantization can be bypassed based on the comparison. For example, if the SATD value is less than the at least one of the one or more threshold values, then it may be determined that the coefficients of the transform are expected to be quantized to zero. Accordingly, the transform and quantization steps may be bypassed.

摘要翻译： 在一个实施例中，提供了用于绕过视频压缩中的变换和量化步骤的方法。 该方法确定为变换和量化步骤的旁路而计算的一个或多个阈值。 接收到使用H.26x压缩的信号的运动估计的绝对变换差（SATD）值的和。 将SATD值与一个或多个阈值中的至少一个进行比较。 然后根据比较确定是否可以绕过变换和量化。 例如，如果SATD值小于一个或多个阈值中的至少一个，则可以确定变换的系数预期被量化为零。 因此，可以绕过变换和量化步骤。

公开(公告)号：US07724820B2

公开(公告)日：2010-05-25

申请号：US11167050

申请日：2005-06-23

申请人： Jeongnam Youn ,  Takao Yamazaki

发明人： Jeongnam Youn ,  Takao Yamazaki

IPC分类号： H04B1/66 ,  H04N7/12

CPC分类号： H04N19/436 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/20 ,  H04N19/423 ,  H04N19/44

摘要： An apparatus and method is described for performing texture-decoding within a video decoder processing a series of macroblocks within a video bit-stream. The inventive texture decoding is particularly well suited for implementation within decoders incorporating multiple processors. The method separates data independent operations from data dependent (sequential) operations wherein multiprocessing may be efficiently utilized for processing data independent macroblocks. The method preferably makes an assumption as to prediction direction within the set of data dependent operations. A prediction determination is then made and the assumption corrected if necessary with a transposition within the data independent operations operating on the macroblocks. The method reduces the computational overhead and provides for efficiently segmenting operations within a multiprocessing decoder.

摘要翻译： 描述了在视频解码器内执行纹理解码的装置和方法，该视频解码器处理视频比特流内的一系列宏块。 本发明的纹理解码特别适用于并入多个处理器的解码器内的实现。 该方法将数据无关操作与数据相关（顺序）操作分开，其中可以有效地利用多处理来处理与数据无关的宏块。 该方法优选地对数据相关操作的集合内的预测方向进行假设。 然后进行预测确定，并且如果需要，则在基于宏块的数据独立操作中进行转置来校正假设。 该方法减少了计算开销并且提供了在多处理解码器内的有效分段操作。

公开(公告)号：US20100104027A1

公开(公告)日：2010-04-29

申请号：US12259649

申请日：2008-10-28

申请人： Jeongnam Youn ,  Yushin Cho ,  Daisuke Hiranaka

发明人： Jeongnam Youn ,  Yushin Cho ,  Daisuke Hiranaka

IPC分类号： H04N7/26

CPC分类号： H04N19/00066 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/30 ,  H04N19/61 ,  H04N19/85

摘要： A method and apparatus for preprocessing a video signal prior to its being encoded. During preprocessing, features are extracted from the video signal into feature planes which are each adaptively filtered in response to estimations of feature activity. After feature extraction the signal which remains is referred to as a “remaining signal”, which is then noise filtered to remove a substantial portion of the noise. The feature planes and remaining signal are recombined into a preprocessed output signal configured for receipt and processing by a video encoder. A video encoder receiving the preprocessed video signal can generate higher quality and/or lower bit rate encoded video than one receiving the original source video. Preprocessing according to the invention is particularly well suited for use with encoders adapted to remove temporal and/or spatial redundancy, such as those implemented according to the MPEG2/4, or AVC/H.264 standards.

摘要翻译： 一种用于在编码视频信号之前对视频信号进行预处理的方法和装置。 在预处理期间，将特征从视频信号提取到特征平面中，每个特征平面根据特征活动的估计被自适应过滤。 在特征提取之后，剩下的信号被称为“剩余信号”，然后对其进行噪声滤波以去除大部分噪声。 特征平面和剩余信号被重新组合成被配置为由视频编码器接收和处理的预处理输出信号。 接收预处理视频信号的视频编码器可以产生比接收原始源视频的视频编码视频更高质量和/或较低比特率编码视频。 根据本发明的预处理特别适合于适用于去除时间和/或空间冗余的编码器，诸如根据MPEG2 / 4或AVC / H.264标准实现的冗余。

公开(公告)号：US07450642B2

公开(公告)日：2008-11-11

申请号：US10294786

申请日：2002-11-13

申请人： Jeongnam Youn

发明人： Jeongnam Youn

IPC分类号： H04N7/12

CPC分类号： H04N19/56 ,  H04N5/145

摘要： A method of rapidly generating motion vector predictions based on vertical and horizontal position categorization of macroblocks within a video object plane (VOP) for use within a video decoder or encoder. By way of example, the location of the subject macroblock is categorized vertically as either Upper_Edge or Not_Upper_Edge, and horizontally as either Left_Edge, Right_Edge, or Not_Edge. The position categories are utilized in conjunction with selected block number (Block1 through Block4) within the luminance macroblock within a decision-tree which generates three predictors MV1, MV2, and MV3. The prediction rules may be implemented within hardware, software, or combinations thereof, within both video encoders and decoders, such as according to the MPEG-4, H.263, or similar standards.

摘要翻译： 一种基于视频对象平面（VOP）内的宏块的垂直和水平位置分类来快速生成运动矢量预测以在视频解码器或编码器内使用的方法。 作为示例，主题宏块的位置被垂直分类为Upper_Edge或Not_Upper_Edge，并且水平地被分类为Left_Edge，Right_Edge或Not_Edge。 位置类别与决策树内的亮度宏块内的所选块号（块1至块4）一起使用，该决策树生成三个预测变量MV 1，MV 2和MV 3。预测规则可以在硬件内实现， 软件或其组合，诸如根据MPEG-4，H.263或类似标准的两个视频编码器和解码器。

公开(公告)号：US20050238097A1

公开(公告)日：2005-10-27

申请号：US11167050

申请日：2005-06-23

申请人： Jeongnam Youn ,  Takao Yamazaki

发明人： Jeongnam Youn ,  Takao Yamazaki

IPC分类号： H03M20060101 ,  H04B1/66 ,  H04N7/12 ,  H04N7/26

CPC分类号： H04N19/436 ,  H04N19/105 ,  H04N19/11 ,  H04N19/176 ,  H04N19/20 ,  H04N19/423 ,  H04N19/44

摘要： An apparatus and method is described for performing texture-decoding within a video decoder processing a series of macroblocks within a video bit-stream. The inventive texture decoding is particularly well suited for implementation within decoders incorporating multiple processors. The method separates data independent operations from data dependent (sequential) operations wherein multiprocessing may be efficiently utilized for processing data independent macroblocks. The method preferably makes an assumption as to prediction direction within the set of data dependent operations. A prediction determination is then made and the assumption corrected if necessary with a transposition within the data independent operations operating on the macroblocks. The method reduces the computational overhead and provides for efficiently segmenting operations within a multiprocessing decoder.

摘要翻译： 描述了在视频解码器内执行纹理解码的装置和方法，该视频解码器处理视频比特流内的一系列宏块。 本发明的纹理解码特别适用于并入多个处理器的解码器内的实现。 该方法将数据无关操作与数据相关（顺序）操作分开，其中可以有效地利用多处理来处理与数据无关的宏块。 该方法优选地对数据相关操作的集合内的预测方向进行假设。 然后进行预测确定，并且如果需要，则在基于宏块的数据独立操作中进行转置来校正假设。 该方法减少了计算开销并且提供了在多处理解码器内的有效分段操作。

公开(公告)号：US08792564B2

公开(公告)日：2014-07-29

申请号：US12259649

申请日：2008-10-28

申请人： Jeongnam Youn ,  Yushin Cho ,  Daisuke Hiranaka

发明人： Jeongnam Youn ,  Yushin Cho ,  Daisuke Hiranaka

IPC分类号： H04N7/26

CPC分类号： H04N19/00066 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/30 ,  H04N19/61 ,  H04N19/85

摘要： A method and apparatus for preprocessing a video signal prior to its being encoded. During preprocessing, features are extracted from the video signal into feature planes which are each adaptively filtered in response to estimations of feature activity. After feature extraction the signal which remains is referred to as a “remaining signal”, which is then noise filtered to remove a substantial portion of the noise. The feature planes and remaining signal are recombined into a preprocessed output signal configured for receipt and processing by a video encoder. A video encoder receiving the preprocessed video signal can generate higher quality and/or lower bit rate encoded video than one receiving the original source video. Preprocessing according to the invention is particularly well suited for use with encoders adapted to remove temporal and/or spatial redundancy, such as those implemented according to the MPEG2/4, or AVC/H.264 standards.

摘要翻译： 一种用于在编码视频信号之前对视频信号进行预处理的方法和装置。 在预处理期间，将特征从视频信号提取到特征平面中，每个特征平面根据特征活动的估计被自适应过滤。 在特征提取之后，剩下的信号被称为“剩余信号”，然后对其进行噪声滤波以去除大部分噪声。 特征平面和剩余信号被重新组合成被配置为由视频编码器接收和处理的预处理输出信号。 接收预处理视频信号的视频编码器可以产生比接收原始源视频的视频编码视频更高质量和/或较低比特率编码视频。 根据本发明的预处理特别适用于适用于去除时间和/或空间冗余的编码器，例如根据MPEG2 / 4或AVC / H.264标准实现的冗余。