公开(公告)号：US20090196515A1

公开(公告)日：2009-08-06

申请号：US12230245

申请日：2008-08-26

申请人： Dae-hee Kim ,  Woong-il Choi ,  Dae-sung Cho ,  Hyun-mun Kim

发明人： Dae-hee Kim ,  Woong-il Choi ,  Dae-sung Cho ,  Hyun-mun Kim

IPC分类号： G06K9/36

CPC分类号： H04N19/573 ,  H04N19/172 ,  H04N19/31 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61 ,  H04N19/70

摘要： A method of and apparatus to efficiently encode and/or decode an image are provided. The method of encoding an image includes: calculating a motion vector of a main reference image by estimating a motion of a current image with reference to the main reference image; deriving a motion vector of at least one auxiliary reference image from this motion vector; generating a prediction image of the current image by using a motion vector of the main reference image or the motion vector of the at least one auxiliary reference image; and encoding a residue image between the current image and the prediction image.

摘要翻译： 提供了一种有效地编码和/或解码图像的方法和装置。 编码图像的方法包括：通过参考主参考图像估计当前图像的运动来计算主参考图像的运动矢量; 从该运动矢量导出至少一个辅助参考图像的运动矢量; 通过使用主参考图像的运动矢量或至少一个辅助参考图像的运动矢量来生成当前图像的预测图像; 以及对当前图像和预测图像之间的残差图像进行编码。

公开(公告)号：US20090097573A1

公开(公告)日：2009-04-16

申请号：US12076126

申请日：2008-03-13

申请人： Woong-il Choi ,  Dae-sung Cho ,  Dae-hee Kim ,  Hyun-mun Kim

发明人： Woong-il Choi ,  Dae-sung Cho ,  Dae-hee Kim ,  Hyun-mun Kim

IPC分类号： H04N7/26

CPC分类号： H04N19/40 ,  H04N19/12 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61

摘要： Provided are a scalable video coding method and apparatus, and a scalable video decoding method and apparatus. The coding method generates a base layer bitstream of video by using one of a plurality of codecs, determines whether the used codec supports enhancement layer coding, decodes the base layer bitstream according to the result of the determination in order to extract coded information used for the generation of the base layer bitstream, and generates an enhancement layer bitstream of the original video based on the extracted information. Accordingly, it is possible to provide high-quality video and increase coding efficiency while using the various existing codecs.

摘要翻译： 提供了一种可分级视频编码方法和装置，以及可分级视频解码方法和装置。 编码方法通过使用多个编解码器中的一个生成视频的基本层比特流，确定所使用的编解码器是否支持增强层编码，根据确定结果对基本层比特流进行解码，以便提取用于 生成基本层比特流，并且基于所提取的信息生成原始视频的增强层比特流。 因此，可以在使用各种现有的编解码器的同时提供高质量的视频并提高编码效率。

公开(公告)号：US08588313B2

公开(公告)日：2013-11-19

申请号：US13417847

申请日：2012-03-12

申请人： Woong-il Choi ,  Dae-sung Cho ,  Dae-hee Kim ,  Hyun-mun Kim

发明人： Woong-il Choi ,  Dae-sung Cho ,  Dae-hee Kim ,  Hyun-mun Kim

IPC分类号： H04N7/26

CPC分类号： H04N19/40 ,  H04N19/12 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61

摘要： Provided are a scalable video coding method and apparatus, and a scalable video decoding method and apparatus. The coding method generates a base layer bitstream of video by using one of a plurality of codecs, determines whether the used codec supports enhancement layer coding, decodes the base layer bitstream according to the result of the determination in order to extract coded information used for the generation of the base layer bitstream, and generates an enhancement layer bitstream of the original video based on the extracted information. Accordingly, it is possible to provide high-quality video and increase coding efficiency while using the various existing codecs.

公开(公告)号：US20070154087A1

公开(公告)日：2007-07-05

申请号：US11647364

申请日：2006-12-29

申请人： Dae-sung Cho ,  Hyun-mun Kim ,  Dae-hee Kim ,  Woo-shik Kim ,  Dmitri Birinov ,  Woong-il Choi

发明人： Dae-sung Cho ,  Hyun-mun Kim ,  Dae-hee Kim ,  Woo-shik Kim ,  Dmitri Birinov ,  Woong-il Choi

IPC分类号： G06K9/00

CPC分类号： H04N19/186 ,  H04N19/105 ,  H04N19/503 ,  H04N19/593

摘要： An image encoding/decoding system, medium, and method. The image encoding system includes a residue production unit arranged to produce first residues corresponding to differences between color components of a current image and color components of a predicted image, a unit arranged to perform spatial transform and quantization with respect to the first residue of a first color component and perform de-quantization and inverse spatial transform with respect to the quantized first residue of the first color component so as to reconstruct the first residue of the first color component, a residue prediction unit arranged to predict second residues with respect to the first residues of the other color components by using the reconstructed first residue of the first color component, and an encoding unit arranged to encode the first residue of the first color component and the second residues of the other color components.

摘要翻译： 一种图像编码/解码系统，介质和方法。 图像编码系统包括：残留物生成单元，被配置为产生与当前图像的颜色分量和预测图像的颜色分量之间的差异相对应的第一残差;布置成执行空间变换和量化相对于第一个 对第一颜色分量的量化的第一残差执行去量化和逆空间变换，以便重建第一颜色分量的第一残差;残差预测单元，被布置成相对于第一颜色分量预测第二残差 通过使用第一颜色分量的重构的第一残差，其它颜色分量的残差，以及编码单元，被配置为编码第一颜色分量的第一残差和其它颜色分量的第二残差。

公开(公告)号：US08873621B2

公开(公告)日：2014-10-28

申请号：US12076125

申请日：2008-03-13

申请人： Dae-hee Kim ,  Dae-sung Cho ,  Woong-il Choi ,  Hyun-mun Kim

发明人： Dae-hee Kim ,  Dae-sung Cho ,  Woong-il Choi ,  Hyun-mun Kim

IPC分类号： H04N21/2389 ,  H04N19/70 ,  H04N21/2343 ,  H04N19/36 ,  H04N21/438 ,  H04N19/126 ,  H04N21/2383 ,  H04N19/186 ,  H04N21/647 ,  H04N19/30 ,  H04N19/187

CPC分类号： H04N21/234354 ,  H04N19/126 ,  H04N19/186 ,  H04N19/187 ,  H04N19/30 ,  H04N19/36 ,  H04N19/70 ,  H04N21/234327 ,  H04N21/2383 ,  H04N21/4382 ,  H04N21/64792

摘要： A method, medium, and apparatus for encoding and/or decoding video by generating a scalable bitstream formed of a base layer bitstream and an enhancement layer bitstream so as to have forward compatibility, wherein the enhancement layer bitstream comprises a bit-depth field of the enhancement layer, a frame or a picture type field of the enhancement layer in consideration of a frame or a picture type of the base layer, an additional quantization information field for obtaining a quantization parameter of the enhancement layer together with a quantization parameter of the base layer, an intra-macroblock field of the enhancement layer, and an inter-macroblock field of the enhancement layer.

摘要翻译： 一种用于通过生成由基本层比特流和增强层比特流形成的可分级比特流以便具有向前兼容性来编码和/或解码视频的方法，介质和装置，其中所述增强层比特流包括： 考虑到基本层的帧或图像类型的增强层，增强层的帧或图像类型字段，用于获得增强层的量化参数的附加量化信息字段以及基础的量化参数 层，增强层的宏块内区域，以及增强层的宏块间区域。

公开(公告)号：US08406291B2

公开(公告)日：2013-03-26

申请号：US12285690

申请日：2008-10-10

申请人： Dae-hee Kim ,  Dae-sung Cho ,  Woong-il Choi ,  Hyun-mun Kim

发明人： Dae-hee Kim ,  Dae-sung Cho ,  Woong-il Choi ,  Hyun-mun Kim

IPC分类号： H04N21/00

CPC分类号： H04N19/36 ,  H04N19/126 ,  H04N19/184 ,  H04N19/186 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/583 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

摘要： A method, medium, and apparatus for encoding and/or decoding video by generating a scalable bitstream formed with a base layer bitstream and an enhancement layer bitstream in order to provide forward compatibility, the scalable bitstream comprising a base layer bitstream including a base quantized level and a base quantization parameter corresponding to a base bit-depth, and an enhancement layer bitstream including a residue between an extended quantized level and a compensated quantized level that is predicted from the base quantized level, and additional quantization information for refining the difference between an extended bit-depth and the base bit-depth, wherein a process for improving image quality is applied to at least one of the base layer and the enhancement layer.

公开(公告)号：US08160158B2

公开(公告)日：2012-04-17

申请号：US12076126

申请日：2008-03-13

申请人： Woong-il Choi ,  Dae-sung Cho ,  Dae-hee Kim ,  Hyun-mun Kim

发明人： Woong-il Choi ,  Dae-sung Cho ,  Dae-hee Kim ,  Hyun-mun Kim

IPC分类号： H04N7/26

CPC分类号： H04N19/40 ,  H04N19/12 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61

摘要： Provided are a scalable video coding method and apparatus, and a scalable video decoding method and apparatus. The coding method generates a base layer bitstream of video by using one of a plurality of codecs, determines whether the used codec supports enhancement layer coding, decodes the base layer bitstream according to the result of the determination in order to extract coded information used for the generation of the base layer bitstream, and generates an enhancement layer bitstream of the original video based on the extracted information. Accordingly, it is possible to provide high-quality video and increase coding efficiency while using the various existing codecs.

摘要翻译： 提供了一种可分级视频编码方法和装置，以及可分级视频解码方法和装置。 编码方法通过使用多个编解码器之一来生成视频的基本层比特流，确定所使用的编解码器是否支持增强层编码，根据确定结果对基本层比特流进行解码，以便提取用于 生成基本层比特流，并且基于所提取的信息生成原始视频的增强层比特流。 因此，可以在使用各种现有的编解码器的同时提供高质量的视频并提高编码效率。

公开(公告)号：US20090148054A1

公开(公告)日：2009-06-11

申请号：US12155754

申请日：2008-06-09

申请人： Dae-hee Kim ,  Dae-sung Cho ,  Woong-il Choi ,  Hyun-mun Kim

发明人： Dae-hee Kim ,  Dae-sung Cho ,  Woong-il Choi ,  Hyun-mun Kim

IPC分类号： G06K9/36

CPC分类号： H04N19/36 ,  H04N19/126 ,  H04N19/187 ,  H04N19/33 ,  H04N19/61

摘要： A method, medium, and apparatus hierarchically encoding or decoding an image format. In this method, a basic image is generated by down-sampling an original image. A basic layer bitstream is generated by encoding the basic image. A restoration image of the basic image is generated and up-sampled. Enhancement layer bitstreams are generated by encoding a residue image corresponding to a difference between the original image and the up-sampled restoration image by using different quantization parameters.

摘要翻译： 分层编码或解码图像格式的方法，介质和装置。 在该方法中，通过对原始图像进行下采样来生成基本图像。 通过编码基本图像来生成基本层比特流。 生成基本图像的恢复图像并进行上采样。 通过使用不同的量化参数对与原始图像和上采样的恢复图像之间的差相对应的残差图像进行编码来生成增强层比特流。

公开(公告)号：US20090097549A1

公开(公告)日：2009-04-16

申请号：US12285690

申请日：2008-10-10

申请人： Dae-hee Kim ,  Dae-sung Cho ,  Woong-iI Choi ,  Hyun-mun Kim

发明人： Dae-hee Kim ,  Dae-sung Cho ,  Woong-iI Choi ,  Hyun-mun Kim

IPC分类号： H04N7/26

CPC分类号： H04N19/36 ,  H04N19/126 ,  H04N19/184 ,  H04N19/186 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/583 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82

摘要： A method, medium, and apparatus for encoding and/or decoding video by generating a scalable bitstream formed with a base layer bitstream and an enhancement layer bitstream in order to provide forward compatibility, the scalable bitstream comprising a base layer bitstream including a base quantized level and a base quantization parameter corresponding to a base bit-depth, and an enhancement layer bitstream including a residue between an extended quantized level and a compensated quantized level that is predicted from the base quantized level, and additional quantization information for refining the difference between an extended bit-depth and the base bit-depth, wherein a process for improving image quality is applied to at least one of the base layer and the enhancement layer.

摘要翻译： 一种用于通过生成形成有基本层比特流和增强层比特流的可分级比特流来编码和/或解码视频的方法，介质和装置，以便提供前向兼容性，所述可分级比特流包括基本层比特流，包括基本量化级别 以及对应于基本位深度的基本量化参数，以及包括从基本量化级预测的扩展量化电平和补偿量化电平之间的残差的增强层比特流，以及用于精简 扩展位深度和基本位深度，其中用于提高图像质量的处理被应用于基本层和增强层中的至少一个。

公开(公告)号：US09654779B2

公开(公告)日：2017-05-16

申请号：US13410601

申请日：2012-03-02

申请人： Woo-shik Kim ,  Hyun-mun Kim ,  Dae-sung Cho ,  Dmitri Birinov ,  Dae-hee Kim ,  Woong-il Choi

发明人： Woo-shik Kim ,  Hyun-mun Kim ,  Dae-sung Cho ,  Dmitri Birinov ,  Dae-hee Kim ,  Woong-il Choi

IPC分类号： H04L29/06 ,  H04N19/136 ,  G06T9/00 ,  H04N19/176 ,  H04N19/147 ,  H04N19/15 ,  H04N19/61 ,  H04N19/593 ,  H04N19/11 ,  H04N19/109 ,  H04N19/186 ,  H04N19/19 ,  H04N19/103 ,  H04N19/50

CPC分类号： H04N19/136 ,  G06T9/007 ,  H04N19/103 ,  H04N19/109 ,  H04N19/11 ,  H04N19/147 ,  H04N19/15 ,  H04N19/176 ,  H04N19/186 ,  H04N19/19 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61

摘要： A method, medium, and system encoding and/or decoding a moving picture. The moving picture encoding method may include selecting a prediction mode that is optimal for the macro blocks, which correspond to each other, of the color components of a current image based on the characteristics of a predetermined image, generating a predicted image for the current image according to the selected prediction mode, and encoding a moving picture using the predicted image. An optimal prediction mode can be adaptively applied to the macro blocks, which correspond to each other, of the color components, thereby increasing the moving picture's encoding and decoding efficiencies.