公开(公告)号：US20090129466A1

公开(公告)日：2009-05-21

申请号：US12155543

申请日：2008-06-05

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

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

IPC分类号： H04N7/26

CPC分类号： H04N19/423 ,  H04N19/103 ,  H04N19/126 ,  H04N19/14 ,  H04N19/176 ,  H04N19/184 ,  H04N19/61 ,  H04N19/70

摘要： A method, medium, and apparatus encoding and/or decoding a moving image. The method of decoding a moving image includes increasing a resolution of a compression image corresponding to a reference image of a current image from among compression images stored in a memory in order to reconstruct the reference image, generating a reconstruction image of the current image by decoding a bitstream by using the reconstructed reference image, and reducing a resolution of the generated reconstruction image in order to compress the reconstruction image and storing the compressed reconstruction image in the memory.

摘要翻译： 编码和/或解码运动图像的方法，介质和装置。 解码运动图像的方法包括：从存储在存储器中的压缩图像中增加与当前图像的参考图像相对应的压缩图像的分辨率，以便重建参考图像，通过解码产生当前图像的重建图像 通过使用重建的参考图像的比特流，并且降低生成的重建图像的分辨率，以便压缩重建图像并将压缩的重建图像存储在存储器中。

公开(公告)号：US20080056352A1

公开(公告)日：2008-03-06

申请号：US11896443

申请日：2007-08-31

申请人： Dae-Hee Kim ,  Hyun-mun Kim ,  Dae-sung Cho ,  Woong-il Choi ,  Jae-woo Jung

发明人： Dae-Hee Kim ,  Hyun-mun Kim ,  Dae-sung Cho ,  Woong-il Choi ,  Jae-woo Jung

IPC分类号： H04B1/66

CPC分类号： H04N19/36 ,  H04N19/124 ,  H04N19/184 ,  H04N19/186 ,  H04N19/187 ,  H04N19/59 ,  H04N19/61

摘要： A video encoding apparatus and method and a video decoding apparatus and method are provided. The video encoding apparatus includes a base layer encoding unit generating a base layer bitstream including a quantization level of video data and a base quantization parameter corresponding to a base bit-depth, an enhancement layer encoding unit generating an enhancement layer bitstream including a refined quantization parameter for refining the difference between an extended bit-depth and the base bit-depth, and a bitstream combining unit combining the base layer bitstream and the enhancement layer bitstream to generate the scalable bitstream. The video decoding apparatus includes a base layer decoding unit decoding a base layer bitstream including a quantization level of video data and a base quantization parameter corresponding to a base bit-depth in a received bitstream to obtain a base restoration image, an enhancement layer decoding unit decoding an enhancement layer bitstream including a refined quantization parameter for refining the difference between an extended bit-depth and the base bit-depth in the received bitstream, and a bit-depth restoration unit obtaining an extended restoration image corresponding to an extended bit-depth by using the decoded quantization level, the decoded base quantization parameter, and the decoded refined quantization parameter.

摘要翻译： 提供了视频编码装置和方法以及视频解码装置和方法。 该视频编码装置包括：基本层编码单元，生成包括视频数据的量化级别和与基本位深度相对应的基本量化参数的基本层位流;增强层编码单元，生成包含精细量化参数的增强层比特流 用于改善扩展位深度和基本位深度之间的差异;以及比特流组合单元，组合基本层比特流和增强层比特流以生成可缩放比特流。 视频解码装置包括：基本层解码单元，对包含视频数据的量化级别的基本层比特流和对应于接收比特流中的基本比特深度的基本量化参数进行解码，以获得基本恢复图像;增强层解码单元 解码包括精细化量化参数的增强层比特流，用于细化所接收的比特流中的扩展比特深度和基本比特深度之间的差异;以及比特深度恢复单元，获得对应于扩展比特深度的扩展恢复图像 通过使用解码的量化级，解码的基本量化参数和解码的精化量化参数。

公开(公告)号：US08374248B2

公开(公告)日：2013-02-12

申请号：US12285785

申请日：2008-10-14

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

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

IPC分类号： H04N7/12

CPC分类号： H04N19/59 ,  H04N19/102 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/523 ,  H04N19/61

摘要： Provided are a resolution varying video encoding/decoding apparatus and method are provided. The video encoding apparatus comprises a resolution varying encoder to perform an encoding operation using motion estimation and compensation on a current image having a first resolution and a current image having a second resolution according to a resolution control signal to generate a bitstream, and a controller to generate the resolution control signal for varying a resolution to the first resolution or the second resolution at a predetermined interval. The video decoding apparatus comprises an analyzer to analyze a bitstream composed of encoded data having a first resolution or a second resolution and to generate a resolution control signal corresponding to a resolution flag included in the bitstream, and a resolution varying decoder to perform a decoding operation using motion compensation on encoded data having the first resolution and encoded data having the second resolution according to the resolution control signal to generate a reconstructed image.

公开(公告)号：US08331433B2

公开(公告)日：2012-12-11

申请号：US11896443

申请日：2007-08-31

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

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

IPC分类号： H04B1/66

CPC分类号： H04N19/36 ,  H04N19/124 ,  H04N19/184 ,  H04N19/186 ,  H04N19/187 ,  H04N19/59 ,  H04N19/61

摘要： A video encoding apparatus and method and a video decoding apparatus and method are provided. The video encoding apparatus includes a base layer encoding unit generating a base layer bitstream including a quantization level of video data and a base quantization parameter corresponding to a base bit-depth, an enhancement layer encoding unit generating an enhancement layer bitstream including a refined quantization parameter for refining the difference between an extended bit-depth and the base bit-depth, and a bitstream combining unit combining the base layer bitstream and the enhancement layer bitstream to generate the scalable bitstream. The video decoding apparatus includes a base layer decoding unit decoding a base layer bitstream including a quantization level of video data and a base quantization parameter corresponding to a base bit-depth in a received bitstream to obtain a base restoration image, an enhancement layer decoding unit decoding an enhancement layer bitstream including a refined quantization parameter for refining the difference between an extended bit-depth and the base bit-depth in the received bitstream, and a bit-depth restoration unit obtaining an extended restoration image corresponding to an extended bit-depth by using the decoded quantization level, the decoded base quantization parameter, and the decoded refined quantization parameter.

摘要翻译： 提供了视频编码装置和方法以及视频解码装置和方法。 该视频编码装置包括：基本层编码单元，生成包括视频数据的量化级别和与基本位深度相对应的基本量化参数的基本层位流;增强层编码单元，生成包含精细量化参数的增强层比特流 用于改善扩展位深度和基本位深度之间的差异;以及比特流组合单元，组合基本层比特流和增强层比特流以生成可缩放比特流。 视频解码装置包括：基本层解码单元，对包含视频数据的量化级别的基本层比特流和对应于接收比特流中的基本比特深度的基本量化参数进行解码，以获得基本恢复图像;增强层解码单元 解码包括精细化量化参数的增强层比特流，用于细化所接收的比特流中的扩展比特深度和基本比特深度之间的差异;以及比特深度恢复单元，获得对应于扩展比特深度的扩展恢复图像 通过使用解码的量化级，解码的基本量化参数和解码的精化量化参数。

公开(公告)号：US20090185621A1

公开(公告)日：2009-07-23

申请号：US12285785

申请日：2008-10-14

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

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

IPC分类号： H04N7/26

CPC分类号： H04N19/59 ,  H04N19/102 ,  H04N19/176 ,  H04N19/46 ,  H04N19/513 ,  H04N19/523 ,  H04N19/61

摘要： Provided are a resolution varying video encoding/decoding apparatus and method are provided. The video encoding apparatus comprises a resolution varying encoder to perform an encoding operation using motion estimation and compensation on a current image having a first resolution and a current image having a second resolution according to a resolution control signal to generate a bitstream, and a controller to generate the resolution control signal for varying a resolution to the first resolution or the second resolution at a predetermined interval. The video decoding apparatus comprises an analyzer to analyze a bitstream composed of encoded data having a first resolution or a second resolution and to generate a resolution control signal corresponding to a resolution flag included in the bitstream, and a resolution varying decoder to perform a decoding operation using motion compensation on encoded data having the first resolution and encoded data having the second resolution according to the resolution control signal to generate a reconstructed image.

摘要翻译： 提供了一种分辨率变化的视频编码/解码装置和方法。 视频编码装置包括分辨率变化编码器，以根据分辨率控制信号执行使用运动估计和对具有第一分辨率的当前图像和具有第二分辨率的当前图像的补偿的编码操作，以产生比特流，以及控制器 生成用于以预定间隔将分辨率改变为第一分辨率或第二分辨率的分辨率控制信号。 视频解码装置包括分析器，用于分析由具有第一分辨率或第二分辨率的编码数据组成的比特流，并产生与包含在比特流中的分辨率标志相对应的分辨率控制信号;以及分辨率改变解码器，以执行解码操作 对具有第一分辨率的编码数据和根据分辨率控制信号具有第二分辨率的编码数据进行运动补偿，以产生重构图像。

公开(公告)号：US10034000B2

公开(公告)日：2018-07-24

申请号：US11717208

申请日：2007-03-13

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

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.

公开(公告)号：US08306342B2

公开(公告)日：2012-11-06

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：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：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.