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    Image encoding and/or decoding system, medium, and method
    2.
    发明申请
    Image encoding and/or decoding system, medium, and method 有权
    图像编码和/或解码系统，介质和方法

    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。

    Scalable video coding method and apparatus and scalable video decoding method and apparatus
    5.
    发明授权
    Scalable video coding method and apparatus and scalable video decoding method and apparatus 有权
    可扩展视频编码方法及装置及可扩展视频解码方法及装置

    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。

    Method, medium and apparatus encoding/decoding image hierarchically
    6.
    发明申请
    Method, medium and apparatus encoding/decoding image hierarchically 审中-公开
    方法，介质和装置分层编码/解码图像

    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。

    Video encoding/decoding apparatus and method
    9.
    发明授权
    Video encoding/decoding apparatus and method 有权

    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.

    Video encoding apparatus and method and video decoding apparatus and method
    10.
    发明授权
    Video encoding apparatus and method and video decoding apparatus and method 有权
    视频编码装置及方法及视频解码装置及方法

    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。