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    Video encoding apparatus, video decoding apparatus, and method
    3.
    发明授权
    Video encoding apparatus, video decoding apparatus, and method 失效
    视频编码装置，视频解码装置和方法

    公开(公告)号：US08718132B2

    公开(公告)日：2014-05-06

    申请号：US13463285

    申请日：2012-05-03

    申请人： Dae-sung Cho ,  Woong-il Choi

    发明人： Dae-sung Cho ,  Woong-il Choi

    IPC分类号： H04N11/02

    CPC分类号： H04N19/33 ,  H04N19/105 ,  H04N19/16 ,  H04N19/184 ,  H04N19/186 ,  H04N19/187

    摘要： Provided are a scalable video encoding apparatus, a scalable video decoding apparatus, and method. The scalable video encoding apparatus includes a first encoding unit to generate a base layer bitstream, which is to be used for generating a reconstructed image having a second resolution, by encoding an original image having a first resolution into an encoded image having the second resolution, and a second encoding unit to generate an enhancement layer bitstream by reconstructing the reconstructed image having the second resolution, which is received from the first encoding unit, to be a reconstructed image having the first resolution in response to an interpolation mode signal, and then to encode the original image having the first resolution by using the reconstructed image having the first resolution, where the enhancement layer bitstream contains additional information for generating a reconstructed image having the first resolution or a third resolution.

    摘要翻译： 提供了可分级视频编码装置，可分级视频解码装置和方法。 可分级视频编码装置包括：第一编码单元，用于通过将具有第一分辨率的原始图像编码为具有第二分辨率的编码图像来生成将用于生成具有第二分辨率的重建图像的基本层比特流， 以及第二编码单元，用于通过将从第一编码单元接收到的具有第二分辨率的重构图像重建为具有响应于插值模式信号的第一分辨率的重建图像来生成增强层比特流，然后到 通过使用具有第一分辨率的重建图像对具有第一分辨率的原始图像进行编码，其中增强层比特流包含用于生成具有第一分辨率或第三分辨率的重建图像的附加信息。

    Method and apparatus to encode/decode image efficiently
    5.
    发明授权
    Method and apparatus to encode/decode image efficiently 有权
    有效地对图像进行编码/解码的方法和装置

    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。

    Video encoding apparatus, video decoding apparatus, and method
    6.
    发明授权
    Video encoding apparatus, video decoding apparatus, and method 失效
    视频编码装置，视频解码装置和方法

    公开(公告)号：US08194733B2

    公开(公告)日：2012-06-05

    申请号：US12289213

    申请日：2008-10-22

    申请人： Dae-sung Cho ,  Woong-il Choi

    发明人： Dae-sung Cho ,  Woong-il Choi

    IPC分类号： H04N11/02

    CPC分类号： H04N19/33 ,  H04N19/105 ,  H04N19/16 ,  H04N19/184 ,  H04N19/186 ,  H04N19/187

    摘要： Provided are a scalable video encoding apparatus, a scalable video decoding apparatus, and method. The scalable video encoding apparatus includes a first encoding unit to generate a base layer bitstream, which is to be used for generating a reconstructed image having a second resolution, by encoding an original image having a first resolution into an encoded image having the second resolution, and a second encoding unit to generate an enhancement layer bitstream by reconstructing the reconstructed image having the second resolution, which is received from the first encoding unit, to be a reconstructed image having the first resolution in response to an interpolation mode signal, and then to encode the original image having the first resolution by using the reconstructed image having the first resolution, where the enhancement layer bitstream contains additional information for generating a reconstructed image having the first resolution or a third resolution.

    摘要翻译： 提供了可分级视频编码装置，可分级视频解码装置和方法。 可分级视频编码装置包括：第一编码单元，用于通过将具有第一分辨率的原始图像编码为具有第二分辨率的编码图像来生成将用于生成具有第二分辨率的重建图像的基本层比特流， 以及第二编码单元，用于通过将从第一编码单元接收到的具有第二分辨率的重构图像重建为具有响应于插值模式信号的第一分辨率的重建图像来生成增强层比特流，然后到 通过使用具有第一分辨率的重建图像对具有第一分辨率的原始图像进行编码，其中增强层比特流包含用于生成具有第一分辨率或第三分辨率的重建图像的附加信息。

    Image encoding and decoding apparatus and method
    8.
    发明申请
    Image encoding and decoding apparatus and method 有权

    公开(公告)号：US20110235710A1

    公开(公告)日：2011-09-29

    申请号：US13067450

    申请日：2011-06-01

    申请人： Hyun Mun Kim ,  Dae-sung Cho ,  Woo-shik Kim

    发明人： Hyun Mun Kim ,  Dae-sung Cho ,  Woo-shik Kim

    IPC分类号： H04N7/32 ,  G06K9/40

    CPC分类号： H04N19/44 ,  H04N19/105 ,  H04N19/107 ,  H04N19/136 ,  H04N19/142 ,  H04N19/162 ,  H04N19/176 ,  H04N19/182 ,  H04N19/184 ,  H04N19/46 ,  H04N19/50 ,  H04N19/61

    摘要： An image encoding and decoding apparatus and method, the image encoding and decoding apparatus includes: an encoding unit adjusting at least one weight value adaptively to the number of bits expressing each pixel of a current image, predicting a pixel value of a block of interest by performing an operation on a pixel value of at least one block having a pixel value similar to the pixel value of the block of interest among blocks included in a previous image and the at least one adjusted weight value, and encoding the pixel value of the block of interest using the predicted pixel value of the block of interest; and a decoding unit adjusting the at least one weight value adaptively to the number of bits, restoring the predicted pixel value of the block of interest by performing an operation on the pixel value of the at least one block having the pixel value similar to the pixel value of the block of interest among blocks included in the restored previous image and the at least one adjusted weight value, and decoding the pixel value of the block of interest using the restored pixel value, wherein the previous image refers to an image displayed prior to a current image, and the block of interest is a target block of interest among blocks belonging to the current image.

    Image encoding apparatus and image decoding apparatus
    9.
    发明申请
    Image encoding apparatus and image decoding apparatus 审中-公开
    图像编码装置和图像解码装置

    公开(公告)号：US20090226103A1

    公开(公告)日：2009-09-10

    申请号：US12292118

    申请日：2008-11-12

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

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

    IPC分类号： G06K9/36

    CPC分类号： H04N19/129 ,  H04N19/61 ,  H04N19/63

    摘要： Provided are an image encoding apparatus and an image decoding apparatus. The image encoding apparatus includes a prediction encoding unit to perform prediction encoding on an input image so as to generate a residual image, a transform unit to transform the residual image in transform block units so as to generate transform coefficients, a quantization unit to quantize the transform coefficients of a transform block, and an entropy encoding unit to determine a scanning order based on priority at each location of the transform block, to scan the quantized transform coefficients of the transform block in the determined scanning order so as to generate transform coefficients of a one-dimensional array, and to perform entropy encoding on the transform coefficients of the one-dimensional array.

    摘要翻译： 提供了图像编码装置和图像解码装置。 该图像编码装置包括对输入图像进行预测编码以产生残差图像的预测编码单元，以变换块为单位转换残差图像以生成变换系数的变换单元，量化单元 变换块的变换系数和熵编码单元，以基于变换块的每个位置处的优先级来确定扫描顺序，以所确定的扫描顺序扫描变换块的量化变换系数，以便生成变换块的变换系数 一维阵列，并对一维阵列的变换系数执行熵编码。

    Video encoding apparatus, video decoding apparatus, and method
    10.
    发明申请
    Video encoding apparatus, video decoding apparatus, and method 失效
    视频编码装置，视频解码装置和方法

    公开(公告)号：US20090225869A1

    公开(公告)日：2009-09-10

    申请号：US12289213

    申请日：2008-10-22

    申请人： Dae-sung Cho ,  Woong-il Choi

    发明人： Dae-sung Cho ,  Woong-il Choi

    IPC分类号： H04N7/26

    CPC分类号： H04N19/33 ,  H04N19/105 ,  H04N19/16 ,  H04N19/184 ,  H04N19/186 ,  H04N19/187

    摘要： Provided are a scalable video encoding apparatus, a scalable video decoding apparatus, and method. The scalable video encoding apparatus includes a first encoding unit to generate a base layer bitstream, which is to be used for generating a reconstructed image having a second resolution, by encoding an original image having a first resolution into an encoded image having the second resolution, and a second encoding unit to generate an enhancement layer bitstream by reconstructing the reconstructed image having the second resolution, which is received from the first encoding unit, to be a reconstructed image having the first resolution in response to an interpolation mode signal, and then to encode the original image having the first resolution by using the reconstructed image having the first resolution, where the enhancement layer bitstream contains additional information for generating a reconstructed image having the first resolution or a third resolution.

    摘要翻译： 提供了可分级视频编码装置，可分级视频解码装置和方法。 可分级视频编码装置包括：第一编码单元，用于通过将具有第一分辨率的原始图像编码为具有第二分辨率的编码图像来生成将用于生成具有第二分辨率的重建图像的基本层比特流， 以及第二编码单元，用于通过将从第一编码单元接收到的具有第二分辨率的重构图像重建为具有响应于插值模式信号的第一分辨率的重建图像来生成增强层比特流，然后到 通过使用具有第一分辨率的重建图像对具有第一分辨率的原始图像进行编码，其中增强层比特流包含用于生成具有第一分辨率或第三分辨率的重建图像的附加信息。