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公开(公告)号：US20090225833A1
公开(公告)日：2009-09-10
申请号：US12396582
申请日：2009-03-03
Applicant: Woo-jin Han , Duck-yeon Kim
Inventor： Woo-jin Han , Duck-yeon Kim
IPC: H04N7/32
CPC classification number: H04N19/36 , H04N19/105 , H04N19/122 , H04N19/124 , H04N19/126 , H04N19/176 , H04N19/30 , H04N19/467 , H04N19/61
Abstract: Provided are a method and apparatus for encoding an image capable of improving compression efficiency of the image by compensating for a loss due to quantization of a residual block in the frequency domain, and a method and apparatus for decoding the image. The method of encoding an image includes: generating a prediction macro block for a current macro block; generating a first residual block which is a difference between the prediction macro block and the current macro block; generating a compensation residual block by compensating for a quantization loss of the first residual block in the frequency domain; compensating for the prediction macro block by adding the compensation residual block and the prediction macro block.
Abstract translation: 提供了一种通过补偿由于频域中的残差块的量化造成的损失而能够提高图像的压缩效率的图像的方法和装置，以及用于对图像进行解码的方法和装置。 编码图像的方法包括：产生用于当前宏块的预测宏块; 产生作为预测宏块与当前宏块之间的差的第一残差块; 通过补偿频域中的第一残差块的量化损耗来产生补偿残差块; 通过添加补偿残差块和预测宏块来补偿预测宏块。
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公开(公告)号：US08306115B2
公开(公告)日：2012-11-06
申请号：US12396582
申请日：2009-03-03
Applicant: Woo-jin Han , Duck-yeon Kim
Inventor： Woo-jin Han , Duck-yeon Kim
CPC classification number: H04N19/36 , H04N19/105 , H04N19/122 , H04N19/124 , H04N19/126 , H04N19/176 , H04N19/30 , H04N19/467 , H04N19/61
Abstract: Provided are a method and apparatus for encoding an image capable of improving compression efficiency of the image by compensating for a loss due to quantization of a residual block in the frequency domain, and a method and apparatus for decoding the image. The method of encoding an image includes: generating a prediction macro block for a current macro block; generating a first residual block which is a difference between the prediction macro block and the current macro block; generating a compensation residual block by compensating for a quantization loss of the first residual block in the frequency domain; compensating for the prediction macro block by adding the compensation residual block and the prediction macro block.
Abstract translation: 提供了一种通过补偿由于频域中的残差块的量化造成的损失而能够提高图像的压缩效率的图像的方法和装置，以及用于对图像进行解码的方法和装置。 编码图像的方法包括：产生用于当前宏块的预测宏块; 产生作为预测宏块与当前宏块之间的差的第一残差块; 通过补偿频域中的第一残差块的量化损耗来产生补偿残差块; 通过添加补偿残差块和预测宏块来补偿预测宏块。
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3.发明申请METHOD AND APPARATUS FOR ENCODING VIDEO AND METHOD AND APPARATUS FOR DECODING VIDEO 有权用于编码视频的方法和装置以及用于解码视频的方法和装置公开(公告)号：US20080181309A1
公开(公告)日：2008-07-31
申请号：US11961173
申请日：2007-12-20
Applicant: Kyo-Hyuk Lee , Sang-rae Lee , Duck-yeon Kim , Tammy Lee
Inventor： Kyo-Hyuk Lee , Sang-rae Lee , Duck-yeon Kim , Tammy Lee
IPC: H04N7/32
CPC classification number: H04N19/196 , H04N19/159 , H04N19/176 , H04N19/197 , H04N19/52
Abstract: A method of and apparatus for encoding and decoding an image are provided. According to the method and apparatus, a virtual motion vector is assigned to a block which is encoded in intra prediction mode, and when a motion vector of a block which is encoded in inter prediction mode after the intra block is decoded, the virtual motion vector assigned to the intra block is used.
Abstract translation: 提供了一种用于对图像进行编码和解码的方法和装置。 根据该方法和装置，将虚拟运动矢量分配给在帧内预测模式中编码的块，并且当在帧内块之后以帧间预测模式编码的块的运动矢量被解码时，虚拟运动矢量 分配给内部块使用。
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4.发明授权Method and apparatus for encoding video and method and apparatus for decoding video 有权用于编码视频的方法和装置，用于解码视频的方法和装置公开(公告)号：US08254456B2
公开(公告)日：2012-08-28
申请号：US11961173
申请日：2007-12-20
Applicant: Kyo-Hyuk Lee , Sang-rae Lee , Duck-yeon Kim , Tammy Lee
Inventor： Kyo-Hyuk Lee , Sang-rae Lee , Duck-yeon Kim , Tammy Lee
CPC classification number: H04N19/196 , H04N19/159 , H04N19/176 , H04N19/197 , H04N19/52
Abstract: A method of and apparatus for encoding and decoding an image are provided. According to the method and apparatus, a virtual motion vector is assigned to a block which is encoded in intra prediction mode, and when a motion vector of a block which is encoded in inter prediction mode after the intra block is decoded, the virtual motion vector assigned to the intra block is used.
Abstract translation: 提供了一种用于对图像进行编码和解码的方法和装置。 根据该方法和装置，将虚拟运动矢量分配给在帧内预测模式中编码的块，并且当在帧内块之后以帧间预测模式编码的块的运动矢量被解码时，虚拟运动矢量 分配给内部块使用。
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