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。

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。

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

IPC: H04B1/66 ,  H04N7/12

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。

公开(公告)号：US20090207913A1

公开(公告)日：2009-08-20

申请号：US12389776

申请日：2009-02-20

Applicant: Duck-yeon KIM ,  Bae-keun LEE ,  Kyo-hyuk LEE ,  Woo-jin HAN ,  Sang-rae LEE ,  Jae-chool LEE

Inventor： Duck-yeon KIM ,  Bae-keun LEE ,  Kyo-hyuk LEE ,  Woo-jin HAN ,  Sang-rae LEE ,  Jae-chool LEE

IPC: H04N7/32

CPC classification number: H04N19/105 ,  H04N19/136 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

Abstract: Provided are methods and apparatuses for encoding an image and methods and apparatuses for decoding an image. The methods and apparatuses generate a compensated prediction block by compensating a prediction block of a current block by using a predetermined compensation value and encode a residual value that is a difference between the compensated prediction block and an input current block.

Abstract translation: 提供了用于编码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。 方法和装置通过使用预定补偿值补偿当前块的预测块并对作为补偿预测块和输入当前块之间的差的残差值进行编码来生成补偿预测块。

公开(公告)号：US20090161762A1

公开(公告)日：2009-06-25

申请号：US12093611

申请日：2006-11-15

Applicant: Dong-San Jun ,  Jung Won Kang ,  Yong-Ju Cho ,  Jae Gon Kim ,  Jin Woo Hong ,  Yong Man Ro ,  Tae Meon Bae ,  Duck-Yeon Kim ,  Hae-Chul Choi

Inventor： Dong-San Jun ,  Jung Won Kang ,  Yong-Ju Cho ,  Jae Gon Kim ,  Jin Woo Hong ,  Yong Man Ro ,  Tae Meon Bae ,  Duck-Yeon Kim ,  Hae-Chul Choi

IPC: H04N7/26

CPC classification number: H04N21/234327 ,  H04N19/107 ,  H04N19/134 ,  H04N19/147 ,  H04N19/157 ,  H04N19/177 ,  H04N19/187 ,  H04N19/31 ,  H04N19/33 ,  H04N19/34 ,  H04N19/36 ,  H04N19/58 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70 ,  H04N19/89 ,  H04N21/2662 ,  H04N21/440227 ,  H04N21/440263

Abstract: Methods of coding a bitstream in which the frames are encoded for enabling a spatial resolution is changed in real time, extracting the bitstream by adding a signaling message indicating that the spatial resolution is changed, and decoding the bitstream in which the spatial resolution is changed in real time after actively detects whether the spatial resolution is changed without additional information, and a codec using the methods are provided. Therefore, if the network has the restricted environment that the resolution is changed in real time while a video encoding and decoding or if there is a need to output the video whose the spatial resolution is partly changed in the decoder, the present invention provides methods to actively cope with the spatial resolution change of the video so as to efficiently watch the video.

Abstract translation: 编码其中帧被编码以实现空间分辨率的比特流的方法被实时改变，通过添加指示空间分辨率改变的信令消息来提取比特流，并且解码其中空间分辨率改变的比特流 实时地检测空间分辨率是否改变而没有附加信息，并且提供使用这些方法的编解码器。 因此，如果网络具有在视频编码和解码时分辨率实时改变的限制环境，或者如果需要在解码器中输出空间分辨率部分改变的视频，则本发明提供了一种方法， 积极应对视频的空间分辨率变化，以便有效地观看视频。

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

IPC: H04N7/50 ,  H04N7/26

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。

公开(公告)号：US20080107180A1

公开(公告)日：2008-05-08

申请号：US11934824

申请日：2007-11-05

Applicant: Kyo-hyuk LEE ,  Duck-yeon KIM ,  Tammy LEE

Inventor： Kyo-hyuk LEE ,  Duck-yeon KIM ,  Tammy LEE

IPC: H04N7/32

CPC classification number: H04N19/593 ,  H04N19/46 ,  H04N19/51 ,  H04N19/52

Abstract: Provided are a method and apparatus for video predictive encoding and decoding, in which a prediction value of a current block is generated by using a motion vector, which is generated by motion estimation with respect to a neighboring area located adjacent to the current block, as a motion vector for the current block. The motion vector to be used for motion compensation with respect to the current block can be determined by motion estimation using a previously processed neighboring area without separate transmission of motion vector information regarding the current block, thereby reducing the amount of bits generated during encoding.

Abstract translation: 提供一种用于视频预测编码和解码的方法和装置，其中通过使用通过关于相邻于当前块的相邻区域的运动估计生成的运动矢量来生成当前块的预测值，作为 当前块的运动矢量。 用于相对于当前块的运动补偿的运动矢量可以通过使用先前处理的相邻区域的运动估计来确定，而没有关于当前块的运动矢量信息的单独传输，从而减少编码期间产生的比特量。