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：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：US09485511B2

公开(公告)日：2016-11-01

申请号：US13641389

申请日：2011-04-13

Applicant: Jung-hye Min ,  Woo-jin Han

Inventor： Jung-hye Min ,  Woo-jin Han

IPC: H04N7/26 ,  H04N19/119 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61 ,  H04N19/50 ,  H04N19/147 ,  H04N19/96 ,  H04N19/513 ,  H04N19/593 ,  H04N19/44 ,  H04N19/52

CPC classification number: H04N19/50 ,  H04N19/117 ,  H04N19/119 ,  H04N19/139 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/197 ,  H04N19/30 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/59 ,  H04N19/593 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

Abstract: Provided are a method and apparatus for encoding a video and a method and apparatus for decoding a video. The encoding method includes: splitting a picture of the video into one or more maximum coding units that are coding units having a maximum size; encoding the picture based on coding units according to depths which are obtained by hierarchically splitting each of the one or more maximum coding units according to depths in each of the one or more maximum coding units, determining coding units according to coded depths with respect to each of the coding units according to depths, and thus determining coding units having a tree structure; and outputting data that is encoded based on the coding units having the tree structure, information about the coded depths and an encoding mode, and coding unit structure information indicating a size and a variable depth of a coding unit.

Abstract translation: 提供了一种用于对视频进行编码的方法和装置以及用于对视频进行解码的方法和装置。 编码方法包括：将视频图像分割为具有最大尺寸的编码单元的一个或多个最大编码单元; 基于根据通过根据一个或多个最大编码单位中的每一个中的深度分层划分一个或多个最大编码单元中的每一个而获得的深度编码图像的编码单元，根据相对于每个最大编码单元的编码深度确定编码单元 根据深度编码单元，从而确定具有树结构的编码单元; 并且输出基于具有树结构的编码单元，关于编码深度的信息和编码模式进行编码的数据，以及指示编码单元的大小和可变深度的编码单元结构信息。

公开(公告)号：US09351017B2

公开(公告)日：2016-05-24

申请号：US13574110

申请日：2011-01-19

Applicant: Tammy Lee ,  Woo-jin Han

Inventor： Tammy Lee ,  Woo-jin Han

IPC: H04N7/32 ,  H04N19/96 ,  H04N19/56 ,  H04N19/70 ,  H04N19/51

CPC classification number: H04N19/513 ,  H04N19/124 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/51 ,  H04N19/56 ,  H04N19/577 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

Abstract: An encoding method and apparatus and a decoding method and apparatus for determining a motion vector of a current block based on a motion vector of at least one previously-encoded or previously-decoded block are provided. The decoding method includes: decoding information regarding a prediction direction from among a first direction, a second direction, and bi-directions, and information regarding pixel values of the current block; determining the prediction direction in which the current block is to be predicted, based on the decoded information regarding the prediction direction, and determining a motion vector for predicting the current block in the determined prediction direction; and restoring the current block, based on the determined motion vector and the decoded information regarding the pixel values, wherein the first direction is a direction from a current picture to a previous picture, and the second direction is a direction from the current picture to a subsequent picture.

公开(公告)号：US08885727B2

公开(公告)日：2014-11-11

申请号：US13178862

申请日：2011-07-08

Applicant: Tammy Lee ,  Woo-jin Han ,  Il-koo Kim ,  Sun-il Lee

Inventor： Tammy Lee ,  Woo-jin Han ,  Il-koo Kim ,  Sun-il Lee

IPC: H04N7/32 ,  H04N7/50 ,  H04N19/463 ,  H04N19/196 ,  H04N19/176 ,  H04N19/96 ,  H04N19/159 ,  H04N19/70

CPC classification number: H04N19/137 ,  H04N19/103 ,  H04N19/105 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/196 ,  H04N19/30 ,  H04N19/33 ,  H04N19/463 ,  H04N19/52 ,  H04N19/56 ,  H04N19/70 ,  H04N19/96

Abstract: Provided are a method and apparatus for encoding a video by using block merging and a method and apparatus for decoding a video by using block merging. The method of encoding includes: determining an encoding mode indicating a current data unit for encoding of a picture and an encoding method including prediction encoding performed for the current data unit; determining an occurrence of merging with at least one neighboring data unit based on at least one of the encoding mode and a prediction mode; and determining prediction mode information, merging related information, and prediction related information, and determining encoding information of the data unit including the prediction mode information, the merging related information, and the prediction related information.

Abstract translation: 提供了一种通过使用块合并对视频进行编码的方法和装置，以及通过使用块合并对视频进行解码的方法和装置。 编码方法包括：确定指示用于编码图像的当前数据单元的编码模式和包括对当前数据单元执行的预测编码的编码方法; 基于所述编码模式和预测模式中的至少一个，确定与至少一个相邻数据单元的合并的发生; 以及确定预测模式信息，合并相关信息和预测相关信息，以及确定包括预测模式信息，合并相关信息和预测相关信息的数据单元的编码信息。

公开(公告)号：US08842927B2

公开(公告)日：2014-09-23

申请号：US13006652

申请日：2011-01-14

Applicant: Min-su Cheon ,  Woo-jin Han ,  Hae-kyung Jung ,  Il-koo Kim ,  Tammy Lee ,  Jianle Chen

Inventor： Min-su Cheon ,  Woo-jin Han ,  Hae-kyung Jung ,  Il-koo Kim ,  Tammy Lee ,  Jianle Chen

IPC: G06K9/36 ,  H04N19/176 ,  H04N19/122 ,  H04N19/96 ,  H04N19/119 ,  H04N19/61 ,  H04N19/147

CPC classification number: H04N19/122 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/30 ,  H04N19/50 ,  H04N19/503 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91 ,  H04N19/96

Abstract: A method of encoding an image by transforming a group of prediction units into a frequency domain. A prediction unit may be predicted by using prediction values of the prediction units in the group of prediction units, instead of pixels generated by encoding and then restoring the other prediction units in the group of prediction units. Thus, an encoding compression ratio may be increased as a result of grouping the prediction units.

Abstract translation: 一种通过将一组预测单元变换成频域来对图像进行编码的方法。 可以通过使用预测单元组中的预测单元的预测值来代替通过编码生成的像素，然后恢复预测单元组中的其他预测单元来预测预测单元。 因此，作为对预测单元进行分组的结果，可以增加编码压缩比。

公开(公告)号：US08731055B2

公开(公告)日：2014-05-20

申请号：US12395977

申请日：2009-03-02

Applicant: Sang-rae Lee ,  Woo-jin Han ,  Jung-hye Min

Inventor： Sang-rae Lee ,  Woo-jin Han ,  Jung-hye Min

IPC: H04N7/12 ,  H04N11/02 ,  H04N7/26

CPC classification number: H04N7/26037 ,  H04N19/105 ,  H04N19/109 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/527 ,  H04N19/573 ,  H04N19/61

Abstract: A method and apparatus for encoding and decoding an image using a plurality of reference pictures. In an exemplary embodiment, the method of encoding an image comprises: generating information about transforms between a first picture and a second picture; generating a reference picture by transforming the second picture based on the generated information about transforms; predicting a current block of a current picture based on at least one of the reference picture and the first picture; and encoding the current block based on the predicting. Therefore, prediction encoding based on more accurate prediction is possible, thereby increasing a compression ratio of image encoding.

Abstract translation: 一种使用多个参考图像对图像进行编码和解码的方法和装置。 在示例性实施例中，编码图像的方法包括：产生关于第一图像和第二图像之间的变换的信息; 通过基于生成的关于变换的信息来变换第二画面来生成参考画面; 基于所述参考图像和所述第一图像中的至少一个来预测当前图像的当前块; 并根据预测编码当前块。 因此，可以进行基于更精确的预测的预测编码，从而增加图像编码的压缩率。

公开(公告)号：US08649431B2

公开(公告)日：2014-02-11

申请号：US12391518

申请日：2009-02-24

Applicant: Min-su Cheon ,  Jung-hye Min ,  Hae-kyung Jung ,  Woo-jin Han

Inventor： Min-su Cheon ,  Jung-hye Min ,  Hae-kyung Jung ,  Woo-jin Han

IPC: H04B1/66

CPC classification number: H04N19/82 ,  H04N19/107 ,  H04N19/176 ,  H04N19/51 ,  H04N19/593 ,  H04N19/61

Abstract: A prediction block of a current block is created by performing intra prediction or inter prediction on the current block. The prediction block is filtered by using a predetermined filter. The current block is encoded based on the filtered prediction block. A compression rate of image encoding may be substantially improved by more accurately performing a prediction encoding.

Abstract translation: 通过对当前块执行帧内预测或帧间预测来创建当前块的预测块。 通过使用预定的滤波器来过滤预测块。 基于滤波的预测块对当前块进行编码。 通过更精确地执行预测编码，可以显着提高图像编码的压缩率。

公开(公告)号：US08630345B2

公开(公告)日：2014-01-14

申请号：US11936382

申请日：2007-11-07

Applicant: Woo-jin Han ,  Jeong-hoon Park

Inventor： Woo-jin Han ,  Jeong-hoon Park

IPC: H04N11/04

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61

Abstract: Provided is are method and apparatus for video interprediction encoding/decoding. The method of video interprediction encoding/decoding includes extracting intraprediction-encoded/decoded blocks included in previously encoded/decoded pictures and predicting a current block from the extracted blocks. Thus, video encoding/decoding can be performed using both an intra (I) picture and correlation with adjacent pictures, thereby increasing the speed of video encoding/decoding.

Abstract translation: 提供了用于视频插入编码/解码的方法和装置。 视频插值编码/解码的方法包括提取包含在先前编码/解码的图像中的预设预编码/解码块，并从提取的块预测当前块。 因此，可以使用帧内（I）图像和与相邻图像的相关性来执行视频编码/解码，从而增加视频编码/解码的速度。

公开(公告)号：US08542750B2

公开(公告)日：2013-09-24

申请号：US11322392

申请日：2006-01-03

Applicant: Sang-chang Cha ,  Ho-jin Ha ,  Kyo-hyuk Lee ,  Bae-keun Lee ,  Jae-young Lee ,  Woo-jin Han

Inventor： Sang-chang Cha ,  Ho-jin Ha ,  Kyo-hyuk Lee ,  Bae-keun Lee ,  Jae-young Lee ,  Woo-jin Han

IPC: H04B1/66 ,  H04N7/12 ,  H04N11/04 ,  H04N11/02

CPC classification number: H04N19/61

Abstract: A deblocking filter used in a video encoder/decoder based on a multilayer is disclosed. The deblocking filtering method includes choosing a present block and its neighboring block on which a deblocking filtering will be performed, judging whether the present block and the neighboring block have been coded by the intra BL mode, choosing a deblocking filter strength according to the result of the judgment, and performing the deblocking filtering with respect to a boundary between the present block and the neighboring block and according to the deblocking filter strength.

Abstract translation: 公开了一种用于基于多层的视频编码器/解码器中的去块滤波器。 解块滤波方法包括：选择当前块及其相邻块，在其上执行去块滤波，判断当前块和相邻块是否已经通过帧内BL模式进行编码，根据其结果选择解块滤波器强度 并且根据解块滤波器强度对当前块和相邻块之间的边界执行解块滤波。