公开(公告)号：US20100329336A1

公开(公告)日：2010-12-30

申请号：US12918688

申请日：2009-02-20

Applicant: Yu-Mi Sohn ,  Jung-Hye Min ,  Woo-Jin Han

Inventor： Yu-Mi Sohn ,  Jung-Hye Min ,  Woo-Jin Han

IPC: H04N7/50

CPC classification number: H04N19/17 ,  H04N19/105 ,  H04N19/109 ,  H04N19/61

Abstract: Provided are a method and apparatus for encoding and decoding based on inter prediction. In the method of encoding based on inter prediction, image inpainting is performed by searching for at least one reference picture by using pixels that are adjacent to the boundary between a current block and a previously encoded region of a current picture and are included in the previously encoded region, and the current block is encoded based on a predicted block obtained as the result of performing image inpainting. Accordingly, it is possible to precisely generate a predicted block, thereby improving the compression rate of image encoding.

Abstract translation: 提供了一种基于帧间预测的编码和解码的方法和装置。 在基于帧间预测的编码方法中，通过使用与当前图像的当前块和先前编码区域之间的边界相邻的像素搜索至少一个参考图像来执行图像修像，并且包括在先前 编码区域，并且基于作为执行图像修复的结果获得的预测块来编码当前块。 因此，可以精确地生成预测块，从而提高图像编码的压缩率。

公开(公告)号：US07840083B2

公开(公告)日：2010-11-23

申请号：US11599484

申请日：2006-11-15

Applicant: Woo-jin Han ,  Bae-keun Lee ,  Tammy Lee ,  Kyo-hyuk Lee

Inventor： Woo-jin Han ,  Bae-keun Lee ,  Tammy Lee ,  Kyo-hyuk Lee

IPC: G06K9/36 ,  G06K9/46 ,  G06K9/00

CPC classification number: H04N19/187 ,  H04N19/176 ,  H04N19/196 ,  H04N19/30 ,  H04N19/463 ,  H04N19/593 ,  H04N19/61 ,  H04N19/91

Abstract: A method of encoding flags, a method of decoding flags and an apparatus thereof, in which flag encoding and decoding can be efficiently performed by using spatial correlation between various flags included a plurality of blocks are provided. The method includes collecting flag values respectively allocated to groups of the plurality of blocks according to spatial correlation of blocks to create a flag bit-string, dividing the flag bit-string into a plurality of divided bit-strings using a group size, setting a pattern bit indicating whether all bits included in the divided bit-strings are 0 or not, and performing entropy coding on the divided bit-strings according to the set pattern bit.

Abstract translation: 提供一种编码标志的方法，一种解码标志的方法及其装置，其中可以通过使用包括多个块的各种标志之间的空间相关性来有效地执行标志编码和解码。 该方法包括根据块的空间相关性分别分配分配给多个块的组的标志值，以创建标志位串，使用组大小将标志位串划分成多个划分的位串，将 模式位，指示分割的位串中包括的所有比特是否为0，以及根据所设置的模式比特对分割的比特串进行熵编码。

公开(公告)号：US20090285300A1

公开(公告)日：2009-11-19

申请号：US12395731

申请日：2009-03-02

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

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

IPC: H04N7/32 ,  H04N7/26

CPC classification number: H04N19/00587 ,  H04N19/105 ,  H04N19/124 ,  H04N19/154 ,  H04N19/172 ,  H04N19/176 ,  H04N19/177 ,  H04N19/43 ,  H04N19/46 ,  H04N19/58 ,  H04N19/61

Abstract: A method and apparatus for encoding and decoding an image by performing motion prediction and compensation on pictures in a group of pictures by selectively using a high-quality key picture that is previously encoded and restored, and a second picture that is previously encoded and restored. The method of encoding an image improves the prediction efficiency of an image by storing a key picture, which is encoded and restored to a high quality by reducing a loss caused by a quantization error using a small quantization coefficient, in a first storage unit and storing a previously encoded and restored second picture in a second storage unit, and then performing motion prediction and compensation by selectively using the key picture stored in the first storage unit and the second picture stored in the second storage unit while encoding a next picture in a group of pictures.

Abstract translation: 通过选择性地使用先前被编码和恢复的高质量关键图像，以及先前编码和恢复的第二图像，对图像组中的图像执行运动预测和补偿来对图像进行编码和解码的方法和装置。 编码图像的方法通过在第一存储单元中存储通过减少由量化误差引起的量化误差造成的损失而被编码并恢复为高质量的关键图像来提高图像的预测效率，并存储 在第二存储单元中先前编码并恢复的第二图像，然后通过选择性地使用存储在第一存储单元中的密钥图像和存储在第二存储单元中的第二图像来对组中的下一图像进行编码来执行运动预测和补偿 的图片。

公开(公告)号：US20090225842A1

公开(公告)日：2009-09-10

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: H04N7/26

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：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：US20080310744A1

公开(公告)日：2008-12-18

申请号：US12129782

申请日：2008-05-30

Applicant: Jung-hye MIM ,  Woo-jin Han ,  Yu-mi Sohn ,  Jeong-hoon Park

Inventor： Jung-hye MIM ,  Woo-jin Han ,  Yu-mi Sohn ,  Jeong-hoon Park

IPC: G06K9/36

CPC classification number: H04N19/182 ,  H04N19/11 ,  H04N19/14 ,  H04N19/176 ,  H04N19/593 ,  H04N19/61

Abstract: A method and apparatus for intraprediction encoding/decoding is provided. The method includes performing image inpainting based on pixels included in a previously encoded region of a current picture among pixels that are adjacent to a boundary between a current block and the previously encoded region of the current picture in order to predict the current block, and performing prediction encoding on the current block using the prediction result. Thus, a new intraprediction mode in which the current block can be accurately predicted can be provided.

Abstract translation: 提供了用于非预测编码/解码的方法和装置。 该方法包括基于与当前图像块和当前图像的先前编码区域之间的边界相邻的像素之中的当前图像的先前编码区域中包括的像素执行图像修像，以便预测当前块，并执行 使用预测结果对当前块进行预测编码。 因此，可以提供其中可以准确地预测当前块的新的预预测模式。

公开(公告)号：US20080192825A1

公开(公告)日：2008-08-14

申请号：US11962147

申请日：2007-12-21

Applicant: Tammy Lee ,  Woo-Jin Han

Inventor： Tammy Lee ,  Woo-Jin Han

IPC: H04N7/12 ,  H04B1/66

CPC classification number: H04N19/82 ,  H04N19/132 ,  H04N19/14 ,  H04N19/17 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/48 ,  H04N19/50 ,  H04N19/587 ,  H04N19/59 ,  H04N19/61

Abstract: A video encoding method and apparatus and a video decoding method and apparatus are provided. The video encoding method encodes residual values included in a residual block of a current block after sub-sampling or down-sampling the residual values, thereby encoding and decoding the current block using a small number of residual values and thus improving the compression rate of video encoding.

Abstract translation: 提供了视频编码方法和装置以及视频解码方法和装置。 视频编码方法对子进行子采样后的当前块的残差块中残留值进行编码，然后使用少量残差对当前块进行编码和解码，从而提高视频的压缩率 编码。

公开(公告)号：US20080159401A1

公开(公告)日：2008-07-03

申请号：US11964844

申请日：2007-12-27

Applicant: Tammy LEE ,  Woo-jin HAN

Inventor： Tammy LEE ,  Woo-jin HAN

IPC: H04N7/26

CPC classification number: H04N19/521 ,  H04N19/105 ,  H04N19/137 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61

Abstract: Provided are a method and apparatus for estimating a motion vector using a plurality of motion vector predictors, an encoder, a decoder, and a decoding method. The method includes calculating spatial similarities between the current block and the plurality of neighboring partitions around the current block, selecting at least one of the neighboring partitions based on the calculated spatial similarities, and estimating a motion vector of the selected partition as the motion vector of the current block.

Abstract translation: 提供了一种使用多个运动矢量预测器，编码器，解码器和解码方法来估计运动矢量的方法和装置。 该方法包括计算当前块和当前块周围的多个相邻分区之间的空间相似度，基于所计算的空间相似度来选择相邻分区中的至少一个，并且将所选择的分区的运动矢量估计为 当前块。

公开(公告)号：US20080107178A1

公开(公告)日：2008-05-08

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: H04N7/32

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：US20080107175A1

公开(公告)日：2008-05-08

申请号：US11936454

申请日：2007-11-07

Applicant: Woo-jin HAN ,  Bae-keun LEE ,  Tammy LEE

Inventor： Woo-jin HAN ,  Bae-keun LEE ,  Tammy LEE

IPC: H04N7/26

CPC classification number: H04N19/537 ,  H04N19/557 ,  H04N19/56 ,  H04N19/593

Abstract: Provided are a method and apparatus for encoding and decoding based on intra prediction. The method of encoding based on intra prediction includes predicting a current block by searching for a pre-encoded area in a current picture using pre-encoded pixels adjacent to the current block, and intra prediction encoding the current block so that information indicating that the current block is intra predicted via the predicting of the current block is included. Accordingly, the compression rate of intra prediction encoding is increased even when the current block is not appropriately predicted by using a prediction value obtained from pixels adjacent to the current block.

Abstract translation: 提供了一种基于帧内预测的编码和解码的方法和装置。 基于帧内预测的编码方法包括通过使用与当前块相邻的预编码像素搜索当前图像中的预编码区域来预测当前块，以及对当前块进行帧内预测编码，使得指示当前块的信息 通过包括当前块的预测来进行帧内预测。 因此，即使通过使用从与当前块相邻的像素获得的预测值来适当地预测当前块，帧内预测编码的压缩率也增加。