公开(公告)号：US08369410B2

公开(公告)日：2013-02-05

申请号：US13553358

申请日：2012-07-19

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

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

IPC: H04N7/12

CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/865 ,  H04N19/96

Abstract: Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding the motion vector includes: selecting, as a mode of encoding information about a motion vector predictor of the current block, a first mode in which information indicating the motion vector predictor from among at least one motion vector predictor is encoded or a second mode in which information indicating generation of the motion vector predictor based on blocks or pixels included in a previously encoded area adjacent to the current block is encoded; determining the motion vector predictor of the current block according to the selected mode and encoding the information about the motion vector predictor of the current block; and encoding a difference vector between the motion vector of the current block and the motion vector predictor of the current block.

Abstract translation: 提供了用于对运动矢量进行编码和解码的方法和装置。 对运动矢量进行编码的方法包括：作为对当前块的运动矢量预测器的信息进行编码的模式，选择对从至少一个运动矢量预测器中的运动矢量预测器进行编码的信息进行编码的第一模式， 第二模式，其中编码基于与当前块相邻的先前编码区域中包括的块或像素的运动矢量预测器的生成的信息; 根据所选择的模式确定当前块的运动矢量预测器，并对关于当前块的运动矢量预测器的信息进行编码; 并且对当前块的运动矢量与当前块的运动矢量预测器之间的差矢量进行编码。

公开(公告)号：US20080107181A1

公开(公告)日：2008-05-08

申请号：US11936128

申请日：2007-11-07

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

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

IPC: H04N7/26

CPC classification number: H04N19/537 ,  H04N19/132 ,  H04N19/147 ,  H04N19/176 ,  H04N19/52 ,  H04N19/61

Abstract: Provided is a method of and apparatus for video encoding and decoding based on motion estimation. The method includes generating a motion vector by searching a reference picture using pixels of a current block, generating a prediction motion vector that is a prediction value of the motion vector by searching the reference picture using previously encoded pixels located adjacent to the current block, and encoding the current block based on the motion vector and the prediction motion vector. By accurately predicting the motion vector of the current block, the number of bits required for encoding the motion vector can be reduced, thereby improving the compression rate of video data.

Abstract translation: 提供了一种基于运动估计的用于视频编码和解码的方法和装置。 该方法包括通过使用当前块的像素搜索参考图像来生成运动矢量，通过使用与当前块相邻的先前编码的像素搜索参考图像来生成作为运动矢量的预测值的预测运动矢量，以及 基于运动矢量和预测运动矢量对当前块进行编码。 通过精确地预测当前块的运动矢量，可以减少编码运动矢量所需的位数，从而提高视频数据的压缩率。

公开(公告)号：US08537897B2

公开(公告)日：2013-09-17

申请号：US12856197

申请日：2010-08-13

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

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

IPC: H04N7/12

CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/865 ,  H04N19/96

Abstract: Encoding and decoding a motion vector according to one of a plurality of encoding modes that is selected based on a coding unit depth.

Abstract translation: 根据基于编码单元深度选择的多个编码模式之一对运动矢量进行编码和解码。

公开(公告)号：US08311118B2

公开(公告)日：2012-11-13

申请号：US13403476

申请日：2012-02-23

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

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

IPC: H04N7/12

CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/865 ,  H04N19/96

Abstract: Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding the motion vector includes: selecting, as a mode of encoding information about a motion vector predictor of the current block, a first mode in which information indicating the motion vector predictor from among at least one motion vector predictor is encoded or a second mode in which information indicating generation of the motion vector predictor based on blocks or pixels included in a previously encoded area adjacent to the current block is encoded; determining the motion vector predictor of the current block according to the selected mode and encoding the information about the motion vector predictor of the current block; and encoding a difference vector between the motion vector of the current block and the motion vector predictor of the current block.

Abstract translation: 提供了用于对运动矢量进行编码和解码的方法和装置。 对运动矢量进行编码的方法包括：作为对当前块的运动矢量预测器的信息进行编码的模式，选择对从至少一个运动矢量预测器中的运动矢量预测器进行编码的信息进行编码的第一模式， 第二模式，其中编码基于与当前块相邻的先前编码区域中包括的块或像素的运动矢量预测器的生成的信息; 根据所选择的模式确定当前块的运动矢量预测器，并对关于当前块的运动矢量预测器的信息进行编码; 并且对当前块的运动矢量与当前块的运动矢量预测器之间的差矢量进行编码。

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：US20070297518A1

公开(公告)日：2007-12-27

申请号：US11723862

申请日：2007-03-22

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: H04B1/66

CPC classification number: H04N19/184 ,  H04N19/132 ,  H04N19/172 ,  H04N19/176 ,  H04N19/196 ,  H04N19/30 ,  H04N19/46 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: The present invention relates to a video compression technology, and more particularly, to an effective flag-coding method and apparatus thereof by using a spatial correlation among various flags used to code a video frame. In order to accomplish the object, there is provided an apparatus for encoding a flag used to code a video frame composed of a plurality of blocks, the apparatus including a flag-assembling unit which collects flag values allotted for each block and produces a flag bit string, based on spatial correlation of the blocks, a maximum-run-determining unit which determines a maximum run of the flag bit string, and a converting unit which converts the bits included in the flag bit string into a codeword having a size no more than the maximum run by using a predetermined codeword table.

Abstract translation: 视频压缩技术技术领域本发明涉及一种视频压缩技术，更具体地说，涉及一种通过使用用于对视频帧进行编码的各种标志之间的空间相关性的有效标志编码方法及其装置。 为了实现该目的，提供了一种用于编码用于编码由多个块组成的视频帧的标志的装置，该装置包括标志组合单元，该标志组合单元收集为每个块分配的标志值，并产生标志位 字符串，基于所述块的空间相关性，确定所述标志位串的最大行程的最大运行确定单元，以及将包括在所述标志位串中的位转换为尺寸不大的码字的转换单元 比通过使用预定码字表的最大运行。

公开(公告)号：US08873633B2

公开(公告)日：2014-10-28

申请号：US12031847

申请日：2008-02-15

Applicant: Kyo-Hyuk Lee ,  Woo-jin Han ,  Tammy Lee

Inventor： Kyo-Hyuk Lee ,  Woo-jin Han ,  Tammy Lee

IPC: H04N7/26 ,  H04N19/51 ,  H04N19/61 ,  H04N19/176 ,  H04N19/189 ,  H04N19/102 ,  H04N19/103

CPC classification number: H04N7/26872 ,  H04N19/109 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/61

Abstract: A method and apparatus for encoding a skip macroblock by dividing the skip macroblock into smaller skip sub blocks and using predictive motion vectors predicted from motion vectors of blocks adjacent to the skip sub blocks, and a method and apparatus for decoding the skip macroblock is provided. Accordingly, by adding predetermined binary information indicating whether the skip macroblock is divided to the skip macroblock that generally transmits only prediction mode information, division of the skip macroblock can be adaptively applied, or all skip macroblocks can be divided into sub-blocks to be processed, so that pixel values in the skip macroblock can be predicted by using motion vectors of spatially adjacent blocks. Therefore, prediction efficiency increases.

Abstract translation: 提供一种通过将跳过宏块划分为更小的跳跃子块并使用从与跳过子块相邻的块的运动矢量预测的预测运动矢量来对跳过宏块进行编码的方法和装置，以及用于对跳过宏块进行解码的方法和装置。 因此，通过将表示跳过宏块是否被划分为通常只发送预测模式信息的跳跃宏块的预定二进制信息，可以自适应地应用跳过宏块的划分，或者所有跳过宏块可以被划分为要被处理的子块 ，使得可以通过使用空间相邻块的运动矢量来预测跳跃宏块中的像素值。 因此，预测效率提高。

公开(公告)号：US20090232208A1

公开(公告)日：2009-09-17

申请号：US12402903

申请日：2009-03-12

Applicant: Kyo-hyuk LEE ,  Woo-jin HAN ,  Sang-rae LEE ,  So-young KIM ,  Tammy Lee

Inventor： Kyo-hyuk LEE ,  Woo-jin HAN ,  Sang-rae LEE ,  So-young KIM ,  Tammy Lee

IPC: H04N7/32

CPC classification number: H04N19/61 ,  H04N19/82

Abstract: Provided are a method and an apparatus for encoding and decoding an image to improve the efficiency for predicting an image by reducing discontinuity between prediction blocks by performing filtering on a prediction picture. The method of encoding an image includes generating filtered prediction pixel values by performing filtering in which a weighted sum of prediction pixels of a prediction picture with respect to peripheral prediction pixels is calculated, and encoding a difference value between the filtered prediction picture comprising the filtered prediction pixel values and a current picture.

Abstract translation: 提供了一种用于对图像进行编码和解码以通过对预测图像执行滤波来减小预测块之间的不连续性来提高图像预测效率的方法和装置。 编码图像的方法包括：通过执行滤波，生成经滤波的预测像素值，其中计算预测图像相对于周围预测像素的预测像素的加权和，并且对包括滤波预测的滤波预测图像进行编码 像素值和当前照片。

公开(公告)号：US20070274389A1

公开(公告)日：2007-11-29

申请号：US11708630

申请日：2007-02-21

Applicant: So-young Kim ,  Kyo-hyuk Lee ,  Woo-jin Han ,  Tammy Lee ,  Manu Mathew

Inventor： So-young Kim ,  Kyo-hyuk Lee ,  Woo-jin Han ,  Tammy Lee ,  Manu Mathew

IPC: H04N11/04

CPC classification number: H04N19/33 ,  H04N19/112 ,  H04N19/159 ,  H04N19/16 ,  H04N19/176 ,  H04N19/513 ,  H04N19/61

Abstract: A method and apparatus for encoding/decoding a multi-layer interlaced video signal having macroblocks coded in an interlaced manner is provided. The method includes determining whether a pair of macroblocks of a current layer are of a frame type and a corresponding pair of macroblocks of a lower layer are of a field type; and predicting and encoding a macroblock of the current layer by interpolating information of the top or bottom field of a corresponding macroblock of the lower layer, if the pair of the macroblocks of the current layer are of the frame type and the corresponding pair of the macroblocks of the lower layer are of the field type, and the top and bottom fields of the corresponding pair of the macroblocks of the lower layer have been coded in different prediction modes.

Abstract translation: 提供了一种用于以具有以隔行方式编码的宏块的多层隔行视频信号进行编码/解码的方法和装置。 该方法包括确定当前层的一对宏块是否是帧类型，并且下层的对应的一对宏块是场类型; 并且如果当前层的一对宏块是帧类型和对应的宏块对，则通过内插下层的对应宏块的顶部或底部场的信息来预测和编码当前层的宏块 较低层的宏块的顶部和底部区域已被编码为不同的预测模式。

公开(公告)号：US20070171969A1

公开(公告)日：2007-07-26

申请号：US11519131

申请日：2006-09-12

Applicant: Woo-jin Han ,  So-young Kim ,  Tammy Lee ,  Kyo-hyuk Lee

Inventor： Woo-jin Han ,  So-young Kim ,  Tammy Lee ,  Kyo-hyuk Lee

IPC: H04B1/66 ,  H04N11/04

CPC classification number: H04N19/577 ,  H04N19/31 ,  H04N19/33 ,  H04N19/82

Abstract: A method and apparatus for reducing block artifacts during a residual prediction in a multilayer-based video coding are disclosed. The multilayer-based video encoding method includes obtaining a difference between a predicted block for a second block of a lower layer, which corresponds to a first block included in a current layer, and the second block; adding the obtained difference to a predicted block for the first block; smoothing a third block generated as a result of the addition using a smoothing function; and encoding a difference between the first block and the smoothed third block.

Abstract translation: 公开了一种用于在基于多层的视频编码中的残差预测期间减少块伪像的方法和装置。 基于多层的视频编码方法包括获得对应于包括在当前层中的第一块的下层的第二块的预测块与第二块之间的差; 将所获得的差值与所述第一块的预测块相加; 使用平滑函数平滑作为添加的结果生成的第三块; 并且对第一块和平滑的第三块之间的差进行编码。