公开(公告)号：US20110182362A1

公开(公告)日：2011-07-28

申请号：US13121895

申请日：2009-09-28

申请人： Hayoon Kim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jungyoup Yang ,  Kwanghyun Won

发明人： Hayoon Kim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jungyoup Yang ,  Kwanghyun Won

IPC分类号： H04N7/34

CPC分类号： H04N19/513 ,  H04N19/124 ,  H04N19/137 ,  H04N19/44 ,  H04N19/503 ,  H04N19/52 ,  H04N19/60 ,  H04N19/61

摘要： The present disclosure relates to a method and an apparatus for motion vector encoding/decoding through estimations of multiple motion vectors, and to a method and an apparatus for video encoding/decoding using the same. The disclosure provides a motion vector encoding apparatus including a motion vector estimator for estimating a plurality of motion vectors with estimating one of the plurality of motion vectors as a motion vector of a current block and estimating the remaining motion vectors by one or more predefined estimation criteria in agreement with a video decoding apparatus; and a motion information encoder for encoding motion information generated by using the plurality of motion vectors. According to the disclosure, estimations are enabled by using more accurate motion vectors while reducing the bit rate for encoding the motion vectors leading to an improvement of the compressing efficiency.

摘要翻译： 本公开涉及一种用于通过多个运动矢量的估计进行运动矢量编码/解码的方法和装置，以及涉及使用其进行视频编码/解码的方法和装置。 本公开提供一种运动矢量编码装置，其包括运动矢量估计器，用于通过估计多个运动矢量中的一个运动矢量作为当前块的运动矢量来估计多个运动矢量，并通过一个或多个预定义的估计准则来估计剩余的运动矢量 与视频解码装置一致; 以及运动信息编码器，用于对通过使用多个运动矢量生成的运动信息进行编码。 根据本公开，通过使用更精确的运动矢量来实现估计，同时减少用于编码运动矢量的比特率，导致压缩效率的提高。

公开(公告)号：US20110170601A1

公开(公告)日：2011-07-14

申请号：US13001599

申请日：2009-06-19

申请人： Hayoon Kim ,  Byeungwoo Jeon ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Jungyoup Yang ,  Kwanghyun Won

发明人： Hayoon Kim ,  Byeungwoo Jeon ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Jungyoup Yang ,  Kwanghyun Won

IPC分类号： H04N7/12

CPC分类号： H04N19/52 ,  H04N19/105 ,  H04N19/176 ,  H04N19/184 ,  H04N19/46

摘要： A method for encoding/decoding a motion vector and an apparatus thereof are disclosed. The method includes defining a candidate motion vector set with respect to a current motion vector; selecting a predicted motion vector from the candidate motion vector set; determining a predictability of the predicted motion vector in a decoding apparatus; encoding the current motion vector by using a motion vector prediction mode for indicating the predicted motion vector and the predictability, if the predictability is determined positive; and encoding the current motion vector by using a motion vector prediction mode for indicating a default predicted motion vector and an unpredictability, if the predictability is determined negative. According to the disclosure, it becomes unnecessary to directly notify of the predicted motion vector of the current motion vector to the decoding apparatus, and instead a predetermined shared function is provided to inform of or search the predicted motion vector.

摘要翻译： 公开了一种用于编码/解码运动矢量的方法及其装置。 该方法包括定义相对于当前运动矢量设置的候选运动矢量; 从所述候选运动矢量集中选择预测的运动矢量; 确定解码装置中预测的运动矢量的可预测性; 通过使用用于指示预测运动矢量的运动矢量预测模式和可预测性，如果可预测性被确定为正，则对当前运动矢量进行编码; 并且如果可预测性被确定为负，则使用用于指示默认预测运动矢量的运动矢量预测模式和不可预测性来编码当前运动矢量。 根据本公开，不需要将直接通知当前运动矢量的预测运动矢量到解码装置，而是提供预定的共享功能来通知或搜索预测的运动矢量。

公开(公告)号：US09641844B2

公开(公告)日：2017-05-02

申请号：US13264311

申请日：2010-04-14

申请人： Sunyeon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Daeyeon Kim

发明人： Sunyeon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Daeyeon Kim

IPC分类号： H04N19/61 ,  H04N19/11 ,  H04N19/14

CPC分类号： H04N19/11 ,  H04N19/14 ,  H04N19/61

摘要： The present disclosure concerns a method and apparatus for selecting an intra prediction mode and a video encoding/decoding method and apparatus using same. The encoding apparatus selects an intra prediction mode of current block to encode from input video by a variation of the value of pixel adjacent to the current block; encodes a residual block from intra-predicting the current block in the selected intra prediction mode of current block to generate coded coefficient bit having a bitstream generator for generating and outputting a bitstream including the coded coefficient bit and a prediction mode bit representing the selected intra prediction mode of current block by a macroblock or subblock unit with the prediction mode bit included selectively in the bitstream depending on the variation. Accordingly, selection process of a prediction mode for image compression is simplified, a faster compression is obtained and compressed data is deflated to improve compression efficiency.

公开(公告)号：US09532065B2

公开(公告)日：2016-12-27

申请号：US13697520

申请日：2011-05-12

申请人： Jinhan Song ,  Jeongyeon Lim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Daeyeon Kim ,  Sungwook Hong

发明人： Jinhan Song ,  Jeongyeon Lim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Jongki Han ,  Daeyeon Kim ,  Sungwook Hong

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/44 ,  H04N19/86 ,  H04N19/61 ,  H04N19/80 ,  H04N19/176 ,  H04N19/117 ,  H04N19/157 ,  H04N19/82

CPC分类号： H04N19/117 ,  H04N19/107 ,  H04N19/119 ,  H04N19/12 ,  H04N19/136 ,  H04N19/157 ,  H04N19/176 ,  H04N19/44 ,  H04N19/61 ,  H04N19/80 ,  H04N19/82 ,  H04N19/86 ,  H04N19/865

摘要： An image filtering apparatus and method and a video encoding/decoding apparatus and method using the same are disclosed. The image filtering apparatus includes: a boundary identifying unit for identifying a boundary between two transform blocks included in an image; a pixel/strength selecting unit for selecting a filtering strength according to a size of at least one transform block among the two transform blocks; and a filtering unit for filtering at least one pixel included in a region adjacent to the boundary.

摘要翻译： 公开了一种图像滤波装置和方法以及使用该图像滤波装置和方法的视频编码/解码装置和方法。 图像滤波装置包括：边界识别单元，用于识别包括在图像中的两个变换块之间的边界; 像素/强度选择单元，用于根据两个变换块中的至少一个变换块的大小来选择滤波强度; 以及滤波单元，用于对包含在与边界相邻的区域中的至少一个像素进行滤波。

公开(公告)号：US20130034156A1

公开(公告)日：2013-02-07

申请号：US13641670

申请日：2011-04-12

申请人： Jinhan Song ,  Jeongyeon Lim ,  Jongki Han ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Chanwon Seo ,  Hyoungmee Park ,  Daeyeon Kim

发明人： Jinhan Song ,  Jeongyeon Lim ,  Jongki Han ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Chanwon Seo ,  Hyoungmee Park ,  Daeyeon Kim

IPC分类号： H04N7/32

CPC分类号： H04N19/577 ,  H04N19/105 ,  H04N19/172 ,  H04N19/423 ,  H04N19/433 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/573 ,  H04N19/58

摘要： An inter-prediction method and a video encoding/decoding method using the inter-prediction method are disclosed. The video encoding method using inter-prediction includes: encoding a first picture that serves as a reference for random access; inter-prediction encoding a block included in a second picture, which is displayed before the first picture, by using a plurality of reference pictures; generating reference picture information representing whether a past picture, which is displayed before the second picture, is used as a reference picture for encoding the second picture; and transmitting the encoded first and second pictures and the reference picture information.

摘要翻译： 公开了使用帧间预测方法的帧间预测方法和视频编码/解码方法。 使用帧间预测的视频编码方法包括：对用作随机存取的基准的第一图像进行编码; 通过使用多个参考图片来对在第一图像之前显示的第二图像中包括的块进行帧间预测编码; 产生表示在第二图像之前显示的过去图像被用作用于对第二图像进行编码的参考图像的参考图像信息; 以及发送编码的第一和第二图像和参考图像信息。

公开(公告)号：US09319710B2

公开(公告)日：2016-04-19

申请号：US13002582

申请日：2009-06-26

申请人： Hayoon Kim ,  Haekwang Kim ,  Byeungwoo Jeon ,  Yunglyul Lee ,  Joohee Moon ,  Jie Jia

发明人： Hayoon Kim ,  Haekwang Kim ,  Byeungwoo Jeon ,  Yunglyul Lee ,  Joohee Moon ,  Jie Jia

IPC分类号： H04N19/577 ,  H04N19/93

CPC分类号： H04N19/577 ,  H04N19/93

摘要： Video encoding and its corresponding decoding are disclosed. The video encoding incorporates: a predictor for predicting a pixel value of each pixel in a current block of the video to generate a predicted pixel value; a subtractor for calculating a difference between an original pixel value of the pixel in the current block and the predicted pixel value of the pixel in the current block to generate a residual signal; a transformer for transforming the residual signal into frequency coefficients; a quantizer for quantizing the transformed frequency coefficients; and an encoder for encoding the quantized frequency coefficients by using one of different variable length coding tables.

摘要翻译： 公开了视频编码及其对应的解码。 视频编码包括：预测器，用于预测视频的当前块中每个像素的像素值以产生预测像素值; 用于计算当前块中的像素的原始像素值与当前块中的像素的预测像素值之间的差异以产生残差信号的减法器; 用于将残余信号变换为频率系数的变压器; 用于量化变换频率系数的量化器; 以及编码器，用于通过使用不同的可变长度编码表之一来对量化的频率系数进行编码。

公开(公告)号：US09137546B2

公开(公告)日：2015-09-15

申请号：US13124070

申请日：2009-10-07

申请人： Kwanghyun Won ,  Hayoon Kim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jungyoup Yang

发明人： Kwanghyun Won ,  Hayoon Kim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jungyoup Yang

IPC分类号： H04N19/61 ,  H04N19/573 ,  H04N19/52 ,  H04N19/567 ,  H04N19/46

CPC分类号： H04N19/573 ,  H04N19/124 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/567 ,  H04N19/61

摘要： A motion vector encoding apparatus includes: an optimum motion vector determiner for determining optimum motion vectors for multiple reference pictures with respect to a current motion vector of a current block; a motion vector encoding mode determiner for determining a motion vector encoding mode according to whether a motion vector decoding apparatus can predict the optimum motion vectors for the multiple reference pictures; and a motion vector encoder for generating and encoding motion information on the multiple reference pictures by using the optimum motion vectors for the multiple reference pictures or preset default motion vectors for the multiple reference pictures according to the motion vector encoding mode, and generating motion vector encoded data by encoding the motion vector encoding mode. The motion vector encoding apparatus can more accurately predict a predicted motion vector of the current motion vector for multiple reference pictures, so as to improve the compression efficiency.

摘要翻译： 运动矢量编码装置包括：最佳运动矢量确定器，用于相对于当前块的当前运动矢量确定用于多个参考图像的最佳运动矢量; 运动矢量编码模式确定器，用于根据运动矢量解码装置是否可以预测多个参考图像的最佳运动矢量来确定运动矢量编码模式; 以及运动矢量编码器，用于根据运动矢量编码模式，通过使用多个参考图像的多个参考图像的最佳运动矢量或多个参考图像的预设默认运动矢量来生成和编码关于多个参考图像的运动信息，并且生成运动矢量编码 数据通过编码运动矢量编码模式。 运动矢量编码装置可以更准确地预测多个参考图像的当前运动矢量的预测运动矢量，以提高压缩效率。

公开(公告)号：US08711935B2

公开(公告)日：2014-04-29

申请号：US13062840

申请日：2009-09-15

申请人： Hayoon Kim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jungyoup Yang ,  Kwanghyun Won

发明人： Hayoon Kim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jungyoup Yang ,  Kwanghyun Won

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  G06K9/46 ,  G06K9/36

CPC分类号： H04N19/11 ,  H04N19/147 ,  H04N19/16 ,  H04N19/176 ,  H04N19/196 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

摘要： An apparatus and a method for video encoding/decoding using predictability of an intra-prediction mode are disclosed. The apparatus for encoding a video of the present disclosure includes: an intra-prediction mode determiner for determining an encoder prediction mode which is an intra-prediction mode of a current block of the video; an encoder for encoding a residual block generated by subtracting, from the current block, a predicted block generated by predicting the current block according to the encoder prediction mode; a mode information generator for generating mode information according to whether or not a video decoding apparatus is able to predict the encoder prediction mode; and an encoded data generator for generating encoded data including the encoded residual block and the mode information. The present disclosure can enhance compression in video encoding/decoding by using intra-prediction to predict the video with a minimum necessary bit rate.

摘要翻译： 公开了一种使用帧内预测模式的可预测性进行视频编码/解码的装置和方法。 用于对本公开的视频进行编码的装置包括：帧内预测模式确定器，用于确定作为视频的当前块的帧内预测模式的编码器预测模式; 编码器，用于对通过从当前块中减去根据编码器预测模式预测当前块而产生的预测块而产生的残差块; 模式信息生成器，用于根据视频解码装置是否能够预测编码器预测模式来生成模式信息; 以及编码数据生成器，用于生成包括编码的残差块和模式信息的编码数据。 本公开可以通过使用帧内预测来以最小必需比特率预测视频来增强视频编码/解码中的压缩。

公开(公告)号：US20110176607A1

公开(公告)日：2011-07-21

申请号：US13000977

申请日：2009-06-16

申请人： Hayoon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Kihun Han

发明人： Hayoon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Kihun Han

IPC分类号： H04N7/12

CPC分类号： H04N19/593

摘要： Video encoding/decoding method and apparatus using a block transformation are disclosed. The apparatus encodes the video through predicting each pixel in a current block of the video by using one or more adjacent pixels, which are encoded prior to encoding the current block and have the closest proximity to the pixels respectively in a predetermined prediction direction, and wherein the current block is sized L×M with L being unequal to M. It has become possible to predict the pixels in the block starting from closest one of the pixels in the prediction direction in order to provide more accurate block predictions and then raise the compression efficiency that leaps to more efficient video encoding/decoding performance.

摘要翻译： 公开了使用块变换的视频编码/解码方法和装置。 该装置通过使用一个或多个相邻像素预测视频的当前块中的每个像素来对视频进行编码，所述相邻像素在编码当前块之前被编码并且在预定的预测方向上分别与像素最接近，并且其中 当前块的大小为L×M，其中L不等于M.可以从预测方向上的最近一个像素开始预测块中的像素，以便提供更准确的块预测，然后提高压缩 效率跃进到更高效的视频编码/解码性能。

公开(公告)号：US20110158315A1

公开(公告)日：2011-06-30

申请号：US13002259

申请日：2009-08-31

申请人： Hayoon Kim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Mincheol Park

发明人： Hayoon Kim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Mincheol Park

IPC分类号： H04N7/26

CPC分类号： H04N19/593 ,  H04N19/105 ,  H04N19/119 ,  H04N19/124 ,  H04N19/129 ,  H04N19/176 ,  H04N19/184 ,  H04N19/503 ,  H04N19/61

摘要： The present disclosure relates to an apparatus and method for encoding/decoding videos using prediction direction change and selective encoding. The present disclosure provides a video encoding apparatus that encodes the current block of a video, comprising a rectangle encoder for dividing and then successively encoding the current block at input into rectangular block units to output a rectangularly encoded bitstream; a square encoder for encoding the current block at input in square block units to output a squarely encoded bitstream; and an encoding selector for calculating the encoding costs of the rectangularly encoded bitstream and the squarely encoded bitstream so as to output the bitstream with a minimum encoding cost. According to the present disclosure, the prediction accuracy may be increased when encoding or decoding videos so that video encoding efficiency can be improved.

摘要翻译： 本公开涉及一种使用预测方向改变和选择性编码对视频进行编码/解码的装置和方法。 本公开提供了一种对视频的当前块进行编码的视频编码装置，包括矩形编码器，用于将输入中的当前块分割，然后连续地编码为矩形块单位，以输出矩形编码比特流; 一个平方编码器，用于以平方块单位对输入端的当前块进行编码，以输出正交编码的比特流; 以及编码选择器，用于计算矩形编码比特流和正交编码比特流的编码成本，以便以最小编码成本输出比特流。 根据本公开，当对视频进行编码或解码时可以提高预测精度，从而可以提高视频编码效率。