公开(公告)号：US10015512B2

公开(公告)日：2018-07-03

申请号：US13641673

申请日：2011-04-18

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

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

IPC分类号： H04N19/96 ,  H04N19/513 ,  H04N19/119 ,  H04N19/109 ,  H04N19/463 ,  H04N19/176 ,  H04N19/139 ,  H04N19/186 ,  H04N19/52

CPC分类号： H04N19/513 ,  H04N19/109 ,  H04N19/119 ,  H04N19/139 ,  H04N19/176 ,  H04N19/186 ,  H04N19/463 ,  H04N19/52 ,  H04N19/96

摘要： A video encoding/decoding apparatus includes a video encoder for encoding block mode information indicating whether a block mode of a block to be encoded in a macroblock is a skip mode, partition mode information and skip motion information including index information, encoding at least one of transform type information, CBP information, and delta quantization parameter information of the block according to a combination of the block mode information and the partition mode information, and encoding coefficient information of the block based on the encoded information of the block, and a video decoder for decoding a bitstream to reconstruct block mode information indicating whether a block mode of a block to be decoded is a skip mode, partition mode information indicating whether block is divided into subblocks, and skip motion information including index information, and reconstructing block based on the reconstructed information by using reconstructed skip motion information.

公开(公告)号：US09872019B2

公开(公告)日：2018-01-16

申请号：US13811596

申请日：2011-07-20

申请人： Jinhan Song ,  Jeongyeon Lim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jongki Han ,  Jungyoup Yang

发明人： Jinhan Song ,  Jeongyeon Lim ,  Byeungwoo Jeon ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Jongki Han ,  Jungyoup Yang

IPC分类号： H04N19/176 ,  H04N19/86 ,  H04N19/117 ,  H04N19/159 ,  H04N19/136 ,  H04N19/82 ,  H04N19/167

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/136 ,  H04N19/159 ,  H04N19/167 ,  H04N19/82

摘要： An encoding apparatus for encoding a video signal includes: a prediction unit for generating a prediction block of a current block by using intra prediction or inter prediction; a residual data encoding unit for generating a residual block by using the current block and the prediction block, and transforming and quantizing the residual block; a residual data decoding unit for decoding a transformed and quantized residual block by inversely quantizing and inversely transforming the transformed and quantized residual block; and a deblocking filter unit for generating a reconstructed block by using a decoded residual block and the prediction block, and performing deblocking filtering, based on inter prediction information and intra prediction information of the reconstructed block and blocks neighboring the reconstructed block. The intra prediction information includes at least one of an intra prediction mode and an intra prediction block size.

公开(公告)号：US09686549B2

公开(公告)日：2017-06-20

申请号：US13124635

申请日：2009-10-09

申请人： Hayoon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Daeyeon Kim ,  Donghoon Han ,  Kioh Kim

发明人： Hayoon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Daeyeon Kim ,  Donghoon Han ,  Kioh Kim

IPC分类号： H04N19/105 ,  H04N19/182 ,  H04N19/124 ,  H04N19/61 ,  H04N19/109 ,  H04N19/117 ,  H04N19/523 ,  H04N19/57 ,  H04N19/625

CPC分类号： H04N19/105 ,  H04N19/109 ,  H04N19/117 ,  H04N19/124 ,  H04N19/154 ,  H04N19/167 ,  H04N19/17 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/523 ,  H04N19/57 ,  H04N19/61 ,  H04N19/625

摘要： An apparatus for generating a reference frame is disclosed including: an interpolation unit for interpolating a reference frame per fractional pixel; a virtual encoder for determining a block mode of a current frame and a motion vector according to the block mode by using an interpolated reference frame; an offset calculator for calculating an offset for each pixel of the interpolated reference frame by using the block mode and the motion vector; and an offset adder for generating an offset interpolated reference frame by adding the offset for each pixel to each pixel of the interpolated reference frame. By adding the offset calculated according to the block mode to the reference frame for the inter prediction and making the reference frame to be used for the motion estimation and compensation similar to the current frame to be encoded, motion prediction is accurate and compression efficiency is improved.

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：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：US09154806B2

公开(公告)日：2015-10-06

申请号：US13391575

申请日：2010-08-23

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Juock Lee ,  Dongwon Kim

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Joohee Moon ,  Yunglyul Lee ,  Haekwang Kim ,  Byeungwoo Jeon ,  Juock Lee ,  Dongwon Kim

IPC分类号： H04N7/32 ,  H04N19/517 ,  H04N19/46 ,  H04N19/463 ,  H04N19/91 ,  H04N19/523

CPC分类号： H04N19/517 ,  H04N19/46 ,  H04N19/463 ,  H04N19/523 ,  H04N19/91

摘要： The present disclosure relates to a method and apparatus for improving the encoding efficiency by adaptively changing the resolution of the motion vector in the inter prediction encoding and inter prediction decoding of a video. The apparatus includes: a block identification unit for identifying a colocated block included in a reference picture as a block located at a position equal to a position of a current block; a moving block determiner for determining if the current block is a moving block, based on a motion vector of the colocated block; a motion vector determiner for determining a motion vector of the current block according to a result of the determining of if the current block is a moving block; and a resolution converter for converting a resolution of the motion vector of the colocated block.

摘要翻译： 本公开涉及一种通过在视频的帧间预测编码和帧间预测解码中自适应地改变运动矢量的分辨率来提高编码效率的方法和装置。 该装置包括：块识别单元，用于将包括在参考图片中的共位块识别为位于等于当前块的位置的位置的块; 移动块确定器，用于基于所述共定位块的运动矢量确定当前块是否是移动块; 运动矢量确定器，用于根据确定当前块是否是运动块的结果来确定当前块的运动矢量; 以及分辨率转换器，用于转换所述共定位块的运动矢量的分辨率。

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：US09070179B2

公开(公告)日：2015-06-30

申请号：US13190265

申请日：2011-07-25

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

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

IPC分类号： G06K9/36 ,  G06T9/00 ,  H04N19/52 ,  H04N19/51 ,  H04N19/103 ,  H04N19/107

CPC分类号： H04N19/521 ,  G06T9/00 ,  H04N19/103 ,  H04N19/107 ,  H04N19/124 ,  H04N19/139 ,  H04N19/167 ,  H04N19/176 ,  H04N19/182 ,  H04N19/51 ,  H04N19/52

摘要： An apparatus and a method for motion vector encoding/decoding, and to an apparatus and a method for image encoding/decoding using same are provided. The apparatus includes a selector of optimal predicted motion vector PMV from candidate motion vector set of current block; a determiner of motion vector prediction mode of current block with selected motion vector prediction mode from multiple motion vector prediction modes by decision criterion prearranged with motion vector decoding apparatus; and an encoder for determining, by determined motion vector prediction mode, optimal PMV or default predicted motion vector into PMV for current motion vector, encoding differential vector between the current block and PMV, and selectively encoding/outputting determined motion vector prediction mode as encoded motion vector prediction mode by the determined motion vector prediction mode. Bit quantity in encoding a motion vector is reduced improving encoding efficiency and preventing decoder crash even at encoding error, improving decoder.

摘要翻译： 提供了一种用于运动矢量编码/解码的装置和方法，以及一种用于使用其进行图像编码/解码的装置和方法。 该装置包括来自当前块的候选运动矢量集合的最佳预测运动矢量PMV的选择器; 通过用运动矢量解码装置预先布置的决策标准，从多个运动矢量预测模式中选择运动矢量预测模式的当前块的运动矢量预测模式的确定器; 以及编码器，用于通过确定的运动矢量预测模式将当前运动矢量的最佳PMV或默认预测运动矢量确定为PMV，对当前块和PMV之间的差分矢量进行编码，并且将所确定的运动矢量预测模式选择性地编码/输出为编码运动 矢量预测模式通过确定的运动矢量预测模式。 编码运动矢量中的位数降低，提高了编码效率，甚至在编码错误时也防止了解码器崩溃，从而改善了解码器。

公开(公告)号：US08976862B2

公开(公告)日：2015-03-10

申请号：US13001611

申请日：2009-06-17

申请人： Hayoon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Hyemin Jun ,  Daeyeon Kim

发明人： Hayoon Kim ,  Yunglyul Lee ,  Joohee Moon ,  Haekwang Kim ,  Byeungwoo Jeon ,  Hyemin Jun ,  Daeyeon Kim

IPC分类号： H04N7/12 ,  H04N19/182

CPC分类号： H04N19/593 ,  H04N19/11 ,  H04N19/124 ,  H04N19/136 ,  H04N19/167 ,  H04N19/176 ,  H04N19/182 ,  H04N19/50

摘要： The present disclosure relates to an intra prediction method and apparatus and an image encoding/decoding method and apparatus using the same. The disclosure provides the intra prediction apparatus that predicts the pixel values of respective pixels in a current block by weight-averaging the pixel values of one or more adjacent pixels in neighboring blocks to the current block according to the distances between each pixel in the current block and the adjacent pixel(s). According to the disclosure, the current block to be encoded can be predicted more accurately so that the encoding efficiency is improved by reducing the difference between the original block and the predicted block, and thereby video compression efficiency can be improved.

摘要翻译： 本发明涉及一种帧内预测方法及装置及其图像编码/解码方法及装置。 本公开提供了帧内预测装置，其通过根据当前块中的每个像素之间的距离对当前块中的各个像素的像素值进行加权平均，来估计相邻块中的一个或多个相邻像素与当前块的像素值 和相邻像素。 根据本公开，可以更准确地预测当前要编码的块，从而通过减少原始块与预测块之间的差异来提高编码效率，从而可以提高视频压缩效率。