专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

111. 发明授权

US08204127B2 Method and apparatus for encoding and decoding image by using multiple reference-based motion prediction 有权
标题翻译：通过使用多个基于参考的运动预测对图像进行编码和解码的方法和装置
公开(公告)号：US08204127B2
公开(公告)日：2012-06-19
申请号：US12388662
申请日：2009-02-19
申请人： Il-koo Kim , Woo-jin Han , Yu-mi Sohn
发明人： Il-koo Kim , Woo-jin Han , Yu-mi Sohn
IPC分类号： H04N11/02 , H04N11/04
CPC分类号： H04N19/517 , H04N19/105 , H04N19/147 , H04N19/154 , H04N19/176 , H04N19/46 , H04N19/523 , H04N19/56 , H04N19/61
摘要： Provided are a method and apparatus for encoding an image by using motion prediction and a method and apparatus for decoding an image by using motion prediction. The method of encoding an image by using motion prediction, the method includes: determining at least one candidate predictor set including at least one candidate predictor within a candidate predictor range away from a location of a current predictor in a reference frame; determining a reference predictor based on a distortion rate of hypothesis predictors determined according to the at least one candidate predictor of each of the at least one candidate predictor set; performing motion prediction with regard to a current frame by using a reference block corresponding to the reference predictor and a current block; and encoding image data including the current frame based on a result of the motion prediction.
摘要翻译：提供了一种通过使用运动预测对图像进行编码的方法和装置，以及通过使用运动预测来对图像进行解码的方法和装置。通过使用运动预测对图像进行编码的方法，所述方法包括：确定至少一个候选预测器集合，所述至少一个候选预测器集合包括远离参考帧中的当前预测器的位置的候选预测器范围内的至少一个候选预测器; 基于根据所述至少一个候选预测器集合中的每一个的所述至少一个候选预测器确定的假设预测器的失真率来确定参考预测器; 通过使用与所述参考预测器和当前块相对应的参考块来执行关于当前帧的运动预测; 以及基于运动预测的结果对包括当前帧的图像数据进行编码。

112. 发明授权

US08194989B2 Method and apparatus for encoding and decoding image using modification of residual block 有权
标题翻译：使用修改残差块对图像进行编码和解码的方法和装置
公开(公告)号：US08194989B2
公开(公告)日：2012-06-05
申请号：US12032056
申请日：2008-02-15
申请人： Jae-chool Lee , Woo-jin Han
发明人： Jae-chool Lee , Woo-jin Han
IPC分类号： G06K9/36
CPC分类号： H04N19/649 , H04N19/122 , H04N19/132 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/20 , H04N19/61
摘要： Provided are a method and apparatus for encoding and decoding an image. In the encoding method, a residual block of a current block is transformed using a predicted block of the current block so as to increase the spatial correlation among residual values, and DCT is performed on the transformed residual block, thus improving the efficiency of transforming a block having a region that is difficult to precisely predict.
摘要翻译：提供了一种用于对图像进行编码和解码的方法和装置。在编码方法中，使用当前块的预测块来变换当前块的残差块，以增加残差值之间的空间相关性，并且对变换的残差块执行DCT，从而提高变换效率块具有难以精确预测的区域。

113. 发明授权

US07885327B2 Video coding and decoding methods with hierarchical temporal filtering structure, and apparatus for the same 有权
标题翻译：具有分层时间滤波结构的视频编码和解码方法，以及相同的装置
公开(公告)号：US07885327B2
公开(公告)日：2011-02-08
申请号：US11353130
申请日：2006-02-14
申请人： Woo-jin Han
发明人： Woo-jin Han
IPC分类号： H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/615 , H04N19/13 , H04N19/61 , H04N19/63
摘要： A method and apparatus for video coding and decoding with hierarchical temporal filtering structure are disclosed. A video encoding method in a temporal level having a hierarchical temporal filtering structure, includes generating prediction frames from two or more reference frames that temporally precede the current frame; generating a residual frame by subtracting the prediction frames from the current frame; and encoding and transmitting the residual frame.
摘要翻译：公开了一种具有分级时间滤波结构的视频编码和解码方法和装置。一种具有分级时间滤波结构的时间级视频编码方法，包括：从时间上在当前帧之前的两个或更多个参考帧产生预测帧; 通过从当前帧减去预测帧来产生残差帧; 并编码和发送剩余帧。

114. 发明授权

US07680346B2 Method and apparatus for encoding image and method and apparatus for decoding image using human visual characteristics 失效
标题翻译：用于编码图像的方法和装置以及使用人类视觉特征对图像进行解码的方法和装置
公开(公告)号：US07680346B2
公开(公告)日：2010-03-16
申请号：US11590784
申请日：2006-11-01
申请人： Woo-jin Han
发明人： Woo-jin Han
IPC分类号： G06K9/36
CPC分类号： H04N19/18 , H04N19/115 , H04N19/126 , H04N19/132 , H04N19/14
摘要： An image encoding method and apparatus capable of improving image compression efficiency by using human psycho-visual characteristics are provided. In the image encoding method and apparatus, an image signal component of which amplitude is equal to or less than a just noticeable distortion (JND) that is a minimum limit of a visually noticeable image is not encoded according to image characteristics by using the masking effect of the human visual system (HVS), thereby improving an image compression rate without visible deterioration of image quality.
摘要翻译：提供了能够通过使用人心理视觉特性来提高图像压缩效率的图像编码方法和装置。在图像编码方法和装置中，其幅度等于或小于作为视觉上可见图像的最小限度的正常可见失真（JND）的图像信号分量不会根据图像特性通过使用掩蔽效应的人视觉系统（HVS），从而提高图像压缩率而不会使图像质量下降。

115. 发明申请

US20080304569A1 Method and apparatus for encoding and decoding image using object boundary based partition 审中-公开
标题翻译：使用基于对象边界的分区对图像进行编码和解码的方法和装置
公开(公告)号：US20080304569A1
公开(公告)日：2008-12-11
申请号：US12134657
申请日：2008-06-06
申请人： Kyo-hyuk Lee , Jianle Chen , Woo-jin Han , Sang-rae Lee
发明人： Kyo-hyuk Lee , Jianle Chen , Woo-jin Han , Sang-rae Lee
IPC分类号： H04N7/32 , H04N7/26
CPC分类号： H04N19/57 , H04N19/109 , H04N19/119 , H04N19/139 , H04N19/14 , H04N19/147 , H04N19/17 , H04N19/172 , H04N19/176 , H04N19/19 , H04N19/46 , H04N19/51 , H04N19/52 , H04N19/537 , H04N19/543 , H04N19/61
摘要： Provided are a method and apparatus for encoding and decoding an image. The image encoding method includes searching for a reference block for obtaining partition information of a current block, referring to at least one reference picture; dividing the current block based on the partition information obtained from the reference block and performing inter prediction with regard to each of a plurality of partitions included in the current block; and encoding the current block based on a result of the inter prediction.
摘要翻译：提供了一种用于对图像进行编码和解码的方法和装置。图像编码方法包括：参考至少一个参考图片搜索用于获得当前块的分区信息的参考块; 基于从参考块获得的分区信息对当前块进行划分，并对包括在当前块中的多个分区中的每个分区执行帧间预测; 并且基于帧间预测的结果对当前块进行编码。

116. 发明申请

US20080240246A1 VIDEO ENCODING AND DECODING METHOD AND APPARATUS 审中-公开
标题翻译：视频编码和解码方法和设备
公开(公告)号：US20080240246A1
公开(公告)日：2008-10-02
申请号：US12027410
申请日：2008-02-07
申请人： Sang-rae LEE , Woo-jin Han
发明人： Sang-rae LEE , Woo-jin Han
IPC分类号： H04N7/12
CPC分类号： H04N19/14 , H04N19/109 , H04N19/176 , H04N19/51 , H04N19/61
摘要： Provided are a video encoding and decoding method and apparatus, in which a current block is divided into partitions based on an edge in the current block, and motion estimation is performed on the divided partitions. Video encoding efficiency can be improved by encoding partitions that are obtained by dividing the current block along a predetermined line passing through pixels belonging to an edge around the current block from among neighboring pixels around the current block.
摘要翻译：提供了一种视频编码和解码方法和装置，其中当前块基于当前块中的边缘被划分成分区，并且对划分的分区执行运动估计。可以通过对通过当前块周围的相邻像素中沿着属于当前块周围的边缘的像素的预定线分割当前块而获得的分区来提高视频编码效率。

117. 发明申请

US20080107181A1 METHOD OF AND APPARATUS FOR VIDEO ENCODING AND DECODING BASED ON MOTION ESTIMATION 有权
标题翻译：基于运动估计的视频编码和解码的方法和装置
公开(公告)号：US20080107181A1
公开(公告)日：2008-05-08
申请号：US11936128
申请日：2007-11-07
申请人： Woo-jin Han , Kyo-hyuk Lee , Tammy Lee
发明人： Woo-jin Han , Kyo-hyuk Lee , Tammy Lee
IPC分类号： H04N7/26
CPC分类号： H04N19/537 , H04N19/132 , H04N19/147 , H04N19/176 , H04N19/52 , H04N19/61
摘要： 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.
摘要翻译：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。

118. 发明申请

US20060013311A1 Video decoding method using smoothing filter and video decoder therefor 审中-公开
标题翻译：使用平滑滤波器和视频解码器的视频解码方法
公开(公告)号：US20060013311A1
公开(公告)日：2006-01-19
申请号：US11153410
申请日：2005-06-16
申请人： Woo-jin Han
发明人： Woo-jin Han
IPC分类号： H04N11/04
CPC分类号： H04N19/615 , H04N19/13 , H04N19/44 , H04N19/59 , H04N19/61 , H04N19/63 , H04N19/86
摘要： A method and apparatus for increasing output picture quality at a decoding terminal by using a smoothing filter are provided. The video decoding method includes generating a residual frame from an input bitstream, performing wavelet-based upsampling on the residual frame, performing non-wavelet-based downsampling on the upsampled frame, and performing inverse temporal filtering on the downsampled frame.
摘要翻译：提供了一种通过使用平滑滤波器来增加解码终端的输出图像质量的方法和装置。视频解码方法包括从输入比特流生成残差帧，对残差帧执行基于小波的上采样，对上采样帧执行基于小波的下采样，对下采样帧执行逆时间滤波。

119. 发明申请

US20050117640A1 Method and apparatus for scalable video encoding and decoding 审中-公开
标题翻译：用于可缩放视频编码和解码的方法和装置
公开(公告)号：US20050117640A1
公开(公告)日：2005-06-02
申请号：US10998580
申请日：2004-11-30
申请人： Woo-jin Han
发明人： Woo-jin Han
IPC分类号： H04N7/24 , H04N7/12
CPC分类号： H04N19/615 , H04N19/13 , H04N19/31 , H04N19/61 , H04N19/63 , H04N19/85
摘要： Disclosed is a scalable video coding algorithm. A method for video coding includes temporally filtering frames in the same sequence to a decoding sequence thereof to remove temporal redundancy, obtaining and quantizing transformation coefficients from frames whose temporal redundancy is removed, and generating bitstreams. A video encoder comprises a temporal transformation unit, a spatial transformation unit, a quantization unit and a bitstream generation unit to perform the method. A method for video decoding is basically reverse in sequence to the video coding. A video decoder extracts information necessary for video decoding by interpreting the received bitstream and decoding it. Thus, video streams may be generated by allowing a decoder to decode the generated bitstreams, while maintaining the temporal scalability on an encoder-side.
摘要翻译：公开了一种可扩展的视频编码算法。一种用于视频编码的方法包括以与其解码序列相同的顺序对帧进行时间滤波，以去除时间冗余，从其时间冗余被去除的帧获得和量化变换系数，并生成比特流。视频编码器包括时间变换单元，空间变换单元，量化单元和比特流生成单元，以执行该方法。视频解码的方法基本上与视频编码相反。视频解码器通过解释所接收的比特流并解码来提取视频解码所需的信息。因此，可以通过允许解码器解码生成的比特流，同时保持编码器侧的时间可扩展性来生成视频流。

120. 发明授权

US09712822B2 Video encoding method and video encoding apparatus and video decoding method and video decoding apparatus, which perform deblocking filtering based on tree-structure encoding units 有权
公开(公告)号：US09712822B2
公开(公告)日：2017-07-18
申请号：US13641403
申请日：2011-04-13
申请人： Woo-jin Han , Elena Alshina , Jung-hye Min , Alexander Alshin , Il-koo Kim , Nikolay Shlyakhov , Tammy Lee , Sun-il Lee , Min-su Cheon , Jianle Chen , Vadim Seregin , Yoon-mi Hong
发明人： Woo-jin Han , Elena Alshina , Jung-hye Min , Alexander Alshin , Il-koo Kim , Nikolay Shlyakhov , Tammy Lee , Sun-il Lee , Min-su Cheon , Jianle Chen , Vadim Seregin , Yoon-mi Hong
IPC分类号： H04N7/32 , H04N19/119 , H04N19/176 , H04N19/196 , H04N19/50 , H04N19/147 , H04N19/61 , H04N19/96 , H04N19/513 , H04N19/593 , H04N19/44 , H04N19/52 , H04N19/172
CPC分类号： 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
摘要： A method of encoding a video is provided, the method includes: determining a filtering boundary on which deblocking filtering is to be performed based on at least one data unit from among a plurality of coding units that are hierarchically configured according to depths indicating a number of times at least one maximum coding unit is spatially spilt, and a plurality of prediction units and a plurality of transformation units respectively for prediction and transformation of the plurality of coding units, determining filtering strength at the filtering boundary based on a prediction mode of a coding unit to which pixels adjacent to the filtering belong from among the plurality of coding units, and transformation coefficient values of the pixels adjacent to the filtering boundary, and performing deblocking filtering on the filtering boundary based on the determined filtering strength.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式