公开(公告)号：US20130230105A1

公开(公告)日：2013-09-05

申请号：US13821528

申请日：2011-09-07

申请人： Jinhan Song ,  Jeongyeon Lim ,  Tae Young Jung ,  Hyuk Lee ,  Jechang Jeong

发明人： Jinhan Song ,  Jeongyeon Lim ,  Tae Young Jung ,  Hyuk Lee ,  Jechang Jeong

IPC分类号： H04N7/26

CPC分类号： H04N19/176 ,  H04N19/11 ,  H04N19/14 ,  H04N19/46 ,  H04N19/593

摘要： An intra-prediction encoding/decoding apparatus and method is provided that omits transmission of prediction mode information using characteristics of reference pixels. The present disclosure provides an intra-prediction encoding apparatus and method for omitting transmission of additional information of a predicted mode of the current block through the use of characteristics of reference pixels adjacent to a current block and thereby reducing overhead when a bitstream is generated, and improving the efficiency of encoding and decoding an image while maintaining the accuracy of intra-predictions.The intra-prediction encoding apparatus includes a characteristic information calculator for calculating characteristic information of a directionality by selecting at least one reference pixels adjacent to a current block to encode, a comparer for comparing between a predetermined reference value and the characteristic information of the directionality calculated by the characteristic information calculator, a prediction mode determining unit for determining a prediction mode for the current block to be a mode corresponding to the selected reference pixel when a result of the comparison performed by the comparer satisfies a predetermined condition, and an encoder for encoding a residual between a predicted block according to the determined mode and the current block, and omitting encoding mode information of the determined mode when the result of the comparison satisfies the predetermined condition.

摘要翻译： 提供了使用参考像素的特性来省略预测模式信息的传输的帧内预测编码/解码装置和方法。 本公开提供了一种帧内预测编码装置和方法，用于通过使用与当前块相邻的参考像素的特性来省略当前块的预测模式的附加信息的传输，从而在生成比特流时减少开销;以及 提高图像的编码和解码效率，同时保持预测精度。 帧内预测编码装置包括：特征信息计算器，用于通过选择与当前块相邻的至少一个参考像素来计算方向性的特征信息进行编码;比较器，用于比较预定参考值和所计算的方向性的特征信息 所述预测模式确定单元，当所述比较器的比较结果满足预定条件时，将当前块的预测模式确定为与所选择的参考像素相对应的模式;以及编码器，用于编码 根据确定的模式的预测块与当前块之间的残差，并且当比较结果满足预定条件时省略所确定的模式的编码模式信息。

公开(公告)号：US20130230104A1

公开(公告)日：2013-09-05

申请号：US13821455

申请日：2011-09-07

申请人： Jinhan Song ,  Jeongyeon Lim ,  Tae Young Jung ,  Yong Hoon Kim ,  Jechang Jeong

发明人： Jinhan Song ,  Jeongyeon Lim ,  Tae Young Jung ,  Yong Hoon Kim ,  Jechang Jeong

IPC分类号： H04N7/26

CPC分类号： H04N19/176 ,  H04N19/11 ,  H04N19/14 ,  H04N19/157 ,  H04N19/593

摘要： A video encoding/decoding method and apparatus select a prediction mode set based on neighboring pixels and, in some embodiments, obviate the need to encode additional information for selecting a prediction mode set and thereby improve the performance of compression.

摘要翻译： 视频编码/解码方法和装置选择基于相邻像素的预测模式集合，并且在一些实施例中，消除了对用于选择预测模式集合的附加信息进行编码从而提高压缩性能的需要。

公开(公告)号：US20130259126A1

公开(公告)日：2013-10-03

申请号：US13882495

申请日：2011-10-26

申请人： Jinhan Song ,  Jeongyeon Lim ,  Tae Young Jung ,  Tae Ho Kim ,  Jechang Jeong

发明人： Jinhan Song ,  Jeongyeon Lim ,  Tae Young Jung ,  Tae Ho Kim ,  Jechang Jeong

IPC分类号： H04N7/46

CPC分类号： H04N19/463 ,  H04N19/59 ,  H04N19/70 ,  H04N19/96

摘要： In a video encoding and/or decoding apparatus and/or method, a video encoder partitions a reference image predicted block-wise with at least a filter into blocks in at least one layer, sets a partitioning flag to indicate whether each of the partitioned blocks is subdividable into sub-blocks, sets a filter type to indicate which filter was used for interpolating each of the blocks or sub-blocks, and quadtree-encodes the partitioning flag and the filter type together with the corresponding block or sub-block to generate a quadtree-encoded bitstream. A video decoder reads the partitioning flags and the filter types from the quadtree-encoded bitstream to reconstruct the partitioning flags and the filter types for the corresponding blocks or sub-blocks, generates the blocks or sub-blocks based on the corresponding partitioning flags, and interpolates the generated blocks or sub-blocks on the basis of the corresponding filter types to reconstruct the reference image.

摘要翻译： 在视频编码和/或解码装置和/或方法中，视频编码器将至少一个滤波器分块预测的参考图像划分成至少一个层中的块，设置分区标志以指示每个分区块 可细分为子块，设置滤波器类型以指示哪个滤波器用于内插每个块或子块，并将分区标志和滤波器类型与相应的块或子块一起四叉树编码以产生 四叉树编码比特流。 视频解码器从四叉树编码比特流中读取分割标志和滤波器类型，以重建相应块或子块的分割标志和滤波器类型，基于相应的分区标志生成块或子块，以及 基于相应的滤波器类型来内插生成的块或子块以重构参考图像。

公开(公告)号：US09729872B2

公开(公告)日：2017-08-08

申请号：US13990269

申请日：2011-11-25

申请人： Jinhan Song ,  Jeongyeon Lim ,  Kibaek Kim ,  Jechang Jeong

发明人： Jinhan Song ,  Jeongyeon Lim ,  Kibaek Kim ,  Jechang Jeong

IPC分类号： H04N19/00 ,  H04N19/50 ,  H04N19/11 ,  H04N19/463

CPC分类号： H04N19/50 ,  H04N19/11 ,  H04N19/463

摘要： A video encoding apparatus encodes intra-prediction mode information of the current block by excluding information on overlapping or unnecessary intra-prediction modes from a candidate mode group and/or based on whether predicted values of intra-prediction modes of at least a preset number of subblocks are matched with actual intra-prediction modes.

公开(公告)号：US09503725B2

公开(公告)日：2016-11-22

申请号：US13883519

申请日：2011-11-04

申请人： Jinhan Song ,  Jeongyeon Lim ,  Kibaek Kim ,  Jechang Jeong

发明人： Jinhan Song ,  Jeongyeon Lim ,  Kibaek Kim ,  Jechang Jeong

IPC分类号： H04N7/50 ,  H04N7/32 ,  H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593 ,  H04N19/117

CPC分类号： H04N19/61 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

摘要： A video encoding apparatus, a video decoding apparatus and video decoding method are provided. The video decoding apparatus includes: a decoding unit receiving encoded data and reconstruct an intra prediction mode by decoding a bitstream of the encoded data; a dequantization unit dequantizing the quantized transformed residual block to reconstruct a transformed residual block; an inverse transform unit inversely transforming the transformed residual block to reconstruct a residual block; a prediction unit generating a predicted block by selectively using one of pixels of a neighboring block adjacent to a current block and a reference pixel generated by filtering the pixels of the neighboring block according to the intra prediction mode; and an addition unit adding the reconstructed residual block and the predicted block to reconstruct the current block.

公开(公告)号：US20130259128A1

公开(公告)日：2013-10-03

申请号：US13990269

申请日：2011-11-25

申请人： Jinhan Song ,  Jeongyeon Lim ,  Kibaek Kim ,  Jechang Jeong

发明人： Jinhan Song ,  Jeongyeon Lim ,  Kibaek Kim ,  Jechang Jeong

IPC分类号： H04N7/32

CPC分类号： H04N19/50 ,  H04N19/11 ,  H04N19/463

摘要： A video encoding apparatus encodes intra-prediction mode information of the current block by excluding information on overlapping or unnecessary intra-prediction modes from a candidate mode group and/or based on whether predicted values of intra-prediction modes of at least a preset number of subblocks are matched with actual intra-prediction modes.

摘要翻译： 视频编码装置通过从候选模式组排除关于重叠或不必要的帧内预测模式的信息和/或基于至少预设数量的帧内预测模式的预测值来编码当前块的帧内预测模式信息 子块与实际的帧内预测模式相匹配。

公开(公告)号：US20130301714A1

公开(公告)日：2013-11-14

申请号：US13883519

申请日：2011-11-04

申请人： Jinhan Song ,  Jeongyeon Lim ,  Kibaek Kim ,  Jechang Jeong

发明人： Jinhan Song ,  Jeongyeon Lim ,  Kibaek Kim ,  Jechang Jeong

IPC分类号： H04N7/50 ,  H04N7/32

CPC分类号： H04N19/61 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/593

摘要： A video encoding apparatus, a video decoding apparatus and video decoding method are provided. The video decoding apparatus includes: a decoding unit receiving encoded data and reconstruct an intra prediction mode by decoding a bitstream of the encoded data; a dequantization unit dequantizing the quantized transformed residual block to reconstruct a transformed residual block; an inverse transform unit inversely transforming the transformed residual block to reconstruct a residual block; a prediction unit generating a predicted block by selectively using one of pixels of a neighboring block adjacent to a current block and a reference pixel generated by filtering the pixels of the neighboring block according to the intra prediction mode; and an addition unit adding the reconstructed residual block and the predicted block to reconstruct the current block.

摘要翻译： 提供了视频编码装置，视频解码装置和视频解码方法。 视频解码装置包括：解码单元，接收编码数据，并通过对编码数据的比特流进行解码来重构帧内预测模式; 去量化单元对量化的变换后的残差块进行量化以重构变换后的残差块; 逆变换单元逆变换变换的残差块以重构残差块; 预测单元，通过选择性地使用与当前块相邻的相邻块的像素和通过根据帧内预测模式对相邻块的像素进行滤波而生成的参考像素来生成预测块; 以及加法单元，将重建的残差块和预测块相加，以重构当前块。

公开(公告)号：US20120320975A1

公开(公告)日：2012-12-20

申请号：US13513302

申请日：2010-11-25

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Jechang Jeong

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Jechang Jeong

IPC分类号： H04N7/32

CPC分类号： H04N19/11 ,  H04N19/593

摘要： The present disclosure provides a video encoding apparatus and encoding method thereof, video decoding apparatus and decoding method thereof, and directional intra-prediction method to be used therefor. The video encoding apparatus includes a main mode search unit for searching for main mode for a current block from among directional intra-prediction modes; a sub mode search unit for searching for sub modes formed by inclining indicated orientation of found main mode by main mode search unit by a predetermined offset in both clockwise and counterclockwise directions; a predicted block generator for generating predicted block of the current block from neighboring blocks of the current block based on found main mode by the main mode search unit and found sub modes by the sub mode search unit; a differentiator for calculating differential between the current block and the predicted block; and an encoder for encoding calculated differential by the differentiator.

摘要翻译： 本公开提供了一种视频编码装置及其编码方法，其视频解码装置及其解码方法以及用于其的定向帧内预测方法。 视频编码装置包括：主模式搜索单元，用于从定向帧内预测模式中搜索当前块的主模式; 子模式搜索单元，用于搜索通过主模式搜索单元将所找到的主模式的指示方位倾斜预定的偏移在顺时针和逆时针方向上形成的子模式; 预测块发生器，用于通过主模式搜索单元基于找到的主模式产生当前块的当前块的预测块，并由子模式搜索单元发现子模式; 用于计算当前块和预测块之间的差分的微分器; 以及用于通过微分器对计算出的微分进行编码的编码器。

公开(公告)号：US20120300848A1

公开(公告)日：2012-11-29

申请号：US13513091

申请日：2010-11-25

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Jechang Jeong ,  Kangjun Lee

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Jechang Jeong ,  Kangjun Lee

IPC分类号： H04N7/32

CPC分类号： H04N19/52 ,  H04N19/523

摘要： The present disclosure provides an apparatus and a method for generating an inter-prediction frame, and an apparatus and a method for interpolating a reference frame used therein. The apparatus for interpolating the reference frame includes a directivity determiner for determining directivity of a quarter pixel located at the intersection of a left diagonal line and a right diagonal line of a half-pixel unit based on surrounding pixels of the quarter pixel; and an interpolation processor for interpolating a pixel value for the quarter pixel by differently applying a linear interpolation method depending on the directivity determined by the directivity determiner.

摘要翻译： 本公开提供了一种用于生成帧间预测帧的装置和方法，以及用于内插其中使用的参考帧的装置和方法。 用于内插参考帧的装置包括：方向性确定器，用于基于四分之一像素的周围像素确定位于半像素单元的左对角线和右对角线的交点处的四分之一像素的方向性; 以及内插处理器，用于通过根据由方向性确定器确定的方向性不同地应用线性内插方法来内插四分之一像素的像素值。

公开(公告)号：US09473777B2

公开(公告)日：2016-10-18

申请号：US13513302

申请日：2010-11-25

申请人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Jechang Jeong

发明人： Sunyeon Kim ,  Jeongyeon Lim ,  Gyumin Lee ,  Jaehoon Choi ,  Jechang Jeong

IPC分类号： H04N19/11 ,  H04N19/593

CPC分类号： H04N19/11 ,  H04N19/593

摘要： The present disclosure provides a video encoding apparatus and encoding method thereof, video decoding apparatus and decoding method thereof, and directional intra-prediction method to be used therefor. The video encoding apparatus includes a main mode search unit for searching for main mode for a current block from among directional intra-prediction modes; a sub mode search unit for searching for sub modes formed by inclining indicated orientation of found main mode by main mode search unit by a predetermined offset in both clockwise and counterclockwise directions; a predicted block generator for generating predicted block of the current block from neighboring blocks of the current block based on found main mode by the main mode search unit and found sub modes by the sub mode search unit; a differentiator for calculating differential between the current block and the predicted block; and an encoder for encoding calculated differential by the differentiator.

摘要翻译： 本公开提供了一种视频编码装置及其编码方法，其视频解码装置及其解码方法以及用于其的定向帧内预测方法。 视频编码装置包括：主模式搜索单元，用于从定向帧内预测模式中搜索当前块的主模式; 子模式搜索单元，用于搜索通过主模式搜索单元将所找到的主模式的指示方位倾斜预定的偏移在顺时针和逆时针方向上形成的子模式; 预测块发生器，用于通过主模式搜索单元基于找到的主模式产生当前块的当前块的预测块，并由子模式搜索单元发现子模式; 用于计算当前块和预测块之间的差分的微分器; 以及用于通过微分器对计算出的微分进行编码的编码器。