公开(公告)号：US06396956B1

公开(公告)日：2002-05-28

申请号：US09502166

申请日：2000-02-11

申请人： Jordi Ribas-Corbera ,  Shaw-Min Lei

发明人： Jordi Ribas-Corbera ,  Shaw-Min Lei

IPC分类号： G06K946

CPC分类号： G06T9/00

摘要： Block and frame skipping decides which image regions, blocks or frames in a video frame or series of frames should be encoded. Block skipping detects in advance which of the blocks in a video frame will produce little or no bits, so that the encoder can skip the encoding process for these blocks. Block skipping uses an iterative procedure to determine the optimal energy threshold value for each image frame. All the image blocks whose pixel energy is below the optimal threshold for the frame are skipped. Frame skipping predicts a distortion or image quality value for each frame. If some frames have a predicted image quality smaller than a preset value, these frames are allocated more bits and if, as a result, too few bits are left for future frames, the latter frames are skipped. This selective frame skipping guarantees that the quality of the non-skipped frames is above the preset value.

摘要翻译： 块和帧跳过决定视频帧或一系列帧中的哪些图像区域，块或帧应被编码。 块跳过预先检测视频帧中的哪个块将产生很少或不产生位，使得编码器可以跳过这些块的编码处理。 块跳过使用迭代过程来确定每个图像帧的最佳能量阈值。 像素能量低于帧的最佳阈值的所有图像块都被跳过。 帧跳过预测每个帧的失真或图像质量值。 如果一些帧具有小于预设值的预测图像质量，则这些帧被分配更多的比特，并且如果结果为未来的帧留下太少的比特，则后一帧被跳过。 这种选择性跳帧保证非跳过帧的质量高于预设值。

公开(公告)号：US06233357B1

公开(公告)日：2001-05-15

申请号：US09110979

申请日：1998-07-07

申请人： Jin Li ,  Shaw-Min Lei

发明人： Jin Li ,  Shaw-Min Lei

IPC分类号： G06K936

CPC分类号： H04N19/649 ,  H04N19/63

摘要： An arbitrary shape wavelet transform with phase alignment (ASWP) is used to transform an arbitrary shaped object in an image. The phase of an odd tap wavelet filter is aligned so that a low pass filter is always centered at an even index, and a high pass filter is always centered at an odd index. The phase of an even tap wavelet filter is aligned so that the low pass filter and the high pass filter are both centered at index 2i+0.5, i.e., a half index past the even index. The objects for odd tap wavelet filters are each separately symmetrically extended by mirroring the objects from the opposite ends but not mirroring the end pixels. The objects for the even tap filter is symmetrically extended by mirroring the pixels from the opposite ends of the objects including mirroring the end pixels. The phase adjusted-symmetrically extended objects are then transformed.

摘要翻译： 使用具有相位对准（ASWP）的任意形状小波变换来变换图像中的任意成形对象。 对齐抽头小波滤波器的相位被对准，使得低通滤波器总是以均匀的索引为中心，并且高通滤波器总是以奇数索引为中心。 对均匀抽头小波滤波器的相位进行比对，使得低通滤波器和高通滤波器都以索引2i + 0.5为中心，即超过偶数指数的一半索引。 奇数抽头小波滤波器的对象通过从相对端镜像对象而不是镜像终端像素而分别对称地扩展。 偶数抽头滤波器的对象通过镜像来自对象的相对端的像素对称地扩展，包括镜像终端像素。 然后相位调整对称扩展的对象被变换。

公开(公告)号：US5298896A

公开(公告)日：1994-03-29

申请号：US31421

申请日：1993-03-15

申请人： Shaw-Min Lei ,  Ming-Ting Sun ,  Kou-Hu Tzou

发明人： Shaw-Min Lei ,  Ming-Ting Sun ,  Kou-Hu Tzou

IPC分类号： G06T9/00 ,  H03M7/40 ,  H03M7/30

CPC分类号： G06T9/005 ,  H03M7/4006

摘要： Method and system for high order conditional entropy coding utilizing an incremental-tree-extension technique to design a conditional tree for the coding. For complexity reduction, code table reduction and non-uniform quantization of conditioning symbols or pixels is provided. A pattern matching technique is provided for fast conditioning state extraction, and a multistage pipelined structure is provided to handle the case of a large number of conditioning pixels. Using the complexity reduction techniques and the hardware structures, it is possible to implement practical high order conditional entropy codecs using current low-cost VLSI (Very Large Scale Integration) technology.

摘要翻译： 利用增量树扩展技术设计用于编码的条件树的高阶条件熵编码方法和系统。 为了复杂度降低，提供了代码表缩减和调节符号或像素的不均匀量化。 提供了用于快速调节状态提取的模式匹配技术，并且提供了多级流水线结构来处理大量调节像素的情况。 使用复杂度降低技术和硬件结构，可以使用当前的低成本VLSI（超大规模集成）技术实现实用的高阶条件熵编解码器。

公开(公告)号：US09596483B2

公开(公告)日：2017-03-14

申请号：US13198697

申请日：2011-08-04

申请人： Mei Guo ,  Xun Guo ,  Shaw-Min Lei

发明人： Mei Guo ,  Xun Guo ,  Shaw-Min Lei

IPC分类号： H04N19/593 ,  H04N19/159 ,  H04N19/196 ,  H04N19/463 ,  H04N19/11

CPC分类号： H04N19/593 ,  H04N19/11 ,  H04N19/159 ,  H04N19/196 ,  H04N19/463

摘要： A method and apparatus for improved intra prediction mode coding are disclosed. Intra prediction exploits the spatial correlation within a picture or within a picture region. In High-Efficiency Video Coding (HEVC), a coding scheme for the intra luma prediction mode is considered, where the intra prediction mode of a current block is compared with the minimum of two intra luma prediction modes corresponding to two neighboring blocks. If the intra prediction mode of the current block is the same as the minimum of the two neighboring intra luma prediction modes, a single bit is transmitted to indicate the case. Otherwise, information for the current intra prediction mode is transmitted in fixed-length codeword. The present invention provides multiple intra prediction mode candidates based on neighboring intra prediction modes so that there is a better chance for predictor hit. Accordingly, improved coding efficiency is achieved.

摘要翻译： 公开了一种用于改进帧内预测模式编码的方法和装置。 帧内预测利用图片内或图片区域内的空间相关性。 在高效率视频编码（HEVC）中，考虑了用于帧内预测模式的编码方案，其中将当前块的帧内预测模式与对应于两个相邻块的两个内部亮度预测模式的最小值进行比较。 如果当前块的帧内预测模式与两个相邻帧内亮度预测模式的最小值相同，则发送单个位以指示该情况。 否则，以固定长度的码字发送当前帧内预测模式的信息。 本发明提供了基于相邻帧内预测模式的多个帧内预测模式候选，使得预测器命中的机会更好。 因此，实现了改进的编码效率。

公开(公告)号：US09185430B2

公开(公告)日：2015-11-10

申请号：US12981430

申请日：2010-12-29

申请人： Jicheng An ,  Yongying Gao ,  Shaw-Min Lei

发明人： Jicheng An ,  Yongying Gao ,  Shaw-Min Lei

IPC分类号： H04N19/86 ,  H04N19/159 ,  H04N19/176 ,  H04N19/102 ,  H04N19/117 ,  H04N19/186

CPC分类号： H04N19/86 ,  H04N19/102 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186

摘要： An exemplary deblocking filtering method includes checking if at least one of two adjacent blocks is an intra-coded block and accordingly generating a checking result; and applying a deblocking filtering scheme with a clipping range to the two adjacent blocks by a deblocking filtering circuit as long as the checking result indicates that at least one of the two adjacent blocks is the intra-coded block.

摘要翻译： 示例性的去块滤波方法包括：检查两个相邻块中的至少一个是帧内编码块，从而生成检查结果; 并且只要检查结果指示两个相邻块中的至少一个是帧内编码块，则通过去块滤波电路将具有削波范围的去块滤波方案应用于两个相邻块。

公开(公告)号：US09094691B2

公开(公告)日：2015-07-28

申请号：US13017041

申请日：2011-01-30

申请人： Kai Zhang ,  Shaw-Min Lei

发明人： Kai Zhang ,  Shaw-Min Lei

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  G06K9/36 ,  G06K9/46 ,  H03M7/00 ,  H04N19/93 ,  H04N19/196 ,  H04N19/463

CPC分类号： H04N19/93 ,  H04N19/196 ,  H04N19/463

摘要： A method of converting first data into second data includes: determining a target symbol corresponding to the first data by utilizing a determining unit; and generating the second data corresponding to the determined target symbol. One of the first data and the second data is a syntax element, and the other of the first data and the second data is an entropy-coded result of the syntax element. The target symbol corresponding to the first data is determined adaptively according to occurrence probability of candidate syntax element values of the syntax element.

摘要翻译： 将第一数据转换为第二数据的方法包括：利用确定单元确定与第一数据相对应的目标符号; 以及生成对应于所确定的目标符号的第二数据。 第一数据和第二数据之一是语法元素，第一数据和第二数据中的另一个是语法元素的熵编码结果。 根据语法元素的候选语法元素值的出现概率，自适应地确定对应于第一数据的目标符号。

公开(公告)号：US08971400B2

公开(公告)日：2015-03-03

申请号：US13048893

申请日：2011-03-16

申请人： Jian-Liang Lin ,  Yu-Pao Tsai ,  Shaw-Min Lei

发明人： Jian-Liang Lin ,  Yu-Pao Tsai ,  Shaw-Min Lei

IPC分类号： H04N7/12 ,  H04N19/51 ,  H04N19/583 ,  H04N19/70 ,  H04N19/56 ,  H04N19/547 ,  H04N19/54 ,  H04N11/02

CPC分类号： H04N19/00715 ,  H04N19/54 ,  H04N19/547 ,  H04N19/56 ,  H04N19/573 ,  H04N19/58 ,  H04N19/70

摘要： A method for performing hybrid multihypothesis prediction during video coding of a coding unit includes: processing a plurality of sub-coding units in the coding unit; and performing motion vector derivation of a portion of the sub-coding units. More particularly, the step of performing motion vector derivation of the portion of the sub-coding units further includes: deriving a plurality of motion vectors for multihypothesis motion-compensated prediction of a specific sub-coding unit of the portion of the sub-coding units from at least one other sub-coding/coding unit or by performing motion estimation. The method further includes performing multihypothesis motion-compensated prediction on the specific sub-coding unit according to the plurality of motion vectors, and more particularly, includes utilizing a linear combination of a plurality of pixel values derived from the plurality of motion vectors as a predicted pixel value of the specific sub-coding unit. An associated apparatus is also provided.

摘要翻译： 一种用于在编码单元的视频编码期间执行混合多重假设预测的方法包括：在编码单元中处理多个子编码单元; 以及执行子编码单元的一部分的运动矢量导出。 更具体地，执行子编码单元的部分的运动矢量导出的步骤还包括：导出用于子编码单元的一部分的特定子编码单元的多假设运动补偿预测的多个运动矢量 从至少一个其他子编码/编码单元或通过执行运动估计。 该方法还包括根据多个运动矢量对特定子编码单元执行多重假设运动补偿预测，更具体地，包括利用从多个运动矢量导出的多个像素值的线性组合作为预测 特定子编码单元的像素值。 还提供了一种相关联的装置。

公开(公告)号：US08879620B2

公开(公告)日：2014-11-04

申请号：US13080668

申请日：2011-04-06

申请人： Jian-Liang Lin ,  Yu-Pao Tsai ,  Shaw-Min Lei

发明人： Jian-Liang Lin ,  Yu-Pao Tsai ,  Shaw-Min Lei

IPC分类号： H04N11/02 ,  H04N19/56 ,  H04N19/51 ,  G06K9/36

CPC分类号： H04N19/139 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56

摘要： A method for performing localized multihypothesis prediction during video coding of a coding unit includes: dividing the coding unit into a plurality of sub-coding units; and performing motion vector prediction of each of the sub-coding units. More particularly, the step of performing motion vector prediction of each of the sub-coding units further includes: obtaining a plurality of motion vectors for multihypothesis motion compensation of a specific sub-coding unit of the sub-coding units from a plurality of other sub-coding/coding units. The method further includes performing multihypothesis motion compensation on the specific sub-coding unit according to the plurality of motion vectors, and more particularly, includes utilizing a linear combination of a plurality of pixel values of the plurality of other sub-coding/coding units as a predicted pixel value of the specific sub-coding unit. An associated apparatus is also provided.

摘要翻译： 一种用于在编码单元的视频编码期间执行局部多重假设预测的方法包括：将编码单元划分为多个子编码单元; 以及对每个子编码单元进行运动矢量预测。 更具体地，执行每个子编码单元的运动矢量预测的步骤还包括：从多个其他子级获得多个子编码单元的特定子编码单元的多假设运动补偿的运动矢量 编码/编码单元。 该方法还包括根据多个运动矢量对特定子编码单元执行多重假设运动补偿，更具体地，包括利用多个其他子编码/编码单元的多个像素值的线性组合作为 特定子编码单元的预测像素值。 还提供了一种相关联的装置。

公开(公告)号：US08755636B2

公开(公告)日：2014-06-17

申请号：US13476208

申请日：2012-05-21

申请人： Xinfeng Zhang ,  Si-Wei Ma ,  Xun Guo ,  Shaw-Min Lei

发明人： Xinfeng Zhang ,  Si-Wei Ma ,  Xun Guo ,  Shaw-Min Lei

IPC分类号： G06K9/32

CPC分类号： G06T3/4053

摘要： A method and apparatus for reconstructing a high-resolution image based on multiple low-resolution images are disclosed. The method and apparatus incorporating an embodiment according to the present invention reconstructs the high-resolution image based on a kernel regression method using a modified kernel function. The kernel function takes into consideration of registration reliability of regression residue and rotational motion within the multiple low-resolution images. The registration reliability adjusts weighting on the regression residues according to local gradient estimated between neighboring values. Furthermore, multi-scale regression residue is used to alleviate impact of noise.

摘要翻译： 公开了一种基于多个低分辨率图像重建高分辨率图像的方法和装置。 结合根据本发明的实施例的方法和装置基于使用修改的内核功能的内核回归方法来重构高分辨率图像。 核函数考虑了多个低分辨率图像内的回归残差和旋转运动的配准可靠性。 注册可靠性根据相邻值之间估计的局部梯度来调整回归残差的权重。 此外，多尺度回归残差用于减轻噪声的影响。

公开(公告)号：US08737613B2

公开(公告)日：2014-05-27

申请号：US12274361

申请日：2008-11-20

申请人： Kun-Bin Lee ,  Shaw-Min Lei

发明人： Kun-Bin Lee ,  Shaw-Min Lei

IPC分类号： H04N7/167

CPC分类号： H04N19/16 ,  H04N19/129 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176

摘要： One scanning method of transform-based digital data processing includes: when processing data blocks, recording characteristics information for different block categories individually; conditionally adjusting scan orders of data processing of the block categories according to the characteristics information; and performing the data processing upon a current data block according to a scan order corresponding to a block category to which the current data block belongs. Another scanning method of transform-based digital data processing includes: recording characteristics information when processing data blocks; conditionally adjusting a scan order according to the characteristics information; keeping at least one position in the scan order fixed regardless of changes made to the scan order; and performing a data processing upon a current data block according to the scan order.

摘要翻译： 基于变换的数字数据处理的一种扫描方法包括：当处理数据块时，分别记录不同块类别的特征信息; 根据特征信息有条件地调整块类别的数据处理扫描顺序; 并且根据与当前数据块所属的块类别对应的扫描顺序对当前数据块执行数据处理。 基于变换的数字数据处理的另一种扫描方法包括：在处理数据块时记录特征信息; 根据特征信息有条件地调整扫描顺序; 保持扫描顺序中至少一个位置不受扫描顺序的影响; 并根据扫描顺序对当前数据块进行数据处理。