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31. 发明申请

US20140003495A1 Method and Apparatus of Scalable Video Coding 有权
标题翻译：可扩展视频编码的方法和装置
公开(公告)号：US20140003495A1
公开(公告)日：2014-01-02
申请号：US14005555
申请日：2012-05-31
申请人： Tzu-Der Chuang , Ching-Yeh Chen , Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei
发明人： Tzu-Der Chuang , Ching-Yeh Chen , Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/51 , H04N19/119 , H04N19/30 , H04N19/33 , H04N19/463 , H04N19/517 , H04N19/52
摘要： A method and apparatus for scalable video coding are disclosed, wherein the video data is configured into a Base Layer (BL) and an Enhancement Layer (EL) and wherein the EL has higher spatial resolution or better video quality than the BL. According to embodiments of the present invention, information from the base layer is exploited for coding the enhancement layer. The information coding for the enhancement layer includes CU structure, motion vector predictor (MVP) information, MVP/merge candidates, intra prediction mode, residual quadtree information, texture information, residual information, context adaptive entropy coding, Adaptive Lop Filter (ALF), Sample Adaptive Offset (SAO), and deblocking filter.
摘要翻译：公开了一种用于可缩放视频编码的方法和装置，其中将视频数据配置为基本层（BL）和增强层（EL），并且其中EL具有比BL更高的空间分辨率或更好的视频质量。根据本发明的实施例，利用来自基础层的信息来对增强层进行编码。增强层的信息编码包括CU结构，运动矢量预测器（MVP）信息，MVP /合并候选，帧内预测模式，残余四叉树信息，纹理信息，残差信息，上下文自适应熵编码，自适应Lop滤波器（ALF）采样自适应偏移（SAO）和去块滤波器。

32. 发明申请

US20130322523A1 METHOD AND APPARATUS FOR REDUCTION OF IN-LOOP FILTER BUFFER 审中-公开
标题翻译：减少内循环滤波器缓冲器的方法和装置
公开(公告)号：US20130322523A1
公开(公告)日：2013-12-05
申请号：US13985564
申请日：2012-04-19
申请人： Yu-Wen Huang , Chia-Yang Tsai , Ching-Yeh Chen , Chih-Ming Fu , Shaw-Min Lei
发明人： Yu-Wen Huang , Chia-Yang Tsai , Ching-Yeh Chen , Chih-Ming Fu , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/46 , H04N19/117 , H04N19/132 , H04N19/134 , H04N19/182 , H04N19/423 , H04N19/80 , H04N19/82 , H04N19/86
摘要： A method and apparatus for in-loop processing of reconstructed video are disclosed. The method and apparatus configure the in-loop processing so that the processing requires no pixel or reduced pixels from other side of a virtual boundary. When the in-loop processing of the to-be-processed pixel requires a pixel from the other side of the virtual boundary, the pixel from the other side of the virtual boundary is replaced by a replacement pixel. The in-loop processing can also be configured to skip the pixel when the processing requires a pixel from other side of the virtual boundary. The in-loop processing can also be configured to change ALF filter shape or filter size when the in-loop processing requires a pixel from other side of the virtual boundary. A filtered output can be combined linearly or nonlinearly with the to-be-processed pixel to generate a final filter output.
摘要翻译：公开了重建视频的环路处理方法和装置。该方法和装置配置环路内处理，使得处理不需要来自虚拟边界的另一侧的像素或缩小像素。当待处理像素的循环处理需要来自虚拟边界的另一侧的像素时，来自虚拟边界的另一侧的像素被替换像素替代。当处理需要来自虚拟边界的另一侧的像素时，也可以配置循环处理以跳过像素。当内循环处理需要来自虚拟边界的另一侧的像素时，也可以将循环处理配置为改变ALF滤波器形状或滤波器大小。经滤波的输出可以与要处理的像素线性或非线性组合以产生最终的滤波器输出。

33. 发明申请

US20110116544A1 METHODS OF INTRA PREDICTION, VIDEO ENCODER, AND VIDEO DECODER THEREOF 审中-公开
标题翻译：内部预测方法，视频编码器及其视频解码器
公开(公告)号：US20110116544A1
公开(公告)日：2011-05-19
申请号：US12811701
申请日：2010-06-09
申请人： Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/32 , H04N7/50
CPC分类号： H04N19/86 , H04N19/11 , H04N19/117 , H04N19/147 , H04N19/176 , H04N19/61 , H04N19/82
摘要： A method of intra prediction includes the steps of: receiving a video input having a plurality of blocks; encoding and reconstructing the plurality of blocks one by one; after encoding and reconstructing a designated block of the plurality of blocks to generate a designated reconstructed block, performing a deblocking operation upon the designated reconstructed block so as to generate a reference block with at least one sample being deblocked; and performing an intra prediction operation upon a current block by using samples of the reference block generated by the deblocking operation.
摘要翻译：帧内预测方法包括以下步骤：接收具有多个块的视频输入; 一个接一个地编码和重建多个块; 在对所述多个块的指定块进行编码和重建以生成指定的重构块之后，对所述指定的重构块执行去块操作，以便生成具有至少一个样本被去块的参考块; 以及通过使用通过解块操作生成的参考块的样本，对当前块执行帧内预测操作。

34. 发明授权

US09872015B2 Method and apparatus for improved in-loop filtering 有权
公开(公告)号：US09872015B2
公开(公告)日：2018-01-16
申请号：US13992472
申请日：2012-04-20
申请人： Chih-Ming Fu , Ching-Yeh Chen , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Ching-Yeh Chen , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04N19/117 , H04N19/70 , H04N19/177 , H04N19/463 , H04N19/82
CPC分类号： H04N19/169 , H04N19/117 , H04N19/177 , H04N19/463 , H04N19/70 , H04N19/82
摘要： Video decoding and encoding with in-loop processing of reconstructed video are disclosed. At the decoder side, a flag is received from the video bitstream and according to the flag, information associated with in-loop filter parameters is received either from a data payload in the video bitstream to be shared by two or more coding blocks or individual coding block data in the video bitstream. At the encoder side, information associated with the in-loop filter parameters is incorporated either in a data payload in a video bitstream to be shared by two or more coding blocks or interleaved with individual coding block data in the video bitstream according to a flag. The data payload in the video bitstream is in a picture level, Adaptation Parameter Set (APS), or a slice header.

35. 发明授权

US09813738B2 Method and apparatus of adaptive loop filtering 有权
公开(公告)号：US09813738B2
公开(公告)日：2017-11-07
申请号：US13216242
申请日：2011-08-24
申请人： Chia-Yang Tsai , Chih-Ming Fu , Ching-Yeh Chen , Yu-Wen Huang , Shaw-Min Lei
发明人： Chia-Yang Tsai , Chih-Ming Fu , Ching-Yeh Chen , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N19/82 , H04N19/42 , H04N19/80 , H04N19/147 , H04N19/176 , H04N19/17 , H04N19/182 , H04N19/119 , H04N19/117
CPC分类号： H04N19/82 , H04N19/117 , H04N19/119 , H04N19/147 , H04N19/17 , H04N19/176 , H04N19/182 , H04N19/439 , H04N19/80
摘要： A method and apparatus for processing in-loop reconstructed video using an in-loop filter is disclosed. In the recent HEVC development, adaptive loop filtering (ALF) is being adopted to process in-loop reconstruction video data, where ALF can be selectively turned ON or OFF for each block in a frame or a slice. An advanced ALF is disclosed later that allows a choice of multiple filter sets that can be applied to the reconstructed video data adaptively. In the present disclosure, pixels of the in-loop reconstructed video data are divided into a plurality of to-be-filtered regions, and an in-loop filter from a filter set is determined for each to-be-filtered region based on a rate-distortion optimization procedure. According to one embodiment of the present invention, computation of cost function associated with the rate-distortion optimization procedure is related to correlation values associated with original video data and the in-loop reconstructed video data. Furthermore, the correlation values can be shared by the multiple candidate filters during the rate-distortion optimization procedure for said each to-be-filtered region. In another embodiment, the correlation values can be shared by multiple candidate to-be-filtered regions of an area of the in-loop reconstructed video data during the rate-distortion optimization procedure for the area of the in-loop reconstructed video data.

36. 发明申请

US20130215959A1 Method of Filter-Unit Based In-Loop Filtering 有权
标题翻译：基于滤波单元的环路滤波方法
公开(公告)号：US20130215959A1
公开(公告)日：2013-08-22
申请号：US13825061
申请日：2011-12-31
申请人： Ching-Yeh Chen , Chih-Ming Fu , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
发明人： Ching-Yeh Chen , Chih-Ming Fu , Chia-Yang Tsai , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/103 , H04N19/117 , H04N19/46 , H04N19/70 , H04N19/82
摘要： Methods for filter-unit based in-loop filtering in a video decoder and encoder are disclosed. In one embodiment, filter parameters are selected from a filter parameter set for each filter based on a filter index. In another embodiment, the picture is partitioned into filter units according to filter unit size, which can be selected between a default size and other size. When other size is selected, the filter unit size may be conveyed using direct size information or ratio information. In another embodiment, a merge flag and a merge index are used to convey filter unit merge information. A method for filter-unit based in-loop filtering in a video encoder for color video is disclosed. In one embodiment, the method incorporates filter syntax in the video bitstream by interleaving the color-component filter syntax for the FUs.
摘要翻译：公开了一种视频解码器和编码器中基于滤波器单元的环路滤波方法。在一个实施例中，基于滤波器索引从针对每个滤波器的滤波器参数集中选择滤波器参数。在另一个实施例中，根据滤波器单元尺寸将图像划分为滤波器单元，其可以在默认尺寸和其它尺寸之间进行选择。当选择其他尺寸时，可以使用直接尺寸信息或比率信息来传送过滤器单元尺寸。在另一个实施例中，使用合并标志和合并索引来传送过滤器单元合并信息。公开了一种用于彩色视频的视频编码器中的基于滤波器单元的环路滤波的方法。在一个实施例中，该方法通过交织FU的颜色分量滤波器语法来在视频比特流中包含滤波器语法。

37. 发明申请

US20120114034A1 Method and Apparatus of Delta Quantization Parameter Processing for High Efficiency Video Coding 审中-公开
标题翻译：用于高效率视频编码的Delta量化参数处理方法与装置
公开(公告)号：US20120114034A1
公开(公告)日：2012-05-10
申请号：US13018431
申请日：2011-02-01
申请人： Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Chih-Wei Hsu , Yu-Lin Chang , Tzu-Der Chuang , Shaw-Min Lei
发明人： Yu-Wen Huang , Ching-Yeh Chen , Chih-Ming Fu , Chih-Wei Hsu , Yu-Lin Chang , Tzu-Der Chuang , Shaw-Min Lei
IPC分类号： H04N7/12
CPC分类号： H04N19/174 , H04N19/103 , H04N19/119 , H04N19/126 , H04N19/13 , H04N19/146 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/463 , H04N19/70 , H04N19/96
摘要： In the current high efficiency video coding development, each LCU has its own quantization parameter (QP) and the difference between a current QP and a reference QP is transmitted instead of the QP value itself. Since the LCU is much larger than the macroblock of AVC/H.264, using one delta QP per LCU may cause rate control unable to adapt to the bitrate quickly enough. Consequently there is a need to adopt delta QP in units smaller than LCU to provide more granular rate control. Furthermore, it is desirable to develop a system that is capable of facilitating more flexible delta QP. Accordingly, adaptive quantization parameter processing is disclosed where a QP minimum CU size for incorporating or deriving a delta QP is indicated selectively in the slice level or in the sequence/picture level. In one variation, the delta QP is incorporated or derived only if nonzero quantized transform coefficients exist in a leaf CU that is larger than the QP minimum CU size. In another variation, quantization parameter information is only incorporated or derived when a leaf CU has any nonzero quantized transform coefficient. In yet another variation, a flag is used to indicate whether one delta QP per LCU is transmitted if the LCU has any nonzero quantized transform coefficient or one delta QP per leaf CU is transmitted if the leaf CU has any nonzero quantized transform coefficient.
摘要翻译：在当前的高效率视频编码开发中，每个LCU具有其自己的量化参数（QP），并且发送当前QP与参考QP之间的差异而不是QP值本身。由于LCU比AVC / H.264的宏块大得多，因此使用每个LCU的一个delta QP可能导致速率控制不能足够快地适应比特率。因此，需要采用小于LCU的单位的delta QP来提供更细粒度的速率控制。此外，期望开发能够促进更灵活的delta QP的系统。因此，公开了自适应量化参数处理，其中用于合并或导出增量QP的QP最小CU尺寸在片级或序列/画面级别中有选择地表示。在一个变型中，只有当非零量化变换系数存在于大于QP最小CU尺寸的叶CU中时，才加入或推导增量QP。在另一个变型中，当叶CU具有任何非零量化变换系数时，仅结合或导出量化参数信息。在又一个变型中，如果LCU具有任何非零量化变换系数，或者如果叶CU具有任何非零量化变换系数，则发送每个叶CU，则发送每个LCU一个ΔQP是否被发送的标志。

38. 发明申请

US20110274158A1 Method and Apparatus of Adaptive Loop Filtering 有权
标题翻译：自适应环路滤波的方法与装置
公开(公告)号：US20110274158A1
公开(公告)日：2011-11-10
申请号：US13093068
申请日：2011-04-25
申请人： Chih-Ming Fu , Ching-Yeh Chen , Yu-Wen Huang , Chia-Yang Tsai , Shaw-Min Lei
发明人： Chih-Ming Fu , Ching-Yeh Chen , Yu-Wen Huang , Chia-Yang Tsai , Shaw-Min Lei
IPC分类号： H04N11/02
CPC分类号： H04N19/117 , H04N19/10 , H04N19/115 , H04N19/129 , H04N19/134 , H04N19/137 , H04N19/14 , H04N19/154 , H04N19/157 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/186 , H04N19/196 , H04N19/439 , H04N19/463 , H04N19/82 , H04N19/86 , H04N19/96
摘要： In a block-based motion compensated system, coding noises may arise due to lossy operations such as quantization. Deblocking is often used to alleviate visibility of coding artifacts by applying filtering across block boundaries adaptively. In the recent HEVC development, adaptive loop filtering (ALF) is being adopted to process deblocked reconstruction frames. Adaptive loop filtering is applied to reconstructed video data across multiple frames to reduce visibility of coding artifacts in the temporal domain. In a HEVC system, conventional ALF can be selectively turned ON or OFF for each block in a frame or a slice. The advanced ALF disclosed here allows a choice of multiple filter sets that can be applied to the reconstructed video data adaptively. Furthermore, the advanced ALF adopts a new unit for the filtering process to apply so that more flexible and/or localized processing can be provided. Furthermore, the advanced ALF allows a decoder to derive respective information for applying the filtering process without side information.
摘要翻译：在基于块的运动补偿系统中，由于诸如量化的有损操作，可能产生编码噪声。解块通常用于通过自适应地跨越块边界应用过滤来减轻编码伪像的可视性。在最近的HEVC开发中，正在采用自适应环路滤波（ALF）来处理解块重建帧。自适应环路滤波被应用于跨多帧的重建视频数据，以减少时域中编码伪像的可见性。在HEVC系统中，对于帧或片中的每个块，可以选择性地将常规ALF打开或关闭。这里公开的高级ALF允许选择可以自适应地应用于重建的视频数据的多个滤波器组。此外，先进的ALF采用新的过滤单元进行应用，从而可以提供更灵活和/或本地化的处理。此外，高级ALF允许解码器导出用于应用无侧信息的过滤处理的相应信息。

39. 发明申请

US20110116546A1 SINGLE PASS ADAPTIVE INTERPOLATION FILTER 审中-公开
标题翻译：单通道自适应插值滤波器
公开(公告)号：US20110116546A1
公开(公告)日：2011-05-19
申请号：US12865125
申请日：2010-06-23
申请人： Xun Guo , Kai Zhang , Yu-Wen Huang , Chih-Ming Fu , Shaw-Min Lei
发明人： Xun Guo , Kai Zhang , Yu-Wen Huang , Chih-Ming Fu , Shaw-Min Lei
IPC分类号： H04N7/32
CPC分类号： H04N19/523 , H04N19/117 , H04N19/176 , H04N19/80
摘要： A method for performing single-pass adaptive interpolation filtering in order to code a bitstream includes: receiving the video frames; selecting an interpolation filter from a competitive filter set; performing motion prediction on a current frame of the video frame utilizing the interpolation filter; encoding the current frame into the bitstream; and updating the competitive filter set.
摘要翻译：一种用于执行单遍自适应内插滤波以便对比特流进行编码的方法包括：接收视频帧; 从竞争性滤波器组中选择插值滤波器; 使用内插滤波器对视频帧的当前帧执行运动预测; 将当前帧编码到比特流中; 并更新竞争性过滤器集合。

40. 发明授权

US09860528B2 Method and apparatus of scalable video coding 有权
公开(公告)号：US09860528B2
公开(公告)日：2018-01-02
申请号：US14005555
申请日：2012-05-31
申请人： Tzu-Der Chuang , Ching-Yeh Chen , Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei
发明人： Tzu-Der Chuang , Ching-Yeh Chen , Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/12 , H04N19/107 , H04N19/52 , H04N19/119 , H04N19/463 , H04N19/33 , H04N19/51 , H04N19/30 , H04N19/517
CPC分类号： H04N19/51 , H04N19/119 , H04N19/30 , H04N19/33 , H04N19/463 , H04N19/517 , H04N19/52
摘要： A method and apparatus for scalable video coding are disclosed, wherein the video data is configured into a Base Layer (BL) and an Enhancement Layer (EL) and wherein the EL has higher spatial resolution or better video quality than the BL. According to embodiments of the present invention, information from the base layer is exploited for coding the enhancement layer. The information coding for the enhancement layer includes CU structure, motion vector predictor (MVP) information, MVP/merge candidates, intra prediction mode, residual quadtree information, texture information, residual information, context adaptive entropy coding, Adaptive Lop Filter (ALF), Sample Adaptive Offset (SAO), and deblocking filter.

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