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1. 发明授权

US09762925B2 Adaptive interpolation filter for video coding 有权
公开(公告)号：US09762925B2
公开(公告)日：2017-09-12
申请号：US12405250
申请日：2009-03-17
申请人： Chih-Ming Fu , Xun Guo , Kai Zhang , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Xun Guo , Kai Zhang , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/12 , H04N11/00 , H04N19/523 , H04N19/147 , H04N19/46 , H04N19/117 , H04N19/19 , H04N19/82 , H04N19/436 , H04N19/176 , H04N19/142 , H04N19/433 , H04N19/86
CPC分类号： H04N19/523 , H04N19/117 , H04N19/142 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/433 , H04N19/436 , H04N19/46 , H04N19/82 , H04N19/86
摘要： A video encoder that utilizes adaptive interpolation filtering for coding video data includes a prediction unit, a reconstruction unit, a reference picture buffer, a filter parameter estimator for estimating filter parameters according to the original video data and the predicted samples, and an adaptive interpolation filter for utilizing the stored filter parameters to perform filtering on the reconstructed video data.

2. 发明申请

US20100074329A1 ADAPTIVE INTERPOLATION FILTER FOR VIDEO CODING 有权
标题翻译：用于视频编码的自适应插值滤波器
公开(公告)号：US20100074329A1
公开(公告)日：2010-03-25
申请号：US12405250
申请日：2009-03-17
申请人： Chih-Ming Fu , Xun Guo , Kai Zhang , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Xun Guo , Kai Zhang , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/12
CPC分类号： H04N19/523 , H04N19/117 , H04N19/142 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/433 , H04N19/436 , H04N19/46 , H04N19/82 , H04N19/86
摘要： A video encoder that utilizes adaptive interpolation filtering for coding video data includes a prediction unit, a reconstruction unit, a reference picture buffer, a filter parameter estimator for estimating filter parameters according to the original video data and the predicted samples, and an adaptive interpolation filter for utilizing the stored filter parameters to perform filtering on the reconstructed video data.
摘要翻译：利用针对视频数据进行编码的自适应插值滤波的视频编码器包括预测单元，重建单元，参考图像缓冲器，用于根据原始视频数据和预测样本估计滤波器参数的滤波器参数估计器，以及自适应插值滤波器用于利用所存储的滤波器参数对重建的视频数据执行滤波。

3. 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。

4. 发明授权

US08437394B2 Adaptive filter 有权
标题翻译：自适应滤波器
公开(公告)号：US08437394B2
公开(公告)日：2013-05-07
申请号：US12405251
申请日：2009-03-17
申请人： Chih-Ming Fu , Xun Guo , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Xun Guo , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/12 , H04N7/26 , H04N7/36 , H04N11/02
CPC分类号： H04N19/523 , H04N19/117 , H04N19/142 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/433 , H04N19/436 , H04N19/46 , H04N19/82 , H04N19/86
摘要： A video encoder includes a prediction unit for performing prediction techniques according to original video data and reconstructed video data to generate prediction samples, a reconstruction unit for reconstructing the prediction samples to form the reconstructed video data, and a reference picture buffer for storing the reconstructed video data as reference video data. The video encoder also includes a filter parameter estimator for estimating filter parameters according to the original video data of a current picture and the reconstructed video data of the current picture, and an adaptive loop filter for filtering the reconstructed video data of the current picture according to stored filter parameters of a prior picture in coding order. The filter parameter estimator and adaptive loop filter can operate in parallel.
摘要翻译：视频编码器包括：预测单元，用于执行根据原始视频数据的预测技术和重建的视频数据以产生预测采样;重构单元，用于重建预测采样以形成重构的视频数据;以及参考图像缓冲器，用于存储重建的视频数据作为参考视频数据。视频编码器还包括滤波器参数估计器，用于根据当前图像的原始视频数据和当前图像的重建视频数据估计滤波器参数，以及自适应环路滤波器，用于根据当前图像的重构视频数据进行滤波以编码顺序存储先验图像的滤波器参数。滤波器参数估计器和自适应环路滤波器可以并联运行。

5. 发明申请

US20100074330A1 ADAPTIVE FILTER 有权
标题翻译：自适应滤光片
公开(公告)号：US20100074330A1
公开(公告)日：2010-03-25
申请号：US12405251
申请日：2009-03-17
申请人： Chih-Ming Fu , Xun Guo , Yu-Wen Huang , Shaw-Min Lei
发明人： Chih-Ming Fu , Xun Guo , Yu-Wen Huang , Shaw-Min Lei
IPC分类号： H04N7/26
CPC分类号： H04N19/523 , H04N19/117 , H04N19/142 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/433 , H04N19/436 , H04N19/46 , H04N19/82 , H04N19/86
摘要： A video encoder includes a prediction unit for performing prediction techniques according to original video data and reconstructed video data to generate prediction samples, a reconstruction unit for reconstructing the prediction samples to form the reconstructed video data, and a reference picture buffer for storing the reconstructed video data as reference video data. The video encoder also includes a filter parameter estimator for estimating filter parameters according to the original video data of a current picture and the reconstructed video data of the current picture, and an adaptive loop filter for filtering the reconstructed video data of the current picture according to stored filter parameters of a prior picture in coding order. The filter parameter estimator and adaptive loop filter can operate in parallel.
摘要翻译：视频编码器包括：预测单元，用于执行根据原始视频数据的预测技术和重建的视频数据以产生预测采样;重构单元，用于重建预测采样以形成重构的视频数据;以及参考图像缓冲器，用于存储重建的视频数据作为参考视频数据。视频编码器还包括滤波器参数估计器，用于根据当前图像的原始视频数据和当前图像的重建视频数据估计滤波器参数，以及自适应环路滤波器，用于根据当前图像的重构视频数据进行滤波以编码顺序存储先验图像的滤波器参数。滤波器参数估计器和自适应环路滤波器可以并联运行。

6. 发明授权

US08548041B2 Adaptive filter 有权
标题翻译：自适应滤波器
公开(公告)号：US08548041B2
公开(公告)日：2013-10-01
申请号：US12405216
申请日：2009-03-16
申请人： Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei , Xun Guo
发明人： Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei , Xun Guo
IPC分类号： H04N7/12 , H04N7/32 , H04N11/02
CPC分类号： H04N19/523 , H04N19/117 , H04N19/142 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/433 , H04N19/436 , H04N19/46 , H04N19/82 , H04N19/86
摘要： A video encoder that utilizes adaptive loop filtering for coding video data includes: a prediction unit, for performing prediction techniques according to original video data and reconstructed video data to generate predicted samples; a reconstruction unit, for reconstructing the predicted samples to form the reconstructed video data; a reference picture buffer, for storing the reconstructed video data; a filter parameter estimator, for estimating filter parameters according to the original video data and the reconstructed video data; and an adaptive filter, for utilizing the stored filter parameters to perform filtering on the reconstructed video data.
摘要翻译：利用自适应环路滤波对视频数据进行编码的视频编码器包括：预测单元，用于根据原始视频数据和重建的视频数据执行预测技术以产生预测样本; 重建单元，用于重构所述预测样本以形成重建的视频数据; 用于存储重构的视频数据的参考图像缓冲器; 滤波器参数估计器，用于根据原始视频数据和重建的视频数据估计滤波器参数; 以及自适应滤波器，用于利用所存储的滤波器参数对重构的视频数据执行滤波。

7. 发明申请

US20100074323A1 ADAPTIVE FILTER 有权
标题翻译：自适应滤光片
公开(公告)号：US20100074323A1
公开(公告)日：2010-03-25
申请号：US12405216
申请日：2009-03-16
申请人： Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei , Xun Guo
发明人： Chih-Ming Fu , Yu-Wen Huang , Shaw-Min Lei , Xun Guo
IPC分类号： H04N7/12
CPC分类号： H04N19/523 , H04N19/117 , H04N19/142 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/433 , H04N19/436 , H04N19/46 , H04N19/82 , H04N19/86
摘要： A video encoder that utilizes adaptive loop filtering for coding video data includes: a prediction unit, for performing prediction techniques according to original video data and reconstructed video data to generate predicted samples; a reconstruction unit, for reconstructing the predicted samples to form the reconstructed video data; a reference picture buffer, for storing the reconstructed video data; a filter parameter estimator, for estimating filter parameters according to the original video data and the reconstructed video data; and an adaptive filter, for utilizing the stored filter parameters to perform filtering on the reconstructed video data.
摘要翻译：利用自适应环路滤波对视频数据进行编码的视频编码器包括：预测单元，用于根据原始视频数据和重建的视频数据执行预测技术以产生预测样本; 重建单元，用于重构所述预测样本以形成重建的视频数据; 用于存储重构的视频数据的参考图像缓冲器; 滤波器参数估计器，用于根据原始视频数据和重建的视频数据估计滤波器参数; 以及自适应滤波器，用于利用所存储的滤波器参数对重构的视频数据执行滤波。

8. 发明授权

US09094658B2 Method and apparatus of adaptive loop filtering 有权
标题翻译：自适应环路滤波的方法和装置
公开(公告)号：US09094658B2
公开(公告)日：2015-07-28
申请号：US13093068
申请日：2011-04-25
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： H04N19/10 , H04N19/86 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/134 , H04N19/96 , H04N19/117 , H04N19/463 , H04N19/14 , H04N19/137 , H04N19/186 , H04N19/154 , H04N19/174 , H04N19/82 , H04N19/42
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，可能会产生编码噪声。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。

9. 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。

10. 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。

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