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1. 发明公开

EP3111641A4 METHOD OF MOTION INFORMATION CODING 审中-公开
公开(公告)号：EP3111641A4
公开(公告)日：2017-11-08
申请号：EP15774126
申请日：2015-04-01
申请人： MEDIATEK INC
发明人： CHEN CHING-YEH , CHUANG TZU-DER , HUANG YU-WEN
IPC分类号： H04N13/00 , H04N19/51
CPC分类号： H04N19/52 , H04N19/105 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/184 , H04N19/56 , H04N19/593 , H04N19/70

2. 发明公开

EP3085085A4 METHOD AND APPARATUS FOR ADAPTIVE MOTION VECTOR PRECISION 无效转让
公开(公告)号：EP3085085A4
公开(公告)日：2017-11-08
申请号：EP15743708
申请日：2015-01-29
申请人： MEDIATEK INC
发明人： CHUANG TZU-DER , CHEN CHING-YEH
IPC分类号： H04N19/523 , H04N19/105 , H04N19/159 , H04N19/176 , H04N19/46
CPC分类号： H04N19/176 , H04N19/102 , H04N19/105 , H04N19/134 , H04N19/159 , H04N19/46 , H04N19/523

3. 发明公开

EP3069511A4 METHOD OF BLOCK-BASED ADAPTIVE LOOP FILTERING 审中-公开
标题翻译： VERFAHREN ZUR BLOCKBASIERTEN ADAPTIVEN SCHLEIFENFILTERUNG
公开(公告)号：EP3069511A4
公开(公告)日：2017-09-27
申请号：EP14862061
申请日：2014-11-10
申请人： MEDIATEK INC
发明人： TSAI CHIA-YANG , CHEN CHING-YEH , HUANG YU-WEN
IPC分类号： H04N19/117 , H04N19/119 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/182 , H04N19/196 , H04N19/70 , H04N19/82
CPC分类号： H04N19/82 , H04N19/117 , H04N19/119 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/196 , H04N19/68 , H04N19/70
摘要： A method of adaptive loop filtering for reconstructed video to improve the performance is disclosed. In one embodiment, a loop filter is selected from one or more candidate filters including a circular symmetrical filter candidate. The candidate filters also may include a ½-symmetry filter candidate and a flag is used to select between different symmetries. In another embodiment, a priority-based block filter merge is disclosed. A filter merge list consisting of no more than a first number of filter candidates selected from corresponding filters used by corresponding set members in the neighboring block set is generated according to a priority order of the set members in the neighboring block set. In yet another embodiment, the loop filter is shared by reconstructed video in multiple image units of a same group. The filter merge groups are identified by differences of consecutive group indices.
摘要翻译：公开了一种对重建视频进行自适应环路滤波以改善性能的方法。在一个实施例中，从包括圆对称滤波器候选的一个或多个候选滤波器中选择环路滤波器。候选滤波器还可以包括1/2对称滤波器候选，并且标志用于在不同对称之间进行选择。在另一个实施例中，公开了基于优先级的块过滤器合并。根据相邻块集合中的集合成员的优先级顺序，生成不超过从相邻集合集合中的对应集合成员使用的相应滤波器中选择的第一数量的过滤器候选的过滤器合并列表。在又一个实施例中，环路滤波器由同一组的多个图像单元中的重构视频共享。过滤器合并组由连续组索引的差异来标识。

4. 发明公开

EP2769550A4 METHOD AND APPARATUS FOR LOOP FILTERING 审中-公开
标题翻译：用于磨削过滤的工艺和装置
公开(公告)号：EP2769550A4
公开(公告)日：2016-03-09
申请号：EP12840106
申请日：2012-10-10
申请人： MEDIATEK INC
发明人： CHEN YI-HAU , LEE KUN-BIN , JU CHI-CHENG , HUANG YU-WEN , LEI SHAW-MIN , FU CHIH-MING , CHEN CHING-YEH , TSAI CHIA-YANG , HSU CHIH-WEI
IPC分类号： H04N19/117 , H04N19/176 , H04N19/82
CPC分类号： H04N19/82 , H04N19/107 , H04N19/117 , H04N19/176 , H04N19/426 , H04N19/436 , H04N19/61

5. 发明公开

EP2676444A4 METHOD AND APPARATUS FOR SLICE COMMON INFORMATION SHARING 审中-公开
标题翻译：方法和装置PIECE双向交流的一般信息
公开(公告)号：EP2676444A4
公开(公告)日：2016-01-06
申请号：EP12747000
申请日：2012-02-16
申请人： MEDIATEK INC
发明人： TSAI CHIA-YANG , HSU CHIH-WEI , HUANG YU-WEN , CHEN CHING-YEH , FU CHIH-MING , LEI SHAW-MIN
IPC分类号： H04N19/70 , H04N19/117 , H04N19/172 , H04N19/174 , H04N19/82 , H04N19/86
CPC分类号： H04N19/117 , H04N19/136 , H04N19/172 , H04N19/174 , H04N19/70 , H04N19/82 , H04N19/86

6. 发明公开

EP2599308A4 METHOD AND APPARATUS OF DELTA QUANTIZATION PARAMETER PROCESSING FOR HIGH EFFICIENCY VIDEO CODING 有权转让
标题翻译：高效率视频编码的量化参数处理方法和装置
公开(公告)号：EP2599308A4
公开(公告)日：2015-09-23
申请号：EP11839484
申请日：2011-10-21
申请人： MEDIATEK INC
发明人： HUANG YU-WEN , CHEN CHING-YEH , FU CHIH-MING , HSU CHIH-WEI , CHANG YU-LIN , CHUANG TZU-DER , LEI SHAW-MIN
IPC分类号： H04N19/124 , H04N19/176 , H04N19/463 , H04N19/70 , H04N19/96
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.

7. 发明公开

EP2740271A4 METHOD AND APPARATUS FOR MV SCALING WITH INCREASED EFFECTIVE SCALING RATIO 有权转让
标题翻译： VERFAHREN UND VORRICHTUNGFÜRBEWEGUNGSVEKTORSKALIERUNG MITERHÖHTEMEFFEKTIVEMSKALIERUNGSVERHÄLTNIS
公开(公告)号：EP2740271A4
公开(公告)日：2016-09-21
申请号：EP12848451
申请日：2012-11-07
申请人： MEDIATEK INC
发明人： CHUANG TZU-DER , LIN JIAN-LIANG , CHEN CHING-YEH , CHEN YI-WEN , HUANG YU-WEN
IPC分类号： H04N19/58 , H04N19/42 , H04N19/513 , H04N19/52
CPC分类号： H04N19/52 , H04N19/00684 , H04N19/105 , H04N19/172 , H04N19/176 , H04N19/42 , H04N19/513 , H04N19/567 , H04N19/58 , H04N19/91
摘要： A method and apparatus for deriving a scaled MV (motion vector) for a current block based on a candidate MV associated with a candidate block are disclosed. Embodiments according to the present invention increase effective scaling factor of motion vector scaling. In one embodiment, a distance ratio of a first picture distance between a current picture and a target reference picture pointed to by a current motion vector of the current block to a second picture distance between a candidate picture corresponding to the candidate block and a candidate reference picture pointed to by the candidate MV is computed. The scaled MV is then generated based on the candidate MV according to the distance ratio, where the scaled MV has an effective scaling ratio between −m and n, and wherein m and n are positive integers greater than 4. The values of m and n can be 8, 16 or 32.
摘要翻译：公开了一种用于基于与候选块相关联的候选MV导出当前块的缩放MV（运动矢量）的方法和装置。根据本发明的实施例增加了运动矢量缩放的有效缩放因子。在一个实施例中，由当前块的当前运动矢量指向的当前画面和目标参考画面之间的第一画面距离与候选块对应的候选画面与候选画面之间的第二画面距离的距离比计算由候选MV指向的图片。然后根据距离比，基于候选MV生成缩放的MV，其中缩放的MV具有-m和n之间的有效缩放比例，并且其中m和n是大于4的正整数。m和n的值可以是8,16或32。

8. 发明公开

EP2661887A4 APPARATUS AND METHOD OF EFFICIENT SAMPLE ADAPTIVE OFFSET 审中-公开
标题翻译：用于有效自适应扫描替换的装置和方法
公开(公告)号：EP2661887A4
公开(公告)日：2016-06-15
申请号：EP11855222
申请日：2011-10-08
申请人： MEDIATEK INC
发明人： FU CHIH-MING , CHEN CHING-YEH , TSAI CHIA-YANG , HUANG YU-WEN , LEI SHAW-MIN
IPC分类号： H04N19/176 , H04N19/117 , H04N19/147 , H04N19/19 , H04N19/82 , H04N19/86 , H04N19/96
CPC分类号： H04N19/117 , H04N19/136 , H04N19/14 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/19 , H04N19/61 , H04N19/82 , H04N19/85 , H04N19/86 , H04N19/96
摘要： For sample adaptive offset, classification may be used to classify the pixels into multiple categories and pixels in each category are offset compensated using an offset value for the category. The classification may be based on values of the current pixel and its neighboring pixels before SAO compensation. Therefore, the SAO compensated pixel cannot be written back to the current pixel location until the category for all pixels are determined. An embodiment of the present invention stores the relation between the current pixel and said one or more neighboring pixels so that the SAO compensated current pixel can replace the current pixel without buffering the to-be-processed pixels for classification. The SAO process may be performed on a region by region basis to adapt to the local characteristics of the picture. Rate-distortion optimization (RDO) is often used to guide the mode decision, such as region splitting/region merging decision. Computations associated with the RDO process usually are very computational intensive. Accordingly, distortion reduction estimation is developed which can substantially reduce the required computation associated with RDO.

9. 发明公开

EP2767089A4 METHOD AND APPARATUS FOR LOOP FILTERING 审中-公开
标题翻译：方法和装置环路滤波
公开(公告)号：EP2767089A4
公开(公告)日：2016-03-09
申请号：EP12839403
申请日：2012-10-11
申请人： MEDIATEK INC
发明人： LEE KUN-BIN , CHEN YI-HAU , JU CHI-CHENG , HUANG YU-WEN , LEI SHAW-MIN , FU CHIH-MING , CHEN CHING-YEH , TSAI CHIA-YANG , HSU CHIH-WEI
IPC分类号： H04N19/196 , H04N19/117 , H04N19/126 , H04N19/176 , H04N19/423 , H04N19/436 , H04N19/44 , H04N19/82 , H04N19/86
CPC分类号： H04N19/86 , H04N19/00266 , H04N19/117 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/197 , H04N19/423 , H04N19/436 , H04N19/44 , H04N19/82
摘要： A method and apparatus for loop processing of reconstructed video in an encoder system are disclosed. The loop processing comprises an in-loop filter and one or more adaptive filters. The filter parameters for the adaptive filter are derived from the pre-in-loop video data so that the adaptive filter processing can be applied to the in-loop processed video data without the need of waiting for completion of the in-loop filter processing for a picture or an image unit. In another embodiment, two adaptive filters derive their respective adaptive filter parameters based on the same pre-in-loop video data. In yet another embodiment, a moving window is used for image-unit-based coding system incorporating in-loop filter and one or more adaptive filters. The in-loop filter and the adaptive filter are applied to a moving window of pre-in-loop video data comprising one or more sub-regions from corresponding one or more image units.

10. 发明公开

EP2708027A4 METHOD AND APPARATUS FOR REDUCTION OF IN-LOOP FILTER BUFFER 有权转让
标题翻译： VERFAHREN UND VORRICHTUNG ZUR REDUKTION EINES IN-LOOP-FILTERPUFFERS
公开(公告)号：EP2708027A4
公开(公告)日：2015-04-22
申请号：EP12781762
申请日：2012-04-19
申请人： MEDIATEK INC
发明人： HUANG YU-WEN , TSAI CHIA-YANG , CHEN CHING-YEH , FU CHIH-MING , LEI SHAW-MIN
IPC分类号： H04N19/46 , H04N19/117 , H04N19/132 , H04N19/134 , H04N19/182 , H04N19/423 , H04N19/80 , H04N19/82 , H04N19/86
CPC分类号： H04N19/0089 , H04N19/117 , H04N19/132 , H04N19/134 , H04N19/182 , H04N19/423 , H04N19/46 , 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：公开了一种重建视频的环路处理方法和装置。该方法和装置配置循环处理，使得处理不需要来自虚拟边界的另一侧的像素或缩小的像素。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，内循环处理也可以被配置为跳过像素。当循环内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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