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1. 发明申请

WO2016057701A1 INTRA BC AND INTER UNIFICATION 审中-公开
标题翻译： INTRA BC和INTER UNI
公开(公告)号：WO2016057701A1
公开(公告)日：2016-04-14
申请号：PCT/US2015/054537
申请日：2015-10-07
申请人： QUALCOMM INCORPORATED
发明人： PANG, Chao , WANG, Ye-Kui , RAPAKA, Krishnakanth , SEREGIN, Vadim , KARCZEWICZ, Marta
IPC分类号： H04N19/52 , H04N19/70
CPC分类号： H04N19/593 , H04N19/176 , H04N19/186 , H04N19/44 , H04N19/513 , H04N19/52 , H04N19/70
摘要： In general, the disclosure describes techniques related to block vector coding for Intra Block Copy and Inter modes. In one example, the disclosure is directed to a video coding device comprising a memory configured to store video data and one or more processors. The video coding device is configured to determine a reference picture used for coding the current video block and determine a picture order count (POC) value for the reference picture. In response to the POC value for the reference picture being equal to a POC value for a current picture that includes the current video block, the video coding device sets a value of a syntax element to indicate that a reference picture list includes the current picture. Otherwise, the video coding device sets the value of the syntax element to indicate that the reference picture list does not include the current picture.
摘要翻译：通常，本公开描述了与块内复制和帧间模式的块向量编码有关的技术。在一个示例中，本公开涉及一种视频编码设备，包括被配置为存储视频数据的存储器和一个或多个处理器。视频编码装置被配置为确定用于对当前视频块进行编码的参考图像，并且确定参考图像的图像顺序计数（POC）值。响应于参考图像的POC值等于包括当前视频块的当前图像的POC值，视频编码装置设置语法元素的值以指示参考图片列表包括当前图片。否则，视频编码装置设置语法元素的值，以指示参考图片列表不包括当前图片。

2. 发明申请

WO2016003819A1 METHOD FOR MOTION VECTOR DIFFERENCE (MVD) CODING OF SCREEN CONTENT VIDEO DATA 审中-公开
标题翻译：用于运动矢量差（MVD）编码屏幕内容视频数据的方法
公开(公告)号：WO2016003819A1
公开(公告)日：2016-01-07
申请号：PCT/US2015/038076
申请日：2015-06-26
申请人： QUALCOMM INCORPORATED
发明人： RAPAKA, Krishnakanth , KARCZEWICZ, Marta , PANG, Chao , SOLE ROJALS, Joel
IPC分类号： H04N19/52 , H04N19/139 , H04N19/176 , H04N19/13 , H04N19/184
CPC分类号： H04N19/176 , H04N19/13 , H04N19/139 , H04N19/184 , H04N19/52
摘要： A method for motion vector difference (MVD) coding of screen content video data is disclosed. In one aspect, the method includes determining an MVD between a predicted motion vector and a current motion vector and generating a binary string comprising n bins via binarizing the MVD. The method further includes determining whether an absolute value of the MVD is greater than a threshold value and encoding a subset of the n bins via an exponential Golomb code having an order that is greater than one in response to the absolute value of the MVD being greater than the threshold value.
摘要翻译：公开了一种用于屏幕内容视频数据的运动矢量差（MVD）编码的方法。一方面，该方法包括：通过二值化MVD，确定预测运动矢量与当前运动矢量之间的MVD，并产生包括n个箱的二进制串。该方法还包括确定MVD的绝对值是否大于阈值，并且通过响应于MVD的绝对值更大的具有大于1的顺序的指数Golomb码对n个存储体的子集进行编码超过阈值。

3. 发明申请

WO2015057706A1 SYSTEMS AND METHODS FOR INTER-LAYER RPS DERIVATION BASED ON SUB-LAYER REFERENCE PREDICTION DEPENDENCY 审中-公开
标题翻译：基于子层参考预测依赖的层间RPS衍生的系统和方法
公开(公告)号：WO2015057706A1
公开(公告)日：2015-04-23
申请号：PCT/US2014/060486
申请日：2014-10-14
申请人： QUALCOMM INCORPORATED
发明人： RAPAKA, Krishnakanth , WANG, Ye-Kui , CHEN, Jianle , HENDRY, Fnu
IPC分类号： H04N19/70 , H04N19/30 , H04N19/597
CPC分类号： H04N19/44 , H04N19/30 , H04N19/597 , H04N19/70
摘要： Systems and methods for inter-layer reference picture set derivation based on sub-layer reference prediction dependency are described herein. One aspect of the subject matter described in the disclosure provides a video encoder comprising a memory configured to store one or more direct reference layer pictures of one or more current pictures in a sequence, wherein the one or more current pictures are associated with a current layer, the current layer being associated with the one or more direct reference layers. The video encoder further comprises a processor in communication with the memory unit. The memory unit is configured to set an indication associated with a current picture to indicate whether all of the one or more direct reference layer pictures of the current picture that are not restricted for use in inter-layer prediction are included in an inter-layer reference picture set associated with the current picture.
摘要翻译：本文描述了基于子层参考预测依赖性的层间参考图像集导出的系统和方法。在本公开中描述的主题的一个方面提供了一种视频编码器，其包括被配置为存储一个或多个当前图像的序列中的一个或多个直接参考图像图像的存储器，其中所述一个或多个当前图像与当前层相关联当前层与一个或多个直接参考层相关联。视频编码器还包括与存储器单元通信的处理器。存储器单元被配置为设置与当前图像相关联的指示，以指示是否将不限于在层间预测中使用的当前图片的一个或多个直接参考图像图片全部包括在层间参考中与当前图片相关联的图片集。

4. 发明申请

WO2015057656A1 THREE-DIMENSIONAL LOOKUP TABLE BASED COLOR GAMUT SCALABILITY IN MULTI-LAYER VIDEO CODING 审中-公开
标题翻译：基于三维视觉编码的基于三维查找表的彩色游戏可扩展性
公开(公告)号：WO2015057656A1
公开(公告)日：2015-04-23
申请号：PCT/US2014/060413
申请日：2014-10-14
申请人： QUALCOMM INCORPORATED
发明人： LI, Xiang , RAPAKA, Krishnakanth , CHEN, Jianle , KARCZEWICZ, Marta
IPC分类号： H04N19/30 , H04N19/42
CPC分类号： H04N13/161 , H04N13/194 , H04N19/30 , H04N19/42 , H04N19/597
摘要： Techniques are described for 3D lookup table based color gamut scalability in multi-layer video coding. A lower layer of video data may include color data in a first color gamut and a higher layer of the video data may include color data in a second color gamut. To generate inter-layer reference pictures, a video coder performs color prediction to convert the color data of a reference picture in the first color gamut to the second color gamut. The video coder may perform color prediction using a 3D lookup table. According to the techniques, the video coder generates at least one 3D lookup table having a size that is different for a luma component than for a first chroma component and a second chroma component. In this way, the total size of the table may be reduced while maintaining good coding performance.
摘要翻译：在多层视频编码中描述了基于3D查找表的色域可伸缩性的技术。视频数据的下层可以包括第一色域中的颜色数据，并且视频数据的较高层可以包括第二色域中的颜色数据。为了产生层间参考图像，视频编码器执行颜色预测以将第一色域中的参考图像的颜色数据转换为第二色域。视频编码器可以使用3D查找表来执行颜色预测。根据该技术，视频编码器生成至少一个具有与亮度分量不同的尺寸的3D查找表，而不是第一色度分量和第二色度分量。以这种方式，可以降低表的总大小，同时保持良好的编码性能。

5. 发明申请

WO2014168799A1 INTER-LAYER PICTURE SIGNALING AND RELATED PROCESSES 审中-公开
标题翻译：层间图像信号和相关过程
公开(公告)号：WO2014168799A1
公开(公告)日：2014-10-16
申请号：PCT/US2014/032718
申请日：2014-04-02
申请人： QUALCOMM INCORPORATED
发明人： WANG, Ye-Kui , CHEN, Jianle , RAPAKA, Krishnakanth , CHEN, Ying
IPC分类号： H04N19/573 , H04N19/463 , H04N19/70 , H04N19/30
CPC分类号： H04N19/30 , H04N19/463 , H04N19/573 , H04N19/58 , H04N19/70
摘要： In one implementation, an apparatus is provided for encoding or decoding video information. The apparatus comprises a memory configured to store inter-layer reference pictures associated with a current picture that is being coded. The apparatus further comprises a processor operationally coupled to the memory. In one embodiment, the processor is configured to indicate a number of inter-layer reference pictures to use to predict the current picture using inter-layer prediction. The processor is also configured to indicate which of the inter-layer reference pictures to use to predict the current picture using inter-layer prediction. The processor is also configured to determine an inter-layer reference picture set associated with the current picture using the indication of the number of inter-layer reference pictures and the indication of which of the inter-layer reference pictures to use to predict the current picture using inter-layer prediction.
摘要翻译：在一个实现中，提供了一种用于对视频信息进行编码或解码的装置。该装置包括被配置为存储与正被编码的当前图片相关联的层间参考图片的存储器。该装置还包括可操作地耦合到存储器的处理器。在一个实施例中，处理器被配置为指示用于使用层间预测来预测当前图像的多个层间参考图片。处理器还被配置为指示哪个层间参考图片用于使用层间预测来预测当前图像。处理器还被配置为使用层间参考图片的数量的指示和用于预测当前图片的哪个层间参考图片的指示来确定与当前图片相关联的层间参考图片集使用层间预测。

6. 发明申请

WO2014036162A1 INTRA PREDICTION MOST PROBABLE MODE ORDER IMPROVEMENT FOR SCALABLE VIDEO CODING 审中-公开
标题翻译：内部预测最可行的模式订购可扩展视频编码的改进
公开(公告)号：WO2014036162A1
公开(公告)日：2014-03-06
申请号：PCT/US2013/057123
申请日：2013-08-28
申请人： QUALCOMM INCORPORATED
发明人： RAPAKA, Krishnakanth , KANG, Jewon , CHEN, Jianle , KARCZEWICZ, Marta , SEREGIN, Vadim
IPC分类号： H04N7/26
CPC分类号： H04N19/00024 , H04N19/105 , H04N19/11 , H04N19/187 , H04N19/30 , H04N19/70
摘要： An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores video information associated with a reference layer and a corresponding enhancement layer. The processor receives a mode list associated with the enhancement layer, the mode list comprising three entities, each entity identifying a different mode for determining a value of a video unit located at a position within the enhancement layer. The processor changes the mode list when a mode associated with a co-located video unit in the reference layer is not stored as the first entity in the mode list. The co-located video unit is located at a position in the reference layer corresponding to the position of the video unit in the enhancement layer.
摘要翻译：根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。存储单元存储与参考层和对应的增强层相关联的视频信息。处理器接收与增强层相关联的模式列表，模式列表包括三个实体，每个实体标识用于确定位于增强层内的位置的视频单元的值的不同模式。当与参考层中的同位置视频单元相关联的模式未被存储为模式列表中的第一实体时，处理器改变模式列表。同位置视频单元位于与增强层中的视频单元的位置相对应的参考层中的位置。

7. 发明申请

WO2014011559A1 SMOOTHING OF DIFFERENCE REFERENCE PICTURE 审中-公开
标题翻译：打印不同参考图片
公开(公告)号：WO2014011559A1
公开(公告)日：2014-01-16
申请号：PCT/US2013/049589
申请日：2013-07-08
申请人： QUALCOMM INCORPORATED
发明人： RAPAKA, Krishnakanth , CHEN, Jianle , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/34
CPC分类号： H04N19/30 , H04N19/105 , H04N19/147 , H04N19/33 , H04N19/593 , H04N19/70 , H04N19/80 , H04N19/82 , H04N19/85 , H04N19/86
摘要： An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores difference video information associated with a difference video layer of pixel information derived from a difference between an enhancement layer and a corresponding base layer of the video information. The processor determines a value of a video unit based on a reference video unit or spatial neighboring video unit within the difference video layer and applies a smoothing filter to the reference video unit or spatial neighboring video unit.
摘要翻译：根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。存储单元存储与视频信息的增强层和对应的基本层之间的差异导出的像素信息的差异视频层相关联的差分视频信息。处理器基于差分视频层内的参考视频单元或空间相邻视频单元来确定视频单元的值，并将平滑滤波器应用于参考视频单元或空间相邻视频单元。

8. 发明申请

WO2014011502A1 SKIP TRANSFORM AND RESIDUAL CODING MODE EXTENSION FOR DIFFERENCE DOMAIN INTRA PREDICTION 审中-公开
标题翻译：不同域内预测的跳转变换和残差编码模式扩展
公开(公告)号：WO2014011502A1
公开(公告)日：2014-01-16
申请号：PCT/US2013/049472
申请日：2013-07-05
申请人： QUALCOMM INCORPORATED
发明人： RAPAKA, Krishnakanth , CHEN, Jianle , KARCZEWICZ, Marta
IPC分类号： H04N7/26 , H04N7/34
CPC分类号： H04N19/103 , H04N19/11 , H04N19/147 , H04N19/176 , H04N19/187 , H04N19/196 , H04N19/30 , H04N19/46 , H04N19/593 , H04N19/70
摘要： An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores difference video information associated with a difference video layer of pixel information derived from a difference between an enhancement layer and a corresponding base layer of the video information. The processor determines a value of a video unit based on the difference video layer. The processor is further configured to refrain from performing a transform and residual coding of the determined value of the video unit.
摘要翻译：根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。存储单元存储与视频信息的增强层和对应的基本层之间的差异导出的像素信息的差异视频层相关联的差分视频信息。处理器基于差异视频层来确定视频单元的值。处理器还被配置为不执行对所确定的视频单元的值的变换和残差编码。

9. 发明申请

WO2014011501A1 MOTION VECTOR DIFFERENCE CODING EXTENSION FOR ENHANCEMENT LAYER 审中-公开
标题翻译：运动矢量差分编码扩展增强层
公开(公告)号：WO2014011501A1
公开(公告)日：2014-01-16
申请号：PCT/US2013/049456
申请日：2013-07-05
申请人： QUALCOMM INCORPORATED
发明人： RAPAKA, Krishnakanth , CHEN, Jianle , KARCZEWICZ, Marta
IPC分类号： H04N7/46 , H04N7/26 , H04N7/36
CPC分类号： H04N19/51 , H04N19/30 , H04N19/52 , H04N19/523 , H04N19/59
摘要： An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores difference video information associated with a difference video layer of pixel information derived from a difference between an enhancement layer and a corresponding base layer of the video information. The processor determines pixel accuracy of motion predictor information, determines a motion vector based on the pixel accuracy of the motion predictor information, and determines a value of a video unit based at least in part on the motion vector.
摘要翻译：根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。存储单元存储与视频信息的增强层和对应的基本层之间的差异导出的像素信息的差异视频层相关联的差分视频信息。处理器确定运动预测器信息的像素精度，基于运动预测器信息的像素精度确定运动矢量，并且至少部分地基于运动矢量确定视频单元的值。

10. 发明申请

WO2016209804A1 REFERENCE PICTURE LIST CONSTRUCTION IN INTRA BLOCK COPY MODE 审中-公开
标题翻译：内嵌块复制模式参考图片列表结构
公开(公告)号：WO2016209804A1
公开(公告)日：2016-12-29
申请号：PCT/US2016/038498
申请日：2016-06-21
申请人： QUALCOMM INCORPORATED
发明人： SEREGIN, Vadim , RAPAKA, Krishnakanth , WANG, Ye-Kui , KARCZEWICZ, Marta
IPC分类号： H04N19/105 , H04N19/50 , H04N19/503 , H04N19/70 , H04N19/172 , H04N19/593 , H04N19/573
CPC分类号： H04N19/503 , H04N19/573 , H04N19/593 , H04N19/70
摘要： An apparatus configured to construct a reference picture list includes a memory and one or more processors in communication with the memory. The memory is configured to store one or more reference pictures. The one or more processors are configured to determine (i) a first number representative of a total number of reference pictures available for prediction in at least one of inter mode or intra block copy mode and (ii) a second number representative of a total number of reference pictures to be included in the reference picture list, and in response to a determination that the second number is greater than or equal to the first number, refrain from replacing a reference picture in the reference picture list with a current picture to be predicted. The one or more processors may encode or decode the current picture based on the reference picture list.
摘要翻译：被配置为构造参考图片列表的装置包括存储器和与存储器通信的一个或多个处理器。存储器被配置为存储一个或多个参考图片。所述一个或多个处理器被配置为确定（i）代表在帧间模式或块内复制模式中的至少一个中可用于预测的参考图片的总数的第一数字，以及（ii）总数的第二数字代表的参考图像被包括在参考图像列表中，并且响应于第二个数量大于或等于第一个数字的确定，不用当前要预测的图像替换参考图像列表中的参考图像。一个或多个处理器可以基于参考图片列表对当前图片进行编码或解码。

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