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121. 发明申请

WO2019245692A1 TRELLIS CODED QUANTIZATION COEFFICIENT CODING 审中-公开
公开(公告)号：WO2019245692A1
公开(公告)日：2019-12-26
申请号：PCT/US2019/033344
申请日：2019-05-21
申请人： QUALCOMM INCORPORATED
发明人： COBAN, Muhammed Zeyd , KARCZEWICZ, Marta , DONG, Jie
IPC分类号： H04N19/124 , H04N19/18 , H04N19/184
摘要： An example device includes processing circuitry configured to determine a first state of a data structure, the first state representing a first quantizer applied to a previously quantized or inverse quantized value of a previous transform coefficient of residual data for a block of the video data and update the data structure to a second state according to the first state and a parity of a partial set of syntax elements representing a partial set of a plurality of coefficient levels for the previous transform coefficient. The processing circuitry is further configured to determine a second quantizer to be used to quantize or inverse quantize a current value of a current transform coefficient according to the second state of the data structure and quantize or inverse quantize the current value of the current transform coefficient using the second quantizer.

122. 发明申请

WO2019161062A1 MOTION COMPENSATION FOR CUBEMAP PACKED FRAMES 审中-公开
公开(公告)号：WO2019161062A1
公开(公告)日：2019-08-22
申请号：PCT/US2019/018021
申请日：2019-02-14
申请人： QUALCOMM INCORPORATED
发明人： COBAN, Muhammed Zeyd , VAN DER AUWERA, Geert , HENDRY, Fnu , KARCZEWICZ, Marta
IPC分类号： H04N19/563 , H04N19/597
摘要： A device for decoding 360-degree video data is configured to store a decoded picture of 360-degree video as a reference frame; derive an extended reference frame from the stored reference frame based on a padding amount by extending a first cube face in the reference frame; inter-predict a block of a current picture from a block of the extended reference frame by determining a motion vector for the block of the current picture; in response to a determination that the motion vector points to a cube face in the extended reference frame other than the first cube face, clipping the motion vector such that the motion vector points to a location in the first cube face; and locating a prediction block for a current block using the clipped motion vector.

123. 发明申请

WO2019010289A1 DEBLOCK FILTERING FOR 360-DEGREE VIDEO CODING 审中-公开
公开(公告)号：WO2019010289A1
公开(公告)日：2019-01-10
申请号：PCT/US2018/040897
申请日：2018-07-05
申请人： QUALCOMM INCORPORATED
发明人： HENDRY, Fnu , VAN DER AUWERA, Geert , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N19/597 , H04N19/105 , H04N19/176 , H04N19/117 , H04N19/167 , H04N19/86
摘要： A method of decoding 360-degree video, including receiving video data indicative of a 360-degree video picture projected onto a 2D picture, the 2D picture being divided into a plurality of blocks, predicting a first of the blocks of the 2D picture, and deblock filtering pixels along a border of the first of the blocks based on the position of the border between the first of the blocks and a second of the blocks in the 360-degree video picture.

124. 发明申请

WO2015084777A1 REFERENCE PICTURE SELECTION 审中-公开
标题翻译：参考图片选择
公开(公告)号：WO2015084777A1
公开(公告)日：2015-06-11
申请号：PCT/US2014/068031
申请日：2014-12-02
申请人： QUALCOMM INCORPORATED
发明人： TAO, Siping , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N19/105 , H04N19/164 , H04N19/172
CPC分类号： H04N19/433 , H04N19/105 , H04N19/152 , H04N19/164 , H04N19/172 , H04N19/423 , H04N19/51 , H04N19/573 , H04N19/577 , H04N19/58
摘要： Techniques are described where a device that includes a video decoder outputs information identifying a picture to a device that includes a video encoder. The video encoder may determine pictures that could have been used to inter-prediction encode the identified picture and/or pictures following the identified picture in coding order. The video encoder may inter-prediction encode a current picture based on one or more of the determined pictures and/or the identified picture.
摘要翻译：描述技术，其中包括视频解码器的设备将识别图像的信息输出到包括视频编码器的设备。视频编码器可以确定可能已经用于对编码顺序中所标识的图像之后的识别的图像和/或图像进行预测编码的图像。视频编码器可以基于所确定的图像中的一个或多个和/或所识别的图像来对当前图像进行预测编码。

125. 发明申请

WO2013154866A1 BYPASS BINS FOR REFERENCE INDEX CODING IN VIDEO CODING 审中-公开
标题翻译：用于视频编码的参考索引编码的旁路键
公开(公告)号：WO2013154866A1
公开(公告)日：2013-10-17
申请号：PCT/US2013/034968
申请日：2013-04-02
申请人： QUALCOMM INCORPORATED
发明人： KARCZEWICZ, Marta , SEREGIN, Vadim , WANG, Xianglin , COBAN, Muhammed Zeyd
IPC分类号： H04N7/26
CPC分类号： H04N19/103 , H03M7/30 , H04N19/13 , H04N19/463 , H04N19/70
摘要： In an example, aspects of this disclosure relate to a method for decoding a reference index syntax element in a video decoding process that includes decoding at least one bin of a reference index value with a context coding mode of a context-adaptive binary arithmetic coding (CABAC) process. The method also includes decoding, when the reference index value comprises more bins than the at least one bin coded with the context coded mode, at least another bin of the reference index value with a bypass coding mode of the CABAC process, and binarizing the reference index value.
摘要翻译：在一个示例中，本公开的方面涉及用于对视频解码过程中的参考索引语法元素进行解码的方法，该方法包括使用上下文自适应二进制算术编码的上下文编码模式对参考索引值的至少一个bin进行解码（ CABAC）过程。该方法还包括解码，当参考索引值包括比用上下文编码模式编码的至少一个分组的更多的分组时，具有CABAC处理的旁路编码模式的参考索引值的至少另一个bin，并且对引用进行二值化指数值

126. 发明申请

WO2013096018A1 PERFORMING MOTION VECTOR PREDICTION FOR VIDEO CODING 审中-公开
标题翻译：执行视频编码运动矢量预测
公开(公告)号：WO2013096018A1
公开(公告)日：2013-06-27
申请号：PCT/US2012/069000
申请日：2012-12-11
申请人： QUALCOMM INCORPORATED
发明人： CHEN, Jianle , COBAN, Muhammed Zeyd , WANG, Ye-Kui , WANG, Xianglin , KARCZEWICZ, Marta , CHIEN, Wei-Jung
IPC分类号： H04N7/26
CPC分类号： H04N19/463 , H04N19/196 , H04N19/197 , H04N19/52 , H04N19/70
摘要： In general, techniques are described for performing motion vector prediction for video coding. A video coding device comprising a processor may perform the techniques. The processor may be configured to determine a plurality of candidate motion vectors for a current block of the video data so as to perform the motion vector prediction process and scale one or more of the plurality of candidate motion vectors determined for the current block of the video data to generate one or more scaled candidate motion vectors. The processor may then be configured to modify the scaled candidate motion vectors to be within a specified range.
摘要翻译：通常，描述了用于执行视频编码的运动矢量预测的技术。包括处理器的视频编码装置可以执行这些技术。处理器可以被配置为确定用于视频数据的当前块的多个候选运动矢量，以便执行运动矢量预测处理并缩放为视频的当前块确定的多个候选运动矢量中的一个或多个数据以生成一个或多个缩放的候选运动矢量。处理器然后可以被配置为将缩放的候选运动矢量修改为在指定范围内。

127. 发明申请

WO2013074410A1 CONSTRAINED REFERENCE PICTURE SETS IN WAVE FRONT PARALLEL PROCESSING OF VIDEO DATA 审中-公开
标题翻译：视频数据的前置并行处理的约束参考图像集
公开(公告)号：WO2013074410A1
公开(公告)日：2013-05-23
申请号：PCT/US2012/064402
申请日：2012-11-09
申请人： QUALCOMM INCORPORATED
发明人： CHONG, In Suk , COBAN, Muhammed Zeyd , KARCZEWICZ, Marta
IPC分类号： H04N7/26
CPC分类号： H04N19/00545 , H04N19/103 , H04N19/159 , H04N19/17 , H04N19/174 , H04N19/176 , H04N19/436 , H04N19/46 , H04N19/503
摘要： A video encoder determines reference blocks for each inter-predicted prediction unit (PU) of a tree block group such that each of the reference blocks is in a reference picture that is in a reference picture subset for the tree block group. The reference picture subset for the tree block group includes less than all reference pictures in a reference picture set of the current picture. The tree block group comprises a plurality of concurrently-coded tree blocks in the current picture. For each inter-predicted PU of the tree block group, the video encoder indicates, in a bitstream that includes a coded representation of video data, a reference picture that includes the reference block for the inter-predicted PU. A video decoder receives the bitstream, determines the reference pictures of the inter-predicted PUs of the tree block group, and generates decoded video blocks using the reference blocks of the inter-predicted PUs.
摘要翻译：视频编码器确定树块组的每个预测预测单元（PU）的参考块，使得每个参考块在参考图像中，该参考图像在树块组的参考图像子集中。用于树块组的参考图像子集包括小于当前图像的参考图像集合中的所有参考图像。树块组包括当前图片中的多个同时编码的树块。对于树块组的每个相互预测的PU，视频编码器在包括视频数据的编码表示的比特流中指示包括用于帧间预测的PU的参考块的参考图片。视频解码器接收比特流，确定树块组的预测间PU的参考图像，并且使用帧间预测PU的参考块生成解码的视频块。

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