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1. 发明公开

EP3800885A1 IN LOOP SAMPLE PROCESSING FOR HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT VIDEO CODING 审中-实审
公开(公告)号：EP3800885A1
公开(公告)日：2021-04-07
申请号：EP20210112.7
申请日：2017-05-16
申请人： QUALCOMM Incorporated
发明人： RUSANOVSKYY, Dmytro , BUGDAYCI SANSLI, Done , SOLE ROJALS, Joel , RAMASUBRAMONIAN, Adarsh Krishnan , KARCZEWICZ, Marta
IPC分类号： H04N19/126 , H04N19/136 , H04N19/176 , H04N19/18 , H04N19/98
摘要： A device for decoding video data receives the video data, determines a scaling parameter for a block of the video data, wherein the scaling parameter comprises a multiplier and an offset, by calculating an average intensity value of samples of one or more neighboring blocks of the block and retrieving a scaling parameter from a lookup table stored at the device, wherein the lookup table associates a plurality of average intensity values with a plurality of scaling parameters; and scales the block in a video decoding loop using the scaling parameter to increase a dynamic range for luminance values of the block. A device for encoding video data partitions the video data into blocks; determines a scaling parameter for a block of the video data; and scales the block in a video encoding loop using the scaling parameter to decrease a dynamic range for luminance values of the block.

2. 发明授权

EP3158747B1 SINGLE COLOR PALETTE MODE IN VIDEO CODING 有权转让
公开(公告)号：EP3158747B1
公开(公告)日：2019-05-15
申请号：EP15741652.0
申请日：2015-06-19
申请人： Qualcomm Incorporated
发明人： KARCZEWICZ, Marta , PU, Wei , SEREGIN, Vadim , ZHANG, Li , SOLE ROJALS, Joel , ZOU, Feng , JOSHI, Rajan Laxman
IPC分类号： H04N19/503 , H04N19/593

3. 发明公开

EP3304905A1 ADAPTIVE CONSTANT-LUMINANCE APPROACH FOR HIGH DYNAMIC RANGE AND WIDE COLOR GAMUT VIDEO CODING 审中-公开
标题翻译：高动态范围和宽色域视频编码的自适应常亮照明方法
公开(公告)号：EP3304905A1
公开(公告)日：2018-04-11
申请号：EP16730658.8
申请日：2016-06-08
申请人： Qualcomm Incorporated
发明人： SOLE ROJALS, Joel , LEE, Sungwon , RUSANOVSKYY, Dmytro , RAMASUBRAMONIAN, Adarsh Krishnan , BUGDAYCI SANSLI, Done , KARCZEWICZ, Marta
IPC分类号： H04N19/46 , H04N1/64 , H04N9/68 , H04N19/12 , H04N19/186
CPC分类号： H04N19/187 , H04N1/64 , H04N5/20 , H04N9/68 , H04N19/12 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/186 , H04N19/46
摘要： A device may determine, based on data in a bitstream, a luma sample (Y) of a pixel, a Cb sample of the pixel, and the Cr sample of the pixel. Furthermore, the device may obtain, from the bitstream, a first scaling factor and a second scaling factor. Additionally, the device may determine, based on the first scaling factor, the Cb sample for the pixel, and Y, a converted B sample (B′) for the pixel. The device may determine, based on the second scaling factor, the Cr sample for the pixel, and Y, a converted R sample (R′) for the pixel. The device may apply an electro-optical transfer function (EOTF) to convert Y′, R′, and B′ to a luminance sample for the pixel, a R sample for the pixel, and a B sample for the pixel, respectively.

4. 发明公开

EP3205097A1 DEBLOCK FILTERING FOR INTRA BLOCK COPYING 审中-公开
标题翻译：内嵌块复制的解块滤波
公开(公告)号：EP3205097A1
公开(公告)日：2017-08-16
申请号：EP15778812.6
申请日：2015-09-22
申请人： Qualcomm Incorporated
发明人： RAPAKA, Krishnakanth , SOLE ROJALS, Joel , HSIEH, Cheng-Teh , PANG, Chao , SEREGIN, Vadim , KARCZEWICZ, Marta
IPC分类号： H04N19/159 , H04N19/176 , H04N19/117 , H04N19/86
CPC分类号： H04N19/117 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/513 , H04N19/593 , H04N19/82 , H04N19/86
摘要： Techniques are described for determining boundary strength value for an intra-block copy (IBC)-coded block and for selective storage of unfiltered pixel values of a region of a picture based on whether the region will be used as reference for IBC coding.
摘要翻译：描述了用于确定块内副本（IBC）编码块的边界强度值和用于基于该区域是否将用作IBC编码的参考来选择性存储图片的区域的未滤波像素值的技术。

5. 发明公开

EP3183880A1 UNIFY INTRA BLOCK COPY AND INTER PREDICTION 有权
标题翻译：统一的内部块复制和间预测
公开(公告)号：EP3183880A1
公开(公告)日：2017-06-28
申请号：EP15763683.8
申请日：2015-08-21
申请人： Qualcomm Incorporated
发明人： PANG, Chao , RAPAKA, Krishnakanth , WANG, Ye-Kui , SOLE ROJALS, Joel , KARCZEWICZ, Marta
IPC分类号： H04N19/52 , H04N19/523 , H04N19/593 , H04N19/70 , H04N19/176 , H04N19/159
CPC分类号： H04N19/124 , H04N19/159 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/523 , H04N19/593 , H04N19/70
摘要： A video coder may include a current picture and a reference picture in a reference picture list. The video coder may determine a co-located block of the reference picture. The co-located block is co-located with a current block of the current picture. Furthermore, the video coder derives a temporal motion vector predictor from the co-located block and may determine the temporal motion vector predictor has sub-pixel precision. The video coder may right-shift the temporal motion vector predictor determined to have sub-pixel precision. In addition, the video coder may determine, based on the right-shifted temporal motion vector predictor, a predictive block within the current picture.
摘要翻译：视频译码器可包括参考图片列表中的当前图片和参考图片。视频译码器可确定参考图片的共位块。 co-located块与当前图片的当前块位于同一位置。此外，视频译码器从co-located块导出时间运动矢量预测子，并且可确定时间运动矢量预测子具有子像素精度。视频译码器可将经确定具有子像素精度的时间运动矢量预测因子右移。另外，视频译码器可基于右移时间运动向量预测因子确定当前图片内的预测性块。

6. 发明公开

EP3164993A1 METHOD FOR PALETTE MODE CODING 有权转让
标题翻译：用于调色板模式编码的方法
公开(公告)号：EP3164993A1
公开(公告)日：2017-05-10
申请号：EP15736769.9
申请日：2015-06-30
申请人： Qualcomm Incorporated
发明人： PU, Wei , JOSHI, Rajan Laxman , CHEN, Jianle , KARCZEWICZ, Marta , HSIEH, Cheng-Teh , ZOU, Feng , SOLE ROJALS, Joel
IPC分类号： H04N19/593 , H04N19/70
CPC分类号： H04N19/593 , H04N19/176 , H04N19/70 , H04N19/91
摘要： A method for decoding video data provided in a bitstream, where the bitstream includes a coding unit (CU) coded in palette mode, includes: parsing a palette associated with the CU provided in the bitstream; parsing one or more run lengths provided in the bitstream that are associated with the CU; parsing one or more index values provided in the bitstream that associated with the CU; and parsing one or more escape pixel values provided in the bitstream that are associated with the CU. The escape pixel values may be parsed from consecutive positions in the bitstream, the consecutive positions being in the bitstream after all of the run lengths and the index values associated with the CU. The method may further include decoding the CU based on the parsed palette, parsed run lengths, parsed index values, and parsed escape values.
摘要翻译：一种用于对比特流中提供的视频数据进行解码的方法，其中比特流包括以调色板模式编码的编码单元（CU），包括：解析与在比特流中提供的CU相关联的调色板; 解析在所述比特流中提供的与所述CU相关联的一个或多个游程长度; 解析在所述位流中提供的与所述CU相关联的一个或多个索引值; 以及解析在所述位流中提供的与所述CU相关联的一个或多个逃逸像素值。可以从比特流中的连续位置解析转义像素值，在所有游程长度和与CU相关联的索引值之后，连续位置在比特流中。该方法可以进一步包括基于解析的调色板，解析的游程长度，解析的索引值和解析的转义值来解码CU。

7. 发明公开

EP3155814A1 DETERMINING APPLICATION OF DEBLOCKING FILTERING TO PALETTE CODED BLOCKS IN VIDEO CODING 有权
标题翻译： BESTIMMUNG DER ANWENDUNG EINER ENTBLOCKIERUNGSFILTRIERUNG AUF PALETTENCODIERTEBLÖCKEIN DER VIDEOCODIERUNG
公开(公告)号：EP3155814A1
公开(公告)日：2017-04-19
申请号：EP15741625.6
申请日：2015-06-11
申请人： Qualcomm Incorporated
发明人： PU, Wei , SOLE ROJALS, Joel , JOSHI, Rajan Laxman , KARCZEWICZ, Marta
IPC分类号： H04N19/159 , H04N19/176 , H04N19/117 , H04N19/82 , H04N19/86
摘要： Techniques are described for palette-based video coding. In palette-based coding, a video coder may form a so-called “palette” as a table of colors for representing video data of a given block of video data. Rather than coding actual pixel values or their residuals for the given block, the video coder may code index values for one or more of the pixels. The index values map the pixels to entries in the palette representing the colors of the pixels. Techniques are described for determining the application of deblocking filtering for pixels of palette coded blocks at a video encoder or a video decoder. In addition, techniques are described for determining quantization parameter (QP) values and delta QP values used to quantize escape pixel values of palette coded blocks at the video encoder or the video decoder.
摘要翻译：描述了基于调色板的视频编码技术。在基于调色板的编码中，视频编码器可以形成所谓的“调色板”作为表示给定视频数据块的视频数据的颜色表。视频编码器不必为给定块编码实际像素值或其残差，而是可以为一个或多个像素编码索引值。索引值将像素映射到调色板中表示像素颜色的条目。描述了用于确定在视频编码器或视频解码器处调色板编码块的像素的去块滤波的应用的技术。此外，描述了用于确定用于量化视频编码器或视频解码器处的调色板编码块的转义像素值的量化参数（QP）值和ΔQP值的技术。

8. 发明公开

EP3120558A1 SEARCH REGION DETERMINATION FOR INTRA BLOCK COPY IN VIDEO CODING 审中-公开
标题翻译： DER VIDEOCODIERUNG的SUCHREGIONSBESTIMMUNGFÜRINTRABLOCKKOPIE
公开(公告)号：EP3120558A1
公开(公告)日：2017-01-25
申请号：EP15715039.2
申请日：2015-03-20
申请人： Qualcomm Incorporated
发明人： PANG, Chao , SOLE ROJALS, Joel , HSIEH, Cheng-Teh , KARCZEWICZ, Marta
IPC分类号： H04N19/563 , H04N19/56 , H04N19/593 , H04N19/57
CPC分类号： H04N19/52 , H04N19/105 , H04N19/139 , H04N19/182 , H04N19/56 , H04N19/563 , H04N19/57 , H04N19/593
摘要： A video coder may determine a search region for coding a current block of video data using Intra Block Copy (Intra BC). In some examples, the video coder determines a central point for the search region, and determines the search region for the current block based on the central point and a defined size for the search region. The video coder stores reconstructed blocks of the video data from a current picture that includes the current block in a memory based on the determined search region. The video coder codes information from which to identify one of the reconstructed blocks within the search region, and codes the current block based on the identified one of the reconstructed blocks according to Intra BC.
摘要翻译：视频编码器可以使用帧内复制（Intra Block Copy，Intra Block Copy）来确定用于编码当前视频数据块的搜索区域。在一些示例中，视频编码器确定搜索区域的中心点，并且基于搜索区域的中心点和定义的大小来确定当前块的搜索区域。视频编码器基于所确定的搜索区域，将包括当前块的当前图像的视频数据的重构块存储在存储器中。视频编码器对来自搜索区域内的重建块之一的信息进行编码，并且根据BC内部基于所识别的一个重构块对当前块进行编码。

9. 发明公开

EP3120543A1 HASH-BASED ENCODER SEARCH FOR INTRA BLOCK COPY 审中-公开
标题翻译： HASH-BASIERTE CODIERERSUCHEFÜRINTRABLOCKKOPIE
公开(公告)号：EP3120543A1
公开(公告)日：2017-01-25
申请号：EP15717694.2
申请日：2015-03-17
申请人： Qualcomm Incorporated
发明人： PANG, Chao , LI, Xiang , SOLE ROJALS, Joel , KARCZEWICZ, Marta
IPC分类号： H04N19/105 , H04N19/46 , H04N19/30 , H04N19/136 , H04N19/18 , H04N19/593
摘要： An apparatus configured to encode video information of a picture includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store a hash table that includes at least one hash index corresponding to reference blocks in the picture, the reference blocks being a subset of available blocks in the picture. The processor is configured to map a current block to a hash index in the hash table based on the application of a hash function to the current block, identify, from the hash table, reference blocks that correspond to the hash index, select a prediction block from among the reference blocks based on a comparison of the current block to the reference blocks, and encode the video information using the selected prediction block.
摘要翻译：被配置为对图像的视频信息进行编码的装置包括与存储器单元通信的存储器单元和处理器。存储器单元被配置为存储包括与图像中的参考块相对应的至少一个散列索引的散列表，参考块是图片中的可用块的子集。处理器被配置为基于对当前块的哈希函数的应用将当前块映射到散列表中的散列索引，从哈希表识别与散列索引对应的参考块，选择预测块基于当前块与参考块的比较，并且使用所选择的预测块对视频信息进行编码。

10. 发明公开

EP3117613A1 PALETTE-BASED VIDEO CODING 无效
标题翻译： PALETTENBASIERTE VIDEOCODIERUNG
公开(公告)号：EP3117613A1
公开(公告)日：2017-01-18
申请号：EP15714327.2
申请日：2015-03-13
申请人： Qualcomm Incorporated
发明人： PU, Wei , ZOU, Feng , JOSHI, Rajan Laxman , SOLE ROJALS, Joel , KARCZEWICZ, Marta
IPC分类号： H04N19/176 , H04N19/90 , H04N19/93
CPC分类号： H04N19/186 , H04N19/176 , H04N19/70 , H04N19/90 , H04N19/93
摘要： In an example, a method of coding video data includes determining, by a video coder and for a block of video data, a palette having a plurality of entries indicating a plurality of respective color values, wherein a first line of the block of video data includes a pixel located adjacent to an edge of the block of video data, and wherein a second line of the block of video data includes a pixel located adjacent to the edge of the block and adjacent to the pixel of the first line. In this example, the method also includes coding, in a scan order, index values that map pixels of the block to entries in the palette, wherein the pixel of the second line immediately follows the pixel of the first line in the scan order.
摘要翻译：在一个示例中，视频数据的编码方法包括：通过视频编码器和视频数据块确定具有指示多个相应颜色值的多个条目的调色板，其中视频数据块的第一行包括位于视频数据块的边缘附近的像素，并且其中视频数据块的第二行包括位于与块的边缘相邻并且与第一行的像素相邻的像素。在该示例中，该方法还包括以扫描顺序编码将块的像素映射到调色板中的条目的索引值，其中第二行的像素紧跟扫描顺序中的第一行的像素。

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