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11. 发明申请

WO2018229327A1 A METHOD AND AN APPARATUS AND A COMPUTER PROGRAM PRODUCT FOR VIDEO ENCODING AND DECODING 审中-公开
公开(公告)号：WO2018229327A1
公开(公告)日：2018-12-20
申请号：PCT/FI2018/050346
申请日：2018-05-09
申请人： NOKIA TECHNOLOGIES OY
发明人： LAINEMA, Jani
IPC分类号： H04N19/593 , H04N19/11 , H04N19/159 , H04N19/157 , H04N19/176 , G06T9/00
CPC分类号： H04N19/11 , G06T9/00 , H04N19/147 , H04N19/159 , H04N19/167 , H04N19/176 , H04N19/593
摘要： The invention relates to a method and a technical equipment, where method comprises determining a setof base intra prediction directions in an image; selecting a base intra prediction direction from the set of base intra prediction directions for an intra prediction block; determining if mode rotation is applied for said intra prediction block; if mode rotation is applied for said intra prediction block, determining an effective prediction direction, wherethe effective prediction direction is defined to be between said selected base prediction direction and next base prediction direction in the set of base intra prediction directions either in clockwise or counterclockwise direction; if mode rotation is not applied for said intra prediction block, using said selected intra prediction direction as an effective prediction direction; andgenerating sample prediction for said intra prediction block using the effective prediction direction.

12. 发明申请

WO2017178696A1 AN APPARATUS AND A COMPUTER PROGRAM PRODUCT FOR VIDEO ENCODING AND DECODING, AND A METHOD FOR THE SAME 审中-公开
标题翻译：用于视频编码和解码的设备和计算机程序产品以及用于该视频编码和解码的方法
公开(公告)号：WO2017178696A1
公开(公告)日：2017-10-19
申请号：PCT/FI2017/050248
申请日：2017-04-07
申请人： NOKIA TECHNOLOGIES OY
发明人： LAINEMA, Jani
IPC分类号： H04N19/593 , H04N19/176 , H04N19/159 , H04N19/105 , G06T9/00 , H04N19/96
CPC分类号： H04N19/105 , H04N19/147 , H04N19/176 , H04N19/593
摘要： The invention relates to a solution for encoding and decoding, wherein an intra prediction direction is determined for a first coding unit; an array of active reference samples is generated for said first coding unit by determining a distance measure between said first coding unit and an array of remote reference samples; by determining a location of at least one remote reference sample of said array of remote reference samples using said intra prediction direction and said distance measure; and by adding said at least one remote reference sample to said array of active reference samples. A block of intra prediction samples is generated using said intra prediction direction and said array of active reference samples.
摘要翻译：本发明涉及用于编码和解码的解决方案，其中针对第一编码单元确定帧内预测方向; 通过确定所述第一编码单元和远程参考样本阵列之间的距离量度，为所述第一编码单元生成有效参考样本阵列; 通过使用所述帧内预测方向和所述距离测量来确定所述远程参考样本阵列的至少一个远程参考样本的位置; 并且通过将所述至少一个远程参考样本添加到所述活动参考样本阵列。使用所述帧内预测方向和所述活动参考样本阵列来生成一组帧内预测样本。

13. 发明申请

WO2015140400A1 METHOD AND TECHNICAL EQUIPMENT FOR VIDEO ENCODING AND DECODING 审中-公开
标题翻译：用于视频编码和解码的方法和技术设备
公开(公告)号：WO2015140400A1
公开(公告)日：2015-09-24
申请号：PCT/FI2015/050170
申请日：2015-03-16
申请人： NOKIA TECHNOLOGIES OY
发明人： LAINEMA, Jani , BUGDAYCI, Done , UGUR, Kemal
IPC分类号： H04N19/70 , H04N19/157 , G06T9/00 , H04N19/172
CPC分类号： H04N19/112 , H04N19/129 , H04N19/16 , H04N19/182 , H04N19/186 , H04N19/46 , H04N19/593 , H04N19/70 , H04N19/93
摘要： There are disclosed various methods, apparatuses and computer program products for video encoding/decoding. In some embodiments the method comprises decoding a coding unit being coded with palette coding, wherein an indication of a scan order of the palette mode is decoded for said coding unit. Mode information for at least one pixel within the coding unit is decoded. Depending on the mode information, a decoded pixel value is set based on indicated scan order; or an indication to determine the number of the pixels sharing the value and indication for a reconstruction value of number of pixels are decoded; or an indication for a reconstruction value of a pixel is decoded.
摘要翻译：公开了用于视频编码/解码的各种方法，装置和计算机程序产品。在一些实施例中，该方法包括对通过调色板编码进行编码的编码单元进行解码，其中为所述编码单元解码调色板模式的扫描顺序的指示。对编码单元内的至少一个像素的模式信息进行解码。根据模式信息，基于指示的扫描顺序设置解码像素值; 或者用于确定共享该值的像素的数量和用于像素数的重建值的指示的指示; 或者对像素的重建值的指示进行解码。

14. 发明申请

WO2023089230A2 AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING 审中-公开
公开(公告)号：WO2023089230A2
公开(公告)日：2023-05-25
申请号：PCT/FI2022/050738
申请日：2022-11-09
申请人： NOKIA TECHNOLOGIES OY
发明人： GHAZNAVI YOUVALARI, Ramin , ASTOLA, Pekka , LAINEMA, Jani , AMINLOU, Alireza
摘要： A method comprising: obtaining an image block unit comprising samples in color channels of one or two chrominance channels and one luminance channel; reconstructing samples of said luminance channels of the image block unit; determining parameters for at least one prediction model for predicting samples of at least one channel of image block unit using a prediction model based on one or more of reference samples in a neighboring block in current channel/ frame, one or more of the reference samples in the neighboring of the co-located block in reference channel/frame; and one or more of the reference samples inside the co-located block in reference channel/frame; and determining said at least one prediction model as a polynomial and/or exponential prediction model.

15. 发明申请

WO2022238967A1 METHOD, APPARATUS AND COMPUTER PROGRAM PRODUCT FOR PROVIDING FINETUNED NEURAL NETWORK 审中-公开
公开(公告)号：WO2022238967A1
公开(公告)日：2022-11-17
申请号：PCT/IB2022/054453
申请日：2022-05-13
申请人： NOKIA TECHNOLOGIES OY
发明人： LAINEMA, Jani , CRICRÌ, Francesco , ZHANG, Honglei , REZAZADEGAN TAVAKOLI, Hamed , LAM, Yat Hong , HANNUKSELA, Miska Matias , ZOU, Nannan
IPC分类号： H04N19/577 , H04N19/513 , G06N3/04 , G06N3/0454 , G06N3/08 , G06N7/023
摘要： Various embodiments provide an apparatus, a method, and a computer program product. The apparatus includes at least one processor; and at least one non-transitory memory including computer program code; wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to perform: train or finetune one or more additional parameters of at least one neural network (NN) or a portion of the at least one NN, wherein the one or more additional parameters comprise one or more scaling parameters; and encode or decode one or more media elements based on the at least one neural network or a portion of the at least one NN comprising the trained or finetuned one or more additional parameters.

16. 发明申请

WO2018172609A2 MOTION COMPENSATION IN VIDEO ENCODING AND DECODING 审中-公开
公开(公告)号：WO2018172609A2
公开(公告)日：2018-09-27
申请号：PCT/FI2018/050193
申请日：2018-03-16
申请人： NOKIA TECHNOLOGIES OY
发明人： LAINEMA, Jani
CPC分类号： H04N19/52 , H04N19/557 , H04N19/56 , H04N19/57 , H04N19/577
摘要： There are disclosed various methods, apparatuses and computer program products for video encoding and decoding. In some embodiments for encoding.In some embodiments for decoding or encoding a block of a current picture a first motion vector predictor candidate pointing to a first reference block in a first reference picture and a second motion vector predictor candidate pointing to a second reference block in a second reference picture are obtained. A difference vector is added to the first motion vector predictor candidate to obtain a modified first motion vector predictor candidate and subtracted from the second motion vector predictor candidate to obtain a modified second motion vector predictor candidate. A cost estimate is determined for bi-directional motion prediction on the basis of the modified first motion vector predictor candidate and the modified second motion vector predictor candidate. The addition, subtraction and cost estimate determination may be repeated to obtain a set of modified first motion vector predictor candidates, a set of modified second motion vector predictor candidates and a set of cost estimates. A first motion vector predictor is selected from the set of modified first motion vector predictor candidates and a second motion vector predictor is selected from the set of modified second motion vector predictor candidates on the basis of the set of cost estimates.

17. 发明申请

WO2018002425A3 AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING 审中-公开
公开(公告)号：WO2018002425A3
公开(公告)日：2018-01-04
申请号：PCT/FI2017/050448
申请日：2017-06-15
申请人： NOKIA TECHNOLOGIES OY
发明人： HANNUKSELA, Miska , LAINEMA, Jani , AMINLOU, Alireza , GHAZNAVI YOUVALARI, Ramin
IPC分类号： H04N19/167 , H04N19/59 , G06T3/40 , H04N5/232 , G03B37/00
摘要： A method for video decoding comprising: decoding, from a bitstream, a first encoded region of a first equirectangular picture into a first preliminary reconstructed region (760); forming a first reconstructed region from the first preliminary reconstructed region, wherein the forming comprises downsampling and rearranging the first preliminary reconstructed region, wherein the rearranging comprises relocating and one or both of rotating and mirroring (762); and decoding at least a second region, wherein the first reconstructed region is used as a reference for prediction in decoding the at least second region (764) and the second region either belongs to a second picture and is spatially collocated with the first reconstructed region or belongs to the first picture.

18. 发明申请

WO2017064370A1 VIDEO CODING WITH HELPER DATA FOR SPATIAL INTRA-PREDICTION 审中-公开
标题翻译：视频编码与帮助数据的空间预测
公开(公告)号：WO2017064370A1
公开(公告)日：2017-04-20
申请号：PCT/FI2016/050715
申请日：2016-10-13
申请人： NOKIA TECHNOLOGIES OY
发明人： LAINEMA, Jani , AMINLOU, Alireza
IPC分类号： H04N19/593 , H04N19/159 , H04N19/186 , H04N19/176
CPC分类号： H04N19/159 , H04N19/44 , H04N19/593
摘要： For decoding a video stream, an encoded video stream is received with an indication of a prediction mode and an indication of one or more prediction helper values. While decoding this encoded video stream, a predicted value is calculated for each of at least one sample based on the indicated prediction mode and on the prediction helper value(s). The decoded video stream, incorporating each of the at least one samples as decoded using the respective calculated predicted value,is then output to at least one of a computer readable memory and a graphical display. An optional step function can be utilized to aid the helper values and enable non-linear prediction values in a given row or column of a prediction unit. At the encoder side the encoder decides the prediction helper values that it uses to encode the video stream that is stored or transmitted to the decoder.
摘要翻译：为了解码视频流，以预测模式的指示和一个或多个预测帮助值的指示来接收编码的视频流。在对该编码视频流进行解码的同时，基于所指示的预测模式和预测帮助值来为至少一个样本中的每个样本计算预测值。然后将解码的视频流输出到计算机可读存储器和图形显示器中的至少一个，所述解码的视频流将包括使用各自计算出的预测值解码的至少一个样本中的每一个样本。可以使用可选的阶跃函数来辅助辅助值并且在预测单元的给定行或列中启用非线性预测值。在编码器端，编码器决定用于编码存储或传输到解码器的视频流的预测辅助值。

19. 发明申请

WO2016151196A1 AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING 审中-公开
标题翻译：一种视频编码和解码的装置，方法和计算机程序
公开(公告)号：WO2016151196A1
公开(公告)日：2016-09-29
申请号：PCT/FI2016/050178
申请日：2016-03-22
申请人： NOKIA TECHNOLOGIES OY
发明人： RIDGE, Justin , HANNUKSELA, Miska , LAINEMA, Jani
IPC分类号： H04N19/85 , G06T5/00 , H04N19/70 , H04N19/90
CPC分类号： H04N19/98 , H04N19/186 , H04N19/30 , H04N19/46
摘要： A method comprising: obtaining a video bitstream comprising a high dynamic range (HDR) video representation; obtaining one or more tone mapping operators and an indication of at least one tone mapping operator to be applied; and modifying the HDR video representation into a low dynamic range (LDR) video representation using said at least one tone mapping operator determined by said indication.
摘要翻译：一种方法，包括：获得包括高动态范围（HDR）视频表示的视频比特流; 获得一个或多个音调映射运算符和要应用的至少一个音调映射运算符的指示; 以及使用由所述指示确定的所述至少一个音调映射运算符将所述HDR视频表示修改为低动态范围（LDR）视频表示。

20. 发明申请

WO2015140402A2 METHOD AND TECHNICAL EQUIPMENT FOR VIDEO ENCODING AND DECODING 审中-公开
标题翻译：视频编码和解码的方法和技术设备
公开(公告)号：WO2015140402A2
公开(公告)日：2015-09-24
申请号：PCT/FI2015/050172
申请日：2015-03-16
申请人： NOKIA TECHNOLOGIES OY
发明人： BUGDAYCI, Done , LAINEMA, Jani , UGUR, Kemal , HANNUKSELA, Miska
IPC分类号： H04N19/186
CPC分类号： H04N19/136 , H04N19/105 , H04N19/124 , H04N19/159 , H04N19/182 , H04N19/187 , H04N19/423 , H04N19/94
摘要： There are disclosed various methods, apparatuses and computer program products for video encoding/decoding. In some embodiments the method comprises signalling a long-term palette information, where the long-term palette information comprises at least information on the color values for each entry in the long-term palette; generating a palette that is used for coding a coding unit by either selecting at least one color value from a long-term palette or by separately signaling at least one color value, or performing both. Alternatively the method comprises constructing a long-term palette during an encoding process or a decoding process; and updating the long-term palette dynamically after coding a coding unit, and constructing a palette used for encoding or decoding a coding unit using information from the long-term palette.
摘要翻译：公开了用于视频编码/解码的各种方法，设备和计算机程序产品。在一些实施例中，该方法包括发信号通知长期调色板信息，其中长期调色板信息至少包括关于长期调色板中的每个条目的色彩值的信息; 通过从长期调色板选择至少一个颜色值或者通过单独发信号通知至少一个颜色值或执行这两者来生成用于编码编码单元的调色板。或者，该方法包括在编码过程或解码过程期间构建长期调色板; 以及在编码单元编码之后动态地更新长期调色板，并且使用来自长期调色板的信息构造用于对编码单元进行编码或解码的调色板。

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