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公开(公告)号：US20220116597A1
公开(公告)日：2022-04-14
申请号：US17556180
申请日：2021-12-20
IPC分类号： H04N19/117 , H04N19/176 , H04N19/186 , H04N19/182 , H04N19/132 , H04N19/136
摘要： A filter, to an encoder and a decoder using the filter, to a filtering method and a corresponding program, as well as to encoding and decoding using the filtering method or the filter. The method includes obtaining of an extended reconstructed block by extending the current reconstructed block to include at least padding samples from the current reconstructed block. After padding, a current pixel of the extended reconstructed block and its neighboring pixels are loaded into a linear buffer and transformed with a one-dimensional (1D) transform. The method is performed in frequency domain using a look-up table and the filtered pixels are transformed back.
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公开(公告)号：US11228788B2
公开(公告)日：2022-01-18
申请号：US15931341
申请日：2020-05-13
IPC分类号： H04N19/00 , H04N19/82 , H04N19/117 , H04N19/124 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/51
摘要： The disclosure relates to an in-loop filter apparatus for video coding, which is configured for processing a reconstructed frame corresponding to a current frame for generation of a filtered reconstructed frame, wherein the reconstructed frame comprises a plurality of pixels, each pixel being associated with a pixel value. The in-loop filter apparatus comprises a processing unit configured to: partition the reconstructed frame into a plurality of overlapping and/or non-overlapping 2D pixel blocks; generate for each 2D pixel block a 2D spectrum by applying a 2D transform to the 2D pixel block, wherein the 2D spectrum comprises a plurality of spectral components; generate for each 2D pixel block a filtered 2D spectrum by multiplying each spectral component with a respective gain coefficient, wherein the respective gain coefficient depends on the respective spectral component and/or one or more neighboring spectral components of the respective spectral component and one or more filtering parameters; generate for each 2D pixel block a filtered 2D pixel block by applying an inverse 2D transform to the filtered 2D spectrum; and generate the filtered reconstructed frame on the basis of the plurality of filtered 2D pixel blocks.
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公开(公告)号：US20160316211A1
公开(公告)日：2016-10-27
申请号：US15199157
申请日：2016-06-30
IPC分类号： H04N19/174 , H04N19/172 , H04N19/44 , H04N19/46 , H04N19/50
CPC分类号： H04N19/174 , H04N19/172 , H04N19/44 , H04N19/46 , H04N19/50 , H04N19/65
摘要： A decoding method which includes determining a first to-be-decoded information group in a to-be-decoded bitstream, where the first to-be-decoded information group includes data information, attribute information, and location information of the first to-be-decoded information group, determining a reference information group set in a case in which the attribute information represents that the first to-be-decoded information group is a redundant information group, and discarding the first to-be-decoded information group when location information of at least one reference information group in the reference information group set is same as the location information of the first to-be-decoded information group, or parsing the data information when location information of all reference information groups in the reference information group set is different from the location information of the first to-be-decoded information group.
摘要翻译： 一种解码方法，包括确定要解码的比特流中的第一待解码信息组，其中第一待解码信息组包括数据信息，属性信息和第一被解码信息组的位置信息 - 确定在属性信息表示第一待解码信息组是冗余信息组的情况下设置的参考信息组，以及在位置信息时丢弃第一待解码信息组 参考信息组集合中的至少一个参考信息组与第一待解码信息组的位置信息相同，或者当参考信息组集合中的所有参考信息组的位置信息为 不同于第一待解码信息组的位置信息。
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公开(公告)号：US12075035B2
公开(公告)日：2024-08-27
申请号：US17556180
申请日：2021-12-20
IPC分类号： H04N19/117 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/186
CPC分类号： H04N19/117 , H04N19/132 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/186
摘要： A filter, to an encoder and a decoder using the filter, to a filtering method and a corresponding program, as well as to encoding and decoding using the filtering method or the filter. The method includes obtaining of an extended reconstructed block by extending the current reconstructed block to include at least padding samples from the current reconstructed block. After padding, a current pixel of the extended reconstructed block and its neighboring pixels are loaded into a linear buffer and transformed with a one-dimensional (1D) transform. The method is performed in frequency domain using a look-up table and the filtered pixels are transformed back.
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公开(公告)号：US20230262243A1
公开(公告)日：2023-08-17
申请号：US18304214
申请日：2023-04-20
发明人： Sergey Yurievich Ikonin , Alexander Alexandrovich Karabutov , Mikhail Vyacheslavovich Sosulnikov , Victor Alexeevich Stepin , Elena Alexandrovna Alshina
IPC分类号： H04N19/42 , H04N19/167 , H04N19/70 , H04N19/136 , H04N19/154 , H04N19/60 , H04N19/13 , H04N19/17 , H04N19/184
CPC分类号： H04N19/42 , H04N19/167 , H04N19/70 , H04N19/136 , H04N19/154 , H04N19/60 , H04N19/13 , H04N19/17 , H04N19/184
摘要： The present disclosure relates to efficient signaling of feature map information for a system employing a neural network. In particular, at the decoder side, a presence indicator is obtained based on information parsed from a bitstream. Based on the value of the obtained presence indicator, further data related to a feature map region are parsed or the parsing is bypassed. The presence indicator may be, for instance, a region presence indicator indicating whether feature map data is included in the bitstream or may be a side information presence indicator indicating whether a side information related to the feature map data is included in the bitstream. Similarly, an encoding method, as well as encoding and decoding devices, are provided. Accordingly, feature map data may be processed more efficiently, by reducing decoding complexity, and the amount of transmitted data can be reduced by applying the bypassing.
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公开(公告)号：US11706412B2
公开(公告)日：2023-07-18
申请号：US17139913
申请日：2020-12-31
发明人： Victor Alexeevich Stepin , Sergey Yurievich Ikonin , Roman Igorevich Chernyak , Jianle Chen , Dmitry Yurievich Kuryshev
IPC分类号： H04N19/117 , H04N19/124 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/61 , H04N19/82 , H04N19/105 , H04N19/129 , H04N19/60 , G06F1/03 , H04N19/80
CPC分类号： H04N19/117 , G06F1/03 , H04N19/105 , H04N19/124 , H04N19/129 , H04N19/132 , H04N19/159 , H04N19/176 , H04N19/60 , H04N19/61 , H04N19/80 , H04N19/82
摘要： A filter for video coding is configured for processing a block for generation of a filtered block, where the block comprises a plurality of pixels. The filter includes one or more processor configured to: scan a current pixel of the block and its neighboring pixels of the current pixel according to a predefined scan template, obtain spectrum components by performing transform for the current pixel and its neighboring pixels, obtain filtered spectrum components based on a filtering parameter and the spectrum components, obtain filtered pixels by performing inverse transform for the filtered spectrum components, and generate a filtered block based on the filtered pixels.
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公开(公告)号：US10834416B2
公开(公告)日：2020-11-10
申请号：US15934043
申请日：2018-03-23
IPC分类号： H04N19/51 , H04N19/11 , H04N19/82 , H04N19/50 , H04N19/523 , H04N19/117 , H04N19/176 , H04N19/44 , G06T5/00
摘要： The present disclosure relates to a video coder for predictive coding a video stream of subsequent frames according to motion compensation into an encoded video bit stream, comprising a frame buffer adapted to store at least one reference frame of the video stream, the reference frame being different from a current frame of the video stream, an inter prediction unit adapted to generate a prediction block of a current block of the current frame from a reference block of the reference frame, and an adaptive sharpening filter configured to adaptively filter the prediction block.
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公开(公告)号：US11991354B2
公开(公告)日：2024-05-21
申请号：US17561087
申请日：2021-12-23
IPC分类号： H04N19/117 , H04N19/136 , H04N19/172 , H04N19/196 , H04N19/82
CPC分类号： H04N19/117 , H04N19/136 , H04N19/172 , H04N19/196 , H04N19/82
摘要： A method for in-loop filtering by performing adaptive loop filtering on a reconstructed frame of a video stream, implemented by an encoding device or a decoding device, the method comprising forming differences between a pixel of the reconstructed frame and neighboring pixels in a connected area of the pixel, clipping the differences according to respective clipping levels, forming a weighted sum of the clipped differences, and adding the weighted sum to the pixel to determine a filtered pixel, wherein the respective clipping levels are chosen from a same set of clipping levels for the luma and chroma components.
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公开(公告)号：US11265582B2
公开(公告)日：2022-03-01
申请号：US15931341
申请日：2020-05-13
IPC分类号： H04N19/00 , H04N19/82 , H04N19/117 , H04N19/124 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/51
摘要： The disclosure relates to an in-loop filter apparatus for video coding, which is configured for processing a reconstructed frame corresponding to a current frame for generation of a filtered reconstructed frame, wherein the reconstructed frame comprises a plurality of pixels, each pixel being associated with a pixel value. The in-loop filter apparatus comprises a processing unit configured to: partition the reconstructed frame into a plurality of overlapping and/or non-overlapping 2D pixel blocks; generate for each 2D pixel block a 2D spectrum by applying a 2D transform to the 2D pixel block, wherein the 2D spectrum comprises a plurality of spectral components; generate for each 2D pixel block a filtered 2D spectrum by multiplying each spectral component with a respective gain coefficient, wherein the respective gain coefficient depends on the respective spectral component and/or one or more neighboring spectral components of the respective spectral component and one or more filtering parameters; generate for each 2D pixel block a filtered 2D pixel block by applying an inverse 2D transform to the filtered 2D spectrum; and generate the filtered reconstructed frame on the basis of the plurality of filtered 2D pixel blocks.
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公开(公告)号：US10863205B2
公开(公告)日：2020-12-08
申请号：US15934628
申请日：2018-03-23
IPC分类号： H04N19/82 , H04N19/13 , H04N19/33 , H04N19/14 , H04N19/50 , H04N19/117 , H04N19/176 , H04N19/44 , H04N19/51 , G06T5/00
摘要： A video coder is provided for predictive coding, into an encoded video bit stream, of an original block of an original frame based on a prediction block obtained from a reference frame, comprising a buffer configured to store the original block, a buffer configured to store the prediction block, and an adaptive sharpening filter configured to apply a spatial adaptive sharpening filtering to the prediction block.
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