公开(公告)号：US20240304191A1

公开(公告)日：2024-09-12

申请号：US18181668

申请日：2023-03-10

申请人： QUALCOMM Incorporated

发明人： Anantharaman Balasubramanian ,  Liangping Ma

IPC分类号： G10L19/005 ,  G06V20/40 ,  G06V20/70 ,  G10L15/18 ,  G10L15/197 ,  G10L19/16 ,  G10L25/57 ,  H04N19/89

CPC分类号： G10L19/005 ,  G06V20/41 ,  G06V20/70 ,  G10L15/1815 ,  G10L15/197 ,  G10L19/167 ,  G10L25/57 ,  H04N19/89

摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a media server may set up a communication session to support an extended reality (XR) application. The UE may receive an indication of a semantic model to use for processing data packets to be received at the UE. The semantic model is determinative of incomplete audio data based on a meaning of known audio data. The UE may receive a set of data packets that encodes a first portion of a sequence of audio data and generate, using the semantic model and one or more data packets of the set of data packets, a second portion of the sequence of audio data. The second portion is in addition to the first portion.

公开(公告)号：US20240292029A1

公开(公告)日：2024-08-29

申请号：US18652375

申请日：2024-05-01

申请人： DOLBY LABORATORIES LICENSING CORPORATION

发明人： Alexandros TOURAPIS ,  Athanasios LEONTARIS ,  Peshala V. PAHALAWATTA ,  Kevin J. STEC

IPC分类号： H04N19/597 ,  H04N7/01 ,  H04N13/10 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/40 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86 ,  H04N19/89 ,  H04N19/895 ,  H04N21/434

CPC分类号： H04N19/597 ,  H04N7/0102 ,  H04N7/0117 ,  H04N7/0135 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/865 ,  H04N19/895 ,  H04N21/4347 ,  H04N13/10 ,  H04N19/40 ,  H04N19/86 ,  H04N19/89

摘要： An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.

公开(公告)号：US12058371B2

公开(公告)日：2024-08-06

申请号：US18466954

申请日：2023-09-14

申请人： DOLBY LABORATORIES LICENSING CORPORATION

发明人： Alexandros Tourapis ,  Athanasios Leontaris ,  Peshala V. Pahalawatta ,  Kevin J. Stec

IPC分类号： H04N19/597 ,  H04N7/01 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86 ,  H04N19/895 ,  H04N21/434 ,  H04N13/10 ,  H04N19/40 ,  H04N19/89

CPC分类号： H04N19/597 ,  H04N7/0102 ,  H04N7/0117 ,  H04N7/0135 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/865 ,  H04N19/895 ,  H04N21/4347 ,  H04N13/10 ,  H04N19/40 ,  H04N19/86 ,  H04N19/89

摘要： An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.

公开(公告)号：US12034972B2

公开(公告)日：2024-07-09

申请号：US18466961

申请日：2023-09-14

申请人： DOLBY LABORATORIES LICENSING CORPORATION

发明人： Alexandros Tourapis ,  Athanasios Leontaris ,  Peshala V. Pahalawatta ,  Kevin J. Stec

IPC分类号： H04N19/597 ,  H04N7/01 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/86 ,  H04N19/895 ,  H04N21/434 ,  H04N13/10 ,  H04N19/40 ,  H04N19/89

CPC分类号： H04N19/597 ,  H04N7/0102 ,  H04N7/0117 ,  H04N7/0135 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/154 ,  H04N19/17 ,  H04N19/172 ,  H04N19/176 ,  H04N19/423 ,  H04N19/44 ,  H04N19/587 ,  H04N19/70 ,  H04N19/80 ,  H04N19/85 ,  H04N19/865 ,  H04N19/895 ,  H04N21/4347 ,  H04N13/10 ,  H04N19/40 ,  H04N19/86 ,  H04N19/89

摘要： An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.

公开(公告)号：US20240163488A1

公开(公告)日：2024-05-16

申请号：US18419736

申请日：2024-01-23

申请人： Beijing Dajia Internet Information Technology Co. Ltd.

发明人： Ning Yan ,  Wei Chen ,  Xiaoyu Xiu ,  Che-Wei Kuo ,  Yi-Wen Chen ,  Hong-Jheng Jhu ,  Xianglin Wang ,  Bing Yu

IPC分类号： H04N19/82 ,  H04N19/124 ,  H04N19/89

CPC分类号： H04N19/82 ,  H04N19/124 ,  H04N19/89

摘要： Implementations of the disclosure provide video processing apparatuses and methods. The method receives, by a video processor, a video block of a video for in-loop filtering. The method then performs a wavelet-domain CNN filtering on video data of at least a part of the video block, by performing, by the video processor, a wavelet transform on the video data to obtain data in a wavelet domain comprising a plurality of wavelet subbands; filtering, by the video processor, the data in the wavelet domain by applying respective CNN models on the plurality of wavelet subbands, where the CNN models for the plurality of wavelet subbands are trained in the wavelet domain; and performing, by the video processor, an inverse wavelet transform on the filtered data to obtain reconstructed video data.

公开(公告)号：US20230362400A1

公开(公告)日：2023-11-09

申请号：US18219221

申请日：2023-07-07

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Rickard Sjöberg ,  Jonatan Samuelsson

IPC分类号： H04N19/50 ,  H04N19/70 ,  H04N19/46 ,  H04N19/89 ,  H04N19/58 ,  H04N19/44

CPC分类号： H04N19/50 ,  H04N19/70 ,  H04N19/46 ,  H04N19/89 ,  H04N19/58 ,  H04N19/44

摘要： According to an embodiment, an encoder is configured to ensure that for each long-term picture of a RPS of a picture i the value of a flag referred to as delta_poc_msb_present_flag[i] is equal to 1 when there are at least two reference pictures in a decoded picture buffer with lsb's of the POC referred to as pic_order_cnt_lsb equal to the lsb's of the respective long-term picture i denoted POC lsbLt[i]. When the delta_poc_msb_present_flag is equal to 1, the long-term picture is indicated by the full POC.

公开(公告)号：US11736711B2

公开(公告)日：2023-08-22

申请号：US17856511

申请日：2022-07-01

申请人： Telefonaktiebolaget LM Ericsson (publ)

发明人： Rickard Sjöberg ,  Jonatan Samuelsson

IPC分类号： H04N19/70 ,  H04N19/58 ,  H04N19/44 ,  H04N19/50 ,  H04N19/46 ,  H04N19/89

CPC分类号： H04N19/50 ,  H04N19/44 ,  H04N19/46 ,  H04N19/58 ,  H04N19/70 ,  H04N19/89

摘要： According to an embodiment, an encoder is configured to ensure that for each long-term picture of a RPS of a picture i the value of a flag referred to as delta_poc_msb_present_flag[i] is equal to 1 when there are at least two reference pictures in a decoded picture buffer with lsb's of the POC referred to as pic_order_cnt_lsb equal to the lsb's of the respective long-term picture i denoted POC lsbLt[i]. When the delta_poc_msb_present_flag is equal to 1, the long-term picture is indicated by the full POC.

公开(公告)号：US20230254495A1

公开(公告)日：2023-08-10

申请号：US18188754

申请日：2023-03-23

申请人： GE VIDEO COMPRESSION, LLC

发明人： Karsten SUEHRING ,  Thomas SCHIERL ,  Detlev MARPE ,  Robert SKUPIN ,  Yago SANCHEZ DE LA FUENTE ,  Gerhard TECH

IPC分类号： H04N19/30 ,  H04N19/65 ,  H04N19/70 ,  H04L69/324 ,  H04N19/187 ,  H04N19/423 ,  H04N19/44 ,  H04N19/50 ,  H04N19/85 ,  H04N19/119 ,  H04N19/166 ,  H04N19/174 ,  H04N19/593 ,  H04N19/66 ,  H04N19/89 ,  H04N19/91 ,  H04N19/33

CPC分类号： H04N19/30 ,  H04N19/65 ,  H04N19/70 ,  H04L69/324 ,  H04N19/187 ,  H04N19/423 ,  H04N19/44 ,  H04N19/50 ,  H04N19/85 ,  H04N19/119 ,  H04N19/166 ,  H04N19/174 ,  H04N19/593 ,  H04N19/66 ,  H04N19/89 ,  H04N19/91 ,  H04N19/33

摘要： A signaling of the layer ID is described which each of the packets of a multi-layered video signal is associated with. In particular, an efficient way of signaling this layer association is achieved, with nevertheless maintaining the backward compatibility with codecs according to which a certain value of the base layer-ID field is restricted to be non-extendable such as base layer-ID value 0 in the base layer-ID field. Instead of circumventing this restriction specifically with respect to this non-extendable base layer-ID value, the layer-ID of portions of the multi-layer data stream is signaled in an extendable manner by sub-dividing the base layer-ID field into a first sub-field and a second sub-field: whenever the first sub-field of the base layer-ID field fulfills a predetermined criterion, an extension layer-ID field is provided, and if the first sub-field of the base layer-ID field does not fulfill the predetermined criterion, the extension layer-ID field is omitted.

公开(公告)号：US11706456B2

公开(公告)日：2023-07-18

申请号：US17887620

申请日：2022-08-15

申请人： Agora Lab, Inc.

发明人： Rui Wang ,  Liang Si ,  Bifeng He

IPC分类号： H04N7/12 ,  H04N19/67 ,  H04L65/80 ,  H04N19/89 ,  H04N19/169 ,  H04L65/70

CPC分类号： H04N19/67 ,  H04L65/70 ,  H04L65/80 ,  H04N19/188 ,  H04N19/89

摘要： A reference-order AL-FEC system for recovering network video data packet loss during real-time video communication includes a packetizer, a reference-order AL-FEC encoder, a reference-order AL-FEC decoder and a depacketizer. The packetizer constructs source symbols from source packets of a current frame. The encoder generates a repair symbol from the source symbols of the current frame and other reference frames based on the reference-order, not time-order, between the frames within an encoding window. The encoder also generates a repair packet based on the repair symbol. The decoder recovers a lost source symbol based on the source symbols of the frames of the encoding window and the repair symbol by decoding the repair packet. The decoding is achieved by solving a linear system of the repair symbol.

公开(公告)号：US20230224495A1

公开(公告)日：2023-07-13

申请号：US18175111

申请日：2023-02-27

申请人： DOLBY LABORATORIES LICENSING CORPORATION

发明人： Alexandros TOURAPIS ,  Athanasios LEONTARIS ,  Peshala V. PAHALAWATTA ,  Kevin J. STEC

IPC分类号： H04N19/597 ,  H04N21/434 ,  H04N13/172 ,  H04N19/154 ,  H04N19/895 ,  H04N19/86 ,  H04N7/01 ,  H04N13/161 ,  H04N19/587 ,  H04N19/176 ,  H04N19/17 ,  H04N19/44 ,  H04N19/172 ,  H04N19/85 ,  H04N19/423 ,  H04N19/70 ,  H04N19/80 ,  H04N13/178 ,  H04N13/218 ,  H04N19/89 ,  H04N19/40 ,  H04N13/10

CPC分类号： H04N19/597 ,  H04N21/4347 ,  H04N13/172 ,  H04N19/154 ,  H04N19/895 ,  H04N19/865 ,  H04N7/0102 ,  H04N13/161 ,  H04N19/587 ,  H04N19/176 ,  H04N19/17 ,  H04N19/44 ,  H04N19/172 ,  H04N19/85 ,  H04N19/423 ,  H04N19/70 ,  H04N7/0135 ,  H04N19/80 ,  H04N7/0117 ,  H04N13/178 ,  H04N13/218 ,  H04N19/89 ,  H04N19/40 ,  H04N13/10 ,  H04N19/86

摘要： An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.