公开(公告)号：EP4422185A3

公开(公告)日：2024-11-06

申请号：EP24180959.9

申请日：2021-10-20

申请人： Huawei Technologies Co., Ltd.

发明人： KARABUTOV, Alexander Alexandrovich ,  SOSULNIKOV, Mikhail Vyacheslavovich ,  STEPIN, Victor Alexeevich ,  ALSHINA, Elena Alexandrovna ,  IKONIN, Sergey Yurievich

IPC分类号： H04N19/70 ,  H04N19/176 ,  H04N19/36 ,  H04N19/46 ,  H04N19/59 ,  H04N19/96

摘要： The present disclosure relates to an 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, the feature map data may be processed more efficiently, including reduction of decoding complexity as well as reduction of the amount of transmitted data by applying the bypassing.

公开(公告)号：EP3942814B1

公开(公告)日：2024-05-01

申请号：EP20715152.3

申请日：2020-03-18

IPC分类号： H04N19/36 ,  H04N19/46 ,  H04N19/59 ,  H04N19/80 ,  H04N19/33

CPC分类号： H04N19/33 ,  H04N19/36 ,  H04N19/46 ,  H04N19/80 ,  H04N19/59

公开(公告)号：EP3942816A1

公开(公告)日：2022-01-26

申请号：EP20715121.8

申请日：2020-03-10

申请人： V-Nova International Limited

发明人： MEARDI, Guido

IPC分类号： H04N19/33 ,  H04N19/36 ,  H04N19/59 ,  H04N19/80 ,  H04N19/46

公开(公告)号：EP3903481A1

公开(公告)日：2021-11-03

申请号：EP19905545.0

申请日：2019-12-26

申请人： Tencent America LLC

发明人： CHOI, Byeongdoo ,  WENGER, Stephan ,  LIU, Shan

IPC分类号： H04N19/103 ,  H04N19/115 ,  H04N19/36 ,  H04N19/44

公开(公告)号：EP3162067B1

公开(公告)日：2021-03-31

申请号：EP15729836.5

申请日：2015-06-17

发明人： BOITARD, Ronan ,  POULI, Tania ,  THOREAU, Dominique ,  COZOT, Rémi ,  BOUATOUCH, Kadi

IPC分类号： H04N19/615 ,  H04N19/36 ,  H04N19/117 ,  H04N19/14 ,  H04N19/187 ,  H04N19/169 ,  H04N19/86 ,  H04N19/186

公开(公告)号：EP3688989A1

公开(公告)日：2020-08-05

申请号：EP18793301.5

申请日：2018-09-24

申请人： Advanced Micro Devices, Inc.

发明人： VU, Ngoc Vinh ,  LYNCH, Adam William ,  DI CERA, DarrenRae ,  RYAN, Stephen Mark

IPC分类号： H04N19/187 ,  H04N19/30 ,  H04N19/29 ,  H04N19/36 ,  H04N19/66 ,  H04N19/67 ,  H04L1/00

公开(公告)号：EP3085088B1

公开(公告)日：2020-04-22

申请号：EP14820807.7

申请日：2014-12-15

申请人： InterDigital VC Holdings, Inc.

发明人： LASSERE, Sebastien ,  LELEANNEC, Fabrice ,  TOUZE, David

IPC分类号： H04N19/124 ,  H04N19/154 ,  H04N19/164 ,  H04N19/33 ,  H04N19/36

公开(公告)号：EP3485638A1

公开(公告)日：2019-05-22

申请号：EP17742949.5

申请日：2017-07-17

申请人： Gurulogic Microsystems OY

发明人： KALEVO, Ossi

IPC分类号： H04N19/147 ,  H04N19/46 ,  H04N19/12 ,  H04N19/124 ,  H04N19/17 ,  H04N19/167 ,  H04N19/36

公开(公告)号：EP3308541A1

公开(公告)日：2018-04-18

申请号：EP16748411.2

申请日：2016-07-22

申请人： ARRIS Enterprises LLC

发明人： MINOO, Koohyar ,  GU, Zhouye ,  BAYLON, David M. ,  LUTHRA, Ajay

IPC分类号： H04N19/172 ,  H04N19/46 ,  H04N19/117 ,  H04N19/136 ,  H04N19/36

CPC分类号： H04N19/124 ,  H04N19/117 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/179 ,  H04N19/182 ,  H04N19/186 ,  H04N19/36 ,  H04N19/46

摘要： A method of encoding a digital video data applies adaptive pre-processing to data representing high dynamic range (HDR) and/or wide color gamut (WCG) image data prior to encoding and complementary post-processing to the data after decoding in order to allow at least partial reproduction of the HDR and/or WCG data. The example methods apply one or more color space conversions, and a perceptual transfer functions to the data prior to quantization. The example methods apply inverse perceptual transfer functions and inverse color space conversions after decoding to recover the HDR and/or WCG data. The transfer functions are adaptive so that different transfer functions may be applied to video data sets including different groups of frames, frames or processing windows in a single frame. Information on the data set and information on the applied transfer function is passed as metadata from the encoder to the decoder.

公开(公告)号：EP3304903A1

公开(公告)日：2018-04-11

申请号：EP16730657.0

申请日：2016-06-08

申请人： Qualcomm Incorporated

发明人： RAMASUBRAMONIAN, Adarsh Krishnan ,  LI, Xiang ,  SOLE ROJALS, Joel ,  KARCZEWICZ, Marta ,  LEE, Sungwon ,  RUSANOVSKYY, Dmytro ,  BUGDAYCI SANSLI, Done

IPC分类号： H04N19/30 ,  H04N19/186 ,  H04N19/36 ,  H04N19/103 ,  H04N19/50 ,  H04N19/176

摘要： Techniques are described for identifying and reducing the incidence of artifacts in video using color gamut scalability (CGS) parameters and tables in scalable video coding (SVC). Derivation of CGS mapping tables are performed for each partition of pixel values in a color space. The pixel value domain is split into partitions and each is optimized independently. Color prediction techniques for CGS may be used by video encoders and/or video decoders to generate inter-layer reference pictures when a color gamut for a lower layer of video data is different than a color gamut for a higher layer of the video data. When mapped values are used as inter-layer predication references for the enhancement layer blocks, artifacts may appear in some frames of the sequences. A video encoder may identify blocks that potentially contain these artifacts and disable inter-layer prediction in those identified blocks.