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公开(公告)号:WO2022042906A1
公开(公告)日:2022-03-03
申请号:PCT/EP2021/068070
申请日:2021-06-30
Applicant: BAREWAYS GMBH
Inventor: KLEMENT, Sascha , HARTMANN, Florian , MATLAGE, Stefan
Abstract: The invention relates to a method of encoding image data representing a geographical line, GL, or its surroundings, and a data processing system being configured to perform the encoding. The method comprises applying a data compression process to reduce the spatial resolution of a given image represented by the image data. Specifically, the image may form an imagery layer of an imagery stack comprising various imagery layers, each imagery layer representing an individual image, e.g. of a same geographical region. The data compression process comprises: generating two or more sublayers of the image by resampling at least one region of the image at a respective lower spatial resolution than its original spatial resolution, while maintaining or resampling the spatial resolution of at least one other region of the image such that, when the sublayers are overlapped to jointly define a combined multi-resolution representation of the image, the average resolution of the combined multi-resolution representation is lower than the original resolution of the image..
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公开(公告)号:WO2022006346A1
公开(公告)日:2022-01-06
申请号:PCT/US2021/040004
申请日:2021-06-30
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor: ATKINS, Robin , SU, Guan-Ming , LAKSHMINARAYANAN, Gopi
IPC: H04N21/2343 , H04N21/235 , H04N21/63 , H04N1/64 , H04N21/234327 , H04N21/2358 , H04N21/631
Abstract: A method for distributing High Dynamic Range (HDR) content to playback devices for displaying images where the HDR content is encoded to an HDR bitstream and the HDR bitstream is subsequently decoded by a playback device. The HDR bitstream contains auxiliary metadata packets that are based upon the processing capability of the playback device.
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公开(公告)号:WO2021228821A1
公开(公告)日:2021-11-18
申请号:PCT/EP2021/062429
申请日:2021-05-11
Applicant: SEENTHIS AB
Inventor: ANDERSSON, Einar
Abstract: Disclosed herein is a method for handling an at least partially transparent digital image (1), comprising the steps of: - Splitting (S01) the at least partially transparent digital image (1) into two files, a first file (2) comprising red, green and blue, RGB, colour data for each pixel and a second file (4) comprising alpha channel data for each pixel for determining transparency; - Extracting and converting (S02) each of the first file (2) and the second file (4) into progressive Joint Photographic Experts Group, JPEG, format files; and - Combining (S03) the converted first file and converted second file in a binary file (6) comprising a header, which comprises information for parsing and reading the binary file.
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公开(公告)号:WO2021061283A1
公开(公告)日:2021-04-01
申请号:PCT/US2020/045040
申请日:2020-08-05
Applicant: FUTUREWEI TECHNOLOGIES, INC.
Inventor: HENDRY, Fnu , WANG, Ye-Kui , CHEN, Jianle
Abstract: A method of decoding is provided. The method includes receiving a video bitstream including a picture unit (PU), where any decoding capability information (DCI) network abstraction layer (NAL) unit, video parameter set (VPS) NAL unit, sequence parameter set (SPS) NAL unit, or picture parameter set (PPS) NAL unit referred to by the PU precedes a picture header (PH) NAL unit of the PU and a first video coding layer (VCL) NAL unit of the PU; and decoding a coded picture from the PU to obtain a decoded picture.
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公开(公告)号:WO2021061281A1
公开(公告)日:2021-04-01
申请号:PCT/US2020/045037
申请日:2020-08-05
Applicant: FUTUREWEI TECHNOLOGIES, INC.
Inventor: HENDRY, Fnu , WANG, Ye-Kui , CHEN, Jianle
Abstract: A method of decoding is provided. The method includes receiving a video bitstream including a picture unit (PU), the PU including a picture header (PH) network abstraction layer (NAL) unit having a picture header NAL unit type (PH_NUT) and an associated video coding layer (VCL) NAL unit, the PH_NUT signifying that a layer identifier (ID) of the PH NAL unit is equal to a layer ID of the associated video coding layer (VCL) NAL unit and a temporal ID of the PH NAL unit is equal to a temporal ID of the PU; and decoding a coded picture from the PU to obtain a decoded picture.
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公开(公告)号:WO2020168520A1
公开(公告)日:2020-08-27
申请号:PCT/CN2019/075746
申请日:2019-02-21
Applicant: 深圳市大疆创新科技有限公司
Abstract: 一种编码器、编码系统和编码方法。该编码器包括:第一接口电路(71),用于从外部的存储器中读取预先生成的待编码图像的统计信息;码率控制电路(75),用于根据待编码图像的统计信息,确定待编码图像中的图像块的目标码率;第一编码电路(74),用于对图像块的码块进行tier-1编码,得到图像块的码流;第二编码电路(76),用于根据目标码率对图像块的码流进行tier-2编码,以截断图像块的码流。该系统预先计算待编码图像中的图像块的统计信息,并根据该统计信息截断图像块的码流,可以降低编码器对系统带宽的要求。
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公开(公告)号:WO2020122800A1
公开(公告)日:2020-06-18
申请号:PCT/SE2019/051266
申请日:2019-12-11
Applicant: MATERIALEYES AB
Inventor: UNGER, Jonas , MIANDJI, Ehsan , LARSSON, Per
IPC: H04N1/64
Abstract: The present disclosure relates to a computer implemented method for representing a data set comprising at least one n dimensional data element representing visual information, said method comprising obtaining (210) said data set, obtaining (220) a dictionary ensemble comprising a plurality of dictionaries each comprising at least one basis function (102), assigning (230) each at least one data element to a dictionary, wherein a set of basis functions represents an m dimensional transformation domain, transforming (240) the at least one data element with the corresponding dictionary of basis functions to the transformation domain wherein each data element is defined by an associated coefficient set, sparsifying (250) the coefficient sets, forming (260) the representation of the visual information comprising a coefficient data set and the corresponding dictionaries.
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公开(公告)号:WO2019230442A1
公开(公告)日:2019-12-05
申请号:PCT/JP2019/019641
申请日:2019-05-17
Applicant: ソニー株式会社
Abstract: 本開示は、マルチスペクトル画像データの処理の負荷の増大を抑制することができるようにする画像処理装置および方法に関する。 4以上の波長帯成分よりなるマルチスペクトル画像データを、固定の圧縮率で簡易符号化する。または、4以上の波長帯成分よりなるマルチスペクトル画像データが固定の圧縮率で簡易符号化された符号化データを、簡易復号する。本開示は、例えば、画像処理装置、画像符号化装置、画像復号装置、撮像素子、または撮像装置等に適用することができる。
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公开(公告)号:WO2018194643A1
公开(公告)日:2018-10-25
申请号:PCT/US2017/028790
申请日:2017-04-21
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor: MOROVIC, Jan , MOROVIC, Peter
Abstract: In an example, a method includes determining a plurality of print coverage vectors, each of the print coverage vectors specifying a common amount of a selected print agent. The method may further comprise determining a colorimetry provided by each of the print coverage vectors and dividing a range of colorimetries into partitions in a colorimetric space. For each of a plurality of the partitions, the method may include determining a characteristic of each print coverage vector resulting in a colorimetry within that partition and selecting a print coverage vector for that partition based on the determination. A color mapping resource may be determined based on the selected print coverage vectors.
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10.
公开(公告)号:WO2018102605A1
公开(公告)日:2018-06-07
申请号:PCT/US2017/064058
申请日:2017-11-30
Applicant: QUALCOMM INCORPORATED
IPC: H04N19/12 , H04N19/70 , H04N19/46 , H04N19/17 , H04N19/186 , H04N1/64 , H04N5/445 , H04N21/431
Abstract: Provided are methods, apparatus, and computer-readable medium for processing video data by a video coding system that implements ST 2094-10. Video data can include at least two video signals, which can be displayed at the same time in different display regions of a video frame. In various implementations, various techniques can be used to determine an association between a set of color volume parameters and a video signal, and this association can be encoded into a bitstream. Upon decoding of the bitstream, the set of color volume parameters associated with a particular video signal can be used to compress the color volume of the video signal into a range that can be displayed by a particular display device.
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