DK3840385T3 - Fremgangsmåde og indretning til bidirektionel interframe-forudsigelse - Google Patents
Fremgangsmåde og indretning til bidirektionel interframe-forudsigelse Download PDFInfo
- Publication number
- DK3840385T3 DK3840385T3 DK19858320.5T DK19858320T DK3840385T3 DK 3840385 T3 DK3840385 T3 DK 3840385T3 DK 19858320 T DK19858320 T DK 19858320T DK 3840385 T3 DK3840385 T3 DK 3840385T3
- Authority
- DK
- Denmark
- Prior art keywords
- interframe prediction
- directional
- directional interframe
- prediction
- interframe
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
- H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/46—Embedding additional information in the video signal during the compression process
- H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/513—Processing of motion vectors
- H04N19/517—Processing of motion vectors by encoding
- H04N19/52—Processing of motion vectors by encoding by predictive encoding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862726975P | 2018-09-04 | 2018-09-04 | |
| US201862727534P | 2018-09-05 | 2018-09-05 | |
| US201862734226P | 2018-09-20 | 2018-09-20 | |
| PCT/CN2019/104462 WO2020048502A1 (zh) | 2018-09-04 | 2019-09-04 | 一种双向帧间预测方法及装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK3840385T3 true DK3840385T3 (da) | 2025-06-10 |
Family
ID=69722245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK19858320.5T DK3840385T3 (da) | 2018-09-04 | 2019-09-04 | Fremgangsmåde og indretning til bidirektionel interframe-forudsigelse |
Country Status (20)
| Country | Link |
|---|---|
| US (4) | US11659161B2 (da) |
| EP (3) | EP3840386A4 (da) |
| JP (4) | JP7242861B2 (da) |
| KR (2) | KR102602827B1 (da) |
| CN (5) | CN112640468B (da) |
| AU (3) | AU2019335839B2 (da) |
| BR (2) | BR112021004060A2 (da) |
| CA (1) | CA3111112A1 (da) |
| DK (1) | DK3840385T3 (da) |
| ES (1) | ES3032692T3 (da) |
| FI (1) | FI3840385T3 (da) |
| HU (1) | HUE071453T2 (da) |
| MX (2) | MX2021002488A (da) |
| MY (1) | MY208293A (da) |
| PH (1) | PH12021550454A1 (da) |
| PL (1) | PL3840385T3 (da) |
| PT (1) | PT3840385T (da) |
| SG (1) | SG11202102171TA (da) |
| WO (2) | WO2020048205A1 (da) |
| ZA (1) | ZA202102188B (da) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7242861B2 (ja) | 2018-09-04 | 2023-03-20 | 華為技術有限公司 | 二方向インター予測に適用される参照フレーム取得方法および装置 |
| CN112771873B (zh) * | 2018-09-20 | 2024-10-18 | 夏普株式会社 | 用于发信号通知视频编码中的参数的系统和方法 |
| PL3932070T3 (pl) * | 2019-04-28 | 2026-01-19 | Beijing Bytedance Network Technology Co., Ltd. | Kodowanie różnicowe symetrycznego wektora ruchu |
| CN113099241B (zh) * | 2021-03-31 | 2022-11-01 | 北京百度网讯科技有限公司 | 参考帧列表更新方法、装置、设备以及存储介质 |
| CN120982101A (zh) * | 2023-02-15 | 2025-11-18 | 联发科技股份有限公司 | 帧间合并时间候选的参考图像选择技术 |
| WO2025138242A1 (zh) * | 2023-12-29 | 2025-07-03 | Oppo广东移动通信有限公司 | 一种编解码方法、编码器、解码器以及存储介质 |
| WO2025216557A1 (ko) * | 2024-04-09 | 2025-10-16 | 엘지전자 주식회사 | 영상 정보를 인코딩하는 방법, 영상 정보를 디코딩하는 방법, 컴퓨터 판독 가능한 저장 매체 및 영상 정보를 전송하는 방법 |
| WO2025217773A1 (zh) * | 2024-04-15 | 2025-10-23 | Oppo广东移动通信有限公司 | 一种视频编解码方法、编码器、解码器以及存储介质 |
Family Cites Families (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7295612B2 (en) | 2003-09-09 | 2007-11-13 | Apple Inc. | Determining the number of unidirectional and bidirectional motion compensated frames to be encoded for a video sequence and detecting scene cuts in the video sequence |
| US7400681B2 (en) * | 2003-11-28 | 2008-07-15 | Scientific-Atlanta, Inc. | Low-complexity motion vector prediction for video codec with two lists of reference pictures |
| KR100746006B1 (ko) | 2005-07-19 | 2007-08-06 | 삼성전자주식회사 | 계층적 구조에 적합하게 시간적 다이렉트 모드로인코딩하며, 디코딩하는 방법 및 장치 |
| JP2007067731A (ja) * | 2005-08-30 | 2007-03-15 | Sanyo Electric Co Ltd | 符号化方法 |
| JP2008154015A (ja) | 2006-12-19 | 2008-07-03 | Hitachi Ltd | 復号化方法および符号化方法 |
| CN101309427B (zh) * | 2008-07-09 | 2010-07-07 | 中兴通讯股份有限公司 | 视频编码方法和装置 |
| JP2011082683A (ja) * | 2009-10-05 | 2011-04-21 | Sony Corp | 画像処理装置、画像処理方法、及び、プログラム |
| CA2797047C (en) | 2010-04-23 | 2016-09-20 | Soo Mi Oh | Image encoding apparatus |
| TWI508534B (zh) | 2010-05-18 | 2015-11-11 | Sony Corp | Image processing apparatus and image processing method |
| US9008181B2 (en) | 2011-01-24 | 2015-04-14 | Qualcomm Incorporated | Single reference picture list utilization for interprediction video coding |
| US9288501B2 (en) | 2011-03-08 | 2016-03-15 | Qualcomm Incorporated | Motion vector predictors (MVPs) for bi-predictive inter mode in video coding |
| JP5786499B2 (ja) | 2011-06-30 | 2015-09-30 | 株式会社Jvcケンウッド | 画像復号装置、画像復号方法及び画像復号プログラム |
| JP5485969B2 (ja) * | 2011-11-07 | 2014-05-07 | 株式会社Nttドコモ | 動画像予測符号化装置、動画像予測符号化方法、動画像予測符号化プログラム、動画像予測復号装置、動画像予測復号方法及び動画像予測復号プログラム |
| US9467694B2 (en) * | 2011-11-21 | 2016-10-11 | Google Technology Holdings LLC | Implicit determination and combined implicit and explicit determination of collocated picture for temporal prediction |
| US9503720B2 (en) | 2012-03-16 | 2016-11-22 | Qualcomm Incorporated | Motion vector coding and bi-prediction in HEVC and its extensions |
| US20130272409A1 (en) * | 2012-04-12 | 2013-10-17 | Qualcomm Incorporated | Bandwidth reduction in video coding through applying the same reference index |
| SG11201406617YA (en) | 2012-04-15 | 2014-12-30 | Samsung Electronics Co Ltd | Method and apparatus for determining reference images for inter-prediction |
| US9253487B2 (en) | 2012-05-31 | 2016-02-02 | Qualcomm Incorporated | Reference index for enhancement layer in scalable video coding |
| BR112014032585B1 (pt) * | 2012-06-29 | 2022-10-04 | Velos Media International Limited | Codificação e decodificação de sequências de vídeo compreendendo conjuntos de imagens de referência |
| JP2015526012A (ja) | 2012-07-02 | 2015-09-07 | サムスン エレクトロニクス カンパニー リミテッド | ブロックサイズによってインター予測の参照ピクチャリストを決定するビデオ符号化方法及びその装置、並びにビデオ復号化方法及びその装置 |
| US9357195B2 (en) * | 2012-08-16 | 2016-05-31 | Qualcomm Incorporated | Inter-view predicted motion vector for 3D video |
| WO2014049196A1 (en) | 2012-09-27 | 2014-04-03 | Nokia Corporation | Method and techniqal equipment for scalable video coding |
| CN103079072A (zh) * | 2013-01-15 | 2013-05-01 | 清华大学 | 帧间预测方法、编码设备和解码设备 |
| WO2014163458A1 (ko) | 2013-04-05 | 2014-10-09 | 삼성전자주식회사 | 인터 레이어 복호화 및 부호화 방법 및 장치를 위한 인터 예측 후보 결정 방법 |
| CN104717513B (zh) * | 2015-03-31 | 2018-02-09 | 北京奇艺世纪科技有限公司 | 一种双向帧间预测方法及装置 |
| US10404979B2 (en) * | 2016-03-17 | 2019-09-03 | Mediatek Inc. | Video coding with interpolated reference pictures |
| US10939125B2 (en) * | 2016-04-29 | 2021-03-02 | Industry Academy Cooperation Foundation Of Sejong University | Method and apparatus for encoding/decoding image signal |
| KR102219320B1 (ko) * | 2016-09-30 | 2021-02-23 | 후아웨이 테크놀러지 컴퍼니 리미티드 | 인터 프레임 예측을 위한 이미지 코딩 및 디코딩을 위한 방법 및 디바이스 |
| CN109691098A (zh) | 2016-09-30 | 2019-04-26 | 华为技术有限公司 | 视频编码方法、解码方法及终端 |
| EP3560202A4 (en) * | 2016-12-27 | 2020-07-29 | MediaTek Inc. | BILATERAL MODEL MV REFINEMENT PROCESS AND APPARATUS INTENDED FOR VIDEO CODING |
| US10595035B2 (en) * | 2017-03-22 | 2020-03-17 | Qualcomm Incorporated | Constraining motion vector information derived by decoder-side motion vector derivation |
| JP6344508B2 (ja) * | 2017-06-12 | 2018-06-20 | 株式会社Jvcケンウッド | 画像復号装置、画像復号方法、画像復号プログラム |
| CN108124154B (zh) * | 2017-12-28 | 2020-04-24 | 北京数码视讯科技股份有限公司 | 帧间预测模式的快速选择方法、装置及电子设备 |
| CN115396677A (zh) * | 2018-06-30 | 2022-11-25 | 抖音视界有限公司 | 用于视频编解码的对称性双向预测模式 |
| CN115052162A (zh) * | 2018-07-02 | 2022-09-13 | 华为技术有限公司 | 用于解码端运动矢量修正的基于误差面的子像素精确修正方法 |
| JP7242861B2 (ja) * | 2018-09-04 | 2023-03-20 | 華為技術有限公司 | 二方向インター予測に適用される参照フレーム取得方法および装置 |
| PL3932070T3 (pl) * | 2019-04-28 | 2026-01-19 | Beijing Bytedance Network Technology Co., Ltd. | Kodowanie różnicowe symetrycznego wektora ruchu |
-
2019
- 2019-06-30 JP JP2021536131A patent/JP7242861B2/ja active Active
- 2019-06-30 KR KR1020217009653A patent/KR102602827B1/ko active Active
- 2019-06-30 WO PCT/CN2019/094106 patent/WO2020048205A1/zh not_active Ceased
- 2019-06-30 MX MX2021002488A patent/MX2021002488A/es unknown
- 2019-06-30 CN CN201980057228.5A patent/CN112640468B/zh active Active
- 2019-06-30 BR BR112021004060-9A patent/BR112021004060A2/pt unknown
- 2019-06-30 EP EP19857950.0A patent/EP3840386A4/en not_active Ceased
- 2019-09-04 SG SG11202102171TA patent/SG11202102171TA/en unknown
- 2019-09-04 AU AU2019335839A patent/AU2019335839B2/en active Active
- 2019-09-04 PT PT198583205T patent/PT3840385T/pt unknown
- 2019-09-04 CA CA3111112A patent/CA3111112A1/en active Pending
- 2019-09-04 EP EP19858320.5A patent/EP3840385B1/en active Active
- 2019-09-04 HU HUE19858320A patent/HUE071453T2/hu unknown
- 2019-09-04 EP EP25156150.2A patent/EP4542998A3/en active Pending
- 2019-09-04 FI FIEP19858320.5T patent/FI3840385T3/fi active
- 2019-09-04 PL PL19858320.5T patent/PL3840385T3/pl unknown
- 2019-09-04 CN CN202511204651.7A patent/CN121284270A/zh active Pending
- 2019-09-04 CN CN201980037194.3A patent/CN112567753A/zh active Pending
- 2019-09-04 ES ES19858320T patent/ES3032692T3/es active Active
- 2019-09-04 JP JP2021536143A patent/JP7277587B2/ja active Active
- 2019-09-04 KR KR1020217009929A patent/KR102655127B1/ko active Active
- 2019-09-04 CN CN202011633839.0A patent/CN112866721A/zh active Pending
- 2019-09-04 WO PCT/CN2019/104462 patent/WO2020048502A1/zh not_active Ceased
- 2019-09-04 BR BR112021003967-8A patent/BR112021003967A2/pt unknown
- 2019-09-04 MX MX2021002489A patent/MX2021002489A/es unknown
- 2019-09-04 DK DK19858320.5T patent/DK3840385T3/da active
- 2019-09-04 MY MYPI2021001104A patent/MY208293A/en unknown
- 2019-09-04 CN CN202511204095.3A patent/CN121284269A/zh active Pending
-
2021
- 2021-03-02 US US17/189,577 patent/US11659161B2/en active Active
- 2021-03-02 US US17/189,953 patent/US11792389B2/en active Active
- 2021-03-03 PH PH12021550454A patent/PH12021550454A1/en unknown
- 2021-03-31 ZA ZA2021/02188A patent/ZA202102188B/en unknown
-
2022
- 2022-08-25 AU AU2022221499A patent/AU2022221499B2/en active Active
-
2023
- 2023-05-08 JP JP2023076777A patent/JP7609919B2/ja active Active
- 2023-05-08 JP JP2023076778A patent/JP7797439B2/ja active Active
- 2023-09-07 US US18/462,625 patent/US12341950B2/en active Active
-
2024
- 2024-03-21 AU AU2024201857A patent/AU2024201857B2/en active Active
-
2025
- 2025-05-16 US US19/211,081 patent/US20250330575A1/en active Pending
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK3955576T3 (da) | Fremgangsmåde og anordning til interframe-forudsigelse | |
| ZA202100055B (en) | Intra-frame prediction method and device | |
| DK3840385T3 (da) | Fremgangsmåde og indretning til bidirektionel interframe-forudsigelse | |
| DK3331242T3 (da) | Fremgangsmåde og enhed til billedforudsigelse | |
| DK3677032T3 (da) | Fremgangsmåde og apparat til kodning | |
| DK3738010T3 (da) | Styreenhed og fremgangsmåde til transportindretninger | |
| DK3932063T3 (da) | Fremgangsmåde og indretning til billedkodning og -afkodning | |
| DK3457606T3 (da) | Fremgangsmåde og indretning til kodning af polarkode | |
| PL3913921T3 (pl) | Sposób i urządzenie do predykcji międzyramkowej na podstawie dmvr | |
| DK3539405T3 (da) | Fastgørelsesindretning og fremgangsmåde til samling deraf | |
| DK3639585T3 (da) | Fremgangsmåde og indretning til at styre båndbreddedele | |
| DK3550244T3 (da) | Køleanordning og fremgangsmåde til installation deraf | |
| DK3739968T3 (da) | Fremgangsmåde og indretning til at bestemme timerkonfiguration | |
| DK3863335T3 (da) | Fremgangsmåde og enhed til pdcch-monitorering | |
| DK3771211T3 (da) | Fremgangsmåde og anordning til tovejsinterforudsigelse | |
| DK3466167T3 (da) | Fremgangsmåde og indretning til synkronisering | |
| DK4000045T3 (da) | Renderingsfremgangsmåde og renderingsindretning til udførelse deraf | |
| IL283623A (en) | Method and device for picture encoding and decoding | |
| IL281533A (en) | Method and apparatus for video encoding and decoding using bi-prediction | |
| DK3554179T3 (da) | Fremgangsmåde og anordning til trådløs kommunikation | |
| DK3714653T3 (da) | Fremgangsmåder og anordninger til adaptiv planlægningsanmodningsprocedure | |
| DK3890325T3 (da) | Interframe-forudsigelsesfremgangsmåde og enhed | |
| DK3894222T3 (da) | Indretning og fremgangsmåde til laminering | |
| DK3611511T3 (da) | Billedtagningsanordning og billedtagningsfremgangsmåde | |
| DK3649658T3 (da) | Fremgangsmåde til vedligeholdelse af en transformer og transformeranordning |