FR3104747B1 - Procédé de codage d’un hologramme numérique, procédé de codage d’un groupe d’hologrammes numériques et dispositif de codage associé - Google Patents

Procédé de codage d’un hologramme numérique, procédé de codage d’un groupe d’hologrammes numériques et dispositif de codage associé Download PDF

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Publication number
FR3104747B1
FR3104747B1 FR1914334A FR1914334A FR3104747B1 FR 3104747 B1 FR3104747 B1 FR 3104747B1 FR 1914334 A FR1914334 A FR 1914334A FR 1914334 A FR1914334 A FR 1914334A FR 3104747 B1 FR3104747 B1 FR 3104747B1
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FR
France
Prior art keywords
coding
digital
concerned
matrix
matrix block
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Active
Application number
FR1914334A
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English (en)
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FR3104747A1 (fr
Inventor
Antonin Gilles
Patrick Gioia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orange SA
Fondation B Com
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Orange SA
Fondation B Com
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR1914334A priority Critical patent/FR3104747B1/fr
Application filed by Orange SA, Fondation B Com filed Critical Orange SA
Priority to EP20816229.7A priority patent/EP4073594A1/fr
Priority to CN202080086293.3A priority patent/CN114787720A/zh
Priority to PCT/EP2020/084547 priority patent/WO2021115935A1/fr
Priority to JP2022535850A priority patent/JP2023505905A/ja
Priority to KR1020227022292A priority patent/KR20220113975A/ko
Priority to US17/784,009 priority patent/US20230004120A1/en
Publication of FR3104747A1 publication Critical patent/FR3104747A1/fr
Application granted granted Critical
Publication of FR3104747B1 publication Critical patent/FR3104747B1/fr
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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/08—Synthesising holograms, i.e. holograms synthesized from objects or objects from holograms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/001—Model-based coding, e.g. wire frame
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform
    • 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
    • H04N19/167—Position within a video image, e.g. region of interest [ROI]
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H2001/0208—Individual components other than the hologram
    • G03H2001/0228—Electro-optic or electronic components relating to digital holography

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Discrete Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Holo Graphy (AREA)

Abstract

Un procédé de codage d’un hologramme numérique représenté par des valeurs respectivement associées à des pixels d’un plan de définition de l’hologramme numérique, comprend les étapes suivantes : - formation (E4) de blocs matriciels (Bi,j) respectivement associés à des régions formées de pixels contigus, chaque bloc matriciel (Bi,j) contenant des éléments déterminés en fonction des valeurs des pixels de la région associée au bloc matriciel (Bi,j) concerné ; - application (E6) à chacun des blocs matriciels (Bi,j) d’une transformation espace-fréquence de sorte à obtenir, pour chaque bloc matriciel (Bi,j), un ensemble (Ci,j) de coefficients correspondant respectivement à différentes fréquences spatiales bidimensionnelles au sein du bloc matriciel (Bi,j) concerné ; - construction (E8) d’une pluralité de structures bidimensionnelles (Sp,q) comprenant, chacune, des coefficients issus d’une pluralité d’ensembles (Ci,j) de coefficients et associés à des fréquences spatiales bidimensionnelles respectant un critère dépendant de la structure bidimensionnelle (Sp,q) concernée ; - codage des structures bidimensionnelles (Sp,q) construites. Un procédé de codage d’un groupe d’hologrammes numériques et un dispositif de codage sont également décrits. Figure pour l’abrégé : figure 4
FR1914334A 2019-12-13 2019-12-13 Procédé de codage d’un hologramme numérique, procédé de codage d’un groupe d’hologrammes numériques et dispositif de codage associé Active FR3104747B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR1914334A FR3104747B1 (fr) 2019-12-13 2019-12-13 Procédé de codage d’un hologramme numérique, procédé de codage d’un groupe d’hologrammes numériques et dispositif de codage associé
CN202080086293.3A CN114787720A (zh) 2019-12-13 2020-12-03 用于对数字全息图进行编码的方法、用于对数字全息图的组进行编码的方法和相关联的编码设备
PCT/EP2020/084547 WO2021115935A1 (fr) 2019-12-13 2020-12-03 Procédé de codage d'un hologramme numérique, procédé de codage d'un groupe d'hologrammes numériques et dispositif de codage associé
JP2022535850A JP2023505905A (ja) 2019-12-13 2020-12-03 デジタルホログラムを符号化するための方法、デジタルホログラムのグループを符号化するための方法及び関連する符号化装置
EP20816229.7A EP4073594A1 (fr) 2019-12-13 2020-12-03 Procédé de codage d'un hologramme numérique, procédé de codage d'un groupe d'hologrammes numériques et dispositif de codage associé
KR1020227022292A KR20220113975A (ko) 2019-12-13 2020-12-03 디지털 홀로그램을 인코딩하는 방법, 디지털 홀로그램들의 그룹을 인코딩하는 방법 및 연관된 인코딩 디바이스
US17/784,009 US20230004120A1 (en) 2019-12-13 2020-12-03 Method for encoding a digital hologram, method for encoding a group of digital holograms and associated encoding device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1914334 2019-12-13
FR1914334A FR3104747B1 (fr) 2019-12-13 2019-12-13 Procédé de codage d’un hologramme numérique, procédé de codage d’un groupe d’hologrammes numériques et dispositif de codage associé

Publications (2)

Publication Number Publication Date
FR3104747A1 FR3104747A1 (fr) 2021-06-18
FR3104747B1 true FR3104747B1 (fr) 2023-01-27

Family

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Family Applications (1)

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FR1914334A Active FR3104747B1 (fr) 2019-12-13 2019-12-13 Procédé de codage d’un hologramme numérique, procédé de codage d’un groupe d’hologrammes numériques et dispositif de codage associé

Country Status (7)

Country Link
US (1) US20230004120A1 (fr)
EP (1) EP4073594A1 (fr)
JP (1) JP2023505905A (fr)
KR (1) KR20220113975A (fr)
CN (1) CN114787720A (fr)
FR (1) FR3104747B1 (fr)
WO (1) WO2021115935A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023187126A1 (fr) * 2022-03-31 2023-10-05 Fondation B-Com Procédé et dispositif de décodage d'un hologramme numérique, procédé et dispositif de codage d'un hologramme numérique et programme d'ordinateur associé

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100571389C (zh) * 2004-06-29 2009-12-16 奥林巴斯株式会社 用于图像编码/解码和扩展图像压缩解压缩的方法和设备
KR100586026B1 (ko) * 2005-03-25 2006-06-02 한국전자통신연구원 디지털 홀로그램 부호화 또는/및 복호화 장치 및 그 방법
DE102006003741B4 (de) * 2006-01-18 2009-08-27 Seereal Technologies S.A. Verfahren zum Kodieren eines computergenerierten Hologramms
CN105264443B (zh) * 2013-06-06 2019-05-31 视瑞尔技术公司 用于计算全息图的数据的装置和方法
KR102464362B1 (ko) * 2015-09-30 2022-11-07 삼성전자주식회사 홀로그래픽 이미지 처리방법 및 장치
DE102016100793A1 (de) * 2016-01-19 2017-07-20 Seereal Technologies S.A. Verfahren und Vorrichtung zur Kodierung von komplexwertigen Signalen für die Rekonstruktion von dreidimensionalen Objekten

Also Published As

Publication number Publication date
CN114787720A (zh) 2022-07-22
FR3104747A1 (fr) 2021-06-18
EP4073594A1 (fr) 2022-10-19
US20230004120A1 (en) 2023-01-05
JP2023505905A (ja) 2023-02-13
KR20220113975A (ko) 2022-08-17
WO2021115935A1 (fr) 2021-06-17

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