JP2025504906A - Ｈｄｒビデオコーディングのための自動輝度調整 - Google Patents

Ｈｄｒビデオコーディングのための自動輝度調整 Download PDF

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Publication number
JP2025504906A
JP2025504906A JP2024543970A JP2024543970A JP2025504906A JP 2025504906 A JP2025504906 A JP 2025504906A JP 2024543970 A JP2024543970 A JP 2024543970A JP 2024543970 A JP2024543970 A JP 2024543970A JP 2025504906 A JP2025504906 A JP 2025504906A
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JP
Japan
Prior art keywords
image
regrading
neural network
luminance
processing circuit
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Pending
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JP2024543970A
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English (en)
Japanese (ja)
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JP2025504906A5 (https=
Inventor
クリスティアン ヴァーエカンプ
ルトガー ナイランド
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Koninklijke Philips NV
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Koninklijke Philips NV
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Publication of JP2025504906A publication Critical patent/JP2025504906A/ja
Publication of JP2025504906A5 publication Critical patent/JP2025504906A5/ja
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/60—Image enhancement or restoration using machine learning, e.g. neural networks
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/60—Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model
    • 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
    • H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20081—Training; Learning
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20084—Artificial neural networks [ANN]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20208—High dynamic range [HDR] image processing

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Software Systems (AREA)
  • Image Processing (AREA)
JP2024543970A 2022-01-27 2023-01-13 Ｈｄｒビデオコーディングのための自動輝度調整 Pending JP2025504906A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP22153613.9 2022-01-27
EP22153613.9A EP4220539A1 (en) 2022-01-27 2022-01-27 Automatic luminance adjustment for hdr video coding
PCT/EP2023/050676 WO2023143927A1 (en) 2022-01-27 2023-01-13 Automatic luminance adjustment for hdr video coding

Publications (2)

Publication Number Publication Date
JP2025504906A true JP2025504906A (ja) 2025-02-19
JP2025504906A5 JP2025504906A5 (https=) 2026-01-19

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ID=80121630

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JP2024543970A Pending JP2025504906A (ja) 2022-01-27 2023-01-13 Ｈｄｒビデオコーディングのための自動輝度調整

Country Status (7)

Country Link
US (1) US20250117903A1 (https=)
EP (1) EP4220539A1 (https=)
JP (1) JP2025504906A (https=)
CN (1) CN118633102A (https=)
DE (1) DE112023000695T5 (https=)
GB (1) GB2630867A (https=)
WO (1) WO2023143927A1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4633151A1 (en) * 2024-04-09 2025-10-15 InterDigital CE Patent Holdings, SAS Neural network post filter for energy-recovery
US12593084B2 (en) * 2024-04-22 2026-03-31 Varjo Technologies Oy Video streaming system and video streaming method
WO2026041225A1 (en) * 2024-08-20 2026-02-26 Huawei Technologies Co., Ltd. Mapping a high dynamic range image to a lower dynamic range image

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2907057B2 (ja) * 1995-04-20 1999-06-21 日本電気株式会社 輝度自動調整装置
CA3114379C (en) 2011-12-06 2023-06-27 Dolby Laboratories Licensing Corporation Device and method of improving the perceptual luminance nonlinearity - based image data exchange across different display capabilities
JP2015005878A (ja) * 2013-06-20 2015-01-08 ソニー株式会社 再生装置、再生方法、および記録媒体
CN107258078B (zh) 2015-01-30 2019-09-24 皇家飞利浦有限公司 简单但通用的动态范围编码
US10863201B2 (en) 2015-12-21 2020-12-08 Koninklijke Philips N.V. Optimizing high dynamic range images for particular displays
KR102709257B1 (ko) * 2018-12-27 2024-09-23 엘지전자 주식회사 영상표시장치
EP3764346A1 (en) * 2019-07-09 2021-01-13 Koninklijke Philips N.V. Adjustment of display optimization behaviour for hdr images

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Publication number Publication date
DE112023000695T5 (de) 2024-11-07
WO2023143927A1 (en) 2023-08-03
GB2630867A (en) 2024-12-11
US20250117903A1 (en) 2025-04-10
CN118633102A (zh) 2024-09-10
GB202412516D0 (en) 2024-10-09
EP4220539A1 (en) 2023-08-02

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