JP7622652B2 - 画像処理装置および方法 - Google Patents

画像処理装置および方法 Download PDF

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Publication number
JP7622652B2
JP7622652B2 JP2021572823A JP2021572823A JP7622652B2 JP 7622652 B2 JP7622652 B2 JP 7622652B2 JP 2021572823 A JP2021572823 A JP 2021572823A JP 2021572823 A JP2021572823 A JP 2021572823A JP 7622652 B2 JP7622652 B2 JP 7622652B2
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Japan
Prior art keywords
inverse
coefficient data
unit
transform
adaptive color
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JP2021572823A
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English (en)
Japanese (ja)
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JPWO2021149812A1 (https=
Inventor
健史 筑波
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Sony Corp
Sony Group Corp
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Sony Corp
Sony Group Corp
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Publication of JPWO2021149812A1 publication Critical patent/JPWO2021149812A1/ja
Priority to JP2025004343A priority Critical patent/JP7747236B2/ja
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—Two-dimensional [2D] image generation
    • G06T11/10—Texturing; Colouring; Generation of textures or colours
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—Two-dimensional [2D] image generation
    • G06T11/60—Creating or editing images; Combining images with text
    • 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
    • G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
    • 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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • 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
    • H04N19/156—Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
    • 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
    • H04N19/18—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 a set of transform coefficients
    • 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
    • H04N19/186—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 a colour or a chrominance component
    • 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]

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
JP2021572823A 2020-01-24 2021-01-22 画像処理装置および方法 Active JP7622652B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2025004343A JP7747236B2 (ja) 2020-01-24 2025-01-10 画像処理装置および方法

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202062965767P 2020-01-24 2020-01-24
US62/965767 2020-01-24
PCT/JP2021/002296 WO2021149812A1 (ja) 2020-01-24 2021-01-22 画像処理装置および方法

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JP2025004343A Division JP7747236B2 (ja) 2020-01-24 2025-01-10 画像処理装置および方法

Publications (2)

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JPWO2021149812A1 JPWO2021149812A1 (https=) 2021-07-29
JP7622652B2 true JP7622652B2 (ja) 2025-01-28

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JP2025004343A Active JP7747236B2 (ja) 2020-01-24 2025-01-10 画像処理装置および方法

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US (1) US12309397B2 (https=)
EP (1) EP4087242A4 (https=)
JP (2) JP7622652B2 (https=)
KR (1) KR20220128338A (https=)
CN (1) CN114982235B (https=)
WO (1) WO2021149812A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021229784A1 (ja) * 2020-05-15 2021-11-18 三菱電機株式会社 攻撃検知システム、攻撃検知方法および攻撃検知プログラム

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016123232A1 (en) 2015-01-30 2016-08-04 Qualcomm Incorporated Clipping for cross-component prediction and adaptive color transform for video coding

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4568242A1 (en) * 2016-05-13 2025-06-11 Sony Group Corporation Image processing apparatus and method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016123232A1 (en) 2015-01-30 2016-08-04 Qualcomm Incorporated Clipping for cross-component prediction and adaptive color transform for video coding

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
Xiaoyu Xiu et al.，ACT colour conversion for both lossless and lossy coding，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-Q0510_r2，17th Meeting: Brussels, BE，2020年01月12日，pp.1-8
Xiaoyu Xiu et al.，AHG16: Clipping residual samples for ACT，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-Q0513_r2，17th Meeting: Brussels, BE，2020年01月14日，pp.1-4
Xiaoyu Xiu et al.，Mismatch on clipping input residuals to IACT，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-R0329，18th Meeting: by teleconference，2020年04月，pp.1-2
Xiaoyu Xiu et al.，On clipping input residuals to IACT，Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11，JVET-R0355_r1，18th Meeting: by teleconference，2020年04月，pp.1-5

Also Published As

Publication number Publication date
US20230045106A1 (en) 2023-02-09
EP4087242A1 (en) 2022-11-09
CN114982235B (zh) 2025-09-30
US12309397B2 (en) 2025-05-20
JPWO2021149812A1 (https=) 2021-07-29
WO2021149812A1 (ja) 2021-07-29
KR20220128338A (ko) 2022-09-20
JP7747236B2 (ja) 2025-10-01
CN114982235A (zh) 2022-08-30
EP4087242A4 (en) 2023-05-03
JP2025061217A (ja) 2025-04-10

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