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GB2608965B - Lossy compression techniques - Google Patents

Lossy compression techniques Download PDF

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Publication number
GB2608965B
GB2608965B GB2215649.1A GB202215649A GB2608965B GB 2608965 B GB2608965 B GB 2608965B GB 202215649 A GB202215649 A GB 202215649A GB 2608965 B GB2608965 B GB 2608965B
Authority
GB
United Kingdom
Prior art keywords
compression techniques
lossy compression
lossy
techniques
compression
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
GB2215649.1A
Other versions
GB202215649D0 (en
GB2608965A (en
Inventor
J Bergland Tyson
Ramani Karthik
Lachowsky Stephan
A Hensley Justin
A Jamshidi Davoud
P Delaurier Anthony
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.)
Apple Inc
Original Assignee
Apple Inc
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 claimed from US16/855,540 external-priority patent/US11664816B2/en
Priority claimed from US16/855,459 external-priority patent/US11405622B2/en
Application filed by Apple Inc filed Critical Apple Inc
Publication of GB202215649D0 publication Critical patent/GB202215649D0/en
Publication of GB2608965A publication Critical patent/GB2608965A/en
Application granted granted Critical
Publication of GB2608965B publication Critical patent/GB2608965B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3059—Digital compression and data reduction techniques where the original information is represented by a subset or similar information, e.g. lossy compression
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/3082—Vector 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
    • H04N19/10—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
    • H04N19/124—Quantisation
    • 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
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
GB2215649.1A 2020-04-22 2021-04-16 Lossy compression techniques Active GB2608965B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16/855,540 US11664816B2 (en) 2020-04-22 2020-04-22 Lossy compression techniques
US16/855,459 US11405622B2 (en) 2020-04-22 2020-04-22 Lossless compression techniques
PCT/US2021/027623 WO2021216361A1 (en) 2020-04-22 2021-04-16 Lossy compression techniques

Publications (3)

Publication Number Publication Date
GB202215649D0 GB202215649D0 (en) 2022-12-07
GB2608965A GB2608965A (en) 2023-01-18
GB2608965B true GB2608965B (en) 2025-01-01

Family

ID=75914572

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2215649.1A Active GB2608965B (en) 2020-04-22 2021-04-16 Lossy compression techniques

Country Status (5)

Country Link
KR (1) KR102780040B1 (en)
CN (1) CN115516769A (en)
DE (1) DE112021002484T5 (en)
GB (1) GB2608965B (en)
WO (1) WO2021216361A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2025120763A (en) * 2024-02-05 2025-08-18 横河電機株式会社 Compression device, decompression device, compression method, decompression method, and program

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424060A2 (en) * 1989-10-14 1991-04-24 Sony Corporation Method of coding video signals and transmission system thereof
EP0840510A1 (en) * 1996-05-17 1998-05-06 Matsushita Electric Industrial Co., Ltd. Picture encoder, picture decoder, picture encoding method, picture decoding method, picture encoding program recording medium, and picture decoding program recording medium
US6058217A (en) * 1996-07-17 2000-05-02 Sony Corporation Image coding apparatus for coding an image of a component signal

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9264749B2 (en) 2012-12-13 2016-02-16 Microsoft Technology Licensing, Llc Server GPU assistance for mobile GPU applications
CN105407352A (en) 2015-11-23 2016-03-16 小米科技有限责任公司 Image compression method and device, and server

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424060A2 (en) * 1989-10-14 1991-04-24 Sony Corporation Method of coding video signals and transmission system thereof
EP0840510A1 (en) * 1996-05-17 1998-05-06 Matsushita Electric Industrial Co., Ltd. Picture encoder, picture decoder, picture encoding method, picture decoding method, picture encoding program recording medium, and picture decoding program recording medium
US6058217A (en) * 1996-07-17 2000-05-02 Sony Corporation Image coding apparatus for coding an image of a component signal

Also Published As

Publication number Publication date
WO2021216361A1 (en) 2021-10-28
DE112021002484T5 (en) 2023-04-06
CN115516769A (en) 2022-12-23
KR102780040B1 (en) 2025-03-12
KR20220157467A (en) 2022-11-29
GB202215649D0 (en) 2022-12-07
GB2608965A (en) 2023-01-18

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