GB2617111B - Data compression and decompression - Google Patents

Data compression and decompression Download PDF

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Publication number
GB2617111B
GB2617111B GB2204484.6A GB202204484A GB2617111B GB 2617111 B GB2617111 B GB 2617111B GB 202204484 A GB202204484 A GB 202204484A GB 2617111 B GB2617111 B GB 2617111B
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GB
United Kingdom
Prior art keywords
decompression
data compression
compression
data
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
GB2204484.6A
Other versions
GB2617111A (en
GB202204484D0 (en
Inventor
Smith-Lacey Peter
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.)
Imagination Technologies Ltd
Original Assignee
Imagination Technologies Ltd
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
Application filed by Imagination Technologies Ltd filed Critical Imagination Technologies Ltd
Priority to GB2406981.7A priority Critical patent/GB2627883A/en
Priority to GB2204484.6A priority patent/GB2617111B/en
Publication of GB202204484D0 publication Critical patent/GB202204484D0/en
Priority to US18/123,939 priority patent/US20230334708A1/en
Priority to US18/123,900 priority patent/US20230334028A1/en
Priority to US18/123,925 priority patent/US20230334707A1/en
Priority to EP23164304.0A priority patent/EP4254805A1/en
Priority to EP23164306.5A priority patent/EP4254806A1/en
Priority to EP23164307.3A priority patent/EP4254807A1/en
Publication of GB2617111A publication Critical patent/GB2617111A/en
Application granted granted Critical
Publication of GB2617111B publication Critical patent/GB2617111B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H04N19/90—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
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
    • 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
    • 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
    • H03M7/60—General implementation details not specific to a particular type of compression
    • H03M7/6005—Decoder aspects
    • 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
    • H03M7/60—General implementation details not specific to a particular type of compression
    • H03M7/6017—Methods or arrangements to increase the throughput
    • H03M7/6023—Parallelization
    • 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
    • H03M7/60—General implementation details not specific to a particular type of compression
    • H03M7/6064—Selection of Compressor
    • H03M7/607—Selection between different types of compressors
    • 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
    • H04N19/182—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 pixel
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video 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
    • H04N19/10—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
GB2204484.6A 2022-03-29 2022-03-29 Data compression and decompression Active GB2617111B (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB2406981.7A GB2627883A (en) 2022-03-29 2022-03-29 Data compression and decompression
GB2204484.6A GB2617111B (en) 2022-03-29 2022-03-29 Data compression and decompression
US18/123,925 US20230334707A1 (en) 2022-03-29 2023-03-20 Data compression and decompression
US18/123,900 US20230334028A1 (en) 2022-03-29 2023-03-20 Data compression and decompression
US18/123,939 US20230334708A1 (en) 2022-03-29 2023-03-20 Data compression and decompression
EP23164304.0A EP4254805A1 (en) 2022-03-29 2023-03-27 Data compression and decompression
EP23164306.5A EP4254806A1 (en) 2022-03-29 2023-03-27 Data compression and decompression
EP23164307.3A EP4254807A1 (en) 2022-03-29 2023-03-27 Data compression and decompression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2204484.6A GB2617111B (en) 2022-03-29 2022-03-29 Data compression and decompression

Publications (3)

Publication Number Publication Date
GB202204484D0 GB202204484D0 (en) 2022-05-11
GB2617111A GB2617111A (en) 2023-10-04
GB2617111B true GB2617111B (en) 2024-07-03

Family

ID=81449410

Family Applications (2)

Application Number Title Priority Date Filing Date
GB2204484.6A Active GB2617111B (en) 2022-03-29 2022-03-29 Data compression and decompression
GB2406981.7A Pending GB2627883A (en) 2022-03-29 2022-03-29 Data compression and decompression

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2406981.7A Pending GB2627883A (en) 2022-03-29 2022-03-29 Data compression and decompression

Country Status (1)

Country Link
GB (2) GB2617111B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0969670A1 (en) * 1998-06-29 2000-01-05 Xerox Corporation Unequal compression of MSBs and LSBs using Hierarchical Vector Quantization (HVQ)
EP0973339A2 (en) * 1998-06-29 2000-01-19 Xerox Corporation Compression by splitting each word and applying lossy compression to least significant bits
JP2006262161A (en) * 2005-03-17 2006-09-28 Ricoh Co Ltd Image processor, image processing method, and storage medium with the method stored therein
US20140132429A1 (en) * 2012-11-10 2014-05-15 John Conant Scoville Method for data compression and inference

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0969670A1 (en) * 1998-06-29 2000-01-05 Xerox Corporation Unequal compression of MSBs and LSBs using Hierarchical Vector Quantization (HVQ)
EP0973339A2 (en) * 1998-06-29 2000-01-19 Xerox Corporation Compression by splitting each word and applying lossy compression to least significant bits
JP2006262161A (en) * 2005-03-17 2006-09-28 Ricoh Co Ltd Image processor, image processing method, and storage medium with the method stored therein
US20140132429A1 (en) * 2012-11-10 2014-05-15 John Conant Scoville Method for data compression and inference

Also Published As

Publication number Publication date
GB2617111A (en) 2023-10-04
GB202406981D0 (en) 2024-07-03
GB202204484D0 (en) 2022-05-11
GB2627883A (en) 2024-09-04

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