GB0512433D0 - System and method for improving image quality in processed images - Google Patents

System and method for improving image quality in processed images

Info

Publication number
GB0512433D0
GB0512433D0 GBGB0512433.4A GB0512433A GB0512433D0 GB 0512433 D0 GB0512433 D0 GB 0512433D0 GB 0512433 A GB0512433 A GB 0512433A GB 0512433 D0 GB0512433 D0 GB 0512433D0
Authority
GB
United Kingdom
Prior art keywords
image quality
processed images
improving image
images
improving
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.)
Granted
Application number
GBGB0512433.4A
Other versions
GB2412530B (en
GB2412530A (en
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 US09/846,408 external-priority patent/US6983078B2/en
Application filed by Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of GB0512433D0 publication Critical patent/GB0512433D0/en
Publication of GB2412530A publication Critical patent/GB2412530A/en
Application granted granted Critical
Publication of GB2412530B publication Critical patent/GB2412530B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H04N19/65—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using error resilience
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/409—Edge or detail enhancement; Noise or error suppression
    • 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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
GB0512433A 2001-05-01 2002-04-23 System and method for improving image quality in processed images Expired - Fee Related GB2412530B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/846,408 US6983078B2 (en) 2001-05-01 2001-05-01 System and method for improving image quality in processed images
GB0209248A GB2376828B (en) 2001-05-01 2002-04-23 System and method for improving image quality in processed images

Publications (3)

Publication Number Publication Date
GB0512433D0 true GB0512433D0 (en) 2005-07-27
GB2412530A GB2412530A (en) 2005-09-28
GB2412530B GB2412530B (en) 2006-01-18

Family

ID=34913636

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0512433A Expired - Fee Related GB2412530B (en) 2001-05-01 2002-04-23 System and method for improving image quality in processed images
GB0518229A Expired - Fee Related GB2415570B (en) 2001-05-01 2002-04-23 System and method for improving image quality in processed images

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0518229A Expired - Fee Related GB2415570B (en) 2001-05-01 2002-04-23 System and method for improving image quality in processed images

Country Status (1)

Country Link
GB (2) GB2412530B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10467730B2 (en) * 2018-03-15 2019-11-05 Sony Corporation Image-processing apparatus to reduce staircase artifacts from an image signal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5799111A (en) * 1991-06-14 1998-08-25 D.V.P. Technologies, Ltd. Apparatus and methods for smoothing images
JP3297293B2 (en) * 1996-03-07 2002-07-02 三菱電機株式会社 Video decoding method and video decoding device
US5796875A (en) * 1996-08-13 1998-08-18 Sony Electronics, Inc. Selective de-blocking filter for DCT compressed images
JP3699800B2 (en) * 1997-03-31 2005-09-28 株式会社東芝 Block noise removal device

Also Published As

Publication number Publication date
GB2415570B (en) 2006-02-15
GB2412530B (en) 2006-01-18
GB0518229D0 (en) 2005-10-19
GB2412530A (en) 2005-09-28
GB2415570A (en) 2005-12-28

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110423