[go: up one dir, main page]

GB2415570B - 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
GB2415570B
GB2415570B GB0518229A GB0518229A GB2415570B GB 2415570 B GB2415570 B GB 2415570B GB 0518229 A GB0518229 A GB 0518229A GB 0518229 A GB0518229 A GB 0518229A GB 2415570 B GB2415570 B GB 2415570B
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.)
Expired - Fee Related
Application number
GB0518229A
Other versions
GB0518229D0 (en
GB2415570A (en
Inventor
Scott Baggs
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 GB0518229D0 publication Critical patent/GB0518229D0/en
Publication of GB2415570A publication Critical patent/GB2415570A/en
Application granted granted Critical
Publication of GB2415570B publication Critical patent/GB2415570B/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 OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/001—
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • H04N7/3077—
    • H04N7/64—

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)
GB0518229A 2001-05-01 2002-04-23 System and method for improving image quality in processed images Expired - Fee Related GB2415570B (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
GB0518229D0 GB0518229D0 (en) 2005-10-19
GB2415570A GB2415570A (en) 2005-12-28
GB2415570B true GB2415570B (en) 2006-02-15

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 Before (1)

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

Country Status (1)

Country Link
GB (2) GB2412530B (en)

Families Citing this family (2)

* 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
CN116412825B (en) * 2021-12-30 2025-12-23 北京罗克维尔斯科技有限公司 Signal filtering method, device, electronic equipment and storage medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0794671A2 (en) * 1996-03-07 1997-09-10 Mitsubishi Denki Kabushiki Kaisha Motion image decoding method and apparatus for judging contamination regions
JPH10276433A (en) * 1997-03-31 1998-10-13 Toshiba Corp Block noise removal device

Family Cites Families (2)

* 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
US5796875A (en) * 1996-08-13 1998-08-18 Sony Electronics, Inc. Selective de-blocking filter for DCT compressed images

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0794671A2 (en) * 1996-03-07 1997-09-10 Mitsubishi Denki Kabushiki Kaisha Motion image decoding method and apparatus for judging contamination regions
JPH10276433A (en) * 1997-03-31 1998-10-13 Toshiba Corp Block noise removal device

Also Published As

Publication number Publication date
GB2412530B (en) 2006-01-18
GB0518229D0 (en) 2005-10-19
GB2415570A (en) 2005-12-28
GB0512433D0 (en) 2005-07-27
GB2412530A (en) 2005-09-28

Similar Documents

Publication Publication Date Title
AU2001277110A1 (en) Method and apparatus for reducing distortion in images
GB2373123B (en) System and method for automatically cropping graphical images
AU2001253490A1 (en) Method and apparatus for processing echocardiogram video images
AU2003270654A8 (en) System and method for image segmentation
IL129374A0 (en) Methods and apparatus for enhancing discrete pixel images
GB9906420D0 (en) Method and apparatus for image processing
GB0125774D0 (en) Method and apparatus for image matching
EP1110380A4 (en) Method and apparatus for edge enhancement in digital images
SG95602A1 (en) Apparatus and method for image enhancement
GB2359211B (en) Image processing apparatus and method therefor
AU2624700A (en) Method and apparatus for processing images with curves
GB2378839B (en) Method and apparatus for reviewing captured images
GB0017035D0 (en) Method and system for improving video quality
IL132243A0 (en) Apparatus and method for image processing
GB9924977D0 (en) Image processing method and apparatus
GB2351640B (en) Image processing method and image processing apparatus
AU2002351906A8 (en) System and method for scaling an image
GB2412530B (en) System and method for improving image quality in processed images
GB0104939D0 (en) Method and system for improved image processing
GB2347811B (en) Apparatus and method for processing video images
GB0020007D0 (en) Method and apparatus for image quality enhancement
GB9925343D0 (en) Image processing method and apparatus
GB9902680D0 (en) Image processing method and apparatus
GB2359884B (en) Image processing method and apparatus
GB0007937D0 (en) Image processing apparatus and method of processing images

Legal Events

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

Effective date: 20110423