GB2255699B - Methods and apparatus for image restoration - Google Patents

Methods and apparatus for image restoration

Info

Publication number
GB2255699B
GB2255699B GB9110119A GB9110119A GB2255699B GB 2255699 B GB2255699 B GB 2255699B GB 9110119 A GB9110119 A GB 9110119A GB 9110119 A GB9110119 A GB 9110119A GB 2255699 B GB2255699 B GB 2255699B
Authority
GB
United Kingdom
Prior art keywords
estimate
image
original image
difference
received degraded
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
GB9110119A
Other versions
GB9110119D0 (en
GB2255699A (en
Inventor
Chong-Sze Tong
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.)
BAE Systems Electronics Ltd
Original Assignee
GEC Marconi Ltd
Marconi Co 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 GEC Marconi Ltd, Marconi Co Ltd filed Critical GEC Marconi Ltd
Priority to GB9110119A priority Critical patent/GB2255699B/en
Publication of GB9110119D0 publication Critical patent/GB9110119D0/en
Publication of GB2255699A publication Critical patent/GB2255699A/en
Application granted granted Critical
Publication of GB2255699B publication Critical patent/GB2255699B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/73—Deblurring; Sharpening

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

The method of image restoration comprises processing 5 an estimate of an original image so as to obtain an estimate of a received degraded version of the original image; comparing the estimate of the received degraded image with an actual received degraded version of the original image to obtain an indication of the difference between the actual received degraded image and the estimate of the received degraded image and utilising said difference to improve said estimate of the original image. Normally the steps of the method are executed a number of times using for the first step of each further execution the improved estimate of the original image obtained in the preceding execution. Processing means 5 may comprise a neural network. In such a method in the final step of at least one of the executions, e.g. in alternate executions, instead of utilising the difference to improve the estimate of the original image, the difference is utilised to modify the processing of the first step in such a manner as to improve the estimate of the received degraded image obtained in the first step of the next execution. <IMAGE>
GB9110119A 1991-05-10 1991-05-10 Methods and apparatus for image restoration Expired - Fee Related GB2255699B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9110119A GB2255699B (en) 1991-05-10 1991-05-10 Methods and apparatus for image restoration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9110119A GB2255699B (en) 1991-05-10 1991-05-10 Methods and apparatus for image restoration

Publications (3)

Publication Number Publication Date
GB9110119D0 GB9110119D0 (en) 1991-07-03
GB2255699A GB2255699A (en) 1992-11-11
GB2255699B true GB2255699B (en) 1994-09-28

Family

ID=10694759

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9110119A Expired - Fee Related GB2255699B (en) 1991-05-10 1991-05-10 Methods and apparatus for image restoration

Country Status (1)

Country Link
GB (1) GB2255699B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10699453B2 (en) 2017-08-17 2020-06-30 Adobe Inc. Digital media environment for style-aware patching in a digital image
US10672164B2 (en) 2017-10-16 2020-06-02 Adobe Inc. Predicting patch displacement maps using a neural network
GB2567722B (en) * 2017-10-16 2021-04-07 Adobe Inc Predicting patch displacement maps using a neural network
US10614557B2 (en) 2017-10-16 2020-04-07 Adobe Inc. Digital image completion using deep learning
US10755391B2 (en) 2018-05-15 2020-08-25 Adobe Inc. Digital image completion by learning generation and patch matching jointly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187058A (en) * 1986-02-25 1987-08-26 Licentia Gmbh Regeneration of a reference image

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2187058A (en) * 1986-02-25 1987-08-26 Licentia Gmbh Regeneration of a reference image

Also Published As

Publication number Publication date
GB9110119D0 (en) 1991-07-03
GB2255699A (en) 1992-11-11

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Legal Events

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

Effective date: 19960510