DE69331719D1 - Verfahren und Vorrichtung zur Geräuschunterdrückung - Google Patents

Verfahren und Vorrichtung zur Geräuschunterdrückung

Info

Publication number
DE69331719D1
DE69331719D1 DE69331719T DE69331719T DE69331719D1 DE 69331719 D1 DE69331719 D1 DE 69331719D1 DE 69331719 T DE69331719 T DE 69331719T DE 69331719 T DE69331719 T DE 69331719T DE 69331719 D1 DE69331719 D1 DE 69331719D1
Authority
DE
Germany
Prior art keywords
noise suppression
suppression
noise
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
DE69331719T
Other languages
English (en)
Other versions
DE69331719T2 (de
Inventor
Pieter Vuylsteke
Piet Dewaele
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.)
Agfa HealthCare NV
Original Assignee
Agfa Gevaert NV
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 Agfa Gevaert NV filed Critical Agfa Gevaert NV
Publication of DE69331719D1 publication Critical patent/DE69331719D1/de
Application granted granted Critical
Publication of DE69331719T2 publication Critical patent/DE69331719T2/de
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
    • G06T5/20—Image enhancement or restoration using local operators
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10116—X-ray image
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20016—Hierarchical, coarse-to-fine, multiscale or multiresolution image processing; Pyramid transform
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20192—Edge enhancement; Edge preservation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30004—Biomedical image processing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S378/00—X-ray or gamma ray systems or devices
    • Y10S378/901—Computer tomography program or processor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Analysis (AREA)
DE69331719T 1992-06-19 1993-05-19 Verfahren und Vorrichtung zur Geräuschunterdrückung Expired - Fee Related DE69331719T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92201802 1992-06-19

Publications (2)

Publication Number Publication Date
DE69331719D1 true DE69331719D1 (de) 2002-04-25
DE69331719T2 DE69331719T2 (de) 2002-10-24

Family

ID=8210705

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69331719T Expired - Fee Related DE69331719T2 (de) 1992-06-19 1993-05-19 Verfahren und Vorrichtung zur Geräuschunterdrückung

Country Status (3)

Country Link
US (1) US5461655A (de)
JP (1) JP3193806B2 (de)
DE (1) DE69331719T2 (de)

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Also Published As

Publication number Publication date
JP3193806B2 (ja) 2001-07-30
DE69331719T2 (de) 2002-10-24
US5461655A (en) 1995-10-24
JPH0696200A (ja) 1994-04-08

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Owner name: AGFA HEALTHCARE NV, MORTSEL, BE

8339 Ceased/non-payment of the annual fee