ATE83110T1 - Im echtzeitbetrieb arbeitende lokale videobildverbesserung mit trennbaren zweidimensionalen filtern. - Google Patents

Im echtzeitbetrieb arbeitende lokale videobildverbesserung mit trennbaren zweidimensionalen filtern.

Info

Publication number
ATE83110T1
ATE83110T1 AT87301173T AT87301173T ATE83110T1 AT E83110 T1 ATE83110 T1 AT E83110T1 AT 87301173 T AT87301173 T AT 87301173T AT 87301173 T AT87301173 T AT 87301173T AT E83110 T1 ATE83110 T1 AT E83110T1
Authority
AT
Austria
Prior art keywords
image
signal
real
separable
video signal
Prior art date
Application number
AT87301173T
Other languages
English (en)
Inventor
Richard G Hier
Gregory W Schmidt
Original Assignee
Digivision Inc
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 Digivision Inc filed Critical Digivision Inc
Application granted granted Critical
Publication of ATE83110T1 publication Critical patent/ATE83110T1/de

Links

Classifications

    • 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
    • G06T5/40—Image enhancement or restoration using histogram techniques
    • 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
    • G06T2207/10016—Video; Image sequence
    • 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
    • G06T2207/20004—Adaptive image processing
    • G06T2207/20012—Locally adaptive

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
AT87301173T 1987-02-11 1987-02-11 Im echtzeitbetrieb arbeitende lokale videobildverbesserung mit trennbaren zweidimensionalen filtern. ATE83110T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP87301173A EP0278137B1 (de) 1987-02-11 1987-02-11 Im Echtzeitbetrieb arbeitende lokale Videobildverbesserung mit trennbaren zweidimensionalen Filtern

Publications (1)

Publication Number Publication Date
ATE83110T1 true ATE83110T1 (de) 1992-12-15

Family

ID=8197785

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87301173T ATE83110T1 (de) 1987-02-11 1987-02-11 Im echtzeitbetrieb arbeitende lokale videobildverbesserung mit trennbaren zweidimensionalen filtern.

Country Status (3)

Country Link
EP (1) EP0278137B1 (de)
AT (1) ATE83110T1 (de)
DE (1) DE3782932T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5394195A (en) * 1993-06-14 1995-02-28 Philips Electronics North America Corporation Method and apparatus for performing dynamic gamma contrast control
WO2008046450A1 (en) * 2006-10-18 2008-04-24 Robert Bosch Gmbh Image processing system, method and computer program for contrast enhancement of images
EP2564373B1 (de) * 2010-04-26 2014-12-17 Robert Bosch GmbH Detektion und/oder erhöhung von kontrastunterschieden in digitalen bilddaten

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4231065A (en) * 1979-01-11 1980-10-28 Honeywell Inc. Local area contrast enhancement device
FR2575885B1 (fr) * 1985-01-04 1987-02-20 Thomson Csf Renforcateur de contraste pour images video

Also Published As

Publication number Publication date
EP0278137A1 (de) 1988-08-17
DE3782932T2 (de) 1993-04-08
DE3782932D1 (de) 1993-01-14
EP0278137B1 (de) 1992-12-02

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties