EP1387319A3 - Image processing apparatus - Google Patents

Image processing apparatus Download PDF

Info

Publication number
EP1387319A3
EP1387319A3 EP03250945A EP03250945A EP1387319A3 EP 1387319 A3 EP1387319 A3 EP 1387319A3 EP 03250945 A EP03250945 A EP 03250945A EP 03250945 A EP03250945 A EP 03250945A EP 1387319 A3 EP1387319 A3 EP 1387319A3
Authority
EP
European Patent Office
Prior art keywords
colour
image
processing apparatus
display
image processing
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
EP03250945A
Other languages
German (de)
French (fr)
Other versions
EP1387319A2 (en
EP1387319B1 (en
Inventor
Keith Robert Calder
Nordine Chaibelaine
Stuart Jonathan Levine
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.)
Sony Europe Ltd
Original Assignee
Sony United Kingdom 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 Sony United Kingdom Ltd filed Critical Sony United Kingdom Ltd
Publication of EP1387319A2 publication Critical patent/EP1387319A2/en
Publication of EP1387319A3 publication Critical patent/EP1387319A3/en
Application granted granted Critical
Publication of EP1387319B1 publication Critical patent/EP1387319B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
    • G09G2340/0428—Gradation resolution change
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed

Abstract

A display device comprises a display (2), a display memory (1) and an image processing apparatus (20). Input colour component samples representative of a colour image are stored in the display memory (1) prior to being displayed. The input colour component samples are read out from the display memory (1) and processed by the image processing apparatus (20) before being displayed by the display device. The image processing apparatus comprises a colour dynamic range converter (30) operable to increase the resolution of the input colour component samples, a low pass filter (36) operable to filter the increased resolution colour component signal samples, and a detection processor (34). The detection processor (34) analyses the input colour component samples to detect a difference between samples associated with detail appearing in the colour image. Consequent upon detection of this detail the detection processor (34) adjusts the bandwidth of the low pass filter in correspondence with the detected detail. The image processor thereby increases a colour palette available to display the colour image, with an advantage that detail is preserved in the reproduced image which may otherwise be lost.
Figure 00000001
EP20030250945 2002-02-22 2003-02-17 Image processing apparatus Expired - Fee Related EP1387319B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0204239 2002-02-22
GB0204239A GB2385764A (en) 2002-02-22 2002-02-22 Increasing colour palette with preservation of detail

Publications (3)

Publication Number Publication Date
EP1387319A2 EP1387319A2 (en) 2004-02-04
EP1387319A3 true EP1387319A3 (en) 2004-10-27
EP1387319B1 EP1387319B1 (en) 2006-09-13

Family

ID=9931604

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030250945 Expired - Fee Related EP1387319B1 (en) 2002-02-22 2003-02-17 Image processing apparatus

Country Status (4)

Country Link
EP (1) EP1387319B1 (en)
CN (1) CN1253016C (en)
DE (1) DE60308282T2 (en)
GB (1) GB2385764A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100378674C (en) * 2004-06-10 2008-04-02 明基电通股份有限公司 Method for detecting resolution ratio of electronic display device, storing media and display device
ATE507552T1 (en) * 2005-09-28 2011-05-15 Sony Ericsson Mobile Comm Ab METHOD FOR INCREASE THE RESOLUTION OF A COLOR REPRESENTATION AND APPARATUS CARRYING OUT SUCH METHOD
CN102622736B (en) * 2011-01-28 2017-08-04 鸿富锦精密工业（深圳）有限公司 Image processing system and method
KR102134030B1 (en) * 2014-10-23 2020-07-15 엘지디스플레이 주식회사 Image conversion apparatus and display apparatus having the same
CN107154237B (en) * 2017-07-03 2019-08-23 江西厚普电子科技有限公司 Brightness adaptive regulation method based on POV-LED screen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5012333A (en) * 1989-01-05 1991-04-30 Eastman Kodak Company Interactive dynamic range adjustment system for printing digital images

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5012333A (en) * 1989-01-05 1991-04-30 Eastman Kodak Company Interactive dynamic range adjustment system for printing digital images

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
JHA R ET AL: "Edge adaptive filtering: how much and which direction?", IEEE, 14 November 1989 (1989-11-14), pages 364 - 366, XP010091465 *
MCWALTER T A: "Edge adaptive image smoothing", COMMUNICATIONS AND SIGNAL PROCESSING, 1991. COMSIG 1991 PROCEEDINGS., SOUTH AFRICAN SYMPOSIUM ON PRETORIA, SOUTH AFRICA 30 AUG. 1991, NEW YORK, NY, USA,IEEE, US, 1991, pages 58 - 62, XP010045350, ISBN: 0-7803-0040-8 *
RUSS JOHN C: "The Image Processing Handbook", 1999, CRC PRESS, SPRINGER, IEEE PRESS, BOCA RATON FL USA, HEIDELBERG GERMANY, XP002292722 *
STEPHEN CANNING: "BIT DEPTH", 3 November 2001 (2001-11-03), XP002292721, Retrieved from the Internet <URL:http://www.acdsystems.com/English/Community/ColumnsArticles/TechTips/tech-2001-11-03.htm> [retrieved on 20040817] *
ULICHNEY ROBERT A, CHEUNG SHIUFUN: "BIT-REPLICATION METHOD FOR UP-MULTIPLYING", DIGITAL CRL CAMBRIDGE RESEARCH LABORATORIES TECHNICAL REPORT SERIES, no. 9, January 1997 (1997-01-01), CAMBRIDGE, MA, USA, XP002292886 *

Also Published As

Publication number Publication date
GB0204239D0 (en) 2002-04-10
EP1387319A2 (en) 2004-02-04
EP1387319B1 (en) 2006-09-13
CN1253016C (en) 2006-04-19
DE60308282D1 (en) 2006-10-26
CN1440001A (en) 2003-09-03
DE60308282T2 (en) 2007-04-05
GB2385764A (en) 2003-08-27

Similar Documents

Publication Publication Date Title
EP1549048A3 (en) Motion detection in video signals
EP1705901A3 (en) Image processing apparatus and method, recording medium, and program
EP1569465A3 (en) Image processing apparatus, and image processing method
EP1253806A3 (en) Automatic sound field correcting device
EP1954026A3 (en) Signal processing integrated circuit, image reading device, and image forming apparatus
EP0859513A3 (en) Image signal converting apparatus and method
EP1737247A3 (en) Image sensing apparatus and image processing method
CN101771823A (en) Image processing apparatus, image capture apparatus, image output apparatus, and method for these apparatus
EP1184809A3 (en) Object detecting method and object detecting apparatus and intruding object monitoring apparatus employing the object detecting method
EP1868370A4 (en) Image processing device and method, program and recording medium
EP2562719A3 (en) Information processing apparatus and method
US5930402A (en) Method and device for local contrast enhancement of video signal
KR970019552A (en) Speech processing unit
EP1643758A3 (en) Image-capturing device, image-processing device, method for controlling image-capturing device, and associated storage medium
EP1760660A3 (en) Image processor
EP1549050A3 (en) Imaging apparatus for processing noise signal and photoelectric conversion signal
EP1249822A3 (en) Display device
EP0933679A3 (en) Photographic processing apparatus and method
EP1775729A3 (en) Signal processing device and signal processing method
EP1355498A3 (en) Adaptive pixel processing
EP1387319A3 (en) Image processing apparatus
EP1521478A3 (en) Signal processing method and apparatus, and image sensing apparatus
KR910019463A (en) Video signal processor
EP1821551A3 (en) Video processing device, video processing method, and video processing program
EP2187383A3 (en) Image display apparatus

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO

17P Request for examination filed

Effective date: 20050412

AKX Designation fees paid

Designated state(s): DE FR GB

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LEVINE, STUART JONATHAN

Inventor name: CALDER, KEITH ROBERT

Inventor name: CHAIBELAINE, NORDINE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60308282

Country of ref document: DE

Date of ref document: 20061026

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070614

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20090213

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090211

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090213

Year of fee payment: 7

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100217

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100217