GB2370714B - Apparatus and method for correcting distortion of image and image displayer using the same - Google Patents

Apparatus and method for correcting distortion of image and image displayer using the same

Info

Publication number
GB2370714B
GB2370714B GB0202895A GB0202895A GB2370714B GB 2370714 B GB2370714 B GB 2370714B GB 0202895 A GB0202895 A GB 0202895A GB 0202895 A GB0202895 A GB 0202895A GB 2370714 B GB2370714 B GB 2370714B
Authority
GB
United Kingdom
Prior art keywords
image
same
correcting distortion
displayer
image displayer
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
GB0202895A
Other versions
GB2370714A (en
GB0202895D0 (en
Inventor
Woo Jin Song
Kyu Young Hwang
Hyun Chool Shin
Chung Hee Lee
Jong Hwa Kim
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.)
LG Electronics Inc
Original Assignee
LG Electronics 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
Priority claimed from KR10-2000-0074172A external-priority patent/KR100414083B1/en
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of GB0202895D0 publication Critical patent/GB0202895D0/en
Publication of GB2370714A publication Critical patent/GB2370714A/en
Application granted granted Critical
Publication of GB2370714B publication Critical patent/GB2370714B/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
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3185—Geometric adjustment, e.g. keystone or convergence
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/22—Circuits for controlling dimensions, shape or centering of picture on screen
    • H04N3/23—Distortion correction, e.g. for pincushion distortion correction, S-correction
    • H04N3/233—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements
    • H04N3/2335—Distortion correction, e.g. for pincushion distortion correction, S-correction using active elements with calculating means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3191—Testing thereof
    • H04N9/3194—Testing thereof including sensor feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Image Processing (AREA)
GB0202895A 1999-12-18 2000-12-15 Apparatus and method for correcting distortion of image and image displayer using the same Expired - Fee Related GB2370714B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR19990058980 1999-12-18
KR10-2000-0074172A KR100414083B1 (en) 1999-12-18 2000-12-07 Method for compensating image distortion and image displaying apparatus using the same
GB0030659A GB2359688B (en) 1999-12-18 2000-12-15 Apparatus and method for correcting distortion of image

Publications (3)

Publication Number Publication Date
GB0202895D0 GB0202895D0 (en) 2002-03-27
GB2370714A GB2370714A (en) 2002-07-03
GB2370714B true GB2370714B (en) 2003-06-04

Family

ID=27256011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0202895A Expired - Fee Related GB2370714B (en) 1999-12-18 2000-12-15 Apparatus and method for correcting distortion of image and image displayer using the same

Country Status (1)

Country Link
GB (1) GB2370714B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6807289B2 (en) * 2001-08-10 2004-10-19 Gerber Technology, Inc. Method to compensate for pattern distortion on sheet-type work material spread onto a support surface
JP2005099574A (en) * 2003-09-26 2005-04-14 Nec Viewtechnology Ltd System for correcting geometrical optical center linked with lens shift
CN1859583B (en) * 2005-11-29 2010-06-09 华为技术有限公司 Detecting system and its method for moving terminal with display screen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231481A (en) * 1990-03-23 1993-07-27 Thomson-Csf Projection display device with negative feedback loop to correct all the faults of the projected image
EP0756425A2 (en) * 1995-07-25 1997-01-29 Daewoo Electronics Co., Ltd Method and apparatus for correcting trapezoidal image distortion in a display projection system by modifying image signals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5231481A (en) * 1990-03-23 1993-07-27 Thomson-Csf Projection display device with negative feedback loop to correct all the faults of the projected image
EP0756425A2 (en) * 1995-07-25 1997-01-29 Daewoo Electronics Co., Ltd Method and apparatus for correcting trapezoidal image distortion in a display projection system by modifying image signals

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
US2001017687 *

Also Published As

Publication number Publication date
GB2370714A (en) 2002-07-03
GB0202895D0 (en) 2002-03-27

Similar Documents

Publication Publication Date Title
HK1045229A1 (en) Method and apparatus for frequency offset correction
SG98413A1 (en) Image display apparatus and its method of operation
AU5128500A (en) Method and apparatus for generating consistent image registration
HK1096191A1 (en) Method and apparatus for rendering video
EP1079365A4 (en) Method and apparatus for projection display
AU2619001A (en) Method and apparatus for performing video image decoding
NZ513632A (en) Image rendering method and apparatus
GB9906420D0 (en) Method and apparatus for image processing
EP1235427A4 (en) Method and apparatus for gradation correction, and video display
SG95602A1 (en) Apparatus and method for image enhancement
AU2108801A (en) Methods and apparatus for image manipulation
HU0103990D0 (en) Distortion compensation apparatus and distortion compensation method
GB2367034B (en) Screen printing apparatus and method of the same
GB2361375B (en) Method of and apparatus for monitoring the quality of distributed digital images
EP1304869A4 (en) Image distortion correcting device and image distortion correcting method
EP1269391A4 (en) Differential correction method and apparatus
GB2376613B (en) Methods and apparatus for signal distortion correction
HK1032839A1 (en) Image displaying apparatus and method thereof
GB2355635B (en) Image display apparatus and control method thereof
GB2364668B (en) Method for screen printing and apparatus for screen printing
GB2370714B (en) Apparatus and method for correcting distortion of image and image displayer using the same
AU4790400A (en) Image forming apparatus and method
EP1115246A4 (en) Method and apparatus for deflection
GB2349360B (en) Screen printing apparatus and screen printing method
AU3181400A (en) Methods and apparatus for imaging

Legal Events

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

Effective date: 20091215