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 sameInfo
- 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
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)
- Transforming Electric Information Into Light Information (AREA)
- Image Processing (AREA)
- Projection Apparatus (AREA)
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)
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)
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 |
-
2000
- 2000-12-15 GB GB0202895A patent/GB2370714B/en not_active Expired - Fee Related
Patent Citations (2)
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)
Title |
---|
US2001017687 * |
Also Published As
Publication number | Publication date |
---|---|
GB2370714A (en) | 2002-07-03 |
GB0202895D0 (en) | 2002-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20091215 |