KR970032201A - 투사형 화상표시시스템의 비대칭화면 보정제어방법 - Google Patents
투사형 화상표시시스템의 비대칭화면 보정제어방법 Download PDFInfo
- Publication number
- KR970032201A KR970032201A KR1019950040953A KR19950040953A KR970032201A KR 970032201 A KR970032201 A KR 970032201A KR 1019950040953 A KR1019950040953 A KR 1019950040953A KR 19950040953 A KR19950040953 A KR 19950040953A KR 970032201 A KR970032201 A KR 970032201A
- Authority
- KR
- South Korea
- Prior art keywords
- image signal
- correction
- screen
- image
- block
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000003702 image correction Methods 0.000 title 1
- 230000004044 response Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
Classifications
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- 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
- H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/10—Projectors with built-in or built-on screen
-
- 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]
- H04N9/3141—Constructional details thereof
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Controls And Circuits For Display Device (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
Description
Claims (2)
- 화상처리수단에 의해 처리된 화상신호를 스크린에 투사하는 투사형 화상표시시스템에 있어서, 상기 스크린상에 투사되는 상기 화상신호의 투사각에 대응하는 보정량 제어신호에 따라 그 화면의 전체 주사라인수에서의 보정대상의 블록을 결정하고, 그 결정된 보정대상 블록의 주사라인마다 화상의 선보정을 위한 화소의 누락처리를 실행하기 위해 보정방향을 따라 상기 보정대상의 화상신호의 메모리에 대한 기록/독출타이밍을 설정하여 상기 화상신호의 메모리 기록 및 독출시 상기 보정량에 대응하는 화소의 누락처리를 행하며, 그 화소생략된 화상신호에 대한 전체적인 지연량을 결정하여 상기 스크린상에 투사되는 화상신호에 대해 선행적으로 역보정을 수행해서 스크린상에 선보정된 화상신호가 정상적인 형태로 표시되도록 하는 것을 특징으로 하는 투사형 화상표시시스템의 비대칭화면 보정제어방법.
- 제 1항에 있어서, 상기 투사각에 대한 화상신호의 보정대상블럭은 2L/m(단, L은 상기 화면의 전체 주사라인의 수, m은 상기 보정량)에 의해 산출되고, 그 보정대상의 블록에서 보정방향을 따라 보정량의 화소가 누락처리되면 m/2의 지연처리가 행해져서 선보정된 화상신호가 얻어지는 것을 특징으로하는 투사형 화상표시시스템의 비대칭화면 보정제어방법.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950040953A KR100188219B1 (ko) | 1995-11-13 | 1995-11-13 | 투사형 화상표시시스템의 비대칭화면 보정 제어 방법 |
JP8314118A JPH09200663A (ja) | 1995-11-13 | 1996-11-12 | 投射型の画像表示システムでの非対称画像の先補償方法 |
EP96308201A EP0773679A3 (en) | 1995-11-13 | 1996-11-13 | Method for pre-compensating an asymmetrical picture in a projection system for displaying a picture |
CN96121369A CN1158537A (zh) | 1995-11-13 | 1996-11-13 | 对显示图像的投影系统中非对称图像的预补偿方法 |
US08/747,087 US5752758A (en) | 1995-11-13 | 1996-11-13 | Method for pre-compensating an asymmetrical picture in a projection system for displaying a picture |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950040953A KR100188219B1 (ko) | 1995-11-13 | 1995-11-13 | 투사형 화상표시시스템의 비대칭화면 보정 제어 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970032201A true KR970032201A (ko) | 1997-06-26 |
KR100188219B1 KR100188219B1 (ko) | 1999-06-01 |
Family
ID=19433849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950040953A Expired - Fee Related KR100188219B1 (ko) | 1995-11-13 | 1995-11-13 | 투사형 화상표시시스템의 비대칭화면 보정 제어 방법 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100188219B1 (ko) |
-
1995
- 1995-11-13 KR KR1019950040953A patent/KR100188219B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100188219B1 (ko) | 1999-06-01 |
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