JP4196023B2 - イメージ処理アルゴリズムおけるヒステリシス - Google Patents
イメージ処理アルゴリズムおけるヒステリシス Download PDFInfo
- Publication number
- JP4196023B2 JP4196023B2 JP2002077689A JP2002077689A JP4196023B2 JP 4196023 B2 JP4196023 B2 JP 4196023B2 JP 2002077689 A JP2002077689 A JP 2002077689A JP 2002077689 A JP2002077689 A JP 2002077689A JP 4196023 B2 JP4196023 B2 JP 4196023B2
- Authority
- JP
- Japan
- Prior art keywords
- value
- control function
- image control
- tolerance
- image
- 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 - Lifetime
Links
- 238000012545 processing Methods 0.000 title claims description 136
- 230000006870 function Effects 0.000 claims description 187
- 238000000034 method Methods 0.000 claims description 52
- 238000005259 measurement Methods 0.000 claims description 47
- 230000004044 response Effects 0.000 claims description 18
- 241000257465 Echinoidea Species 0.000 claims 2
- 229910052571 earthenware Inorganic materials 0.000 claims 1
- 230000008859 change Effects 0.000 description 22
- 230000008569 process Effects 0.000 description 18
- 238000013507 mapping Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
- H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
- H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Picture Signal Circuits (AREA)
- Image Processing (AREA)
- Color Television Image Signal Generators (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/815,019 US6943832B2 (en) | 2001-03-22 | 2001-03-22 | Hysteresis in image processing algorithms |
| US09/815019 | 2001-03-22 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2002359756A JP2002359756A (ja) | 2002-12-13 |
| JP2002359756A5 JP2002359756A5 (https=) | 2005-09-02 |
| JP4196023B2 true JP4196023B2 (ja) | 2008-12-17 |
Family
ID=25216630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002077689A Expired - Lifetime JP4196023B2 (ja) | 2001-03-22 | 2002-03-20 | イメージ処理アルゴリズムおけるヒステリシス |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6943832B2 (https=) |
| EP (1) | EP1244293A1 (https=) |
| JP (1) | JP4196023B2 (https=) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100639111B1 (ko) * | 2005-03-14 | 2006-10-30 | 주식회사 코아로직 | 이미지 센서의 노출 조절 장치 및 그의 조절 방법 |
| US7546026B2 (en) * | 2005-10-25 | 2009-06-09 | Zoran Corporation | Camera exposure optimization techniques that take camera and scene motion into account |
| US7725022B2 (en) * | 2006-08-22 | 2010-05-25 | Qualcomm Incorporated | Dynamic automatic exposure compensation for image capture devices |
| US7697836B2 (en) | 2006-10-25 | 2010-04-13 | Zoran Corporation | Control of artificial lighting of a scene to reduce effects of motion in the scene on an image being acquired |
| US8482620B2 (en) | 2008-03-11 | 2013-07-09 | Csr Technology Inc. | Image enhancement based on multiple frames and motion estimation |
| US8497878B2 (en) * | 2008-11-04 | 2013-07-30 | Texas Instruments Incorporated | Method and apparatus for determining image orientation |
| KR20100077367A (ko) * | 2008-12-29 | 2010-07-08 | 주식회사 동부하이텍 | 화질 개선 장치 및 화질 개선 방법 |
| JP6223028B2 (ja) * | 2013-07-11 | 2017-11-01 | キヤノン株式会社 | 撮像装置、制御方法及びそのプログラム |
| JP2017118254A (ja) * | 2015-12-22 | 2017-06-29 | オリンパス株式会社 | 画像処理装置、画像処理プログラム、画像処理方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5638118A (en) * | 1987-06-09 | 1997-06-10 | Canon Kabushiki Kaisha | Image sensing device with diverse storage times used in picture composition |
| US4969045A (en) * | 1988-05-20 | 1990-11-06 | Sanyo Electric Co., Ltd. | Image sensing apparatus having automatic iris function of automatically adjusting exposure in response to video signal |
| US5283635A (en) * | 1988-06-03 | 1994-02-01 | Canon Kabushiki Kaisha | White balance adjusting device with plural thresholds for range control |
| US5831676A (en) * | 1992-08-19 | 1998-11-03 | Canon Kabushiki Kaisha | Image pickup device using plural control parameters for exposure control |
| US5233428A (en) * | 1991-11-05 | 1993-08-03 | Loral Fairchild Systems | Electronic exposure control system for a solid state imager |
| EP0719039A3 (en) * | 1992-08-10 | 1998-03-11 | Sony Corporation | Electronic shutter time control with noise suppression for a video camera |
| US5990469A (en) * | 1997-04-02 | 1999-11-23 | Gentex Corporation | Control circuit for image array sensors |
| US6750906B1 (en) * | 1998-05-08 | 2004-06-15 | Cirrus Logic, Inc. | Histogram-based automatic gain control method and system for video applications |
-
2001
- 2001-03-22 US US09/815,019 patent/US6943832B2/en not_active Expired - Lifetime
-
2002
- 2002-01-24 EP EP02001704A patent/EP1244293A1/en not_active Ceased
- 2002-03-20 JP JP2002077689A patent/JP4196023B2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002359756A (ja) | 2002-12-13 |
| US20040201718A1 (en) | 2004-10-14 |
| US6943832B2 (en) | 2005-09-13 |
| EP1244293A1 (en) | 2002-09-25 |
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