KR101483714B1 - 디지털 촬상 장치 및 방법 - Google Patents
디지털 촬상 장치 및 방법 Download PDFInfo
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- KR101483714B1 KR101483714B1 KR20080057363A KR20080057363A KR101483714B1 KR 101483714 B1 KR101483714 B1 KR 101483714B1 KR 20080057363 A KR20080057363 A KR 20080057363A KR 20080057363 A KR20080057363 A KR 20080057363A KR 101483714 B1 KR101483714 B1 KR 101483714B1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- 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
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Abstract
Description
목표 공간 분해능 |
1400×1400 | 700×700 | 350×350 | 300×300 |
허용 Δx | 27㎛ (3 픽셀) |
54㎛ (6 픽셀) |
108㎛ (12 픽셀) |
126㎛ (14 픽셀) |
필요 Nu | 58개 | 30개 | 15개 | 13개 |
Claims (10)
- 캡처된 영상 뷰 변화 및 리포커싱을 하기 위하여 광 필드 데이터를 획득하는 촬상부; 및상기 획득된 광 필드 데이터를 이용하여 리포커싱 영상을 계산하는 데이터 처리부를 포함하고,상기 촬상부는 적어도 2 이상의 광선들이 중첩되더라도 구별가능하도록 상기 광선들에 광 변조를 수행하여 상기 광 필드 데이터를 획득하고, 상기 데이터 처리부는 상기 획득된 광 필드 데이터를 복조하여 원래의 광선들에 대한 광 필드 데이터를 획득하는 것을 특징으로 하는 디지털 촬상 장치.
- 제1항에 있어서, 상기 촬상부는,메인 렌즈;상기 광 변조를 수행하는 변조부;광선들을 캡처하는 포토 센서 어레이; 및상기 메인 렌즈와 상기 포토 센서 어레이 사이에 마이크로렌즈 어레이를 더 포함하고,상기 마이크로렌즈 어레이는 상기 광선들을 물리적으로 상기 메인 렌즈로부터 상기 마이크로 렌즈 어레이 또는 광 부호화 마스크를 통해 상기 포토 센서 어레이로 향하게 하는 것을 특징으로 하는 디지털 촬상 장치.
- 제2항에 있어서,상기 변조부는 상기 광선들을 2 이상의 직교 함수를 이용하여 변조하는 2차원 직교 마스크인 것을 특징으로 하는 디지털 촬상 장치.
- 제3항에 있어서,상기 변조부는 광선들의 투과율을 조절하는 패턴을 포함하는 것을 특징으로 하는 디지털 촬상 장치.
- 제2항에 있어서,상기 마이크로렌즈 어레이에 포함된 각각의 마이크로렌즈는 상기 광 변조가 수행된 적어도 2개의 광선들을 상기 포토센서의 하나의 픽셀에 중첩하도록 하는 것을 특징으로 하는 디지털 촬상 장치.
- 제3항에 있어서,상기 데이터 처리부는 상기 광 변조가 수행되어 획득된 광 필드 데이터를 상기 직교 함수를 이용하여 복조하는 것을 특징으로 하는 디지털 촬상 장치.
- 적어도 2 이상의 광선들이 중첩되더라도 구별가능하도록 상기 광선들에 광 변조를 수행하는 단계;상기 광 변조가 수행된 광선들로부터 캡처된 영상의 리포커싱을 하기 위하여 광 필드 데이터를 획득하는 단계;상기 광 필드 데이터를 복조하여 변조 전의 원래의 광선들로부터 획득되는 광 필드 데이터를 생성하는 단계; 및상기 생성된 광 필드 데이터를 이용하여 리포커싱 영상을 계산하는 단계를 포함하는 것을 특징으로 하는 디지털 촬상 방법.
- 제7항에 있어서,상기 광 변조를 수행하는 단계는, 광선들을 2 이상의 직교 함수를 이용하여 변조하는 2차원 직교 마스크를 이용하여 수행되는 것을 특징으로 하는 디지털 촬상 방법.
- 제8항에 있어서,상기 2차원 직교 마스크는 광선들의 투과율을 조절하는 패턴을 포함하는 것을 특징으로 하는 디지털 촬상 방법.
- 제8항에 있어서,상기 광 필드 데이터를 복조하는 단계는,상기 직교 함수들을 이용하여 상기 광 변조가 수행되어 획득된 광 필드 데이터를 복조하는 것을 특징으로 하는 디지털 촬상 방법.
Priority Applications (2)
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KR20080057363A KR101483714B1 (ko) | 2008-06-18 | 2008-06-18 | 디지털 촬상 장치 및 방법 |
US12/379,543 US8427548B2 (en) | 2008-06-18 | 2009-02-24 | Apparatus and method for capturing digital images |
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KR20080057363A KR101483714B1 (ko) | 2008-06-18 | 2008-06-18 | 디지털 촬상 장치 및 방법 |
Publications (2)
Publication Number | Publication Date |
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KR20090131466A KR20090131466A (ko) | 2009-12-29 |
KR101483714B1 true KR101483714B1 (ko) | 2015-01-16 |
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KR20080057363A Expired - Fee Related KR101483714B1 (ko) | 2008-06-18 | 2008-06-18 | 디지털 촬상 장치 및 방법 |
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US (1) | US8427548B2 (ko) |
KR (1) | KR101483714B1 (ko) |
Cited By (1)
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KR20160128772A (ko) | 2015-04-29 | 2016-11-08 | 주식회사 큐티아이 | 플레놉틱 카메라 원리를 이용한 디지털 촬상 장치 |
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KR20070106613A (ko) * | 2005-01-18 | 2007-11-02 | 리어덴 엘엘씨 | 부호화 렌즈 영상화 기술을 이용하여 스틸 이미지들 및비디오를 캡처링 하기 위한 장치 및 방법 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20160128772A (ko) | 2015-04-29 | 2016-11-08 | 주식회사 큐티아이 | 플레놉틱 카메라 원리를 이용한 디지털 촬상 장치 |
KR101683634B1 (ko) | 2015-04-29 | 2016-12-29 | 주식회사 큐티아이 | 플레놉틱 카메라 원리를 이용한 디지털 촬상 장치 |
Also Published As
Publication number | Publication date |
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KR20090131466A (ko) | 2009-12-29 |
US20090316014A1 (en) | 2009-12-24 |
US8427548B2 (en) | 2013-04-23 |
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