CN1378390A - 照相机和处理该装置拍摄图象的方法 - Google Patents

照相机和处理该装置拍摄图象的方法 Download PDF

Info

Publication number
CN1378390A
CN1378390A CN02118350A CN02118350A CN1378390A CN 1378390 A CN1378390 A CN 1378390A CN 02118350 A CN02118350 A CN 02118350A CN 02118350 A CN02118350 A CN 02118350A CN 1378390 A CN1378390 A CN 1378390A
Authority
CN
China
Prior art keywords
branch road
spectrum
photo
transducer
sensitive cell
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
Application number
CN02118350A
Other languages
English (en)
Other versions
CN1215722C (zh
Inventor
F·波姆伯德
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.)
Entropic Communications LLC
Original Assignee
Koninklijke Philips Electronics NV
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
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of CN1378390A publication Critical patent/CN1378390A/zh
Application granted granted Critical
Publication of CN1215722C publication Critical patent/CN1215722C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/40Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled
    • H04N25/44Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array
    • H04N25/447Extracting pixel data from image sensors by controlling scanning circuits, e.g. by modifying the number of pixels sampled or to be sampled by partially reading an SSIS array by preserving the colour pattern with or without loss of information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/10Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
    • H04N25/11Arrangement of colour filter arrays [CFA]; Filter mosaics
    • H04N25/13Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements
    • H04N25/134Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on three different wavelength filter elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Color Television Image Signal Generators (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

一种照相机,它以传感器(3)的形式由感光元件组成,使各种彩色成分在空间各频率的整个光谱中可视地显示,并包括至少一个用于在低频光谱中为了处理来自所述感光元件信号的第一滤光装置(10),该装置本质上包括一个其中插入所述第一滤光器件(10)的第一支路(B1),和一个为了对来自所述元件的所有信号滤光用于光谱的高频部分的其中插入第二滤光器件(12)的第二支路(B2)及一个用于提供考虑到所述支路输出信号的图象的结合器件。以这种方式可获得高清晰度的图象。

Description

照相机和处理该装置拍摄图象的方法
技术领域
本发明涉及一种照相机,它以传感器的形式由感光元件组成,使各种彩色成分在空间各频率的整个光谱中可视地显示,并包括至少一个用于在低频光谱中处理来自所述感光元件信号的第一滤光装置。
本发明还涉及一种处理由该装置拍摄的图象的方法。
背景技术
这种类型的装置在日本专利文献07-284110中已被公开。在该文献中,为了增加从视场获得的图象的清晰度,提出对图象的各种彩色成分进行滤光。
发明内容
本发明提出一种前面提及类型的装置,该装置在滤光方面得到明显地简化并且无须使用过多的滤光计算即产生一个高分辨率的图象。
为实现该目的,这种装置的特征是具有一个其中插入所述第一滤光器件的第一支路,至少其中插入一个为了对来自所述元件的所有信号滤光用于光谱高频部分的第二滤光器件的第二支路和一个用于提供考虑到所述支路输出信号的图象的结合器件。
这种装置的使用方法的特征包括如下步骤:
—由感光元件组成的传感器感应视场的各种彩色成分,
—由对感光元件颜色起作用的第一处理支路处理来自该传感器的信息,
—由在不考虑颜色下对所有元件起作用和对空间光谱中的上部起作用的第二处理支路处理来自该传感器的信息,
—为了提供有用图象结合由所述支路产生的信息的不同项。
本发明的构思是包括增加了未考虑颜色的图象信息并利用传感器上的所有点。人眼对亮度变化比对颜色变化更敏感。
附图说明
本发明将通过附图中示出的相关实施例作进一步描述,但是不作为对本发明的限定:
图1是表示根据本发明装置的示意图。
图2更详细地显示了根据本发明装置的构造。
图3显示了由根据本发明处理的空间光谱的略图。
图4是表示用于根据本发明装置的光谱形成部分的高频滤光器件的设计实施例。
具体实施方式
图1是根据本发明的照相机。参考号3表示包括多个不同彩色成分的感光元件的传感器。在图2中对传感器作了更详细的图示,目标4通过透镜5聚焦在该传感器上。
以水平H和垂直V的方向设置在一个矩阵中的该传感器的各个元件对三原色感光:
—蓝色,在图2中这些元件由字母“B”表示
—红色,在图2中这些元件由字母“R”表示
—绿色,在图2中这些元件由字母“G”表示
在传感器的输出端,可以收集与每个所述彩色成分一致的不同信号。这些不同的彩色成分由所述第一滤光器件10(图1)进行滤光操作,对于这种类型的装置该操作包括标准的二维2D滤光,并且其目的是防止由光谱重叠引起的波纹感。在支路B1中还插入了色彩再现滤光器11。该滤光器可调整色彩的感觉。
根据本发明所述滤光器10置于第一支路B1中,而用于改进图象清晰度的第二滤光器件12插入在第二支路B2中。在不考虑传感器所有元件感光的各种彩色成分下滤光器件12对传感器3的所有元件的信号起作用。
结合器件16结合了来自支路B1和B2的各种信号,该结合是将一方面来自轮廓改进滤光器的信号和另一方面来自支路B1相应每个彩色成分的信号简单相加。由所设置的三个加法器21,22和23进行该运算。
人们希望以公知的Y,U,V形式表示的图象信息代替以所述三原色红,绿和蓝成分表示的图象信息。这些不同成分Y,U,V分别代表亮度,有关红色的信息和有关蓝色的信息。这种Y,U,V形式特别适用于电视信号。这一工作是由转换器25进行的。如果仅涉及信号R,G,B是优选的,那么该转换器25可以认为是一个单一的滤光矩阵,并因此不进行转换。这样处理的信息最后存在存储器30中,可由此取出拍摄的图像。
将讨论不同处理器件10,12的设计。
—器件10
器件10的目的是根据图3中参考号G1所显示的样板过滤图象。图3所示的是在所述H和V方向中不同光谱在四分之一空间的概略图。它是一个允许小于Fs/4的光谱成分通过的低通滤光器。
1/Fs表示像素之间的距离(图2)。样板G2表示像素G上的滤光,该像素G由图2显示矩阵上的分布是理想的。
—器件12
器件12的目的是根据图3中参考号G3所显示的样板过滤图象。它是一个允许大于Fs/4及小于Fs/2的光谱成分通过的带通滤光器。它与两个增益GR和GB相关联的。该增益用于补偿与滤光器G相关的彩色滤光器R和B的性能的差异。在具体生产该带通滤光器时,如图4所示,为了过滤被认为是截止频率的成分Fs/4和Fs/2分别利用两个低通滤光器33和31,和一个用于在这些滤光器输出端的信号中除去光谱0-Fs/4对0-Fs/2的低通滤光器的光谱成分的影响的减法器件35。

Claims (3)

1、一种照相机,它以传感器的形式由感光元件组成,使各种彩色成分在空间各频率的整个光谱中可视地显示,并包括至少一个用于在低频光谱中为了处理来自所述感光元件信号的第一滤光装置,其特征在于具有一个其中插入所述第一滤光器件的第一支路,至少其中插入一个为了对来自所述元件的所有信号滤光用于光谱的高频部分的第二滤光器件的第二支路和一个用于提供考虑到所述支路的输出信号图象的结合器件。
2、经过权利要求1所示的照相机,其特征在于所述第二滤光器件包括两个低通滤光器,一个用窄频谱和另一个用宽频谱,及一个减法器件用于除去在宽频谱滤光器所滤光谱中的低通滤光的成分的减法器件。
3、一种照相方法,其特征在于包括如下步骤:
—由感光元件组成的传感器感应视场的各种彩色成分,
—由对感光元件颜色起作用的第一处理支路处理来自该传感器的信息,
—由在不考虑颜色下对所有元件起作用和对空间光谱中的上部起作用的第二处理支路处理来自该传感器的信息,
—为了提供有用图象结合由所述支路产生信息的不同项。
CNB021183503A 2001-03-27 2002-03-23 照相机和处理该装置拍摄图象的方法 Expired - Fee Related CN1215722C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0104110 2001-03-27
FR01/04110 2001-03-27

Publications (2)

Publication Number Publication Date
CN1378390A true CN1378390A (zh) 2002-11-06
CN1215722C CN1215722C (zh) 2005-08-17

Family

ID=8861585

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB021183503A Expired - Fee Related CN1215722C (zh) 2001-03-27 2002-03-23 照相机和处理该装置拍摄图象的方法

Country Status (4)

Country Link
US (1) US20020154230A1 (zh)
EP (1) EP1246474A1 (zh)
JP (1) JP4157927B2 (zh)
CN (1) CN1215722C (zh)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971065A (en) * 1975-03-05 1976-07-20 Eastman Kodak Company Color imaging array
US4176373A (en) * 1977-07-06 1979-11-27 Eastman Kodak Company Signal processing for discrete-sample-type-color-video signal
US4891695A (en) * 1988-02-23 1990-01-02 Olympus Optical Co. Ltd. Electronic endoscope apparatus provided with a plurality of endoscopes having solid state imaging devices with at least one identical pixel forming element
US5081521A (en) * 1990-04-13 1992-01-14 Faroudja Y C NTSC color television system with improved chroma bandwidth and chroma ringing reduction
US5235413A (en) * 1991-07-26 1993-08-10 Tektronix, Inc. Method and apparatus for processing component signals to preserve high frequency intensity information
JP3184309B2 (ja) * 1992-07-10 2001-07-09 松下電器産業株式会社 階調補正回路及び撮像装置
US5541648A (en) * 1992-10-09 1996-07-30 Canon Kabushiki Kaisha Color image pickup apparatus having a plurality of color filters arranged in an offset sampling structure
US6147707A (en) * 1996-02-06 2000-11-14 Canon Kabushiki Kaisha Method and apparatus for gain adjustment of an image sensor
JPH09261481A (ja) * 1996-03-22 1997-10-03 Toshiba Corp 画像形成装置
US5880767A (en) * 1996-09-11 1999-03-09 Hewlett-Packard Company Perceptual image resolution enhancement system
JP3787927B2 (ja) * 1996-11-18 2006-06-21 ソニー株式会社 撮像装置及びカラー画像信号の処理方法
US6201582B1 (en) * 1997-09-19 2001-03-13 Philips Electronics North America Corporation Circuit for moiré suppression
US6937277B1 (en) * 1998-04-24 2005-08-30 Canon Kabushiki Kaisha Image input apparatus employing read region size determination
US6411305B1 (en) * 1999-05-07 2002-06-25 Picsurf, Inc. Image magnification and selective image sharpening system and method
US6614944B1 (en) * 2000-02-10 2003-09-02 Oak Technology, Inc. Image enhancement filter with adaptive threshold

Also Published As

Publication number Publication date
JP4157927B2 (ja) 2008-10-01
JP2002344983A (ja) 2002-11-29
EP1246474A1 (fr) 2002-10-02
CN1215722C (zh) 2005-08-17
US20020154230A1 (en) 2002-10-24

Similar Documents

Publication Publication Date Title
Brauers et al. A color filter array based multispectral camera
US6078307A (en) Method for increasing luminance resolution of color panel display systems
JP4688432B2 (ja) ディスプレイ解像度を改善するためのシステム
Daly 47.3: Analysis of subtriad addressing algorithms by visual system models
US6181376B1 (en) Method of determining missing color values for pixels in a color filter array
TWI468021B (zh) 影像感測器件及使用照度及色度感測器之影像擷取之方法
TWI542223B (zh) 利用全彩影像之雜訊減低彩色影像
EP2089848B1 (en) Noise reduction of panchromatic and color image
US7844127B2 (en) Edge mapping using panchromatic pixels
DE112009005418B4 (de) Bildverarbeitungsgerät
RU2290769C9 (ru) Способ автостереоскопического воспроизведения изображения с помощью матрицы волновых фильтров
US20040075755A1 (en) Method for interpolation and sharpening of images
JP2009511960A (ja) 高機能カラーフィルタモザイクアレイのためのシステムおよび方法
EP2090092A2 (en) Providing a desired resolution color image
EP2130175A2 (en) Edge mapping incorporating panchromatic pixels
US20080291268A1 (en) Rendering of Image Data for Multi-View Display
US20050029456A1 (en) Sensor array with a number of types of optical sensors
US20090046182A1 (en) Pixel aspect ratio correction using panchromatic pixels
CN1147131C (zh) 图像处理装置和处理方法
EP1575304A1 (en) Color imaging element, color filter array, and color imaging device
CN1215722C (zh) 照相机和处理该装置拍摄图象的方法
CN1230004C (zh) 带有轮廓改进电路的照相机和该装置的使用方法
US7986857B2 (en) Apparatus and method for generating image using multi-channel filter
EP0384701B1 (en) Solid state image pick-up apparatus
Rovid et al. Gradient based synthesized multiple exposure time HDR image

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CI01 Publication of corrected invention patent application

Correction item: Inventor

Correct: F. Bohm Lampard

False: F. Bohm Byrd

Number: 33

Page: 809

Volume: 21

CI03 Correction of invention patent

Correction item: Inventor

Correct: F. Bohm Lampard

False: F. Bohm Byrd

Number: 33

Page: The title page

Volume: 21

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: F.BOHMBERD TO: F.BOMPAD

ERR Gazette correction

Free format text: CORRECT: INVENTOR; FROM: F.BOHMBERD TO: F.BOMPAD

ASS Succession or assignment of patent right

Owner name: NXP CO., LTD.

Free format text: FORMER OWNER: ROYAL PHILIPS ELECTRONICS CO., LTD.

Effective date: 20070921

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20070921

Address after: Holland Ian Deho Finn

Patentee after: Koninkl Philips Electronics NV

Address before: Holland Ian Deho Finn

Patentee before: Koninklike Philips Electronics N. V.

ASS Succession or assignment of patent right

Owner name: TRIDENT MICROSYSTEMS (FAR EAST)CO., LTD.

Free format text: FORMER OWNER: KONINKL PHILIPS ELECTRONICS NV

Effective date: 20100819

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: EINDHOVEN, NETHERLANDS TO: CAYMAN ISLANDS, GRAND CAYMAN ISLAND

TR01 Transfer of patent right

Effective date of registration: 20100819

Address after: Grand Cayman, Cayman Islands

Patentee after: Trident Microsystems (Far East) Ltd.

Address before: Holland Ian Deho Finn

Patentee before: Koninkl Philips Electronics NV

ASS Succession or assignment of patent right

Owner name: ENTROPY COMMUNICATION CO., LTD.

Free format text: FORMER OWNER: TRIDENT MICROSYSTEMS (FAR EAST) LTD.

Effective date: 20130221

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20130221

Address after: American California

Patentee after: Entropic Communications, Inc.

Address before: Grand Cayman, Cayman Islands

Patentee before: Trident Microsystems (Far East) Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20050817

Termination date: 20170323

CF01 Termination of patent right due to non-payment of annual fee