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1.发明公开
公开(公告)号：KR20070089085A
公开(公告)日：2007-08-30
申请号：KR20070019389
申请日：2007-02-27
Applicant: SONY CORP
Inventor： KATO FUMIAKI , NAKAJIMA KEN
IPC: H04N5/225 , H04N5/232 , H04N5/335 , H04N7/26 , H04N19/00 , H04N19/136 , H04N19/176 , H04N19/196 , H04N19/423 , H04N19/85 , H04N19/90 , H04N19/91 , H04N19/98 , H04N101/00
CPC classification number: H04N19/98 , H04N5/335 , H04N5/772 , H04N5/775 , H04N5/85 , H04N5/907 , H04N9/7921 , H04N9/8047 , H04N2101/00 , H04N2201/0084
Abstract: An image capturing apparatus, an image capturing circuit and an image capturing method are provided to compress image data capable of reading and writing in a memory when image quality compensating processes of captured image data are performed in a signal processing unit, thereby reducing the reading and writing time of image data in a memory. An image capturing apparatus using a solid state image capturing element comprises the following parts: a compressing unit(31) for compressing digital-converted image data which is imaged by the solid state image capturing element; a memory(14) for temporary maintaining the compressed image data by the compressing unit; an extending unit(32) for extending the compressed image data read by the memory; and a signal processing unit(22) for performing image quality compensating process of the extended image data by the extending unit.
Abstract translation: 提供一种图像捕获装置，图像捕获电路和图像捕获方法，用于在信号处理单元中执行拍摄图像数据的图像质量补偿处理时，将能够读取和写入存储器的图像数据压缩，从而减少读取和 将图像数据的时间写入存储器。 使用固态图像捕获元件的图像捕获装置包括以下部分：用于压缩由固态图像捕获元件成像的数字转换图像数据的压缩单元（31）; 用于由压缩单元暂时保持压缩图像数据的存储器（14）; 扩展单元（32），用于扩展由存储器读取的压缩图像数据; 以及用于通过扩展单元执行扩展图像数据的图像质量补偿处理的信号处理单元（22）。
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2.发明公开DIGITAL STILL CAMERA APPARATUS, VIDEO CAMERA APPARATUS, AND INFORMATION TERMINAL APPARATUS 审中-公开数字静像相机设备，摄像装置及INFORMATIONSENDGERûTEVORRICHTUNG
公开(公告)号：EP1534003A4
公开(公告)日：2009-09-09
申请号：EP03736109
申请日：2003-06-09
Applicant: SONY CORP
Inventor： KAWANISHI ISAO , NAKAJIMA KEN
CPC classification number: H04N5/3595 , H04N5/2352 , H04N9/045
Abstract: In an imaging device control system of an electronic shutter/lens diaphragm/automatic gain control, an automatic exposure adjustment control is realized, without influence of smear, by precisely calculating the smear amount even in a case of occurrence of a weak smear that has not reached a saturation level, without taking any measures to variation of dark current of a vertical OP, behavior of dark noise, and defect pixels of the vertical OP. When a smear is detected, a first electronic shutter speed and a first lens diaphragm value are measured, and first color information integrated values of red, green and blue are measured in the respective predetermined colorimetric areas of the effective pixel range of imaging means. The electronic shutter speed is delayed by a predetermined amount so as to obtain the same exposure amount as of the first electronic shutter speed and first lens diaphragm value. The lens diaphragm is contracted in accordance with the predetermined amount. Then, second color information integrated values of red, green and blue are measured in the colorimetric areas, and the smear amount is calculated from the color information integrated values of red, green and blue.
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公开(公告)号：DE60200579T2
公开(公告)日：2005-06-16
申请号：DE60200579
申请日：2002-02-20
Applicant: SONY CORP
Inventor： NAKAJIMA KEN , MITSUI SATOSHI
Abstract: The present invention relates to an image noise reduction method and apparatus to be preferably used to digitize and process, for example, an image signal. Therefore, in the case of the present invention, level values a to h of peripheral pixels and the level value o of a watched pixel are respectively input to, for example, eight comparators 11 and the value "1" is output when absolute values of differences between the level values are smaller than the value of a reference level &thetas;. Moreover, peripheral pixels at point-symmetric positions about the watched pixel o are combined and signals output from the comparators 11 are supplied to four AND circuits 12 in accordance with combinations. Then, signals output from the AND circuits 12 are supplied to eight AND gates 13 in accordance with each combination and level values a to h of corresponding peripheral pixels are output to output ports 3 through the AND gates 13 when signals output from the AND circuits 12 respectively have the value "1". Moreover, signals output from the AND circuits 12 are supplied to an adder 14, the addition output is doubled by a multiplier 15, and the value "1" is added to the multiplication value and output to an output port 4. Thereby, it is possible to perform the averaging operation by using only pixels in which pixels at point-symmetric positions about, for example, a watched pixel are combined and both are selected and thereby, it is possible to solve the problem that an averaged signal phase is deviated from an original position.
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公开(公告)号：MY123338A
公开(公告)日：2006-05-31
申请号：MYPI9902886
申请日：1999-07-09
Applicant: SONY CORP
Inventor： TAKEZAWA MASAYUKI , MIZUTANI YOICHI , MATSUMOTO HIDEKI , NAKAJIMA KEN , YAMAMOTO TOSHIHISA
Abstract: IN AN IMAGING APPARATUS, AN IMAGE IS TO BE DISPLAYED IN REAL-TIME ON A FINDER. IN THE FINDER MODE,A CCD INTERFACE (21A) THINS OUT HORIZONTAL COMPONENTS OF IMAGE DATA SUPPLIED FROM AN IMAGE GENERATING UNIT (10) TO ONE-THIRD AND ALSO EFFECTS GAMMA CORRECTION ETC TO SEND THE RESULTING IMAGE DATA A CAMERA DSP (21C). THE CAMERA DSP (21C) EFFECTS DATA CONVERSION AND RESOLUTION CONVERSION ON THE IMAGE DATA RESULTING FROM THE THINNING TO CONVERT THE DATA INTO Y, CB AND IMAGE DATA WHICH IS ROUTED TO A MEMORY CINTROLLER (22). THE MEMORY CONTROLLER (22) WRITES THE IMAGE DATA IN THE IMAGE MEMORY (32) AND READS OUT THE DATA FROM THE MEMORY CONTROLLER 22 TO ROUTE THE READ-OUT DATA OVER AN IMAGE DATA BUS (33) TO AN NTSC/PAL ENCODER (23) CONVERTS THE IMAGE DATA IN RESOLUTION AND FURTHER CONVERTS THE IMAGE DATA INTO DATA OF THE NTSC OR PAL SYSTEM TO ROUTE THE RESULTING DATA TO A FINDER.FIGURE 3
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公开(公告)号：DE60200579D1
公开(公告)日：2004-07-08
申请号：DE60200579
申请日：2002-02-20
Applicant: SONY CORP
Inventor： NAKAJIMA KEN , MITSUI SATOSHI
Abstract: The present invention relates to an image noise reduction method and apparatus to be preferably used to digitize and process, for example, an image signal. Therefore, in the case of the present invention, level values a to h of peripheral pixels and the level value o of a watched pixel are respectively input to, for example, eight comparators 11 and the value "1" is output when absolute values of differences between the level values are smaller than the value of a reference level &thetas;. Moreover, peripheral pixels at point-symmetric positions about the watched pixel o are combined and signals output from the comparators 11 are supplied to four AND circuits 12 in accordance with combinations. Then, signals output from the AND circuits 12 are supplied to eight AND gates 13 in accordance with each combination and level values a to h of corresponding peripheral pixels are output to output ports 3 through the AND gates 13 when signals output from the AND circuits 12 respectively have the value "1". Moreover, signals output from the AND circuits 12 are supplied to an adder 14, the addition output is doubled by a multiplier 15, and the value "1" is added to the multiplication value and output to an output port 4. Thereby, it is possible to perform the averaging operation by using only pixels in which pixels at point-symmetric positions about, for example, a watched pixel are combined and both are selected and thereby, it is possible to solve the problem that an averaged signal phase is deviated from an original position.
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Patent Agency Ranking
公开(公告)号：EP1489836A4
公开(公告)日：2006-08-02
申请号：EP03710248
申请日：2003-03-05
Applicant: SONY CORP
Inventor： OKADA MIYUKI , NAKAJIMA KEN
CPC classification number: H04N5/772 , H04N5/23248 , H04N5/23254 , H04N5/23258 , H04N5/23267 , H04N5/23287 , H04N5/775 , H04N5/781 , H04N5/907 , H04N9/045 , H04N9/8205
Abstract: Quality deterioration caused by a small-sized pickup lens can be corrected by a processing of a picked up image signal and can perform preferable correction when performing camera shake correction. An output signal from a camera signal processing circuit (4) is selected by a selector switch (5) and supplied to a chromatic aberration correction unit (6). On the other hand, an angular speed by camera shake is detected by using sensors (7P, 7Y) and supplied to a camera shake correction vector calculation unit (9). Moreover, a drive state of a pickup lens (1) is supplied to a conversion ratio calculation unit (10). The shift vector at the center of the optical axis of the pickup lens (1) is calculated from the camera shake correction vector and supplied to the chromatic aberration correction unit (6). Moreover, the conversion ratio for each color is supplied to the chromatic aberration correction unit (6). Furthermore, the signal which has been corrected by the chromatic aberration correction unit (6) is compressed and supplied to a recording/reproduction device (17) to a recording medium. Moreover, the reproduction signal from the recording/reproduction device (17) is decompressed and supplied to the selector switch (5).
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公开(公告)号：EP1359745A4
公开(公告)日：2005-04-06
申请号：EP02712290
申请日：2002-02-07
Applicant: SONY CORP
Inventor： SATO NOBUYUKI , NAKAJIMA KEN
IPC: G03B19/02 , G06T1/00 , H04N1/401 , H04N5/16 , H04N5/225 , H04N5/335 , H04N5/361 , H04N5/372 , H04N5/376 , H04N5/217
CPC classification number: H04N5/3572
Abstract: A screen correcting method and an imaging device preferably used for, e.g., a digital camera. The horizontal and vertical counts are supplied to a distance calculating block (4) from a signal generator (SG) (1). The distance to the optical axis center position information fed through the terminal (5X, 5Y) is calculated. The calculated distance d is supplied to a converter (conv) (6). The value of the distance converted in accordance with the information on the number of pixels of a semiconductor imaging device (CCD) (3) from a terminal (7) is supplied to a lookup table (LUT) (8). For example, a correction coefficient according to the distance to the position of the optical axis center is extracted. The correction coefficient is supplied to a correction block (9), and the signal of each pixel read from the semiconductor imaging device (3) is corrected. Thus, correction of, e.g., the lens shading is carried out by calculating the distance with a simple hardware structure, and the same circuit can be adaptively used even if, for example, the number of pixels of an imaging unit is different.
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公开(公告)号：DE60230481D1
公开(公告)日：2009-02-05
申请号：DE60230481
申请日：2002-02-07
Applicant: SONY CORP
Inventor： SATO NOBUYUKI , NAKAJIMA KEN
IPC: G03B19/02 , H04N1/401 , G06T1/00 , H04N5/16 , H04N5/225 , H04N5/335 , H04N5/361 , H04N5/372 , H04N5/376
Abstract: This invention relates to a screen correction method and image pick-up device suitable for use in, for example, digital cameras. In this invention, horizontal and vertical signals from a signal generator (SG) 1 are supplied to a semiconductor image pick-up device (CCD) 3 via a timing generator (TG) 2. Horizontal and vertical counter values from the signal generator 1 are supplied to a distance calculation block 4, and the distance from optical axis center position information, provided from terminals 5X, 5Y, is calculated. This calculated distance value d is supplied to a converter (conv) 6, and a distance value, converted according to information from the terminal 7 on the number of pixels of the semiconductor image pick-up device 3, is supplied to a lookup table (LUT) 8, to output the correction coefficients according to the distance from, for example, the optical axis center position. These correction coefficients are supplied to the correction block 9, and correction of signals for each pixel read from the semiconductor image pick-up device 3 is performed. The corrected signals are supplied to the camera signal processing block 10, and the output image signals (Y/C output signals) are output to the terminal 11. By this means, a simple hardware construction can be used to perform distance calculations and execute corrections of lens shading and others, so that the same circuit can be used to accommodate image pick-up units with different numbers of pixels, and there is no need to design new circuits or similar; also, problems of redundant circuits and extremely large numbers of correction coefficients can be eliminated.
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公开(公告)号：EP1355272A4
公开(公告)日：2009-07-15
申请号：EP02711216
申请日：2002-01-23
Applicant: SONY CORP
Inventor： SATO NOBUYUKI , NAKAJIMA KEN
CPC classification number: H04N5/3572 , G06T5/006 , G06T7/00
Abstract: The distance between a point corresponding to the optical axis of a lens system of an image unit and a desired point is calculated, and shading correction considering the distance is carried out. The distance values x, y on a coordinate system are determined, and a calculation formula approximated with a given polygon is used to calculate the distance from the distance value x, y accurately with a simple hardware system.
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公开(公告)号：EP1387574A4
公开(公告)日：2006-08-02
申请号：EP02762990
申请日：2002-09-03
Applicant: SONY CORP
Inventor： NAKAJIMA KEN , SATO NOBUYUK
IPC: H01L27/14 , G06T5/00 , G06T7/00 , G06T7/60 , H04N5/335 , H04N5/357 , H04N5/361 , H04N5/365 , H04N5/367 , H04N5/369 , H04N5/372 , H04N5/374 , H04N5/378
CPC classification number: H04N5/361
Abstract: An imaging device in which noise due to a dark signal from a solid state image sensor can be removed. An image signal (A2) obtained through normal imaging is stored in an image memory, and an image signal (B2) obtained by closing a shutter immediately thereafter is stored in the image memory. Subsequently, the image signals (A2) and (B2) are delivered to a preprocessing circuit (6a) through a memory controller (6c). An operating circuit (61) subtracts the image signal (B2) from the image signal (A2) thus removing the fixed pattern noise and the offset component. A bright point sensing circuit (62) determines the generating position of bright point noise from the image signal (B2) and outputs a timing pulse (T1) in response to the determination. Synchronously with the timing pulse (T1), a dark point correction circuit (63) detects a pixel possibly generating dark point noise in an image signal (C1) outputted from the operating circuit (61) and corrects that pixel using the data on a nearby pixel.
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