公开(公告)号：EP1508827A4

公开(公告)日：2007-09-19

申请号：EP03730653

申请日：2003-05-28

Applicant: SONY CORP

Inventor： KUMAKI JINYO ,  TAKEMOTO SATOSHI ,  KUSHIDA HIDENORI

IPC: H04N5/217 ,  H04N5/232 ,  G02B7/28 ,  G03B3/00 ,  G03B5/00

CPC classification number: H04N5/23248 ,  H04N5/23212

Abstract: An imaging device having an automatic focusing function with improved accuracy corresponding to the object when fill light is projected, a signal processing method, a recording medium, and a program are disclosed. A microcomputer (13) monitors a fill light control section (15) and judges whether or not a fill light projection flag is on. If the fill light projection flag is on, the microcomputer (13) carries out a controlled variable computation for image blur correction to determine the controlled variable for the image blur correction and outputs the determined controlled variable to a detection section (121). The detection section (121) determines the position of a detection frame for automatic focusing and changes the size or number of the detection frames according to information on zoom magnification to control the position, size, or number of detection frames. The invention can be applied to a camcorder.

公开(公告)号：JPH07240946A

公开(公告)日：1995-09-12

申请号：JP5277194

申请日：1994-02-25

Applicant: SONY CORP

Inventor： TAKEMOTO SATOSHI ,  KAWASHIMA TOSHIYUKI

IPC: H04N17/04

Abstract: PURPOSE:To detect the position information of a displayed image with high accuracy by successively moving an image pickup device to the front faces of respective measuring points and calculating the position information of a moving device concerning the plural measuring points previously set to the displayed image. CONSTITUTION:An image inspecting and adjusting device 1 drives a TV receiver 3 to be measured while using a reference signal outputted from a signal generator 2, pickes up the display image of this receiver 3 simultaneously the driving of the receiver 3 and measures the picture quality of the receiver 3. Then, a central processing unit 11 drives a camera moving mechanism 7 and a zoom lens driving motor 10 according to a previously prescribed processing procedure, generates data for correction by processing image data fetched into a memory 9 and stores these data for correction in a memory 12. Further, the unit 11 drives the mechanism 7 and the motor 10 in a real inspecting process. Thus, image distortion or the like is measured by picking up the image of an entire display screen from a reference position formed on the central front face of the display screen of the receiver 3.

公开(公告)号：JPH1051797A

公开(公告)日：1998-02-20

申请号：JP33860496

申请日：1996-12-18

Applicant: SONY CORP

Inventor： MATSUURA KOJI ,  TAKEMOTO SATOSHI

IPC: H04N9/28

Abstract: PROBLEM TO BE SOLVED: To obtain a calibration data by means of a simple device and method by providing an arithmetic unit and a memory for calibration data, permitting an arithmetic unit to detect a color smear quantity among three primary colors from an image pickup signal against an image of a pattern for calibration data when a whole white is displayed on the screen of a color cathode ray-tube and permitting a memory to store a color smear quantity as a calibration data. SOLUTION: The whole white is displayed on the screen in a state where a pattern sheet for calibration 1 is installed on the color cathode-ray tube 20. A pattern signal generation circuit 25 generates a pattern signal showing the whole white and supplies it to the color cathode-ray tube 20. The pattern for calibration is composed of transparent multiple dots in the black base, for example, and the dots are vertically and laterally arranged. In such a case, the pattern of white dots is obtained. A white dots do not have a color smear and they are in a just convergence state. Thus, deflected quantity obtained by an arithmetic unit 40 shows the color smear error of a convergence adjusting device itself. The deflected quantity is stored in the memory for calibration data 43.

公开(公告)号：JP2006047954A

公开(公告)日：2006-02-16

申请号：JP2004368320

申请日：2004-12-20

Applicant: Sony Corp ,  ソニー株式会社

Inventor： TAKEMOTO SATOSHI

IPC: G02B7/28 ,  G02B7/36 ,  G03B13/36 ,  H04N5/232

CPC classification number: H04N5/23212

Abstract: PROBLEM TO BE SOLVED: To provide an electronic camera and an automatic focusing method capable of performing an accurate auto focus control operation at a high speed.
SOLUTION: A video camera 10 is provided with a lens unit 11 having a focus lens 21 and a lens driving part 22, a C-MOS image sensor 12, a focus evaluation value detection part 15 of producing a focus evaluation value that indicates the degree of focusing of an object image and a controller 16. The controller 16 performs a series of operations consisting of a near side drive of moving the focusing lens to the near side by a specified distance, a near side stop operation of stopping the same for a specified time, a far side drive of moving the same to the far side by a specified distance and a far side stop operation of stopping the same at the far side for a specified time, and repeats a wobbling operation every 2×n field term for the focus lens 21. The controller 16 calculates the amount of change of the focus evaluation value during the wobbling operation and determines the direction toward the focusing. The controller 16 performs a wobbling control so that the central timing in the exposure period of a pixel in a focus detection region is in accord with the central timing in the near side stop operation period and the far side stop operation period.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：提供能够高速执行精确的自动聚焦控制操作的电子照相机和自动聚焦方法。 解决方案：摄像机10设置有具有聚焦透镜21和透镜驱动部22的透镜单元11，C-MOS图像传感器12，焦点评估值检测部15，其产生焦点评估值，该焦点评估值 表示对象图像和控制器16的聚焦程度。控制器16执行一系列操作，其包括将聚焦透镜向近侧移动指定距离的近侧驱动，停止 在指定时间内相同的远端驱动器将其远距离移动一定距离和远侧停止操作，在远侧停止规定时间，并且每2×n重复摆动操作 焦点透镜21的场项。控制器16计算摆动操作期间的焦点评估值的变化量，并确定朝向聚焦的方向。 控制器16执行摆动控制，使得焦点检测区域中的像素的曝光周期中的中心定时与近侧停止操作期间和远侧停止操作期间的中心时刻一致。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JPH09312861A

公开(公告)日：1997-12-02

申请号：JP12858796

申请日：1996-05-23

Applicant: SONY CORP

Inventor： FUJII MASARU ,  TAKEMOTO SATOSHI ,  TAKEUCHI TOKIO

IPC: G09G5/00 ,  H04N17/04

Abstract: PROBLEM TO BE SOLVED: To measure many image quality elements with high accuracy with a small number of image quality sensors by providing an image quality sensor consisting of a fixed focus lens as an image pickup lens and an image quality measuring means based on an image signal from a color video camera. SOLUTION: A CPU 6 controls a signal generator 12 to display a pattern image at each measuring point on a screen of a measured object 1. Next, the entire pattern image shown on a screen of the object 1 is picked up by a color video camera 2, and the image signal is inputted to an image processing circuit 5. After the signal is converted into a digital image signal in an A/D converter 5A, the digital signal is saved in a frame memory 5B. The CPU 6 operates stored data in the memory 5B, calculates a position of each pattern image and makes a monitor 7 show a measured result. An operator watches a shown result and performs image quality adjustment by manually adjusting an image quality adjusting knob of the object 1, or image quality adjustment of the object 1 is automatically performed in response to the measured result.

公开(公告)号：JP2009145913A

公开(公告)日：2009-07-02

申请号：JP2009083782

申请日：2009-03-30

Applicant: Sony Corp ,  ソニー株式会社

Inventor： TAKEMOTO SATOSHI

IPC: G02B7/28 ,  G02B7/36 ,  G03B13/36 ,  H04N5/232

Abstract: PROBLEM TO BE SOLVED: To provide an electronic camera adapted to perform an accurate auto focus control operation at high speed, and to provide an automatic focusing method.
SOLUTION: A video camera 10 comprises: a lens unit 11 having a focusing lens 21 and a drive section 22; a C-MOS image sensor 12; an estimated in focus value detecting section 15 that generates an estimated in focus value indicating the degree of in-focus of the image of the object of shooting, and a controller 16. The controller 16 controls the focusing lens 21 so as to do a wobbling operation of repeating a series of operations including a near side drive operation of driving the focusing lens to move to the near side by a predetermined distance, a near side stop operation of stopping the focusing lens at the near side for a predetermined period of time, a far side drive operation of driving the focusing lens to move to the far side by a predetermined distance and a far side stop operation of stopping the focusing lens at the far side for a predetermined period of time, at every 2×n field periods. The controller 16 determines an in focus direction by computing the quantity of change in the estimated in focus value during the wobbling operation. The controller 16 performs the wobbling control so as to make central timing in the time period of exposure to light of the pixel of the focus detection area agree with central timing of the period of the near side stop operation and that of the period of the far side stop operation.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种适于高速执行精确的自动聚焦控制操作的电子照相机，并提供自动聚焦方法。 解决方案：摄像机10包括：具有聚焦透镜21和驱动部分22的透镜单元11; C-MOS图像传感器12; 估计焦点值检测部分15，其产生指示拍摄对象的图像的对焦程度的聚焦值的估计焦点值检测部分15以及控制器16.控制器16控制聚焦透镜21以进行摆动 重复一系列操作的操作，包括将聚焦透镜驱动到靠近预定距离的近侧驱动操作，将近距离聚焦透镜停止预定时间段的近侧停止操作， 在每2×n个场周期中驱动聚焦透镜向远侧移动预定距离的远侧驱动操作和在远侧停止聚焦透镜预定时间段的远侧停止操作。 控制器16通过计算摆动操作期间估计的聚焦值的变化量来确定聚焦方向。 控制器16执行摆动控制，以使得焦点检测区域的像素的曝光时间中的中心定时与近侧停止操作的周期的中心时间和远侧停止操作的周期的中心定时一致 侧停操作。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2004229001A

公开(公告)日：2004-08-12

申请号：JP2003015164

申请日：2003-01-23

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KUMAKI YASUHIRO ,  NAKAMURA MASAMITSU ,  TAKEMOTO SATOSHI

IPC: G03B7/091 ,  G03B5/00 ,  G03B7/28 ,  H04N5/232

Abstract: PROBLEM TO BE SOLVED: To form an image having focus, exposure, white balance, etc. properly controlled even in the case that hand shake correction is not performed or is insufficient. SOLUTION: Even when an image pickup device 1 is set to a hand shake correction release mode and the position of an image formation area is not moved, hand shake quantity is calculated on the basis of an angular velocity detected by an angular velocity detection part 8, and a control signal generation area is set to a position shifted from a prescribed position by the quantity corresponding to the calculated hand shake quantity. On the basis of an image signal outputted from the control signal generation area, a focus detection part 52, an exposure detection part 53, and a white balance detection part 54 generate a focus detection signal S1, an exposure detection signal S2, and a white balance detection signal S3 respectively. A microcomputer generates a focus control signal S4, an exposure control signal S5, and a white balance control signal S6 from the focus detection signal S1, the exposure detection signal S2, and the white balance detection signal S3 respectively. COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2003344755A

公开(公告)日：2003-12-03

申请号：JP2002157027

申请日：2002-05-30

Applicant: Sony Corp ,  ソニー株式会社

Inventor： KUMAKI YASUHIRO ,  TAKEMOTO SATOSHI

IPC: G03B13/36 ,  G02B7/28 ,  G02B7/36 ,  G03B5/00 ,  H04N5/228 ,  H04N5/232

CPC classification number: H04N5/23212

Abstract: PROBLEM TO BE SOLVED: To improve the accuracy of an automatic focusing function correspond ing to a subject at the time of projecting auxiliary light. SOLUTION: In the case of judging that the auxiliary light projecting flag of an auxiliary light control part 15 is ON, a micro-computer 13 sets the reference value of higher frequency than cutoff frequency set in a high-pass filter 52. In the case of judging that a lower frequency component than the reference value is included in an image blur signal, the filter 52 cuts off the lower frequency component than the reference value. Thus, image blur correction for the lower frequency than the set reference value is inhibited in the image blur signal. The invention is applied to a camcorder. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提高在辅助光投射时对应于被摄体的自动聚焦功能的精度。 解决方案：在判定辅助光控制部15的辅助光投射标志为ON的情况下，微型计算机13设定高于在高通滤波器52中设定的截止频率的频率高的基准值。 在判定图像模糊信号中包含低于基准值的低频分量的情况下，滤波器52切断比基准值低的频率分量。 因此，在图像模糊信号中禁止比设定的基准值低的频率的图像模糊校正。 本发明应用于摄像机。 版权所有（C）2004，JPO

公开(公告)号：JPH1051814A

公开(公告)日：1998-02-20

申请号：JP20492096

申请日：1996-08-02

Applicant: SONY CORP

Inventor： FUJII MASARU ,  TAKEMOTO SATOSHI ,  TAKEUCHI TOKIO

IPC: H04N17/04

Abstract: PROBLEM TO BE SOLVED: To make the picture quality measuring instrument small-sized and inexpensive by arranging an illumination light source which lights a color display device nearby a color video camera so that the screen of the color display device is lit from right opposite it. SOLUTION: When the color display device 1 comes to right before the color video camera 2, a switch 11 is turned on under the control of a CPU 6 and the illumination light source 4 turns on. The camera 2 clearly picks up an image of the bezel edge of the cabinet of the device 1 lit by the light source 4 and stores it in a frame memory 5B. The CPU 6 reads the image of the bezel edge out of the memory 5B and calculates and stores its position in the memory of the CPU 6. After the light source 4 is turned off, the device is powered on and a pattern signal for image distortion measurement is supplied from a signal generating device 12 to the device 1 to project a pattern for measurement on the screen of a cathode-ray tube. Then the CPU 6 measures image distortion on the basis of the position of the bezel edge of the device 1.

公开(公告)号：JPH09312860A

公开(公告)日：1997-12-02

申请号：JP12858596

申请日：1996-05-23

Applicant: SONY CORP

Inventor： FUJII MASARU ,  TAKEMOTO SATOSHI ,  TAKEUCHI TOKIO

IPC: H04N17/04

Abstract: PROBLEM TO BE SOLVED: To discriminate fluctuation in measured values in an excellent way by clearly displaying the measurement results. SOLUTION: A fluctuation is caused in horizontal and vertical directions at display positions of dots measured with respect to a reference position indicated by, e.g. a mark '+'. That is, a display position 22 of a dot measured with respect to an upper left reference position 21, for example, is moved to a lower right. Moreover, a display position 24 of a dot measured with respect to a middle left reference position 23 is moved to upper right. Then a graphic formed by tying the display positions 22, 24 of each measured dot with optional color straight lines 25, 26 is displayed. Thus, the fluctuation in the display positions 22, 24 of each measured dot is clearly displayed. That is, the fluctuation in position is displayed by distortion of a straight line by tying the display positions by a straight line and the fluctuation in the display position is clearly indicated by the distortion and color of the straight line. Moreover, the indication of the reference position marked with '+' may not be required in the displayed graphic.