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    • 3. 发明授权
    • Selection of an auto focusing method in an imaging apparatus
    • 在成像装置中选择自动聚焦方法
    • US08203642B2
    • 2012-06-19
    • US11859262
    • 2007-09-21
    • Hisamo SogawaShinichi FujiiKazumi KageyamaToshio KatayamaMasato Yamaguchi
    • Hisamo SogawaShinichi FujiiKazumi KageyamaToshio KatayamaMasato Yamaguchi
    • H04N5/232
    • H04N5/23212G02B7/285G03B3/00G03B7/28G03B13/36G03B17/18G03B19/12H04N5/23245
    • An imaging apparatus includes an imaging device receiving light from an object through an imaging lens at a predetermined imaging plane and performing photoelectric conversion of an object image to generate a captured image; a phase-difference detector for receiving the light from the object and generating a phase-difference detection signal corresponding to a focus level of the object image; an evaluation-value calculator for calculating a predetermined evaluation value corresponding to a contrast of the object image on the basis of the captured image; and a determining unit for selecting an optimum AF method from among a plurality of AF methods in which the phase-difference detection signal obtained by the phase-difference detecting unit and the predetermined evaluation value based on the captured image are used selectively or in combination, the optimum AF method being selected in accordance with image-capturing conditions of the object.
    • 一种成像装置,包括:成像装置,其通过成像透镜在预定的成像面处接收来自物体的光,并进行对象图像的光电转换,生成拍摄图像; 相位差检测器,用于接收来自对象的光,并产生与对象图像的焦点水平相对应的相位差检测信号; 评估值计算器,用于基于所捕获的图像计算与所述对象图像的对比度相对应的预定评估值; 以及用于从多个AF方法中选择或组合地使用由相位差检测单元获得的相位差检测信号和基于拍摄图像的预定评估值的多个AF方法中的选择最佳AF方法的确定单元, 根据对象的图像拍摄条件选择最佳AF方法。
    • 4. 发明授权
    • Image pickup apparatus
    • 摄像设备
    • US08106997B2
    • 2012-01-31
    • US12421828
    • 2009-04-10
    • Junko NagahataHisamo SogawaTsuyoshi KishimotoToshio Katayama
    • Junko NagahataHisamo SogawaTsuyoshi KishimotoToshio Katayama
    • G03B13/36
    • H04N5/23212
    • In an image pickup apparatus, a light receiving unit produces a first signal at a first timing and a second signal at a second timing later than the first timing. First and second parameters for detecting a scene change are acquired based on the first and second signals, respectively. The presence or the absence of a scene change is determined based on both the parameters. The apparatus further includes a selecting unit configured to select a focusing target AF area from among a plurality of AF areas, and a focusing control unit configured to execute focusing control by using focusing information with respect to the AF area selected by the selecting unit. When the determining unit determines that the scene change is not present, the selecting unit selects the AF area having been selected at the first timing, as the focusing target AF area, at the second timing continuously.
    • 在图像拾取装置中,光接收单元在第一定时产生第一信号,在比第一定时晚的第二定时产生第二信号。 分别基于第一和第二信号获取用于检测场景变化的第一和第二参数。 基于这两个参数确定场景变化的存在或不存在。 该装置还包括:选择单元,被配置为从多个AF区域中选择聚焦目标AF区域;以及聚焦控制单元,被配置为通过使用关于由选择单元选择的AF区域的聚焦信息来执行聚焦控制。 当确定单元确定不存在场景改变时,选择单元连续地在第二定时处选择在第一定时被选择的AF区域作为聚焦目标AF区域。
    • 5. 发明申请
    • IMAGING APPARATUS
    • 成像设备
    • US20080118238A1
    • 2008-05-22
    • US11859262
    • 2007-09-21
    • Hisamo SogawaShinichi FujiiKazumi KageyamaToshio KatayamaMasato Yamaguchi
    • Hisamo SogawaShinichi FujiiKazumi KageyamaToshio KatayamaMasato Yamaguchi
    • G03B13/36H04N5/232
    • H04N5/23212G02B7/285G03B3/00G03B7/28G03B13/36G03B17/18G03B19/12H04N5/23245
    • An imaging apparatus includes an imaging device receiving light from an object through an imaging lens at a predetermined imaging plane and performing photoelectric conversion of an object image to generate a captured image; a phase-difference detector for receiving the light from the object and generating a phase-difference detection signal corresponding to a focus level of the object image; an evaluation-value calculator for calculating a predetermined evaluation value corresponding to a contrast of the object image on the basis of the captured image; and a determining unit for selecting an optimum AF method from among a plurality of AF methods in which the phase-difference detection signal obtained by the phase-difference detecting unit and the predetermined evaluation value based on the captured image are used selectively or in combination, the optimum AF method being selected in accordance with image-capturing conditions of the object.
    • 一种成像装置,包括:成像装置,其通过成像透镜在预定的成像面处接收来自物体的光,并进行对象图像的光电转换,生成拍摄图像; 相位差检测器,用于接收来自对象的光,并产生与对象图像的焦点水平相对应的相位差检测信号; 评估值计算器,用于基于所捕获的图像计算与所述对象图像的对比度相对应的预定评估值; 以及用于从多个AF方法中选择或组合地使用由相位差检测单元获得的相位差检测信号和基于拍摄图像的预定评估值的多个AF方法中的选择最佳AF方法的确定单元, 根据对象的图像拍摄条件选择最佳AF方法。
    • 6. 发明申请
    • Image capturing apparatus, control method thereof, and program
    • 图像捕获装置,其控制方法和程序
    • US20100208127A1
    • 2010-08-19
    • US12658175
    • 2010-02-04
    • Yohei TakadaHisamo Sogawa
    • Yohei TakadaHisamo Sogawa
    • H04N5/232
    • H04N5/23212G02B7/28H04N5/23219
    • An image capturing apparatus includes an image sensor obtaining a captured image of a subject, a face detection section detecting a face of the subject from the captured image, a focusing control section performing a tracking focusing operation for maintaining a state in which the face of the subject is focused on the basis of a signal obtained from a distance measuring area provided in an image capturing area, a first determination section determining whether the face of the subject is present in the distance measuring area when the face of the subject is detected by the face detection section, and a second determination section determining whether a body area in which a body corresponding to the face of the subject is expected to be present is present in the distance measuring area when the face of the subject is determined not to be present in the distance measuring area.
    • 一种图像捕获装置,包括获取被摄体的拍摄图像的图像传感器,从拍摄图像检测被检体的脸部的面部检测部,进行跟踪聚焦操作的聚焦控制部,其中, 主体集中在从设置在图像拍摄区域中的距离测量区域获得的信号的基础上,第一确定部分确定被检体的脸部是否存在于距离测量区域中, 面部检测部,以及第二确定部,其确定在被摄体的面部被确定为不存在的情况下,在距离测量区域中是否存在其中与被摄体的面部相对应的身体的身体区域是否存在 距离测量区域。
    • 9. 发明申请
    • IMAGE PICKUP APPARATUS
    • 图像拾取装置
    • US20100066856A1
    • 2010-03-18
    • US12594435
    • 2008-04-07
    • Tsuyoshi KishimotoHisamo Sogawa
    • Tsuyoshi KishimotoHisamo Sogawa
    • H04N5/228
    • G03B13/36G02B7/36H04N5/23212H04N5/23219H04N2101/00
    • An image pickup apparatus that can decrease the probability of an image in which a main subject is not in focus being captured is provided. An image pickup apparatus 1A includes two image pickup devices 5 and 7 that capture an image relating to a subject image made incident through an image capturing lens, a main subject detecting unit 122 that detects a main subject in the captured image, a phase difference AF control unit 121 that performs focus control on the basis of a phase difference detection signal acquired from a ranging area set in an imaging area, a determination unit 123 that determines whether the main subject is present in the ranging area, and a warning control unit 126 that, if the determination unit 123 determines that the main subject is not present in the ranging area, performs predetermined control for preventing a state in which the main subject is not in focus.
    • 提供了可以降低被摄体未被聚焦的图像的概率的图像拾取装置。 图像拾取装置1A包括捕获与通过图像拍摄镜头入射的被摄体图像有关的图像的两个图像拾取装置5和7,检测拍摄图像中的主要被摄体的主要被摄体检测单元122,相位差AF 控制单元121,其基于从设置在成像区域中的测距区域获取的相位差检测信号进行聚焦控制;确定单元123,确定主要被摄体是否存在于测距区域;以及警告控制单元126 如果确定单元123确定主要被摄体不存在于测距区域中,则执行用于防止主要被摄体不在焦点的状态的预定控制。
    • 10. 发明申请
    • Image pickup apparatus
    • 摄像设备
    • US20090092386A1
    • 2009-04-09
    • US12286771
    • 2008-10-02
    • Tsuyoshi KishimotoHisamo SogawaNorihiko Akamatsu
    • Tsuyoshi KishimotoHisamo SogawaNorihiko Akamatsu
    • G03B13/36
    • H04N5/23212H04N5/23296
    • An image pickup apparatus includes an imaging optical system; a display unit; a detecting unit performing focus detection in phase difference detection; a focusing unit performing focus control of a lens in the imaging optical system on the basis of the focus detection result; an imaging unit generating an image signal concerning an optical image of a subject; an electronic zoom unit zooming in or out the image of the subject displayed in the display unit on the basis of the image signal by performing signal processing; and a switching unit switching between an electronic zoom active state and an electronic zoom inactive state. The detecting unit includes a sensor unit including a first licensor and a second licensor; a setting unit that sets detection sections having the same section length in the first and second licensors; a focus detecting unit; and a section length controlling unit.
    • 一种图像拾取装置,包括成像光学系统; 显示单元; 在相位差检测中执行焦点检测的检测单元; 聚焦单元,基于焦点检测结果对成像光学系统中的透镜进行聚焦控制; 产生关于被摄体的光学图像的图像信号的成像单元; 电子变焦单元,通过执行信号处理,基于图像信号,放大或缩小显示在显示单元中的被摄体的图像; 以及在电子变焦活动状态和电子变焦无效状态之间切换的切换单元。 检测单元包括:传感器单元,包括第一许可方和第二许可器; 设置单元,设置在所述第一和第二许可方中具有相同部分长度的检测部分; 焦点检测单元; 和段长度控制单元。