公开(公告)号：EP0725536A2

公开(公告)日：1996-08-07

申请号：EP96300690.3

申请日：1996-01-31

申请人： CANON KABUSHIKI KAISHA

发明人： Takahashi, Kenji ,  Udagawa, Yoshiro ,  Ikeda, Masato ,  Ikeda, Eiichiro

IPC分类号： H04N5/235

CPC分类号： H04N5/235 ,  H04N19/503

摘要： An image sensing apparatus which senses an object a plurality of times in different exposures to obtain a plurality of images and makes a single image with a widened dynamic range by processing the plurality of sensed images, generates a histogram of signal levels of an image sensed in a proper exposure by using a histogram generator, automatically decides whether a dynamic range expansion processing is to be processed or not on the basis of the generated histogram by using a dynamic range expansion deciding unit, determines a parameter for sensing another image of the object in an exposure which is different from the proper exposure in accordance with a decision by the dynamic range expansion deciding unit by using a parameter determination unit, and obtains a single image of the object by processing the image sensed in the proper exposure and the image sensed by using the parameter determined by said parameter determination unit an image processing unit. When an image sensing apparatus is not equipped with a photometer, a pre-sensing operation is performed, an image sensed in the pre-sensing operation is analyzed to find a proper exposure, and this image is also used in the dynamic range expansion processing. A part or whole image data of a plurality of images which are obtained as above and necessary for the dynamic range expansion processing are compressed by a compressing unit and the compressed image data is used in the dynamic range expansion processing.

摘要翻译： 一种图像感测装置，其通过处理多个感测图像，在不同曝光中多次感测对象以获得多个图像并使具有加宽的动态范围的单个图像生成图像感测的图像的信号电平的直方图 通过使用直方图发生器进行适当的曝光，通过使用动态范围扩展判定单元，基于生成的直方图自动地判定是否要处理动态范围扩展处理，确定用于感测对象的另一图像的参数 通过使用参数确定单元根据动态范围扩展判定单元的判定与正确曝光不同的曝光，并且通过处理在适当曝光中感测到的图像和通过适当曝光感测到的图像来获得对象的单个图像 使用由所述参数确定单元确定的参数来确定图像处理单元。 当图像感测装置未配备光度计时，执行预感测操作，分析在预感测操作中感测到的图像以找到适当的曝光，并且该图像也用于动态范围扩展处理。 通过压缩单元压缩如上所述和动态范围扩展处理所必需的多个图像的部分或全部图像数据，并且在动态范围扩展处理中使用压缩图像数据。

公开(公告)号：EP0769879B1

公开(公告)日：2003-05-02

申请号：EP96307517.1

申请日：1996-10-16

申请人： CANON KABUSHIKI KAISHA

发明人： Ikeda, Masato ,  Sasaki, Takashi ,  Takeda, Nobuhiro

IPC分类号： H04N9/04

CPC分类号： G06T3/4015 ,  G02B27/46 ,  H04N5/2254 ,  H04N9/045

公开(公告)号：EP0757496A2

公开(公告)日：1997-02-05

申请号：EP96305651.0

申请日：1996-07-31

申请人： CANON KABUSHIKI KAISHA

发明人： Udagawa, Yoshiro ,  Suga, Akira ,  Yanai, Toshikazu ,  Ikeda, Masato

IPC分类号： H04N9/04

CPC分类号： H04N9/045

摘要： A color filter array is applied to an interline CCD (image pickup element) in which a vertical CCD is driven in eight phases). The reading operation is performed as follows: photoelectrically converted carriers for two horizontal lines are transferred to the vertical CCD every third lines (e.g., C in the first line and M in the second line, C in the fifth line and G in the sixth line,... are transferred to the vertical CCD), and residual photoelectrically converted carriers (the Y carrier in the third line, the G carrier in the fourth line, the Y carrier in the seventh line, and the M carrier in the eighth line) are discharged by a substrate discharge operation. Thereafter, the photoelectrically converted carriers in the vertical CCD are sequentially transferred in the vertical CCD, and are output via a horizontal CCD and an output amplifier. Chrominance signal carriers on the 1/2PH axis generated by the color filter array of this invention can be removed by an optical LPF.

摘要翻译： 将滤色器阵列应用于其中垂直CCD以八个相位驱动的行间CCD（图像拾取元件）。 读取操作如下执行：用于两条水平线的光电转换载波每三行传输到垂直CCD（例如，第一行中的C和第二行中的M，第五行中的C和第六行中的G ，...被传送到垂直CCD）和剩余的光电转换载波（第三行中的Y载波，第四行中的G载波，第七行中的Y载波，以及第八行中的M载波 ）通过基板排出操作而放电。 此后，垂直CCD中的光电转换载体在垂直CCD中依次传送，并通过水平CCD和输出放大器输出。 由本发明的滤色器阵列产生的1 / 2PH轴上的色度信号载流子可通过光学LPF去除。

公开(公告)号：EP0725536B1

公开(公告)日：2003-04-16

申请号：EP96300690.3

申请日：1996-01-31

申请人： CANON KABUSHIKI KAISHA

发明人： Takahashi, Kenji ,  Udagawa, Yoshiro ,  Ikeda, Masato ,  Ikeda, Eiichiro

IPC分类号： H04N5/235

CPC分类号： H04N5/235 ,  H04N19/503

公开(公告)号：EP0757496B1

公开(公告)日：2002-06-05

申请号：EP96305651.0

申请日：1996-07-31

申请人： CANON KABUSHIKI KAISHA

发明人： Udagawa, Yoshiro ,  Suga, Akira ,  Yanai, Toshikazu ,  Ikeda, Masato

IPC分类号： H04N9/04

CPC分类号： H04N9/045

公开(公告)号：EP0846972B1

公开(公告)日：2003-04-16

申请号：EP97121597.5

申请日：1997-12-08

申请人： CANON KABUSHIKI KAISHA

发明人： Higashihara, Masaki ,  Ikeda, Masato

IPC分类号： G02B7/34 ,  G03B13/36

CPC分类号： H04N5/23212 ,  G02B7/34

公开(公告)号：EP0846972A3

公开(公告)日：2000-02-23

申请号：EP97121597.5

申请日：1997-12-08

申请人： CANON KABUSHIKI KAISHA

发明人： Higashihara, Masaki ,  Ikeda, Masato

IPC分类号： G02B7/34

CPC分类号： H04N5/23212 ,  G02B7/34

摘要： This invention discloses a focus detecting device for detecting images from different pupil areas on time-shared basis, and detecting the phase difference of the images from the different areas, thereby detecting the defocus amount. The focus detecting device of this type is incapable of exact defocus amount detection, because of the influence of the relative movement between the object and the photographing optical system. This invention is to obtain the exact defocus amount by detecting images from a same pupil area on time-shared basis, determining the phase difference between such images and effecting correction corresponding to the phase difference between the images from the same pupil area, in calculating the defocus amount.

公开(公告)号：EP0846972A2

公开(公告)日：1998-06-10

申请号：EP97121597.5

申请日：1997-12-08

申请人： CANON KABUSHIKI KAISHA

发明人： Higashihara, Masaki ,  Ikeda, Masato

IPC分类号： G02B7/34

CPC分类号： H04N5/23212 ,  G02B7/34

摘要： This invention discloses a focus detecting device for detecting images from different pupil areas on time-shared basis, and detecting the phase difference of the images from the different areas, thereby detecting the defocus amount. The focus detecting device of this type is incapable of exact defocus amount detection, because of the influence of the relative movement between the object and the photographing optical system.
This invention is to obtain the exact defocus amount by detecting images from a same pupil area on time-shared basis, determining the phase difference between such images and effecting correction corresponding to the phase difference between the images from the same pupil area, in calculating the defocus amount.

摘要翻译： 本发明公开了一种用于基于时间共享来检测来自不同瞳孔区域的图像的焦点检测装置，并且检测来自不同区域的图像的相位差，从而检测散焦量。 由于物体与拍摄光学系统之间的相对移动的影响，这种焦点检测装置不能进行精确的散焦量检测。 本发明是为了通过在时间共享的基础上检测来自同一瞳孔区域的图像来确定精确的散焦量，确定这些图像之间的相位差以及对应于来自同一瞳孔区域的图像之间的相位差进行的校正校正， 散焦量。

公开(公告)号：EP0757496A3

公开(公告)日：1998-04-08

申请号：EP96305651.0

申请日：1996-07-31

申请人： CANON KABUSHIKI KAISHA

发明人： Udagawa, Yoshiro ,  Suga, Akira ,  Yanai, Toshikazu ,  Ikeda, Masato

IPC分类号： H04N9/04

CPC分类号： H04N9/045

摘要： A color filter array is applied to an interline CCD (image pickup element) in which a vertical CCD is driven in eight phases). The reading operation is performed as follows: photoelectrically converted carriers for two horizontal lines are transferred to the vertical CCD every third lines (e.g., C in the first line and M in the second line, C in the fifth line and G in the sixth line,... are transferred to the vertical CCD), and residual photoelectrically converted carriers (the Y carrier in the third line, the G carrier in the fourth line, the Y carrier in the seventh line, and the M carrier in the eighth line) are discharged by a substrate discharge operation. Thereafter, the photoelectrically converted carriers in the vertical CCD are sequentially transferred in the vertical CCD, and are output via a horizontal CCD and an output amplifier. Chrominance signal carriers on the 1/2PH axis generated by the color filter array of this invention can be removed by an optical LPF.

公开(公告)号：EP0725536A3

公开(公告)日：1997-05-28

申请号：EP96300690.3

申请日：1996-01-31

申请人： CANON KABUSHIKI KAISHA

发明人： Takahashi, Kenji ,  Udagawa, Yoshiro ,  Ikeda, Masato ,  Ikeda, Eiichiro

IPC分类号： H04N5/235

CPC分类号： H04N5/235 ,  H04N19/503

摘要： An image sensing apparatus which senses an object a plurality of times in different exposures to obtain a plurality of images and makes a single image with a widened dynamic range by processing the plurality of sensed images, generates a histogram of signal levels of an image sensed in a proper exposure by using a histogram generator, automatically decides whether a dynamic range expansion processing is to be processed or not on the basis of the generated histogram by using a dynamic range expansion deciding unit, determines a parameter for sensing another image of the object in an exposure which is different from the proper exposure in accordance with a decision by the dynamic range expansion deciding unit by using a parameter determination unit, and obtains a single image of the object by processing the image sensed in the proper exposure and the image sensed by using the parameter determined by said parameter determination unit an image processing unit. When an image sensing apparatus is not equipped with a photometer, a pre-sensing operation is performed, an image sensed in the pre-sensing operation is analyzed to find a proper exposure, and this image is also used in the dynamic range expansion processing. A part or whole image data of a plurality of images which are obtained as above and necessary for the dynamic range expansion processing are compressed by a compressing unit and the compressed image data is used in the dynamic range expansion processing.