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1. 发明授权

US4871906A Focus detecting device using correlation 失效
标题翻译：聚焦检测装置使用相关性
公开(公告)号：US4871906A
公开(公告)日：1989-10-03
申请号：US107451
申请日：1987-10-08
申请人： Kouichi Ueda , Akihiro Fujiwara , Hirofumi Suda , Masamichi Toyama , Kunihiko Yamada
发明人： Kouichi Ueda , Akihiro Fujiwara , Hirofumi Suda , Masamichi Toyama , Kunihiko Yamada
IPC分类号： G02B7/28 , G02B7/36 , G03B13/36 , H04N5/232
CPC分类号： G02B7/36
摘要： A focus detecting device for determining a focused state of a photo taking optical system through a video signal obtained from an image sensor comprises a detecting circuit arranged to detect focused degrees obtained by scanning at a plurality of scanning line parts of an image sensing plane; a correlation determining circuit arranged to determine a correlation between positions on scanning lines at which the focused degrees are detected during the processes of the scanning lines; and a computing circuit arranged to determine a focused state by computing the focused degrees detected from the scanning line parts which are determined to be correlated to each other by the correlation determining circuit.
摘要翻译：用于通过从图像传感器获得的视频信号来确定摄影光学系统的聚焦状态的焦点检测装置包括：检测电路，被配置为检测通过在图像感测平面的多个扫描线部分进行扫描获得的聚焦度; 相关确定电路，被布置为确定在扫描行的处理期间检测到聚焦度的扫描线上的位置之间的相关性; 以及计算电路，被配置为通过计算由相关确定电路确定为彼此相关的扫描线部分检测到的聚焦度来确定聚焦状态。

2. 发明授权

US5543839A Focus adjusting device wherein effective focal length is derived by detecting low frequency changes in image signals 失效
标题翻译：聚焦调节装置，其中通过检测图像信号中的低频变化导出有效焦距
公开(公告)号：US5543839A
公开(公告)日：1996-08-06
申请号：US225249
申请日：1994-04-08
申请人： Hirofumi Suda , Masamichi Toyama , Akihiro Fujiwara , Kunihiko Yamada , Katsuji Yoshimura
发明人： Hirofumi Suda , Masamichi Toyama , Akihiro Fujiwara , Kunihiko Yamada , Katsuji Yoshimura
IPC分类号： G02B7/28 , H04N5/232
CPC分类号： H04N5/23212
摘要： A focus adjusting device having an added capability of discriminating effective focal length information by using an image signal produced from an image pickup element is provided with an automatic focus adjusting circuit for moving a lens to the in-focus position on the basis of a high-frequency component in the image signal, and a circuit for discriminating effective focal length information of the lens from the degree of change of a low-frequency component in the image signal, wherein the gain of the automatic focus adjusting circuit is controlled in accordance with the discriminated focal length information.
摘要翻译：具有通过使用从图像拾取元件产生的图像信号来鉴别有效焦距信息的附加能力的焦点调节装置设置有自动聚焦调整电路，用于基于高分辨率图像信号将透镜移动到对焦位置，图像信号中的频率分量，以及用于根据图像信号中的低频分量的变化程度来鉴别透镜的有效焦距信息的电路，其中根据该图像信号控制自动聚焦调整电路的增益区分焦距信息。

3. 发明授权

US5442397A Image sensing apparatus 失效
标题翻译：用于跟踪在图像感测平面上的对象图像的移动的装置。
公开(公告)号：US5442397A
公开(公告)日：1995-08-15
申请号：US245813
申请日：1994-05-18
申请人： Katsuji Yoshimura , Masamichi Toyama , Akihiro Fujiwara , Hirofumi Suda , Kunihiko Yamada , Kitahiro Kaneda , Hideo Homma
发明人： Katsuji Yoshimura , Masamichi Toyama , Akihiro Fujiwara , Hirofumi Suda , Kunihiko Yamada , Kitahiro Kaneda , Hideo Homma
IPC分类号： G01S3/786 , G02B7/36 , H04N5/232 , H04N5/235
CPC分类号： G01S3/7864 , G02B7/36 , H04N5/23212 , H04N5/2351
摘要： An image sensing apparatus operating with adaptive selection of a first tracing algorithm in which an object image is traced by moving a detecting area capable of being movably set on an image sensing plane in such a manner that the luminance level difference between the inside and the outside of that area becomes maximum and a second tracing algorithm in which the object image is traced by moving the position of the detecting area in such a manner that a point at which a contrast becomes maximum comes to coincide with a central portion of the detecting are depending on the state of the image sensing plane. The threshold values for changing over between the first tracing algorithm and the second tracing algorithm are made to have a hysteresis characteristic.
摘要翻译：一种图像感测装置，其以第一跟踪算法的自适应选择进行操作，其中通过移动能够以图像感测平面可移动设置的检测区域来跟踪对象图像，使得内部和外部之间的亮度水平差并且第二跟踪算法通过以使得对比度变得最大的点与检测的中心部分一致的方式移动检测区域的位置来跟踪对象图像是依赖于在图像传感平面的状态。使第一跟踪算法和第二跟踪算法之间切换的阈值具有滞后特性。

4. 发明授权

US5258847A Object tracing device 失效
标题翻译：对象跟踪设备
公开(公告)号：US5258847A
公开(公告)日：1993-11-02
申请号：US896727
申请日：1992-06-09
申请人： Kunihiko Yamada , Akihiro Fujiwara , Hirofumi Suda , Masamichi Toyama , Masahide Hirasawa , Kitahiro Kaneda
发明人： Kunihiko Yamada , Akihiro Fujiwara , Hirofumi Suda , Masamichi Toyama , Masahide Hirasawa , Kitahiro Kaneda
IPC分类号： G02B7/28 , H04N5/232 , H04N5/235
CPC分类号： G02B7/28 , H04N5/23212 , H04N5/2351 , Y10S358/906
摘要： An object tracing device comprises an area setting circuit which sets a detection area on an image sensing plane for detection of information about an object image formed on the image sensing plane; an object tracing circuit arranged to detect any change occurring in the position of the object image on the image sensing plane and to cause the set position of the detection area to change while following the object image; a recording instruction circuit for giving a recording start instruction to a recording circuit which is arranged to record image information including the object image obtained on the image sensing plane; and a control circuit which causes the object tracing circuit to begin to act in response to the instructing action of the recording instruction circuit.
摘要翻译：对象追踪装置包括区域设置电路，其设置用于检测关于形成在图像感测平面上的对象图像的信息的图像感测平面上的检测区域; 被配置为检测在所述图像感测平面上的所述对象图像的位置发生的任何变化并使得所述检测区域的设定位置在跟随所述对象图像时改变的对象跟踪电路; 记录指令电路，用于向记录电路提供记录开始指令，该记录电路被布置成记录包括在图像感测平面上获得的对象图像的图像信息; 以及控制电路，其使对象跟踪电路响应于记录指令电路的指示动作开始动作。

5. 发明授权

US4980773A In focus detecting apparatus having a plurality of bandpass filters 失效
标题翻译：在具有多个带通滤波器的焦点检测装置中
公开(公告)号：US4980773A
公开(公告)日：1990-12-25
申请号：US401512
申请日：1989-08-31
申请人： Hirofumi Suda , Masamichi Toyama , Akihiro Fujiwara , Kunihiko Yamada
发明人： Hirofumi Suda , Masamichi Toyama , Akihiro Fujiwara , Kunihiko Yamada
IPC分类号： G02B7/36 , G02B7/28 , H04N5/232
CPC分类号： H04N5/23212
摘要： An in-focus detecting apparatus has a plurality of band pass filters of different frequency pass bands. A video signal from an image pickup device is supplied to these band pass filters and a degree of in-focus of a photographing optical system is detected by an output of each of the band pass filters. This apparatus has a filter switching circuit to sequentially select the outputs of the band pass filters at a field period. Every time each of the band pass filters is selected, the peak value of the output of the selected band pass filter is compared with the preceding peak value which was previously selected to thereby obtain the differential value. The focus adjustment is performed on the basis of the output signal of the band pass filter having the maximum differential value.
摘要翻译：对焦检测装置具有多个不同频带通带的带通滤波器。来自图像拾取装置的视频信号被提供给这些带通滤波器，并且通过每个带通滤波器的输出来检测拍摄光学系统的对焦度。该装置具有滤波器切换电路，以在场周期顺序地选择带通滤波器的输出。每次选择每个带通滤波器时，将所选带通滤波器的输出的峰值与之前选择的先前峰值进行比较，从而获得差分值。基于具有最大差分值的带通滤波器的输出信号进行聚焦调整。

6. 发明授权

US6124891A Exposure control device 失效
标题翻译：曝光控制装置
公开(公告)号：US6124891A
公开(公告)日：2000-09-26
申请号：US278645
申请日：1994-07-21
申请人： Hideo Homma , Akihiro Fujiwara , Hirofumi Suda , Kunihiko Yamada , Masamichi Toyama , Kunio Imai
发明人： Hideo Homma , Akihiro Fujiwara , Hirofumi Suda , Kunihiko Yamada , Masamichi Toyama , Kunio Imai
IPC分类号： H04N5/235 , H04N5/238
CPC分类号： H04N5/2351
摘要： An exposure control device for performing exposure control on the basis of a video signal obtained from a light measuring area set within an image sensing plane is provided with a determining circuit which determines the position of a photographed object within the image sensing plane from the values of a specific component of the video signal obtained from the inside and outside of a detection area the position of which is variably set within the image sensing plane. The light measuring area is set in the object's position within the image sensing plane detected by the determining circuit. The exposure control device is provided further with a changing circuit which detects the size of the object on the image sensing plane and changes the size of the light measuring area accordingly, and a weighting circuit which performs for light measurement a weighting operation on video signals obtained from the inside and outside of the light measuring area.
摘要翻译：用于根据从摄像平面内设置的光测量区域获得的视频信号进行曝光控制的曝光控制装置设置有确定电路，该确定电路从摄像平面内的拍摄对象的位置确定从其位置可变地设置在图像感测平面内的检测区域的内部和外部获得的视频信号的特定分量。光测量区域被设置在由确定电路检测到的图像感测平面内的物体的位置。该曝光控制装置还具有检测图像检测面上的物体的尺寸并相应地改变光测量区域的尺寸的改变电路，以及用于对所获得的视频信号进行光测量加权操作的加权电路从光测量区域的内部和外部。

7. 发明授权

US5128768A Automatic focusing device having a settable focus detection area 失效
标题翻译：具有可设定焦点检测区域的自动聚焦装置
公开(公告)号：US5128768A
公开(公告)日：1992-07-07
申请号：US634329
申请日：1990-12-26
申请人： Hirofumi Suda , Masamichi Toyama , Akihiro Fujiwara , Kunihiko Yamada
发明人： Hirofumi Suda , Masamichi Toyama , Akihiro Fujiwara , Kunihiko Yamada
IPC分类号： G02B7/36 , H04N5/232
CPC分类号： G02B7/365 , G02B7/36 , H04N5/23212
摘要： An automatic focusing device for automatically controlling the focused state of an optical system on the basis of a video signal obtained within a focus detecting area which is set on an image sensing plane comprises: a tracing area setting circuit arranged to movably set, within said image sensing plane, an inner tracing area and an outer tracing area which surrounds the inner tracing area; a computing circuit arranged to compute information on a difference in a given frequency component of the video signal obtained from the inner and outer tracing areas in each of their different positions to which they are moved within the image sensing plane; determining means for determining the position or size of an object's image formed within the range sensing plane from the difference information computed by the computing circuit; and a circuit which is arranged to shift the focus detecting area to the position of the object's image determined by the determining circuit and to change the size of the focus detecting area according to the size of the object's image.
摘要翻译：一种用于根据在图像感测平面上设置的焦点检测区域内获得的视频信号来自动控制光学系统的聚焦状态的自动对焦装置包括：跟踪区域设置电路，被布置成可移动地设置在所述图像内感测平面，内部跟踪区域和围绕内部跟踪区域的外部跟踪区域; 计算电路，被配置为计算从在图像感测平面内移动的它们的不同位置的每个内部和外部跟踪区域获得的视频信号的给定频率分量中的差异的信息; 确定装置，用于根据由计算电路计算的差分信息确定在距离感测平面内形成的对象的图像的位置或大小; 以及电路，其被配置为将焦点检测区域移动到由确定电路确定的对象图像的位置，并且根据对象的图像的大小来改变焦点检测区域的大小。

8. 发明授权

US6088060A Automatic focusing device 失效
标题翻译：自动对焦装置
公开(公告)号：US6088060A
公开(公告)日：2000-07-11
申请号：US823607
申请日：1997-03-25
申请人： Hirofumi Suda , Masamichi Toyama , Akihiro Fujiwara , Kunihiko Yamada
发明人： Hirofumi Suda , Masamichi Toyama , Akihiro Fujiwara , Kunihiko Yamada
IPC分类号： G02B7/36 , H04N5/232 , G03B13/00
CPC分类号： G02B7/365 , G02B7/36 , H04N5/23212
摘要： An automatic focusing device for automatically controlling the focused state of an optical system on the basis of a video signal obtained within a focus detecting area which is set on an image sensing plane comprises: a tracing area setting circuit arranged to movably set, within said image sensing plane, an inner tracing area and an outer tracing area which surrounds the inner tracing area; a computing circuit arranged to compute information on a difference in a given frequency component of the video signal obtained from the inner and outer tracing areas in each of their different positions to which they are moved within the image sensing plane; determining means for determining the position or size of an object's image formed within the image sensing plane from the difference information computed by the computing circuit; and a circuit which is arranged to shift the focus detecting area to the position of the object's image determined by the determining circuit and to change the size of the focus detecting area according to the size of the object's image.
摘要翻译：一种用于根据在图像感测平面上设置的焦点检测区域内获得的视频信号来自动控制光学系统的聚焦状态的自动对焦装置包括：跟踪区域设置电路，被布置成可移动地设置在所述图像内感测平面，内部跟踪区域和围绕内部跟踪区域的外部跟踪区域; 计算电路，被配置为计算从在图像感测平面内移动的它们的不同位置的每个内部和外部跟踪区域获得的视频信号的给定频率分量中的差异的信息; 确定装置，用于根据由计算电路计算的差异信息确定在图像感测平面内形成的对象的图像的位置或大小; 以及电路，其被配置为将焦点检测区域移动到由确定电路确定的对象图像的位置，并且根据对象的图像的大小来改变焦点检测区域的大小。

9. 发明授权

US5629735A Image sensing device having a selectable detecting area 失效
标题翻译：图像感测装置具有可选择的检测区域
公开(公告)号：US5629735A
公开(公告)日：1997-05-13
申请号：US458227
申请日：1995-06-02
申请人： Kitahiro Kaneda , Akihiro Fujiwara , Kunihiko Yamada , Hirofumi Suda , Masamichi Toyama , Hideyuki Arai
发明人： Kitahiro Kaneda , Akihiro Fujiwara , Kunihiko Yamada , Hirofumi Suda , Masamichi Toyama , Hideyuki Arai
IPC分类号： H04N5/232
CPC分类号： H04N5/23212
摘要： An automatic focusing device which is capable of movably setting within an image sensing plane a focus detecting area for detecting the focused degree of an object image formed on the image sensing plane by a photo-taking optical system comprises a position detecting circuit for detecting the position of an object within the focus detecting area, a computing circuit for computing on the basis of information from the position detecting circuit a setting position for setting the focus detecting area, and a control circuit which is arranged to move the focus detecting area according to the output of the computing circuit and to vary and control at least one of the size, the moving range and the moving response speed of the focus detecting area according to information on the depth of field of the photo-taking optical system.
摘要翻译：一种自动聚焦装置，其能够在图像感测平面内可移动地设置用于通过摄影光学系统检测在图像感测平面上形成的被摄体图像的聚焦度的焦点检测区域，包括位置检测电路，用于检测位置焦点检测区域内的物体的计算电路，用于基于来自位置检测电路的信息计算用于设置焦点检测区域的设定位置的计算电路，以及控制电路，其被配置为根据所述焦点检测区域移动焦点检测区域输出，并且根据关于摄影光学系统的景深的信息来改变和控制焦点检测区域的尺寸，移动范围和移动响应速度中的至少一个。

10. 发明授权

US5341169A Video camera apparatus with predictably settable image screen detecting area 失效
标题翻译：具有可预见的可设置的图像屏幕检测区域的摄像机装置
公开(公告)号：US5341169A
公开(公告)日：1994-08-23
申请号：US17496
申请日：1993-02-12
申请人： Kitahiro Kaneda , Kunihiko Yamada , Akihiro Fujiwara , Hirofumi Suda , Masamichi Toyama
发明人： Kitahiro Kaneda , Kunihiko Yamada , Akihiro Fujiwara , Hirofumi Suda , Masamichi Toyama
IPC分类号： G01S3/786 , G02B7/36 , H04N5/232 , H04N5/235 , H04N5/225
CPC分类号： G02B7/36 , G01S3/7864 , H04N5/23212 , H04N5/23248 , H04N5/2351
摘要： An automatic focusing device which is capable of movably setting a focus detecting area on an image sensing plane comprises a position detecting circuit which detects the position of a picture-taking object within the focus detecting area, a storage circuit which stores a plurality of object position data detected at different points of time by the position detecting circuit, a computing circuit which computes the moving position of the focus detecting area by smoothing the object position data stored by the storage circuit and object position data currently detected, and an area setting circuit which shifts the focus detecting area on the basis of the shifting position computed by the computing circuit.
摘要翻译：能够可动地设定摄像面上的焦点检测区域的自动聚焦装置包括检测焦点检测区域内的拍摄对象的位置的位置检测电路，存储多个物体位置的存储电路通过位置检测电路在不同时间点检测的数据，计算电路，其通过平滑存储电路存储的对象位置数据和当前检测到的对象位置数据来计算焦点检测区域的移动位置;以及区域设置电路，基于由计算电路计算的换档位置移动焦点检测区域。

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