公开(公告)号：US20060284996A1

公开(公告)日：2006-12-21

申请号：US11360214

申请日：2006-02-23

申请人： Kunihiko Kanai ,  Shuji Asami ,  Masao Kobayashi

发明人： Kunihiko Kanai ,  Shuji Asami ,  Masao Kobayashi

IPC分类号： H04N5/335

CPC分类号： H04N5/2354 ,  H04N5/232 ,  H04N5/23241 ,  H04N5/23245

摘要： Image capture devices are synchronized without using a communication unit for an image capture device to perform communication with other image capture device. When an image capture device 10 is set to the main device mode, it outputs a reset signal to a timing generator 40 simultaneously with the time when a flash circuit 50 performs pre-light emission and, when the image capture device 10 is set to the auxiliary device mode, the flash circuit 50 detects pre-light emission performed by other image capture device and outputs a reset signal to the timing generator 40 in accordance with the detection of the pre-light emission.

摘要翻译： 图像捕获设备被同步，而不使用用于图像捕获设备的通信单元来执行与其他图像捕获设备的通信。 当图像捕获装置10被设置为主装置模式时，其与闪光电路50执行预发光的时间同时输出到定时发生器40的复位信号，并且当图像拍摄装置10被设置为 辅助设备模式，闪光灯电路50检测由其他图像捕获设备执行的预发光，并根据预发光的检测将定时发生器40输出复位信号。

公开(公告)号：US20070013807A1

公开(公告)日：2007-01-18

申请号：US11383967

申请日：2006-05-18

申请人： Kunihiko Kanai ,  Shuji Asami ,  Masao Kobayashi

发明人： Kunihiko Kanai ,  Shuji Asami ,  Masao Kobayashi

IPC分类号： H04N5/235

CPC分类号： H04N5/247 ,  H04N5/23203

摘要： To provide a camera which enables photographing while intentionally, subtly shifting operation timing from that of another camera. A digital camera has a timing computing circuit. The timing computing circuit receives a reset request from another digital camera by way of a communications interface. The timing computing circuit awaits a reset request for a standby period shown by the reset request, and outputs a reset command to a reset circuit. The reset circuit outputs a reset signal to a timing generator (TG) in accordance with the reset command.

摘要翻译： 为了提供能够有意拍摄的相机，从另一相机的操作时刻巧妙地移动操作定时。 数码相机具有定时计算电路。 定时计算电路通过通信接口从另一数字照相机接收复位请求。 定时计算电路等待由复位请求所示的待机时间段的复位请求，并将复位命令输出到复位电路。 复位电路根据复位指令将复位信号输出到定时发生器（TG）。

公开(公告)号：US20060182431A1

公开(公告)日：2006-08-17

申请号：US11296946

申请日：2005-12-08

申请人： Masao Kobayashi ,  Shuji Asami ,  Kunihiko Kanai

发明人： Masao Kobayashi ,  Shuji Asami ,  Kunihiko Kanai

IPC分类号： G03B9/70 ,  G03B17/00

CPC分类号： G03B15/02 ,  G03B7/16 ,  G03B15/05 ,  G03B17/38 ,  G03B2215/05 ,  G03B2215/0557 ,  H04N5/2354 ,  H04N5/247

摘要： Coordinated image capturing is appropriately performed even if an error occurs in the synchronization between cameras that are connected via a network. Camera A for image capturing and camera B for providing strobe light are connected via a radio network, and camera A sets a point at which to start exposure for image capturing Tx and a point at which to start strobe emission Tf such that Tx is earlier than Tf, the time difference Id between Tx and Tf becomes larger than a synchronization error Ie between a synchronous clock of camera A and a synchronous clock of camera B, and the sum (Id+If+Ie) of the time difference Id, the strobe emission period If and the synchronization error Ie becomes smaller than exposure period Ix. Then, camera A outputs a strobe emission command with Tf designated and an exposure command with Tx designated, and controls the exposure control mechanism to start exposure at Tx in response to the exposure command. On the other hand, camera B controls the strobe mechanism to start strobe emission at Tf in response to the strobe emission command received via the radio network.

公开(公告)号：US07480450B2

公开(公告)日：2009-01-20

申请号：US11296946

申请日：2005-12-08

申请人： Masao Kobayashi ,  Shuji Asami ,  Kunihiko Kanai

发明人： Masao Kobayashi ,  Shuji Asami ,  Kunihiko Kanai

IPC分类号： G03B17/00 ,  H04N5/232

CPC分类号： G03B15/02 ,  G03B7/16 ,  G03B15/05 ,  G03B17/38 ,  G03B2215/05 ,  G03B2215/0557 ,  H04N5/2354 ,  H04N5/247

摘要： Coordinated image capturing is appropriately performed even if an error occurs in the synchronization between cameras that are connected via a network. Camera A for image capturing and camera B for providing strobe light are connected via a radio network, and camera A sets a point at which to start exposure for image capturing Tx and a point at which to start strobe emission Tf such that Tx is earlier than Tf, the time difference Id between Tx and Tf becomes larger than a synchronization error Ie between a synchronous clock of camera A and a synchronous clock of camera B, and the sum (Id+If+Ie) of the time difference Id, the strobe emission period If and the synchronization error Ie becomes smaller than exposure period Ix. Then, camera A outputs a strobe emission command with Tf designated and an exposure command with Tx designated, and controls the exposure control mechanism to start exposure at Tx in response to the exposure command. On the other hand, camera B controls the strobe mechanism to start strobe emission at Tf in response to the strobe emission command received via the radio network.

摘要翻译： 即使在通过网络连接的摄像机之间的同步中发生错误，也适当地执行协调的图像拍摄。 用于图像捕获的摄像机A和用于提供闪光灯的照相机B通过无线电网络连接，并且照相机A设置用于图像捕获Tx的开始曝光的点和启动频闪发射Tf的点，使得Tx早于 Tf，Tx和Tf之间的时间差Id变得大于相机A的同步时钟和相机B的同步时钟之间的同步误差Ie，以及时间差Id的和（Id + If + Ie），频闪 发光周期If和同步误差Ie变得小于曝光周期Ix。 然后，照相机A输出指定的Tf的闪光灯发光指令和指定了Tx的曝光指令，并且控制曝光控制机构响应于曝光命令在Tx开始曝光。 另一方面，相机B控制选通机构，以响应于经由无线电网络接收到的选通发射命令在Tf处启动频闪发射。

公开(公告)号：US07653299B2

公开(公告)日：2010-01-26

申请号：US11535169

申请日：2006-09-26

申请人： Hiroshi Miyazawa ,  Kunihiko Kanai ,  Hideo Nakamura

发明人： Hiroshi Miyazawa ,  Kunihiko Kanai ,  Hideo Nakamura

IPC分类号： G03B7/08 ,  G03B15/03 ,  H04N5/335

CPC分类号： G03B7/08 ,  H04N5/23245 ,  H04N5/2351 ,  H04N5/2352 ,  H04N5/2354 ,  H04N2101/00

摘要： An image of appropriate exposure is obtained in a short period of time. A controller and timing generator performs photometric measurement by use of an image signal acquired from a CCD, and determines appropriate light exposure. The CCD is divided into a plurality of regions: for example, an odd-number line region and an even-number line region. Timing at which accumulated electric charges are read from the respective regions is changed, thereby changing the light exposure of an image signal read from each of the regions. When the amount of light fired during the main flash is adjusted by means of causing a strobe to fire preliminary light, read timing is changed in such a way that an electric charge accumulation period of the odd-number line regions comes to an arbitrary point in time during the course of firing of preliminary light. The amount of main flash light can be determined by means of acquiring a plurality of image signals having different light exposures or a photometric measurement signal through single firing of preliminary flash light.

摘要翻译： 在短时间内获得适当曝光的图像。 控制器和定时发生器通过使用从CCD获取的图像信号执行光度测量，并且确定适当的曝光。 CCD被划分为多个区域：例如奇数行区域和偶数行区域。 改变从各个区域读取累积电荷的定时，从而改变从每个区域读取的图像信号的曝光。 当通过使闪光灯熄灭初步光来调整在主闪光期间发光的光量时，读取定时以这样的方式改变，使得奇数行区域的电荷累积时段到达任意点 在初步射击过程中的时间。 可以通过单次点火预备闪光灯获取具有不同光照的多个图像信号或光度测量信号来确定主闪光灯的量。

公开(公告)号：US20070096024A1

公开(公告)日：2007-05-03

申请号：US11464914

申请日：2006-08-16

申请人： Hiroaki Furuya ,  Kunihiko Kanai

发明人： Hiroaki Furuya ,  Kunihiko Kanai

IPC分类号： H01L25/00

CPC分类号： G03B7/22 ,  H04N5/2351 ,  H04N5/2352 ,  H04N2101/00

摘要： A digital camera automatically determines a scene for image capturing. A temperature sensor detects the temperature of a field, and a temperature-based information characteristic extraction circuit classifies the temperature into any of “high temperature,” “body temperature,” and “low temperature” categories. A scene determination circuit determines a scene by combination of temperature characteristics with movements, a hue, saturation, luminance, and the like, of an image detected by an image characteristic extraction circuit. For instance, when a lower portion of the screen has a low color temperature and a low saturation level, the scene is determined to be snow scene. According to the determined scene, a CPU controls exposure, shutter speed, the quantity of strobe light, and the like.

摘要翻译： 数码相机自动确定用于图像拍摄的场景。 温度传感器检测场的温度，并且基于温度的信息特征提取电路将温度分类为“高温”，“体温”和“低温”类别中的任一个。 场景确定电路通过图像特征提取电路检测到的图像的温度特性与运动，色调，饱和度，亮度等的组合来确定场景。 例如，当屏幕的下部具有低色温和低饱和度时，场景被确定为雪景。 根据确定的场景，CPU控制曝光，快门速度，闪光灯的数量等。

公开(公告)号：US20070024738A1

公开(公告)日：2007-02-01

申请号：US11360899

申请日：2006-02-23

申请人： Kunihiko Kanai ,  Hidenori Shiraki

发明人： Kunihiko Kanai ,  Hidenori Shiraki

IPC分类号： H04N5/225 ,  G02B13/16

CPC分类号： G02B7/34 ,  G02B7/36 ,  H04N5/23212

摘要： The present invention provides a digital camera which has a plurality of image capturing optical systems and quickly performs automatic focusing. A digital camera includes a first image capturing optical system formed from a lens 2 and a first image sensor, and a second image capturing optical system formed from a lens 3 and a second image sensor. An image processor detects a phase difference between an image of a single subject formed on the first image sensor and an image of the same formed on the second image sensor, in order to perform phase-difference AF. Since the lenses 2, 3 have different focal lengths, the image processor executes correlation operation after having performed conversion processing for causing a scaling factor of the image formed by the first image sensor to coincide with that of the image formed by the second image sensor, to thus detect a phase difference.

摘要翻译： 本发明提供一种具有多个摄像光学系统并快速进行自动聚焦的数码相机。 数码相机包括由透镜2和第一图像传感器形成的第一图像拍摄光学系统和由透镜3和第二图像传感器形成的第二图像拍摄光学系统。 图像处理器检测形成在第一图像传感器上的单个对象的图像与形成在第二图像传感器上的单个对象的图像之间的相位差，以执行相位差AF。 由于透镜2,3具有不同的焦距，所以图像处理器在执行用于使由第一图像传感器形成的图像的缩放因子与由第二图像传感器形成的图像的缩放因子相一致的转换处理之后执行相关操作， 从而检测相位差。

公开(公告)号：US20080239136A1

公开(公告)日：2008-10-02

申请号：US10586783

申请日：2005-04-26

申请人： Kunihiko Kanai ,  Minoru Yajima

发明人： Kunihiko Kanai ,  Minoru Yajima

IPC分类号： H04N5/225 ,  H04N5/232

CPC分类号： H04N5/23212 ,  G06T7/80 ,  H04N5/217

摘要： A device detects focal length using image data and an optical system is driven. Image data are acquired while changing focal length to lens. For each image data, high frequency contrast component evaluated values VH, and low frequency contrast component evaluated values VL, are acquired. If there is no moire, an image focal length D1 is determined using a peak value of the high frequency component evaluated values VH. If there is moire, in a range of high frequency component evaluated values adopting values less than or equal to a reference evaluated value VL2 calculated based on low frequency component evaluated values and photographing conditions, image capture focal lengths Da and Db are determined.

摘要翻译： 设备使用图像数据检测焦距并驱动光学系统。 在将焦距改变为透镜的同时获取图像数据。 对于每个图像数据，获取高频对比分量评估值VH和低频对比度分量评估值VL。 如果没有莫尔条纹，则使用高频分量评估值VH的峰值来确定图像焦距D 1。 如果存在莫尔条纹，则在采用小于或等于基于低频分量评估值和拍摄条件计算出的参考评估值VL 2的值的高频分量评估值的范围内，确定图像拍摄焦距Da和Db。

公开(公告)号：US20080050108A1

公开(公告)日：2008-02-28

申请号：US11689718

申请日：2007-03-22

申请人： Naoki Mizutani ,  Kunihiko Kanai ,  Yuji Shibata ,  Masao Harada

发明人： Naoki Mizutani ,  Kunihiko Kanai ,  Yuji Shibata ,  Masao Harada

IPC分类号： G03B13/00 ,  G03B3/00

CPC分类号： G03B3/00 ,  G02B7/36 ,  G02B27/0093 ,  G03B13/36 ,  G03B2213/02 ,  H04N5/23212 ,  H04N5/23219

摘要： The accuracy of focus adjustment operation is enhanced further. When focus adjustment operation is performed, a first measured distance acquired by utilization of TTL-AF and a second measured value acquired by utilization of a distance between the eyes have been computed in advance. The degree of reliability of the first measured distance is compared the degree of reliability of the second measured distance in accordance with a result of a determination as to whether or not a face is detected (S10), a result of a determination as to whether or not an ambient brightness value Br is equal to or less than a reference value (S12), a result of a determination as to whether or not a focal length “f” is equal to or less than a reference value (S16), and a result of a determination as to whether or not a second measured distance De is less than a first measured distance Dt (S18). Focus adjustment operation is performed in accordance with a measured distance determined to be more reliable.

摘要翻译： 焦点调整操作的精度进一步提高。 当执行焦点调整操作时，预先计算通过利用TTL-AF获得的第一测量距离和通过利用眼睛之间的距离获得的第二测量值。 将第一测量距离的可靠度与第二测量距离的可靠度进行比较，该距离是根据关于是否检测到脸部的确定结果（S10），确定是否 或者不是环境亮度值Br等于或小于参考值（S12），关于焦距“f”是否等于或小于参考值的确定的结果（S16） ，以及第二测量距离De是否小于第一测量距离Dt的确定结果（S18）。 根据被确定为更可靠的测量距离执行对焦调整操作。

公开(公告)号：US07817910B2

公开(公告)日：2010-10-19

申请号：US11685938

申请日：2007-03-14

申请人： Hiroshi Miyazawa ,  Kunihiko Kanai ,  Hideo Nakamura

发明人： Hiroshi Miyazawa ,  Kunihiko Kanai ,  Hideo Nakamura

IPC分类号： G03B3/00 ,  G03B15/03 ,  G03B7/08 ,  H04N3/14 ,  H04N5/222

CPC分类号： G03B7/08

摘要： An imaging apparatus includes an image sensor; a strobe unit; a preliminary. illumination controller which instructs the strobe unit to preliminarily illuminate for a predetermined period before main illumination; a reading controller which divides the image sensor into a plurality of regions, controls an exposure period for each region, corresponding to the preliminary illumination, and reads an image signal from each of the regions; and an imaging exposure setting unit which sets an appropriate amount of strobe light to be fired during imaging according to the image signals read from the regions; wherein the reading controller controls the exposure period for each region so that an overlapping period with the preliminary illumination period of the strobe unit is different from each other.

摘要翻译： 一种成像设备包括图像传感器; 频闪单元 初步的。 照明控制器，其指示所述闪光灯单元在主照明之前的预定时间段内预先照亮; 将图像传感器分割为多个区域的读取控制器控制与预备照明相对应的每个区域的曝光时段，并从每个区域读取图像信号; 以及成像曝光设定单元，其根据从所述区域读取的图像信号，在成像期间设定适当量的闪光灯; 其中读取控制器控制每个区域的曝光周期，使得与闪光灯单元的预备照明周期的重叠周期彼此不同。