公开(公告)号：US20160112126A1

公开(公告)日：2016-04-21

申请号：US14893662

申请日：2014-05-23

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： STEPHANUS JOSEPH JOHANNES NIJSSEN ,  FREDERIK JAN DE BRUIJN ,  TOMMASO GRITTI

IPC: H04B10/116 ,  H04N5/235 ,  H04N5/353 ,  H04N5/232

CPC classification number: H04B10/116 ,  G03B7/08 ,  G03B7/093 ,  H04N5/23229 ,  H04N5/2353 ,  H04N5/3532

Abstract: A device comprising an input for receiving image data representing light captured by a camera, and an image analysis module for detecting a coded light component modulated into the light with a modulation frequency. The camera has an exposure time, and the light is captured over a sequence of exposures each lasting for an instance of the exposure time. The detection performed by the image analysis module experiences a frequency blind spot in said detection due to an effect of said exposure time. To address this issue, the device further comprises an output for controlling one or more parameters of the camera which affect the exposure time, and a controller configured to control the one or more parameters to avoid that the modulation frequency corresponds to the frequency blind spot.

Abstract translation: 一种装置，包括：用于接收表示由照相机捕获的光的图像数据的输入;以及图像分析模块，用于检测调制成具有调制频率的光的编码光分量。 相机具有曝光时间，并且通过一系列曝光捕获光，每个曝光持续一段曝光时间。 由于所述曝光时间的影响，图像分析模块执行的检测在所述检测中经历频率盲点。 为了解决这个问题，设备还包括用于控制影响曝光时间的照相机的一个或多个参数的输出，以及控制器，被配置为控制一个或多个参数以避免调制频率对应于频率盲点。

公开(公告)号：US20150116537A1

公开(公告)日：2015-04-30

申请号：US14520728

申请日：2014-10-22

Applicant: CANON KABUSHIKI KAISHA

Inventor： Yuichi Ariga

IPC: H04N5/235

CPC classification number: H04N5/2357 ,  G03B7/093 ,  H04N5/235 ,  H04N5/2353 ,  H04N5/3532 ,  H04N5/357

Abstract: There is provided an image capturing apparatus comprising an image capturing unit. A control unit controls the image capturing unit to capture a first image having exposure unevenness caused by flicker in a light source. A detection unit detects a timing at which there is a low change in a light amount caused by the flicker, based on the exposure unevenness in the first image. An accepting unit accepts an image capturing instruction. The control unit controls the image capturing unit to capture a second image at the detected timing in response to the image capturing instruction.

Abstract translation: 提供了一种包括图像捕获单元的图像捕获装置。 控制单元控制图像拍摄单元捕获由光源中的闪烁引起的具有曝光不均的第一图像。 检测单元基于第一图像中的曝光不均匀来检测由闪烁引起的光量的低变化的定时。 接收单元接受图像捕获指令。 控制单元控制图像拍摄单元以响应于图像捕获指令在检测到的定时捕获第二图像。

公开(公告)号：US08699814B2

公开(公告)日：2014-04-15

申请号：US13384571

申请日：2010-03-19

Applicant: Dmitry Valerievich Shmunk ,  Eugene Alexandrovich Panich

Inventor： Dmitry Valerievich Shmunk ,  Eugene Alexandrovich Panich

IPC: G06K9/40

CPC classification number: G03B7/093 ,  H04N5/23229

Abstract: A method for producing high-quality photographic images in low-light conditions and in the absence of large-aperture optics. The method includes, upon photographing, first obtaining a plurality of frames of the image with exposures which either partially overlap in time or with an insignificant pause between them. The best result can be obtained in the case when the pause between the exposures represents less than 1/20 of the overall exposure time. The method further includes separating out the initial images from a group of exposures and filtering the images having the smallest exposure interval using the images having the largest exposure interval. The final image is obtained by combining initial images having different exposure intervals from the same group.

Abstract translation: 一种用于在低光条件下和在没有大光圈光学器件的情况下生产高品质照相图像的方法。 该方法包括在拍摄时首先获得具有在时间上部分重叠或在它们之间的微不足道的暂停的曝光的图像的多个帧。 在曝光之间的暂停表示小于整个曝光时间的1/20的情况下，可以获得最佳结果。 该方法还包括从一组曝光中分离出初始图像，并且使用具有最大曝光间隔的图像对具有最小曝光间隔的图像进行滤波。 通过组合具有不同曝光间隔的初始图像从同一组获得最终图像。

公开(公告)号：US07916209B2

公开(公告)日：2011-03-29

申请号：US12042746

申请日：2008-03-05

Applicant: Akira Asoma

Inventor： Akira Asoma

IPC: G03B7/00

CPC classification number: H04N5/2353 ,  G03B7/093 ,  H04N5/2355

Abstract: An image capturing apparatus includes: an image capturing processing unit capable of selectively performing a normal image capturing process in a normal image capturing mode and a combined image capturing process in a combined image capturing mode, the normal image capturing process being a process of obtaining a single exposure image signal in a unit period and generating captured image data by performing signal processing upon the obtained signal, and the combined image capturing process being a process of obtaining a long-exposure image signal and a short-exposure image signal and generating captured image data by performing signal processing including signal combination upon these obtained signals; a detection unit for performing light metering upon the captured image data; and a control unit for controlling switching between light metering methods used in the detection unit in accordance with an image capturing mode used.

Abstract translation: 一种摄像装置，包括：图像拍摄处理单元，其能够以合成图像拍摄模式选择性地执行正常图像捕获模式中的正常图像捕获处理和组合图像捕获处理，所述正常图像捕获处理是获得 单曝光图像信号，并且通过对获得的信号执行信号处理来产生拍摄图像数据，并且组合图像拍摄处理是获得长曝光图像信号和短曝光图像信号并产生拍摄图像的处理 数据，通过在这些获得的信号上执行包括信号组合的信号处理; 检测单元，用于对所捕获的图像数据进行计量; 以及控制单元，用于根据所使用的图像捕获模式来控制在所述检测单元中使用的测光方法之间的切换。

公开(公告)号：US07684690B2

公开(公告)日：2010-03-23

申请号：US11759301

申请日：2007-06-07

Applicant: Yueh-Ju Lee

Inventor： Yueh-Ju Lee

IPC: G03B7/00 ,  G03B7/083 ,  H04N5/235

CPC classification number: G03B7/093

Abstract: A method for automatic exposure compensation is disclosed. A shutter is activated and the environmental brightness is detected using a sensor. An exposure value is calculated according to the detection result to obtain a default exposure time. It is determined whether the exposure value is equal to a normal value. If not, a compensation value is calculated based on a shutter-closing curve and a compensation operation is thus executed. Thus, an exposure signal is generated by advancing a first predefined time or postponing a second predefined time, enabling the amount of exposure time to be equal to the addition or subtraction of the default exposure time and the first predefined time.

Abstract translation: 公开了一种自动曝光补偿方法。 激活快门，并使用传感器检测环境亮度。 根据检测结果计算曝光值以获得默认曝光时间。 确定曝光值是否等于正常值。 如果不是，则基于快门关闭曲线计算补偿值，由此执行补偿操作。 因此，通过前进第一预定时间或延迟第二预定义时间来产生曝光信号，使得曝光时间量等于默认曝光时间和第一预定时间的相加或减去。

公开(公告)号：US07565068B2

公开(公告)日：2009-07-21

申请号：US11491290

申请日：2006-07-24

Applicant: Hiroshi Endo

Inventor： Hiroshi Endo

IPC: G03B17/00 ,  H04N5/225 ,  G02B27/64

CPC classification number: G03B7/093 ,  G03B2207/005 ,  G03B2217/005 ,  H04N5/23248 ,  H04N5/2327

Abstract: An image-taking apparatus includes an imaging device and a shooting lens of variable foal length, and generates image signals by forming a subject image entering through the shooting lens on the imaging device. The apparatus includes an angular-velocity sensor that predicts a shake that will occur at shooting by detecting a shake before shooting. The apparatus also includes a main CPU that controls exposure by adopting a shutter speed within a maximum shutter speed. The maximum shutter speed can be changed according to a result of shake detection and a focal length of the shooting lens to be used at shooting.

Abstract translation: 摄像装置包括成像装置和可变驹长度的拍摄镜头，并且通过在成像装置上形成通过拍摄镜头进入的被摄体图像来生成图像信号。 该装置包括角速度传感器，其通过在拍摄之前检测到震动来预测在拍摄时将发生的抖动。 该装置还包括通过采用最大快门速度下的快门速度来控制曝光的主CPU。 可以根据抖动检测的结果和拍摄时要使用的拍摄镜头的焦距来更改最大快门速度。

公开(公告)号：US20090015707A1

公开(公告)日：2009-01-15

申请号：US12082528

申请日：2008-04-11

Applicant: Yutaka Hibino ,  Yoshihiko Nakayama ,  Masataka Furuya

Inventor： Yutaka Hibino ,  Yoshihiko Nakayama ,  Masataka Furuya

IPC: H04N5/232

CPC classification number: G03B7/093 ,  H04N5/23212 ,  H04N5/23296 ,  H04N5/2351

Abstract: A method of exposure control in an image pickup apparatus includes determining whether a zoom lens has been moved, determining whether an F value obtained from information about focal position of a focus lens linked to movement of the zoom lens has changed, estimating a variation in the focus luminance before and after a change in the F value from the F values before and after the change when the F value has been changed, changing the shutter speed determined according to a focus luminance before the change to a shutter speed determined according to the focus luminance after the change, based on the estimated variation in the focus luminance, and changing a frame rate determined according to the focus luminance before the change to a frame rate determined according to a focus luminance after the change according to the changed shutter speed.

Abstract translation: 一种图像拾取装置中的曝光控制方法包括：确定变焦镜头是否已被移动，确定从与变焦镜头的移动相关联的聚焦透镜的焦点位置的信息获得的F值是否已经改变， 在F值改变之前和之后F值改变之前和之后的焦点亮度在根据改变之前根据焦点亮度确定的快门速度改变为根据焦点确定的快门速度 改变后的亮度，基于估计的聚焦亮度的变化，以及根据改变的快门速度将根据改变之后的焦点亮度确定的帧速率改变为根据改变后的焦点亮度确定的帧速率。

公开(公告)号：US20080044170A1

公开(公告)日：2008-02-21

申请号：US11464828

申请日：2006-08-16

Applicant: Choon Hwee Yap ,  Gregory V. Hofer

Inventor： Choon Hwee Yap ,  Gregory V. Hofer

IPC: G03B7/093

CPC classification number: G03B7/093

Abstract: An image capturing system capable of providing an optimal exposure setting and method of operating the same are disclosed. The image capturing system includes a CMOS image sensor having photosensitive cells; a lens module having a mechanical shutter; a memory having a program for exposure analysis and a program for detecting motion stored therein; and a controller having a processor. The processor is configured to execute the program for exposure analysis and the program for detecting motion. The exposure analysis includes determining the exposure time for capturing an image of a scene based on the brightness of the scene and comparing the exposure time with the closing time of the mechanical shutter. The controller is operable to set the image capturing system to either a “Global-Reset mode” or an “Electronic-Rolling-Shutter” (ERS) mode based on the output of the exposure analysis and motion detection. In the Global Reset mode, the mechanical shutter is utilized during sensor readout to shield the photosensitive cells from extraneous light. In the ERS mode, an electronic rolling shutter is utilized to perform image exposure and readout without closing the mechanical shutter at the end of an exposure period.

Abstract translation: 公开了能够提供最佳曝光设置的图像捕获系统及其操作方法。 图像捕获系统包括具有感光单元的CMOS图像传感器; 具有机械快门的透镜模块; 具有用于曝光分析的程序的存储器和用于检测存储在其中的运动的程序; 以及具有处理器的控制器。 处理器被配置为执行用于曝光分析的程序和用于检测运动的程序。 曝光分析包括基于场景的亮度确定用于拍摄场景的图像的曝光时间，并将曝光时间与机械快门的关闭时间进行比较。 控制器可操作以基于曝光分析和运动检测的输出将图像拍摄系统设置为“全局复位模式”或“电子滚动快门”（ERS）模式。 在全局复位模式下，在传感器读数期间使用机械快门来屏蔽感光细胞的外界光线。 在ERS模式中，电子滚动快门用于在曝光期结束时不关闭机械快门来执行图像曝光和读出。

公开(公告)号：US20070274702A1

公开(公告)日：2007-11-29

申请号：US11798892

申请日：2007-05-17

Applicant: Tsutomu Wakabayashi

Inventor： Tsutomu Wakabayashi

IPC: G03B7/093

CPC classification number: G03B7/093

Abstract: An electronic camera includes: an imaging device that captures a subject image through a photographic lens; a luminance detection device that detects subject luminance; a first arithmetic operation circuit that executes exposure calculation by using at least exposure sensitivity set at the imaging device and the subject luminance detected by the luminance detection device among the exposure sensitivity set at the imaging device, an exposure time period set at the imaging device, an aperture value set at the photographic lens and the subject luminance detected by the luminance detection device and determines through arithmetic operation a first control exposure by adjusting at least one of the exposure time period and the aperture value so as to achieve optimal exposure if the optimal exposure is not achieved through the initial exposure calculation; a second arithmetic operation circuit that determines through arithmetic operation a second control exposure with regard to the aperture value and the exposure time period so as to achieve the optimal exposure in correspondence to the exposure sensitivity set at the imaging device and the subject luminance detected by the luminance detection device; a first control circuit that controls the first arithmetic operation circuit so as to execute the exposure calculation again by adjusting the exposure sensitivity if calculation results provided by the first arithmetic operation circuit do not achieve the optimal exposure; a second control circuit that sets the exposure sensitivity at the imaging device in correspondence to the subject luminance detected by the luminance detection device; and a third control circuit that individually controls the first arithmetic operation circuit, the second arithmetic operation circuit, the first control circuit and the second control circuit such that one of the first arithmetic operation circuit and the second arithmetic operation circuit is selected in response to a first instruction, that engagement of the second control circuit is disallowed and engagement of the first control circuit is allowed in response to a second instruction when the first arithmetic operation circuit is selected and that engagement of the first control circuit is disallowed and engagement of the second control circuit is allowed in response to a third instruction when the second arithmetic operation circuit is selected.

公开(公告)号：US20070206935A1

公开(公告)日：2007-09-06

申请号：US11704983

申请日：2007-02-12

Applicant: Toshiki Ono

Inventor： Toshiki Ono

IPC: G03B17/00

CPC classification number: G03B7/093 ,  G03B2205/0007 ,  G03B2217/005 ,  H04N5/23248 ,  H04N5/2327 ,  H04N5/2353 ,  H04N2101/00

Abstract: An image pickup apparatus which includes a camera shake correction mechanism and determines exposure conditions including at least a shutter speed in response to brightness of an image pickup object, including acquisition means, decision means, and setting means. The acquisition means is configured to acquire a focal distance of a lens for converging an optical image of the image pickup object. The decision means is configured to decide a camera shake limit shutter speed corresponding to the acquired focal distance. The setting means is configured to set, where the camera shake correction mechanism is valid, a shutter speed lower than the camera shake limit shutter speed by an amount corresponding to a predetermined difference in exposure value to one end of a setting range of the shutter speed of the exposure condition.

Abstract translation: 一种包括相机抖动校正机构的图像拾取装置，包括响应于图像拾取对象的亮度至少包括快门速度的曝光条件，包括获取装置，判定装置和设置装置。 获取装置被配置为获取用于会聚图像拾取对象的光学图像的透镜的焦距。 决定装置被配置为确定与获取的焦距对应的相机抖动限制快门速度。 设置装置被配置为将相机抖动校正机制有效的快门速度设定为相对于相机抖动限制快门速度的快门速度与曝光值的预定差相对应的快门速度与快门速度的设定范围的一端 的暴露条件。