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    Calibration of Defective Image Sensor Elements
    1.
    发明申请
    Calibration of Defective Image Sensor Elements 有权

    公开(公告)号：US20170180659A1

    公开(公告)日：2017-06-22

    申请号：US14972075

    申请日：2015-12-16

    Applicant: Google Inc.

    Inventor： Marc Stewart Levoy ,  Roman Lewkow

    IPC: H04N5/367 ,  H04N17/00 ,  G06T3/40 ,  H04N5/232

    CPC classification number: H04N5/367 ,  G06T3/4038 ,  G06T2200/32 ,  G06T2207/10024 ,  G06T2207/10148 ,  G06T2207/20221 ,  H04N5/23212 ,  H04N5/3675 ,  H04N17/002

    Abstract: The present disclosure relates to methods and systems that may reduce pixel noise due to defective sensor elements in optical imaging systems. Namely, a camera may capture a burst of images with an image sensor while adjusting a focus distance setting of an optical element. For example, the image burst may be captured during an autofocus process. The plurality of images may be averaged or otherwise merged to provide a single, aggregate image frame. Such an aggregate image frame may appear blurry. In such a scenario, “hot” pixels, “dead” pixels, or otherwise defective pixels may be more easily recognized and/or corrected. As an example, a defective pixel may be removed from a target image or otherwise corrected by replacing a value of the defective pixel with an average value of neighboring pixels.

    Graphic interface for real-time vision enhancement
    2.
    发明授权
    Graphic interface for real-time vision enhancement 有权

    公开(公告)号：US09835862B1

    公开(公告)日：2017-12-05

    申请号：US14278608

    申请日：2014-05-15

    Applicant: Google Inc.

    Inventor： Changyin Zhou ,  Roman Lewkow ,  Marc Stewart Levoy ,  Jiawen Chen

    IPC: G06F3/045 ,  G02B27/01 ,  G06F3/041 ,  G06F3/00

    CPC classification number: G02B27/017 ,  G02B2027/0178 ,  G06F3/017 ,  G06F3/0346 ,  G06F3/03547 ,  G06F3/0488

    Abstract: Imaging systems can often gather higher quality information about a field of view than the unaided human eye. For example, telescopes may magnify very distant objects, microscopes may magnify very small objects, and high frame-rate cameras may capture fast motion. The present disclosure includes devices and methods that provide real-time vision enhancement without the delay of replaying from storage media. The disclosed devices and methods may include a live view user interface with two or more interactive features or effects that may be controllable in real-time. Specifically, the disclosed devices and methods may include a live view display and image and other information enhancements, which utilize in-line computation and constant control.

    Determining an image capture payload burst structure based on a metering image capture sweep
    3.
    发明授权
    Determining an image capture payload burst structure based on a metering image capture sweep 有权
    基于测光图像捕获扫描确定图像捕获有效载荷突发结构

    公开(公告)号：US08964060B2

    公开(公告)日：2015-02-24

    申请号：US14455444

    申请日：2014-08-08

    Applicant: Google Inc.

    Inventor： Marc Stewart Levoy ,  Ryan Geiss ,  Samuel William Hasinoff

    IPC: H04N9/73 ,  H04N5/235 ,  G06T5/50 ,  G06K9/62

    CPC classification number: H04N5/2355 ,  G06K9/6212 ,  G06T5/009 ,  G06T5/50 ,  G06T2207/10144 ,  G06T2207/20208 ,  H04N5/2353

    Abstract: A first plurality of images of a scene may be captured. Each image of the first plurality of images may be captured with a different total exposure time (TET). Based at least on the first plurality of images, a TET sequence may be determined for capturing images of the scene. A second plurality of images of the scene may be captured. Images in the second plurality of images may be captured using the TET sequence. Based at least on the second plurality of images, an output image of the scene may be constructed.

    Abstract translation: 可以捕获场景的第一多个图像。 可以用不同的总曝光时间（TET）捕获第一多个图像的每个图像。 至少基于第一多个图像，可以确定用于捕获场景的图像的TET序列。 可以捕获场景的第二多个图像。 可以使用TET序列捕获第二多个图像中的图像。 至少基于第二多个图像，可以构造场景的输出图像。

    Determining an image capture payload burst structure based on a metering image capture sweep
    5.
    发明授权
    Determining an image capture payload burst structure based on a metering image capture sweep 有权
    基于测光图像捕获扫描确定图像捕获有效载荷突发结构

    公开(公告)号：US08866927B2

    公开(公告)日：2014-10-21

    申请号：US13713720

    申请日：2012-12-13

    Applicant: Google Inc.

    Inventor： Marc Stewart Levoy ,  Ryan Geiss ,  Samuel William Hasinoff

    IPC: H04N5/228 ,  H04N5/235

    CPC classification number: H04N5/2355 ,  G06K9/6212 ,  G06T5/009 ,  G06T5/50 ,  G06T2207/10144 ,  G06T2207/20208 ,  H04N5/2353

    Abstract: A first plurality of images of a scene may be captured. Each image of the first plurality of images may be captured with a different total exposure time (TET). Based at least on the first plurality of images, a TET sequence may be determined for capturing images of the scene. A second plurality of images of the scene may be captured. Images in the second plurality of images may be captured using the TET sequence. Based at least on the second plurality of images, an output image of the scene may be constructed.

    Abstract translation: 可以捕获场景的第一多个图像。 可以用不同的总曝光时间（TET）捕获第一多个图像的每个图像。 至少基于第一多个图像，可以确定用于捕获场景的图像的TET序列。 可以捕获场景的第二多个图像。 可以使用TET序列捕获第二多个图像中的图像。 至少基于第二多个图像，可以构造场景的输出图像。

    Camera Obstruction Detection
    6.
    发明申请
    Camera Obstruction Detection 有权
    相机阻塞检测

    公开(公告)号：US20140293079A1

    公开(公告)日：2014-10-02

    申请号：US13855054

    申请日：2013-04-02

    Applicant: Google Inc

    Inventor： Peyman Milanfar ,  Marc Stewart Levoy ,  Samuel William Hasinoff ,  Changyin Zhou

    IPC: H04N5/232

    CPC classification number: H04N5/2171 ,  H04N5/23222

    Abstract: The present disclosure provides example methods operable by computing device. An example method can include receiving an image from a camera. The method can also include comparing one or more parameters of the image with one or more control parameters, where the one or more control parameters comprise information indicative of an image from a substantially unobstructed camera. Based on the comparison, the method can also include determining a score between the one or more parameters of the image and the one or more control parameters. The method can also include accumulating, by a computing device, a count of a number of times the determined score image exceeds a first threshold. Based on the count exceeding a second threshold, the method can also include determining that the camera is at least partially obstructed.

    Abstract translation: 本公开提供了可由计算设备操作的示例方法。 示例性方法可以包括从相机接收图像。 该方法还可以包括将图像的一个或多个参数与一个或多个控制参数进行比较，其中一个或多个控制参数包括指示来自基本上无障碍的相机的图像的信息。 基于比较，该方法还可以包括确定图像的一个或多个参数与一个或多个控制参数之间的得分。 该方法还可以包括由计算设备累积所确定的分数图像超过第一阈值的次数的计数。 基于超过第二阈值的计数，该方法还可以包括确定相机至少部分地被阻挡。

    Camera obstruction detection
    7.
    发明授权
    Camera obstruction detection 有权
    相机阻塞检测

    公开(公告)号：US09253375B2

    公开(公告)日：2016-02-02

    申请号：US13855054

    申请日：2013-04-02

    Applicant: Google Inc.

    Inventor： Peyman Milanfar ,  Marc Stewart Levoy ,  Samuel William Hasinoff ,  Changyin Zhou

    IPC: H04N5/217 ,  H04N5/232

    CPC classification number: H04N5/2171 ,  H04N5/23222

    Abstract: The present disclosure provides example methods operable by computing device. An example method can include receiving an image from a camera. The method can also include comparing one or more parameters of the image with one or more control parameters, where the one or more control parameters comprise information indicative of an image from a substantially unobstructed camera. Based on the comparison, the method can also include determining a score between the one or more parameters of the image and the one or more control parameters. The method can also include accumulating, by a computing device, a count of a number of times the determined score image exceeds a first threshold. Based on the count exceeding a second threshold, the method can also include determining that the camera is at least partially obstructed.

    Abstract translation: 本公开提供了可由计算设备操作的示例方法。 示例性方法可以包括从相机接收图像。 该方法还可以包括将图像的一个或多个参数与一个或多个控制参数进行比较，其中一个或多个控制参数包括指示来自基本上无障碍的相机的图像的信息。 基于比较，该方法还可以包括确定图像的一个或多个参数与一个或多个控制参数之间的得分。 该方法还可以包括由计算设备累积所确定的分数图像超过第一阈值的次数的计数。 基于超过第二阈值的计数，该方法还可以包括确定相机至少部分地被阻挡。

    Hand-triggered head-mounted photography
    10.
    发明授权
    Hand-triggered head-mounted photography 有权
    手触式头戴摄影

    公开(公告)号：US09076033B1

    公开(公告)日：2015-07-07

    申请号：US13630537

    申请日：2012-09-28

    Applicant: Google Inc.

    Inventor： Jonathan Tilton Barron ,  Marc Stewart Levoy ,  Samuel William Hasinoff

    IPC: H04N5/228 ,  G06K9/00 ,  G06F3/00 ,  G06F3/01 ,  G06F3/033

    CPC classification number: G06K9/00355 ,  G06F1/163 ,  G06F3/005 ,  G06F3/011 ,  G06F3/017 ,  G06F3/0304 ,  G06F3/04842 ,  G06K9/00671 ,  G06K9/2081 ,  H04N5/2257 ,  H04N5/23216 ,  H04N5/23293

    Abstract: Embodiments described herein may help a computing device, such as a head-mountable device (HMD), to capture and process images in response to a user placing their hands in, and then withdrawing their hands from, a frame formation. For example, an HMD may analyze image data from a point-of-view camera on the HMD, and detect when a wearer holds their hands in front of their face to frame a subject in the wearer's field of view. Further, the HMD may detect when the wearer withdraws their hands from such a frame formation and responsively capture an image. Further, the HMD may determine a selection area that is being framed, within the wearer's field of view, by the frame formation. The HMD may then process the captured image based on the frame formation, such as by cropping, white-balancing, and/or adjusting exposure.

    Abstract translation: 本文描述的实施例可以帮助计算设备，例如可头戴式设备（HMD），以响应于用户将他们的手放置在框架结构中，然后从框架结构中取出他们的手来捕获和处理图像。 例如，HMD可以分析来自HMD上的观察点相机的图像数据，并且检测佩戴者在佩戴者的视野内何时将手握在脸部的前方以构图被摄体。 此外，HMD可以检测穿戴者何时从这样的框架结构中撤回他们的手并且响应地捕获图像。 此外，HMD可以通过框架形成来确定正在框架的选择区域，在佩戴者的视野范围内。 然后，HMD可以基于帧形成处理捕获的图像，例如通过裁剪，白平衡和/或调整曝光。

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