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    Depthmap compression using a primitive
    12.
    发明授权
    Depthmap compression using a primitive 有权
    使用原始图像进行深度压缩

    公开(公告)号：US08687903B1

    公开(公告)日：2014-04-01

    申请号：US14022127

    申请日：2013-09-09

    Applicant: Google Inc.

    Inventor： Carlos Hernandez Esteban

    IPC: G06K9/46

    CPC classification number: H04N19/597

    Abstract: Systems and methods for compressing a depthmap are provided. In some aspects, a system includes an encoding module configured to group a plurality of pixels of a depthmap. Each grouped pixel of the depthmap includes a depth value and is associated with an optic ray aligned with a camera capturing the depthmap. Each of the plurality of depth values is within a predetermined offset from one another. The encoding module is further configured to generate a primitive based on the grouped plurality of pixels. The primitive includes an identification value. Each of the plurality of optic rays intersects a corresponding portion of the primitive. The encoding module is further configured to transform the depthmap based on the primitive. Each grouped pixel of the transformed depthmap includes the identification value. The system also includes a compression module configured to compress the transformed depthmap.

    Abstract translation: 提供了用于压缩深度图的系统和方法。 在一些方面，系统包括配置成对深度图的多个像素进行分组的编码模块。 深度图的每个分组像素包括深度值，并且与捕获深度图的相机对准的光学射线相关联。 多个深度值中的每一个在彼此之间的预定偏移量内。 编码模块还被配置为基于分组的多个像素生成基元。 原语包括识别值。 多个光线中的每一个与基元的相应部分相交。 编码模块还被配置为基于图元来变换深度图。 变换后的深度图的每个分组像素包括识别值。 该系统还包括被配置为压缩变换的深度图的压缩模块。

    Providing depth-of-field renderings
    16.
    发明授权
    Providing depth-of-field renderings 有权

    公开(公告)号：US09734551B1

    公开(公告)日：2017-08-15

    申请号：US14093500

    申请日：2013-12-01

    Applicant: Google Inc.

    Inventor： Carlos Hernandez Esteban ,  Li Zhang

    IPC: H04N1/387 ,  G06T5/00 ,  G06T3/00

    CPC classification number: G06T5/00 ,  G06T5/002 ,  G06T2200/04 ,  G06T2207/10024 ,  G06T2207/10028 ,  H04N1/387

    Abstract: Implementations generally relate to providing depth-of-field renderings. In some implementations, a method includes linearizing an image. The method further includes partitioning a depth map of the image into a plurality of depth intervals. The method further includes blurring pixels associated with each depth interval, where the pixels of each depth interval are blurred separately from the pixels of the other depth intervals. The method further includes applying at least one camera response function to the image after the pixels of the plurality of depth intervals are blurred.

    CAPTURE AND RENDER OF PANORAMIC VIRTUAL REALITY CONTENT
    19.
    发明申请
    CAPTURE AND RENDER OF PANORAMIC VIRTUAL REALITY CONTENT 审中-公开
    全景虚拟现实内容的捕捉和渲染

    公开(公告)号：US20160353089A1

    公开(公告)日：2016-12-01

    申请号：US14723151

    申请日：2015-05-27

    Applicant: GOOGLE INC.

    Inventor： David Gallup ,  Robert Anderson ,  Carlos Hernandez Esteban ,  Steven Maxwell Seitz ,  Riley Adams

    IPC: H04N13/04 ,  G02B27/01 ,  G06T19/00

    CPC classification number: H04N13/344 ,  G02B27/017 ,  G02B27/0172 ,  G02B2027/011 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0187 ,  G06T15/205 ,  H04N13/111 ,  H04N13/161 ,  H04N13/194 ,  H04N13/211 ,  H04N13/239 ,  H04N13/243 ,  H04N13/296 ,  H04N13/366

    Abstract: Systems and methods are described for defining a set of images based on captured images, receiving a viewing direction associated with a user of a virtual reality (VR) head mounted display, receiving an indication of a change in the viewing direction. The methods further include configuring, a re-projection of a portion of the set of images, the re-projection based at least in part on the changed viewing direction and a field of view associated with the captured images, and converting the portion from a spherical perspective projection into a planar perspective projection, rendering by the computing device and for display in the VR head mounted display, an updated view based on the re-projection, the updated view configured to correct distortion and provide stereo parallax in the portion, and providing, to the head mounted display, the updated view including a stereo panoramic scene corresponding to the changed viewing direction.

    Abstract translation: 描述了基于捕获的图像来定义一组图像的系统和方法，接收与虚拟现实（VR）头戴式显示器的用户相关联的观看方向，接收观看方向的改变的指示。 所述方法还包括至少部分地基于所改变的观察方向和与所捕获图像相关联的视场来配置，所述图像集合的一部分的重新投影，所述重新投影将所述部分从 球面透视投影到平面透视投影中，由计算设备渲染并用于显示在VR头戴式显示器中，基于重新投影的更新视图，配置为校正失真并在该部分中提供立体视差的更新视图，以及 向头戴式显示器提供包括与改变的观看方向对应的立体全景场景的更新视图。

    AUTOMATIC DETECTION OF PANORAMIC GESTURES
    20.
    发明申请
    AUTOMATIC DETECTION OF PANORAMIC GESTURES 有权
    自动检测全景镜

    公开(公告)号：US20160344930A1

    公开(公告)日：2016-11-24

    申请号：US14717492

    申请日：2015-05-20

    Applicant: Google Inc.

    Inventor： Alexandros Andre Chaaraoui ,  Carlos Hernandez Esteban ,  Li Zhang ,  Steven Maxwell Seitz

    IPC: H04N5/232 ,  G06F3/01

    CPC classification number: H04N5/23225 ,  G03B27/00 ,  G06F3/017 ,  H04N5/23238 ,  H04N5/23245

    Abstract: Aspects of the disclosure relate to capturing panoramic images using a computing device. For example, the computing device may record a set of video frames and tracking features each including one or more features that appear in two or more video frames of the set of video frames within the set of video frames may be determined. A set of frame-based features based on the displacement of the tracking features between two or more video frames of the set of video frames may be determined by the computing device. A set of historical feature values based on the set of frame-based features may also be determined by the computing device. The computing device may determine then whether a user is attempting to capture a panoramic image based on the set of historical feature values. In response, the computing device may capture a panoramic image.

    Abstract translation: 本公开的方面涉及使用计算设备捕获全景图像。 例如，计算设备可以记录一组视频帧，并且可以确定在视频帧集合内出现在视频帧集合中的两个或更多个视频帧中的包括一个或多个特征的跟踪特征。 基于视频帧集合中的两个或多个视频帧之间的跟踪特征的位移的基于帧的特征的集合可以由计算设备确定。 基于基于帧的特征集合的一组历史特征值也可以由计算设备确定。 计算设备可以确定用户是否正在尝试基于该组历史特征值捕获全景图像。 作为响应，计算设备可以捕获全景图像。

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