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    Panoramic camera systems
    1.
    发明授权
    Panoramic camera systems 有权

    公开(公告)号：US10248890B2

    公开(公告)日：2019-04-02

    申请号：US15490897

    申请日：2017-04-18

    Applicant: Facebook, Inc.

    Inventor： Forrest Samuel Briggs ,  Michael John Toksvig ,  Brian Keith Cabral

    IPC: G06K9/72 ,  H04N17/00 ,  G06T15/06 ,  H04N5/247 ,  G06T5/20 ,  H04N5/232 ,  G06T19/20 ,  G06T5/00 ,  G08B13/196 ,  G06K9/62 ,  G06T7/55 ,  G06T7/70 ,  H04N7/18 ,  G06T7/77

    Abstract: A camera system captures images from a set of cameras to generate binocular panoramic views of an environment. The cameras are oriented in the camera system to maximize the minimum number of cameras viewing a set of randomized test points. To calibrate the system, matching features between images are identified and used to estimate three-dimensional points external to the camera system. Calibration parameters are modified to improve the three-dimensional point estimates. When images are captured, a pipeline generates a depth map for each camera using reprojected views from adjacent cameras and an image pyramid that includes individual pixel depth refinement and filtering between levels of the pyramid. The images may be used generate views of the environment from different perspectives (relative to the image capture location) by generating depth surfaces corresponding to the depth maps and blending the depth surfaces.

    OFFLINE CONVERSION MEASUREMENT FOR ADVERTISEMENTS PRESENTED TO USERS OF AN ONLINE SYSTEM
    3.
    发明申请
    OFFLINE CONVERSION MEASUREMENT FOR ADVERTISEMENTS PRESENTED TO USERS OF AN ONLINE SYSTEM 审中-公开
    在线系统用户广告的离线转换测量

    公开(公告)号：US20150142551A1

    公开(公告)日：2015-05-21

    申请号：US14085612

    申请日：2013-11-20

    Applicant: Facebook, Inc.

    Inventor： Matthew Nicholas Papakipos ,  Michael John Toksvig ,  Charles Joseph Hughes

    IPC: G06Q30/02

    CPC classification number: G06Q30/0277 ,  G06Q30/0261 ,  G06Q30/0272

    Abstract: An online system identifies a conversion of an advertisement when a client device associated with an online system user is within a threshold distance of a physical location associated with the advertisement. The client device sends obfuscated information identifying the user associated with the client device and the location of the client device to an independent third party when the client device is within a threshold distance of the physical location associated with the advertisement. Using information from the client device, the third party requests information from the online system identifying one or more groups including the user. Based on information identifying groups including various online system users, the third party generates information identifying conversions associated with different groups. The online system may determine effectiveness of various advertisements using the information from the third party identifying conversions associated with different groups.

    Abstract translation: 当与在线系统用户相关联的客户端设备处于与广告相关联的物理位置的阈值距离内时，在线系统识别广告的转换。 当客户端设备处于与广告相关联的物理位置的阈值距离内时，客户端设备将识别与客户端设备相关联的用户的模糊信息和客户端设备的位置发送到独立的第三方。 使用来自客户端设备的信息，第三方从在线系统请求识别包括用户的一个或多个组的信息。 基于识别包括各种在线系统用户的组的信息，第三方生成识别与不同组相关联的转换的信息。 在线系统可以使用来自第三方识别与不同组相关联的转换的信息来确定各种广告的有效性。

    Parallax viewer system calibration
    5.
    发明授权
    Parallax viewer system calibration 有权

    公开(公告)号：US10606347B1

    公开(公告)日：2020-03-31

    申请号：US15987748

    申请日：2018-05-23

    Applicant: Facebook, Inc.

    Inventor： Michael John Toksvig ,  Joyce Hsu

    IPC: G06F3/01 ,  H04N5/232 ,  G06T19/00

    Abstract: A parallax viewer system allows 3D content, such as 360 degree 3D panoramas or other 3D environments, to be viewed by a user through a traditional 2D screen. A parallax viewer system operating on a user device can use a user-facing camera and a 2D screen to simulate a 3D environment for a user viewing the 2D screen. By changing the rendered view of the 3D environment as the user's head moves with respect to the screen, the parallax viewer system can provide many of the immersion benefits of a VR or 3D display using a traditional 2D display. In some implementations, the parallax viewer system can be calibrated to work in new situations (for example, on a new user device) by determining the relationship between the user-facing camera and the screen used to display the virtual environment.

    Displaying advertisements with location information
    6.
    发明授权
    Displaying advertisements with location information 有权

    公开(公告)号：US10475077B2

    公开(公告)日：2019-11-12

    申请号：US14305997

    申请日：2014-06-16

    Applicant: Facebook, Inc.

    Inventor： Erick Tseng ,  Michael John Toksvig

    IPC: G06Q30/00 ,  G06Q30/02 ,  G06Q50/00

    Abstract: Advertisement content associated with an entity having a physical location is selected for display to a user by a client device. A proximity of the client device to the physical location is determined. In response to determining the proximity between the client device and the physical location, an advertisement is generated that includes the advertisement content and an indicator of the physical location. The generated advertisement is sent to the client device for display to the user.

    Offline conversion measurement for advertisements presented to users of an online system
    7.
    发明授权
    Offline conversion measurement for advertisements presented to users of an online system 有权

    公开(公告)号：US10467661B2

    公开(公告)日：2019-11-05

    申请号：US14085612

    申请日：2013-11-20

    Applicant: Facebook, Inc.

    Inventor： Matthew Nicholas Papakipos ,  Michael John Toksvig ,  Charles Joseph Hughes

    IPC: G06Q30/02

    Abstract: An online system identifies a conversion of an advertisement when a client device associated with an online system user is within a threshold distance of a physical location associated with the advertisement. The client device sends obfuscated information identifying the user associated with the client device and the location of the client device to an independent third party when the client device is within a threshold distance of the physical location associated with the advertisement. Using information from the client device, the third party requests information from the online system identifying one or more groups including the user. Based on information identifying groups including various online system users, the third party generates information identifying conversions associated with different groups. The online system may determine effectiveness of various advertisements using the information from the third party identifying conversions associated with different groups.

    Vertex shift for rendering 360 stereoscopic content
    8.
    发明授权
    Vertex shift for rendering 360 stereoscopic content 有权

    公开(公告)号：US10453247B1

    公开(公告)日：2019-10-22

    申请号：US15945959

    申请日：2018-04-05

    Applicant: Facebook, Inc.

    Inventor： Michael John Toksvig

    IPC: G06T15/20 ,  H04N13/383 ,  G06T19/00 ,  G06T15/00

    Abstract: A 360 video system can render 360 stereoscopic content based on a virtual environment using a standard GPU rendering pipeline. In some embodiments, in order to improve efficiency in generating 360 stereoscopic content, a vertex shift technique can be used to approximate multiple viewpoints in a single 360 stereoscopic eye view. When rendering the virtual environment, each triangle of the virtual environment can be shifted to represent the view from a viewpoint corresponding to that triangle. Using vertex shift techniques, a virtual environment can be rendered into a 360 stereoscopic eye view in one pass of a GPU rendering pipeline, according to some embodiments.

    Panoramic camera systems
    10.
    发明授权
    Panoramic camera systems 有权

    公开(公告)号：US10230947B2

    公开(公告)日：2019-03-12

    申请号：US15490887

    申请日：2017-04-18

    Applicant: Facebook, Inc.

    Inventor： Michael John Toksvig ,  Forrest Samuel Briggs ,  Brian Keith Cabral

    IPC: H04N5/247 ,  G06T7/70 ,  H04N17/00 ,  H04N5/232 ,  G06K9/62

    Abstract: A camera system captures images from a set of cameras to generate binocular panoramic views of an environment. The cameras are oriented in the camera system to maximize the minimum number of cameras viewing a set of randomized test points. To calibrate the system, matching features between images are identified and used to estimate three-dimensional points external to the camera system. Calibration parameters are modified to improve the three-dimensional point estimates. When images are captured, a pipeline generates a depth map for each camera using reprojected views from adjacent cameras and an image pyramid that includes individual pixel depth refinement and filtering between levels of the pyramid. The images may be used generate views of the environment from different perspectives (relative to the image capture location) by generating depth surfaces corresponding to the depth maps and blending the depth surfaces.

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