公开(公告)号：US09679413B2

公开(公告)日：2017-06-13

申请号：US14825384

申请日：2015-08-13

Applicant: Google Inc.

Inventor： Zhaoyang Xu ,  Dominik Philemon Kaeser ,  Joe Michael Kniss

IPC: G06T19/00 ,  G06T17/00 ,  G06T15/20 ,  G06T17/05

CPC classification number: G06T19/003 ,  G06T15/20 ,  G06T17/00 ,  G06T17/05 ,  G06T19/006 ,  G06T2207/30241

Abstract: Systems and methods to transition between viewpoints in a three-dimensional environment are provided. One example method includes obtaining data indicative of an origin position and a destination position of a virtual camera. The method includes determining a distance between the origin position and the destination position of the virtual camera. The method includes determining a peak visible distance based at least in part on the distance between the origin position and the destination position of the virtual camera. The method includes identifying a peak position at which the viewpoint of the virtual camera corresponds to the peak visible distance. The method includes determining a parabolic camera trajectory that traverses the origin position, the peak position, and the destination position. The method includes transitioning the virtual camera from the origin position to the destination position along the parabolic camera trajectory. An example system includes a user computing device and a geographic information system.

公开(公告)号：US20170046875A1

公开(公告)日：2017-02-16

申请号：US14825384

申请日：2015-08-13

Applicant: Google Inc.

Inventor： Zhaoyang Xu ,  Dominik Philemon Kaeser ,  Joe Michael Kniss

IPC: G06T19/00 ,  G06T17/00 ,  G06T15/20

CPC classification number: G06T19/003 ,  G06T15/20 ,  G06T17/00 ,  G06T17/05 ,  G06T19/006 ,  G06T2207/30241

Abstract: Systems and methods to transition between viewpoints in a three-dimensional environment are provided. One example method includes obtaining data indicative of an origin position and a destination position of a virtual camera. The method includes determining a distance between the origin position and the destination position of the virtual camera. The method includes determining a peak visible distance based at least in part on the distance between the origin position and the destination position of the virtual camera. The method includes identifying a peak position at which the viewpoint of the virtual camera corresponds to the peak visible distance. The method includes determining a parabolic camera trajectory that traverses the origin position, the peak position, and the destination position. The method includes transitioning the virtual camera from the origin position to the destination position along the parabolic camera trajectory. An example system includes a user computing device and a geographic information system.

Abstract translation: 提供了在三维环境中在视点之间转换的系统和方法。 一个示例性方法包括获得指示虚拟相机的原始位置和目的地位置的数据。 该方法包括确定虚拟相机的原始位置和目的位置之间的距离。 该方法包括至少部分地基于虚拟相机的原始位置和目的地位置之间的距离来确定峰值可见距离。 该方法包括识别虚拟照相机的视点对应于峰值可见距离的峰值位置。 该方法包括确定穿过原点位置，峰值位置和目的位置的抛物线相机轨迹。 该方法包括沿着抛物面相机轨迹将虚拟相机从原始位置转移到目的位置。 示例系统包括用户计算设备和地理信息系统。