公开(公告)号：US09129428B2

公开(公告)日：2015-09-08

申请号：US13706243

申请日：2012-12-05

Applicant: Apple Inc.

Inventor： Aroon Pahwa ,  Edward Kandrot ,  Christopher Blumenberg ,  Jeffrey H. Hultquist ,  Robert R. Cook ,  Billy P. Chen ,  Patrick S. Piemonte

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

CPC classification number: G06T15/005 ,  G06T15/20 ,  G06T17/05

Abstract: Methods and systems are provided for efficiently identifying map tiles of a raised-relief map to retrieve from a server. An electronic device can use estimates of height(s) for various region(s) of the map to determine map tiles that are likely viewable from a given position of a virtual camera. The device can calculate the intersection of the field of view of the virtual camera with the estimated heights to determine a location of the map tiles (e.g., as determined by a 2D grid) needed. In this manner, the electronic device can retrieve, from a map server, the map tiles needed to display the image, without retrieving extraneous tiles that are not needed. Identifying such tiles can reduce the amount of data to be sent across a network and reduce the number of requests for tiles, since the correct tiles can be obtained with the first request.

Abstract translation: 提供了方法和系统，用于有效地识别浮雕图的地图瓦片以从服务器检索。 电子设备可以使用地图的各个区域的高度的估计来确定可能从虚拟相机的给定位置可见的地图瓦片。 设备可以计算虚拟摄像机的视野与估计高度的交集，以确定所需的地图瓦片的位置（例如，由2D网格确定）。 以这种方式，电子设备可以从地图服务器检索显示图像所需的地图瓦片，而不检索不需要的无关瓦片。 识别这样的瓦片可以减少要通过网络发送的数据量并且减少对瓦片的请求数量，因为可以利用第一请求获得正确的瓦片。

公开(公告)号：US09218685B2

公开(公告)日：2015-12-22

申请号：US13708349

申请日：2012-12-07

Applicant: Apple Inc.

Inventor： Patrick S. Piemonte ,  Billy P. Chen ,  Christopher Blumenberg ,  Edward Kandrot

IPC: G06T15/00 ,  G06K9/40 ,  G06T15/50 ,  G06T19/20 ,  G01C21/36

CPC classification number: G01C21/00 ,  G01C21/3638 ,  G01C21/3682 ,  G06T15/00 ,  G06T15/503 ,  G06T19/20 ,  G06T2210/62 ,  G06T2219/2012

Abstract: Systems and methods for rendering 3D maps may highlight a feature in a 3D map while preserving depth. A map tool of a mapping or navigation application that detects the selection of a feature in a 3D map (e.g., by touch) may perform a ray intersection to determine the feature that was selected. The map tool may capture the frame to be displayed (with the selected feature highlighted) in several steps. Each step may translate the map about a pivot point of the selected map feature (e.g., in three or four directions) to capture a new frame. The captured frames may be blended together to create a blurred map view that depicts 3D depth in the scene. A crisp version of the selected feature may then be rendered within the otherwise blurred 3D map. Color, brightness, contrast, or saturation values may be modified to further highlight the selected feature.

Abstract translation: 用于渲染3D地图的系统和方法可以突显3D地图中的一个特征，同时保留深度。 用于检测3D地图中特征选择（例如通过触摸）的映射或导航应用的地图工具可以执行光线相交以确定所选择的特征。 地图工具可以通过几个步骤捕获要显示的帧（所选特征突出显示）。 每个步骤可以将地图关于所选地图特征的枢轴点（例如，在三个或四个方向）翻译以捕获新的帧。 捕获的帧可以混合在一起以创建描绘场景中的3D深度的模糊地图视图。 然后可以在否则模糊的3D地图中呈现所选特征的清晰版本。 可以修改颜色，亮度，对比度或饱和度值，以进一步突出显示所选特征。

公开(公告)号：US20130321403A1

公开(公告)日：2013-12-05

申请号：US13708349

申请日：2012-12-07

Applicant: APPLE INC.

Inventor： Patrick S. Piemonte ,  Billy P. Chen ,  Christopher Blumenberg ,  Edward Kandrot

IPC: G06T15/00

CPC classification number: G01C21/00 ,  G01C21/3638 ,  G01C21/3682 ,  G06T15/00 ,  G06T15/503 ,  G06T19/20 ,  G06T2210/62 ,  G06T2219/2012

Abstract: Systems and methods for rendering 3D maps may highlight a feature in a 3D map while preserving depth. A map tool of a mapping or navigation application that detects the selection of a feature in a 3D map (e.g., by touch) may perform a ray intersection to determine the feature that was selected. The map tool may capture the frame to be displayed (with the selected feature highlighted) in several steps. Each step may translate the map about a pivot point of the selected map feature (e.g., in three or four directions) to capture a new frame. The captured frames may be blended together to create a blurred map view that depicts 3D depth in the scene. A crisp version of the selected feature may then be rendered within the otherwise blurred 3D map. Color, brightness, contrast, or saturation values may be modified to further highlight the selected feature.

Abstract translation: 用于渲染3D地图的系统和方法可以突显3D地图中的一个特征，同时保留深度。 用于检测3D地图中特征选择（例如通过触摸）的映射或导航应用的地图工具可以执行光线相交以确定所选择的特征。 地图工具可以通过几个步骤捕获要显示的帧（所选特征突出显示）。 每个步骤可以将地图关于所选地图特征的枢轴点（例如，在三个或四个方向）翻译以捕获新的帧。 捕获的帧可以混合在一起以创建描绘场景中的3D深度的模糊地图视图。 然后可以在否则模糊的3D地图中呈现所选特征的清晰版本。 可以修改颜色，亮度，对比度或饱和度值，以进一步突出显示所选特征。

公开(公告)号：US20130321411A1

公开(公告)日：2013-12-05

申请号：US13706243

申请日：2012-12-05

Applicant: APPLE INC.

Inventor： Aroon Pahwa ,  Edward Kandrot ,  Christopher Blumenberg ,  Jeffrey H. Hultquist ,  Robert R. Cook ,  Billy P. Chen ,  Patrick S. Piemonte

IPC: G06T15/00

CPC classification number: G06T15/005 ,  G06T15/20 ,  G06T17/05

Abstract: Methods and systems are provided for efficiently identifying map tiles of a raised-relief map to retrieve from a server. An electronic device can use estimates of height(s) for various region(s) of the map to determine map tiles that are likely viewable from a given position of a virtual camera. The device can calculate the intersection of the field of view of the virtual camera with the estimated heights to determine a location of the map tiles (e.g., as determined by a 2D grid) needed. In this manner, the electronic device can retrieve, from a map server, the map tiles needed to display the image, without retrieving extraneous tiles that are not needed. Identifying such tiles can reduce the amount of data to be sent across a network and reduce the number of requests for tiles, since the correct tiles can be obtained with the first request.

Abstract translation: 提供了方法和系统，用于有效地识别浮雕图的地图瓦片以从服务器检索。 电子设备可以使用地图的各个区域的高度的估计来确定可能从虚拟相机的给定位置可见的地图瓦片。 设备可以计算虚拟摄像机的视野与估计高度的交集，以确定所需的地图瓦片的位置（例如，由2D网格确定）。 以这种方式，电子设备可以从地图服务器检索显示图像所需的地图瓦片，而不检索不需要的无关瓦片。 识别这样的瓦片可以减少要通过网络发送的数据量并且减少对瓦片的请求数量，因为可以利用第一请求获得正确的瓦片。