公开(公告)号：US09262852B1

公开(公告)日：2016-02-16

申请号：US14587545

申请日：2014-12-31

Applicant: Google Inc.

Inventor： Roland Kehl ,  Matthias Heiler ,  Gokhan Hasan Bakir

IPC: G06K9/00 ,  G06T11/20

CPC classification number: G06T11/206 ,  G06K9/00651 ,  G06K9/469 ,  G06T11/203

Abstract: A system and method for generating a road network based on satellite imagery. Plural pixels corresponding to satellite imagery of a region are obtained. For each of the plural pixels, a probability value corresponding to the probability that the pixel belongs within the road network is calculated. A grayscale image is formed based on the calculated probability values. Plural curves are produced based on the grayscale image, wherein the producing of each curve includes positioning a shape on the grayscale image so that an average intensity of the grayscale image covered by the shape exceeds a preset threshold, moving the shape about the grayscale image while the average intensity is maintained, and tracking the movement of the shape to produce the curve. A planar-connected graph is generated by connecting at least portions of the plural curves. The planar-connected graph corresponds to the road network.

公开(公告)号：US09208171B1

公开(公告)日：2015-12-08

申请号：US14018989

申请日：2013-09-05

Applicant: Google Inc.

Inventor： Daniel Cotting ,  Krzysztof Sikora ,  Roland Kehl ,  Boris Bluntschli ,  Wojciech Stanislaw Smietanka ,  Martin Stefcek

IPC: G06F7/00 ,  G06F17/30

CPC classification number: G06F17/30244 ,  G06F17/30241 ,  G06F17/30265

Abstract: Aspects of the disclosure relate generally to systems and methods for geographically locating images. For example, images from different sources may be associated with different types of location information or simply none at all. In order to reduce inconsistency among images, location information may be gathered for an image using bitmap processing, metadata processing, and information retrieved from where the image was found. This location information can be filtered to remove less reliable or conflicting information. Images may be clustered based on their appearance on an interactive online resource that corresponds to a user-defined event, based on image similarity, and by their appearance in a user photo album. The location information of the images of a cluster is then copied to all of the other images of that cluster.

Abstract translation: 本公开的方面一般涉及用于地理位置定位图像的系统和方法。 例如，来自不同来源的图像可以与不同类型的位置信息相关联，或者根本不是关联的。 为了减少图像之间的不一致性，可以使用位图处理，元数据处理和从图像被找到的信息获取的信息来收集图像的位置信息。 可以对该位置信息进行过滤以消除不太可靠或冲突的信息。 图像可以基于它们在基于图像相似性的对应于用户定义的事件的交互式在线资源上的外观以及它们在用户相册中的外观而聚类。 然后将集群的映像的位置信息复制到该集群的所有其他映像。