Huawei Technologies Co., Limited

Zehui Kang

Hao Yang

Weiyang Li

Wei Fang

Siliang Du

A navigation method, device, and system are provided in this application. The method includes: obtaining a first target location and a second target location (), where the first target location is a location closest to a start location on K road segments, the second target location is a location closest to an end location on the K road segments, and K is a positive integer; obtaining a first path from the first target location to the second target location based on a vector pathfinding algorithm and the K road segments (); obtaining a second path from the start location to the first target location and a third path from the second target location to the end location (); and determining a fourth path from the start location to the end location ().

Navigation method, device, and system

This application relates to methods and apparatuses for presenting object annotation information. An example method includes: obtaining a target object in a specified scene, where the specified scene is a scene presented at a target location; and presenting annotation information of the target object on an annotation facade that is of the target object and that is presented on a display interface, where the annotation facade is determined from at least two visible facades of the target object based on projection regions that are for the at least two visible facades and that are presented on the display interface, and the visible facade is a facade visible to the target location in exterior facades of the target object.

Method and apparatus for presenting object annotation information, electronic device, and storage medium

This application provides a visual feature database construction method, including: obtaining a database creation image; performing feature extraction on the database creation image to obtain a feature point of the database creation image and a descriptor of the feature point of the database creation image; intersecting a ray corresponding to the feature point of the database creation image with a 3D model, to determine the 3D position of the intersection point at which the ray intersects with the 3D model as the 3D position of the feature point of the database creation image; and writing the descriptor of the feature point of the database creation image and the database creation image into a visual feature database, to construct the visual feature database.

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Beijing, China

Zehui Kang