The present disclosure is directed to systems and methods for providing a stable topological representation of pathway networks as well as features associated with these networks. The disclosure is exemplified using road networks which have applications in mapping, navigation, and autonomous vehicles. Extensions may be learned through practice of the disclosure. Utilizing implementations disclosed herein may provide advantages for data conflation between different mapping systems and map data while improving overall stability by developing a common reference standard that is tied to semantic features rather than abstract geographic representations.

An end-to-end system for data generation, map creation using the generated data, and localization to the created map is disclosed. Mapstreams – or streams of sensor data, perception outputs from deep neural networks (DNNs), and/or relative trajectory data – corresponding to any number of drives by any number of vehicles may be generated and uploaded to the cloud. The mapstreams may be used to generate map data – and ultimately a fused high definition (HD) map – that represents data generated over a plurality of drives. When localizing to the fused HD map, individual localization results may be generated based on comparisons of real-time data from a sensor modality to map data corresponding to the same sensor modality. This process may be repeated for any number of sensor modalities and the results may be fused together to determine a final fused localization result.

Systems, methods, and computing devices for building, operating and using map systems with signature-based map caches are disclosed. Based on the desired map properties included in a formatted map request, a map signature can be generated. The map signature can be used to access a signature based map cache to determine whether a map with identical map properties has been previously generated and stored in cache or otherwise available for retrieval. If the map signature exists in the map cache, the corresponding map can be delivered to a map client. If the map signature does not exist in the map cache, then a map can be generated or rendered based on the map properties in the map request. Once the map is generated, it can be saved to the map cache along with associated map signature for future retrieval.

The present invention has an object to provide a technique capable of reducing the size of update data. A map information processing apparatus includes a data extractor that extracts a difference between a shape of a past road link and a shape of a current road link as update data for updating predetermined map information. The data extractor does not extract the difference as the update data in a case where one road link of the past road link and the current road link is included in a buffer region obtained by extending the shape of the other road link by a predetermined distance.

An object of a map providing system of the present invention is to specify a range of map data that may be newly prepared, and to increase an opportunity to use a latest map. A map providing system compares route information or road information on a first map stored in a first map storage portion (71) with road information on a second map stored in a second map storage portion (21), selects an update point of the second map on the basis of road information not included in the second map, and requests a map OTA server 5 that manages latest update data of the second map to provide the update data of the update point of the second map.

A method of updating map data, an electronic device, and a storage medium, which relate to a field of computer technology, and in particular to intelligent transportation technology. The method of updating map data includes: acquiring a traffic event text, where the traffic event text includes location data and reference direction data; determining candidate road data in the map data based on the location data; determining target road data from the candidate road data based on the reference direction data; updating the target road data based on the traffic event text.

The present disclosure provides a map data processing method, an electronic device and a storage medium, relates to a technical field of data processing, and in particular to the field of map data processing. A specific implementation solution is as follows: receiving first data encapsulated in a form of offline data, the first data being used to characterize low-frequency data in the map data; obtaining second data after initiating a first online request, the second data being used to characterize high-frequency data in the map data; and performing merging processing on the first data and the second data to obtain target data to be displayed in a map. By adopting the present disclosure, the timeliness of map data display may be improved.

A processor of a device for providing a route, provided in a server, according to an embodiment of the present invention sets a segment that serves as a standard for generating an optimal route in lane units, generates an optimal route in lane units on the basis of the set segment, and varies the length of the segment on the basis of satisfying a preset condition.

A computer system operates to determine a traction value for each of a plurality of regions of a road network. The computer system identifies a region of the road network for which the traction value is known. The computer system may direct a vehicle to operate over a region of the road network where the traction value is known, in order to obtain sensor data that is indicative of a traction capability of the vehicle.

Techniques for displaying a 3d map view of a 3d geographical map are provided. A database stores data which defines the 3d geographical map in a layered hierarchy comprising data layers which can be individually rendered for the 3d map view. The database comprises a data layer of a digital terrain model which is modelling a terrain surface and a data layer of a 3d road network comprising 3d road elements. A processor is configured for selecting specific data layers of the database in response to a resolution setting of the 3d map view and to render the 3d map view using the selected specific data layer.