The present disclosure generally relates to a methods and systems for compensating for changes in the absolute position of locations with respect to the Earth's surface which occur over time due to crustal dynamics. The invention is particularly, although not exclusively, concerned with such compensation in the context of methods using digital map data, for example, methods of localization of a vehicle.

An information processing device includes: a first storage unit configured to store a local map data set created or updated at a first time; a map information acquisition unit configured to acquire at least a part of a distribution map data set from a map data distribution system via a wireless communication network; a second storage unit configured to associate and store (i) data that is acquired by the map information acquisition unit, from among data constituting a first distribution map data set created or updated at a second time, and (ii) information indicating a first acquisition time when the data is acquired, or information indicating the second time; and a second determination unit configured to determine whether the map data distribution system has stored a second distribution map data set created or updated at a third time.

A path providing device configured to provide a path information to a vehicle includes: a communication unit configured to receive, from a server, map information including a plurality of layers of data, an interface unit configured to receive sensing information from one or more sensors disposed at the vehicle, a processor, and an event data recorder (EDR) configured to store vehicle status information including first sensor data sensed by a first sensor associated with an operation of the vehicle, and second sensor data sensed by a second sensor associated with surrounding information of the vehicle. The processor is configured to determine an optimal path for guiding the vehicle from an identified lane, generate autonomous driving visibility information, update the optimal path based on dynamic information and the autonomous driving visibility information, and include the vehicle status information stored in the EDR in the autonomous driving visibility information.

A map data processing method is performed at a computing device, the method including: detecting a positioning result updated in a three-dimensional space; determining a field of view area corresponding to the updated positioning result; obtaining a tile corresponding to the updated positioning result and a tile corresponding to the field of view area; dynamically loading, into an internal memory space, the tile corresponding to the updated positioning result, and the tile corresponding to the field of view area; and rendering, based on the loaded tiles, an image, in the three-dimensional space, located on the positioning result and corresponding to the field of view area.

According to an aspect of an embodiment, operations may comprise receiving a search query for points near a query-point, accessing a compressed octree representation of a point cloud comprising 3D points of a region, and traversing the compressed octree representation to identify regions that overlap a search space by, marking a current node as overlapping the search space responsive to determining that the current node is a leaf node, identifying a child node of the current node and performing a nearest neighbor search in the child node responsive to determining that a region represented by the current node overlaps the search space, and identifying a sibling node of the current node and performing the nearest neighbor search in the sibling node responsive to determining that a region represented by the current node does not overlap the search space.

The invention relates to a method, performed by at least one apparatus. The method comprises obtaining sample measurements at least in part comprising altitude information and observed in an area at least in part represented by an altitude map, the altitude map comprising sub-sections representing respective sub-areas of the area; The method further comprises determining altitude estimates from the altitude information. The method further comprises updating one or more altitude estimate distributions associated with respective sub-sections of the altitude map based on the determined altitude estimates. The method further comprises determining, for one or more sub-sections of the altitude map, whether a respective sub-section of the altitude map represents a single level sub-area or multilevel sub-area, based on respective altitude estimate distributions associated with respective sub-sections of the altitude map.

The invention is a map data updating method for updating map data on a client device (10) by means of a server (11) storing a latest version of the map data, wherein the map data comprises map tiles having layers. The server (11) stores association information defining groups of associated layers, wherein each layer in a group is updated on the client device (10) if an update request for at least one layer in the group is received by the server (11) from the client device (10). The invention also relates to a map data updating system, a computer program product and a computer-readable medium for implementing the method.

A method, apparatus and computer program product are provided for quantifying public transport coverage. In this regard, for a traveler journey beginning at a starting location, transit time data is determined. The transit time data is indicative of a predicted amount of time to travel between the starting location and a departure location associated with a public transport boarding location for a public transport. Furthermore, waiting time data is determined. The waiting time is indicative of a predicted amount of time to wait at the departure location prior to departure via the public transport. Additionally, time to departure data is computed based on a combination of the transit time data and the waiting time data. For the traveler journey, a time to departure probability prediction is also determined.

An information processing device includes a display configured to display a mesh of mesh information based on longitude and latitude. A mesh is composed of a plurality of blocks. The mesh information includes area information about a traveling area where a moving body can travel. The area information is the additional information added to each of the plurality of blocks. The additional information is the display information that is weighted and sorted, based on the number of overlapping points of the plurality of locus logs.

Systems and methods for generating mapping data for an autonomous vehicle (e.g., robotic devices). The methods include obtaining three-dimensional environmental data of an environment from a distance sensor. The three-dimensional environmental data includes information relating to one or more objects in the environment. The method further includes identifying at least one planar layer of two-dimensional data from the three-dimensional environmental data to be included in mapping data based on one or more characteristics of an autonomous vehicle, generating mapping data comprising the at least one planar layer of two-dimensional data from the three-dimensional environmental data, and transmitting the mapping data to the autonomous vehicle for use during operation within the environment.