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Method and apparatus for context based map data retrieval

A technology of map data and data, applied in the field of map data retrieval based on the environment

Pending Publication Date: 2020-05-08
HERE GLOBAL BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Consequently, service providers and manufacturers face significant technical challenges in characterizing and then considering contextual information for storing, organizing, and retrieving associated map data

Method used

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  • Method and apparatus for context based map data retrieval
  • Method and apparatus for context based map data retrieval
  • Method and apparatus for context based map data retrieval

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Embodiment Construction

[0029] Examples of methods, apparatus and computer programs for storing and retrieving map data using environmental information priors are disclosed. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It is apparent, however, to one skilled in the art that the embodiments of the invention may be practiced without these specific details or with an equivalent arrangement. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the embodiments of the invention.

[0030] figure 1 is a diagram of a system capable of storing and retrieving map data using environmental information a priori, according to one embodiment. Conventionally, the storage of large amounts of map data is optimized by using tile-based schemes for efficient retrieval and stored in databases. In a tile-based scheme,...

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Abstract

An approach is provided for storing and retrieving map data using contextual information priors. The approach involves, for example, processing contextual information to determine a restricted range of location information relevant to at least one query. The approach also involves processing sensor data received from at least one sensor, the sensor data collected at at least one query location, todetermine semantic information. The approach further involves filtering the map data based, at least in part, on the restricted range of location information relevant to the at least one query, the semantic information, or a combination thereof.

Description

technical field [0001] The invention relates to a method and device for environment-based map data retrieval. Background technique [0002] Currently, map data storage is optimized using a tile-based scheme for efficient map data retrieval for location-based queries. However, retrieving specific map data may be inefficient in a tile-based scheme because a single map tile may have more or less map data than the user actually needs or wants. For example, a user may only need a small portion of a map tile, so retrieving the entire tile may waste bandwidth, memory, and other related resources. Furthermore, tree-based data structures implemented to store map data require frequent rebalancing and rehashing to maintain efficient data retrieval. Consequently, service providers and manufacturers face significant technical challenges in characterizing and then considering contextual information for storing, organizing, and retrieving associated map data. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/62G06N3/04G06N3/08G06F16/29
CPCG06N3/08G06F16/29G06V20/56G06V10/25G06N3/045G06F18/2135G06F18/24G01C21/3844G01C21/387G06F16/245
Inventor A·维斯瓦纳坦
Owner HERE GLOBAL BV
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