Road section type presumption method

A road section and type technology, applied in the field of road section type estimation, can solve the problem of inaccurate estimation, and achieve the effects of high accuracy, high precision and high flexibility

Active Publication Date: 2015-02-04
GUANGZHOU HKUST FOK YING TUNG RES INST
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[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] figure 1 It is a schematic flow chart of an embodiment of the road segment type estimation method provided by the present invention, such as figure 1 shown, including steps:

[0037] S101. Collect historical trajectory data of a plurality of vehicles traveling on the road section to be estimated, and perform statistics on the historical trajectory data, so as to obtain statistical features of the road section to be estimated.

[0038] Specifically, step S1...

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Abstract

The invention discloses a road section type presumption method. The road section type presumption method comprises the steps of acquiring historical trajectory data of running of a plurality of automobiles on a road section to be presumed and statistically gathering the historical trajectory data to obtain the statistic characteristic of the road to be presumed; extracting the topological characteristic of the road section to be presumed from topological structure data of a road network to which the road section belongs; merging the statistical characteristic of the road section to be presumed with the topological characteristic to obtain a pseudo characteristic vector; establishing a logical regression model according to the pseudo characteristic vector of the road section to be presumed to obtain a first primary presumed type of the road section to be presumed. The road section type presumption method has the advantages of higher presumption accuracy and higher flexibility in use.

Description

technical field [0001] The invention relates to the field of crowdsourcing map data processing, in particular to a road section type estimation method. Background technique [0002] In recent years, crowdsourced map services have emerged as a serious competitor to public commercial map service providers such as Google Maps. Unlike commercial map services that are generated by a small number of professionals through remote sensing imagery and measurement data, crowdsourced maps are maintained by thousands of registered users who are constantly creating and updating maps through sophisticated map editors, Such as adding, deleting and modifying roads. Therefore, crowdsourced map service is more in line with the changing trend of today's map service than the existing commercial map service. For example, it is reported that Open Street Map (OSM), the world's largest crowdsourcing map project, can provide richer and more timely map update data than all other datasets. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/3347G06F16/29G01C21/32G01C21/3822G01C21/3841
Inventor 丁烨谭浩宇高民倪明选
Owner GUANGZHOU HKUST FOK YING TUNG RES INST
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