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Three-dimensional map building method and device

A technology of three-dimensional map and construction method, which is applied in the field of vehicle positioning, can solve the problems of low accuracy and poor robustness of three-dimensional maps, and achieve the effect of improving robustness and accuracy

Inactive Publication Date: 2018-08-21
ZEBRED NETWORK TECH CO LTD
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Problems solved by technology

However, using the existing construction method, the accuracy of the constructed 3D map is not high, and the robustness is poor

Method used

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  • Three-dimensional map building method and device
  • Three-dimensional map building method and device
  • Three-dimensional map building method and device

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[0066]Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0067] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention de...

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Abstract

The invention provides a three-dimensional map building method and device. The method comprises steps: at least two environmental images of a to-be-built area are acquired; preset feature informationin the at least two environmental images is extracted, wherein the preset feature information comprises geometric feature information or the preset feature information comprises geometric feature information and semantic feature information; the preset feature information corresponding to target objects in the to-be-built area is associated to obtain a feature set corresponding to the target objects; according to the feature set of each target object, three-dimensional spatial information and three-dimensional position information of a vehicle are built; and according to the three-dimensionalspatial information and the three-dimensional position information of the vehicle, a three-dimensional map is built. The three-dimensional map building method and the device provided in the inventionhave the advantages that the three-dimensional map precision is improved, and the calculation robustness is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle positioning, in particular to a method and device for constructing a three-dimensional map. Background technique [0002] Three-dimensional map construction is the core technology of environmental perception. With the continuous development of three-dimensional technology, it is particularly important to construct high-precision three-dimensional maps. [0003] In the prior art, when constructing a three-dimensional map, point features in an image are extracted, and feature association is performed through the point features, so as to complete the construction of the three-dimensional map. However, with the existing construction method, the precision of the constructed three-dimensional map is not high, and the robustness is poor. [0004] Therefore, how to improve the accuracy of the constructed three-dimensional map and how to improve the robustness of the calculation is an urgent problem to be...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/00
CPCG06T15/005
Inventor 卢彦斌胡祝青刘青
Owner ZEBRED NETWORK TECH CO LTD
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