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Electronic map construction method and device, equipment and medium

An electronic map and construction method technology, applied in the field of data processing, can solve the problems of inability to retain visual characteristics and low rendering efficiency, and achieve the effect of retaining important details and visual characteristics, improving rendering efficiency, and facilitating screening

Pending Publication Date: 2020-05-29
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] Rendering through spatial query will still show useless details, and the rendering efficiency is low; rendering through data filtering cannot preserve visual characteristics

Method used

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  • Electronic map construction method and device, equipment and medium
  • Electronic map construction method and device, equipment and medium
  • Electronic map construction method and device, equipment and medium

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Embodiment Construction

[0062] Exemplary embodiments of the present application are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present application to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

[0063] figure 1It is a schematic flowchart of a method for constructing an electronic map provided according to an embodiment of the present application. This embodiment is applicable to the case of rendering an electronic map. Typically, this embodiment may be applicable to situations where high precision is required, for example, a situation where the density of ...

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Abstract

The invention discloses an electronic map construction method and device, equipment and a medium, relates to the technical field of electronic maps, and can be used for automatic driving. According tothe specific implementation scheme, a bitmap type electronic map is constructed according to the size of an original map and the obtained target resolution; screening pixels in the bitmap type electronic map; and constructing a vector type electronic map according to the screening result. According to the scheme, the pixels containing more visual features can be screened out, so that the visual features are reserved in the electronic map, useless details are filtered out, important details are displayed, and the accuracy of the electronic map is improved.

Description

technical field [0001] The present application relates to the field of data processing, in particular to an electronic map technology that can be used for automatic driving, and in particular to an electronic map construction method, device, equipment and medium. Background technique [0002] Currently, as the density of map information increases, the physical size of map data also increases, thus reducing the rendering efficiency of the map data. In order to speed up the rendering efficiency of map data, the rendering is generally performed through spatial query, and only the data of the current spatial window is rendered. Or, filter data according to layers and data attributes to achieve preset precision rendering. [0003] Rendering through spatial query will still show useless details, and the rendering efficiency is low; rendering through data filtering cannot preserve visual characteristics. Contents of the invention [0004] The embodiments of the present applicat...

Claims

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Application Information

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IPC IPC(8): G06T11/20G06T9/00G06F16/29
CPCG06T11/206G06T9/008G06F16/29
Inventor 高巍
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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