Road network difference method and device, electronic equipment and storage medium

A differential method and differential technology, applied in the field of electronic maps, can solve the problems of erroneous differential results, affecting matching differential, poor accuracy of differential results, etc., to achieve the effect of improving generalization and accuracy.

Pending Publication Date: 2022-05-03
HANHAI INFORMATION TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing road network difference method includes two sub-processes of matching and difference, and belongs to the two-stage method. This method has the following disadvantages: road network matching is given two roads to determine whether they match and gives the matching confidence. The network matching itself is relatively complicated, and generally needs to rely on the characteristics of the road shape, distance, topology, and road attributes. Dependency, as mentioned above, road network matching generally uses features such as road attributes and topology, which requires source data to have these features, and the source data may not only be complete road network data produced by map data manufacturers, but may also be based on The road network generated by extracting satellite images, trajectories, etc., these data have no road attributes and lack of complete topological relationship, which affects the subsequent matching difference;

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  • Road network difference method and device, electronic equipment and storage medium
  • Road network difference method and device, electronic equipment and storage medium
  • Road network difference method and device, electronic equipment and storage medium

Examples

Experimental program
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Example Embodiment

[0028] Embodiment 1

[0029] The embodiment provides a road network difference method, such as Figure 2 As shown, the method includes steps 210 to 240.

[0030] In the first step, the data of the road network to be divided is taken as the data of the road network, and the data of the road network to be divided is taken from the first step, and the data of the road network to be divided is taken from the second step.

[0031] Among them, the first road network data and the second road network data can be road network data from two different sources, or road network data from different versions of the same source. The first road network data and the second road network data are vector data. The area to be differentiated is the actual geographical area to be differentiated by road network, which is determined in advance, and can be expressed by longitude and latitude coordinates.

[0032] After determining the area to be differentiated, query the roads included in the area to be diff...

Example Embodiment

[0071] Example 2

[0072] The embodiment provides a road network difference device, such as Figure 6 As shown, the road network difference device 600 includes:

[0073] The road data interception module 610 is used to intercept the road data of the area to be differentiated from the first road network data as the first road data, and intercept the road data of the area to be differentiated from the second road network data as the second road data;

[0074] A rasterization processing module 620 for rasterizing the vector data of the first road data to obtain the first road image, and rasterizing the vector data of the second road data to obtain the second road image;

[0075] A semantic segmentation module 630 for inputting the first road image and the second road image into a semantic segmentation model, performing semantic segmentation processing on the second road image relative to the first road image through the semantic segmentation model to obtain a difference result image; ...

Example Embodiment

[0105] Example 3

[0106] The embodiment of the application also provides an electronic device, such as Figure 7 As shown, the electronic device 700 may include one or more processors 710 and one or more memories 720 connected to the processor 710. The electronic device 700 may also include an input interface 730 and an output interface 740 for communicating with another device or system. The program code executed by the processor 710 may be stored in the memory 720.

[0107] The processor 710 in the electronic device 700 calls the program code stored in the memory 720 to execute the road network difference method in the above embodiment.

[0108] The above elements in the above electronic equipment can be connected to each other through a bus, such as one of data bus, address bus, control bus, expansion bus and local bus or any combination thereof.

[0109] The embodiment of the application also provides a computer-readable storage medium on which a computer program is stored. Wh...

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Abstract

The embodiment of the invention discloses a road network difference method and device, electronic equipment and a storage medium, and the method comprises the steps: respectively intercepting road data of a to-be-differentiated region from first road network data and second road network data, and obtaining first road data and second road data; performing vector data rasterization processing on the first road data and the second road data to obtain a first road image and a second road image; inputting the first road image and the second road image into a semantic segmentation model, and performing semantic segmentation processing on the second road image relative to the first road image through the semantic segmentation model to obtain a difference result image; and performing raster data vectorization processing on the difference result image to convert the difference result image into difference results corresponding to the first road data and the second road data. According to the embodiment of the invention, the global features of the road network in the to-be-differentiated region are comprehensively considered, and the accuracy of road network difference can be improved.

Description

technical field [0001] The embodiments of the present application relate to the technical field of electronic maps, and in particular to a road network difference method, device, electronic equipment, and storage medium. Background technique [0002] Road network difference refers to comparing two different road network data to find out the difference. For the road network data of the same source, the incremental part of the two versions of the road network data can be obtained through the road network difference. Perform quality checks on large amounts of data to ensure the quality of the new version of data. For heterogeneous road network data, by making a difference with the road network data of the parent database, the missing and redundant roads of the road network data of the parent database can be obtained, and then the heterogeneous road network data can be fused to update the road network data of the parent database and supplement The road network data of the moth...

Claims

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Application Information

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IPC IPC(8): G06T5/50G06T7/11
CPCG06T5/50G06T7/11G06T2207/30236
Inventor 张巍巍蒋子谦李亮
Owner HANHAI INFORMATION TECH SHANGHAI
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