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Street view image recognition method and device

A recognition method and image technology, applied in the field of maps, can solve the problems of inability to recognize images, reduce the matching efficiency between street view images and roads, and achieve the effect of improving efficiency.

Active Publication Date: 2017-02-01
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, the street view image matching with the road needs to collect images of the city by surveying and mapping vehicles. image
In the existing technology, it is impossible to identify this repeatedly collected image, which reduces the efficiency of matching street view images with roads

Method used

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  • Street view image recognition method and device
  • Street view image recognition method and device

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Experimental program
Comparison scheme
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Embodiment 1

[0023] figure 1 It is a flow chart of a street view image recognition method provided in Embodiment 1 of the present invention, the method is executed by a street view image recognition device, the device is executed by software and / or hardware, and the device is generally configured in a server . Such as figure 1 As shown, the technical solution provided by this embodiment is specifically as follows:

[0024] S110: Determine a target road and an image matching the target road.

[0025] In this embodiment, the information of each road, the images matching the information of each road, the collection time of each image, and the location of the collection point are stored in the database, and other data may also be stored in the database. Wherein, the road information includes road identification information, road GEO data, and the like. The identification information of the road may be number information of the road or the name of the road.

[0026] In this embodiment, the...

Embodiment 2

[0035] Figure 2a It is a flow chart of a street view image recognition method provided in Embodiment 2 of the present invention. On the basis of Embodiment 1 above, optionally, according to the positions of the collection points of each image, it is determined that the collection point is on the target road The projection position on the screen, and filtering each of the images according to the projection position includes:

[0036] determining the projection position of the collection point on the target road according to the location of the collection point of each of the images;

[0037] The image whose distance from the projection position is smaller than the set overlapping threshold is subjected to deduplication processing.

[0038] Thus, by de-duplicating the images whose projection position distance is smaller than the set overlapping threshold value, it is possible to identify a large number of repeatedly collected street view images that match the road, and accurat...

Embodiment 3

[0047] Figure 3a It is a flow chart of a street view image recognition method provided by an embodiment of the present invention. On the basis of the first embodiment above, optionally, according to the positions of the collection points of each image, it is determined that the collection point is on the target road The projection position, and filtering each of the images according to the projection position includes:

[0048] Divide each of the images into at least two image sets according to the acquisition time of the acquisition vehicle, and determine the target image set according to the weight values ​​of the at least two image sets;

[0049] Projecting the collection point positions of the images in each image set onto the target road to determine the projection position;

[0050] Comparing the projection position of each image in the non-target image set with the image projection position in the target image set one by one;

[0051] If the distance of the projectio...

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Abstract

The embodiment of the invention discloses a street view image recognition method and device. The street view image recognition method comprises the following steps: confirming a target road and images matched with the target road; according to the positions of acquisition points of the images, confirming projection positions of the acquisition points on the target rod; screening the images according to the projection positions. By adopting the embodiment of the invention, a great number of street view images which are acquired repeatedly and are matched with roads can be recognized, street view images matched with the roads can be precisely displayed on a panoramic map, and the efficiency in matching the street view images with the roads can be improved.

Description

technical field [0001] Embodiments of the present invention relate to map technology, and in particular to a method and device for recognizing street view images. Background technique [0002] With the rapid development of the economy, the diversification of means of transportation provides people with fast and efficient travel methods, thus generating a large number of points of interest (POI) search and travel route planning needs, and electronic maps have made great progress. The development of street view service came into being. Users can browse street view images matched with roads through the electronic map. [0003] Among them, the street view image matching with the road needs to collect images of the city by surveying and mapping vehicles. image. In the prior art, the repeatedly collected images cannot be identified, which reduces the efficiency of matching street view images with roads. Contents of the invention [0004] The present invention provides a meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/29G06F16/51
Inventor 王立琦黄盼华
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD