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Geographic positioning system and method based on image recognition cloud service

A geolocation and image recognition technology, applied in measuring devices, instruments, surveying and navigation, etc., can solve the problems of huge data volume in the location database, GPS cannot be used for indoor positioning, and slow image matching speed, etc., to achieve strong adaptability and narrow down The effect of improving the search range and accuracy

Pending Publication Date: 2018-07-24
樊晓东
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since GPS cannot be used for indoor positioning, and the positioning accuracy provided by the general civilian GPS mobile terminal system is about 10 meters, within the scope of GPS calibration, further accurate positioning; or explore new spatial positioning methods to improve positioning accuracy is very necessary
Chinese patent document (Application No. 200480031940.1) relates to a system and method for geolocation using imaging technology. In this scheme, a wireless device acquires an image and sends the image to a processing center, which retrieves the geographic location of the image. The location is fed back to the wireless device; the Chinese patent document (application number 201110325070.0) discloses a geographical location positioning method and system based on image recognition cloud service. Problems of low efficiency and slow image matching speed

Method used

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  • Geographic positioning system and method based on image recognition cloud service
  • Geographic positioning system and method based on image recognition cloud service
  • Geographic positioning system and method based on image recognition cloud service

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Experimental program
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Embodiment 1

[0082] Embodiment 1: as image 3 As shown, in this embodiment, the geographic positioning system based on image recognition cloud service is composed of server 1 and mobile terminal 2; server 1 includes service management unit 11, database configuration unit 12, feature matching unit 13 and first transmission unit 14 The service management unit 11 is used to coordinate the work of the server 1, and it can contain a storage unit, i.e. a storage unit, for storing the database; the database configuration unit 12 is used to set up a temporary query database; the feature matching unit 13 is used to match the features of the scene image and query the image features in the database to seek optimal matching; the first transmission unit 14 communicates with the mobile terminal 2, and the communication mode can be a 3G\4G network or a wifi network; the mobile terminal 2 includes a terminal management unit 21, a location information collection unit 22. Image acquisition unit 23, image an...

Embodiment 2

[0089] Embodiment 2: as Figure 4 As shown, in this embodiment, the difference from Embodiment 1 is that the image analysis unit 16 is set on the server 1, and the image collected by the image acquisition unit 23 is directly sent to the server 1 by the mobile terminal 2, and the server 1 integrates the The image analysis unit 16 on it extracts image features from the image; this embodiment can reduce the hardware requirements for the mobile terminal 2; specifically, the geographic positioning system based on image recognition cloud service is composed of a server 1 and a mobile terminal 2; The server 1 includes a service management unit 11, a database configuration unit 12, a feature matching unit 13, an image analysis unit 16 and a first transmission unit 14; the service management unit 11 is used to coordinate the work of the server 1, and it may contain a storage unit, i.e. a storage unit, For storing the database; the database configuration unit 12 is used to set up a temp...

Embodiment 3

[0096] Embodiment 3: as Figure 5 Shown is the structural diagram of the mobile terminal of Embodiment 3. In this embodiment, the difference from Embodiment 1 and Embodiment 2 is that the mobile terminal 2 is provided with a database configuration unit 27 and a feature matching unit 25. In the case of a wireless network or in the absence of a network, first download the area data in the data configuration unit of the server to the storage unit of the mobile terminal under the environment of the network, as the data configuration unit of the mobile terminal; 2 The small-scale database is downloaded by the database configuration unit 27, and the mobile terminal 2 can directly complete the steps of feature matching and display position information display through the feature matching unit 25. The mobile terminal 2 can collect the image by the mobile terminal 2 through the downloaded offline data package. The image data acquired by the unit 23 is processed into feature description...

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Abstract

The invention provides a geographic positioning system and method based on image recognition cloud service; according to the method, a query area is delimited in a geographic information database by combining initial positioning with the information of an obtained instant scene image, and a retrieval database of the query area is established, so that a retrieval scope is narrowed, the retrieval database is smaller, the problem that the search speed is slow due to a huge search data volume can be solved, and the image retrieval efficiency and the image matching speed are effectively improved. By use of a computer vision image matching technology, geographic positioning can be accurately realized; by use of a location information measurement unit of a mobile terminal, a scene search range isnarrowed, the validity and the real-time performance of the geographic location information positioning can be greatly improved, and the system and method are popularized and applied in modern smartmobile terminals and wireless communication technology, and can be effectively implemented and popularized.

Description

technical field [0001] The invention relates to a positioning technology of a mobile device, in particular to a geographic positioning system and method based on an image recognition cloud service. Background technique [0002] GPS, as a new modern spatial positioning method, has gradually replaced conventional optical and electronic instruments in more and more fields. Since the 1980s, especially since the 1990s, the combination of GPS satellite positioning and navigation technology and modern communication technology has caused revolutionary changes in space positioning technology. However, since GPS cannot be used for indoor positioning, and the positioning accuracy provided by the general civilian GPS mobile terminal system is about 10 meters, within the scope of GPS calibration, further accurate positioning; or explore new spatial positioning methods to improve positioning accuracy is very necessary. Chinese patent document (Application No. 200480031940.1) relates to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00
CPCG01C21/00
Inventor 樊晓东唐文平
Owner 樊晓东
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