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A method and device for locating and identifying buildings based on an intelligent terminal

An intelligent terminal, positioning recognition technology, applied in the field of positioning, can solve the problems of limited number of pictures in the picture database and large positioning errors, and achieve the effect of low delay and high positioning accuracy

Active Publication Date: 2017-11-03
WUXI TSINGHUA NAT LAB FOR INFORMATIONSCI & TECH INTERNET OF THINGS TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another method is to use a pre-deployed image database marked with GPS locations. When the user takes a photo of the target building, the image is searched and matched in the image database, and the GPS tag of the closest image is used as the target. The GPS position of the building; but the limitation of this method is that the number of pictures in the picture database is limited, and once the matching is wrong, the positioning error will be very large

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  • A method and device for locating and identifying buildings based on an intelligent terminal
  • A method and device for locating and identifying buildings based on an intelligent terminal
  • A method and device for locating and identifying buildings based on an intelligent terminal

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Embodiment Construction

[0077] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0078] combine figure 1 A first embodiment of the present invention will be described.

[0079] figure 1 It is a flow chart of a method for locating and identifying buildings based on smart terminals according to the first embodiment of the present invention, and is described in detail as follows:

[0080] Step S101, the smart terminal takes a photo of the target building, and extracts the top profile of the target building in the photo.

[0081] In the first emb...

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Abstract

The invention discloses a method and device for locating and identifying buildings based on an intelligent terminal. The method includes: the smart terminal takes a photo of the target building, extracts the top profile of the target building in the photo; obtains a map corresponding to the location of the shooting point of the photo, and uses the building in the map as a candidate building; Determine the building that best matches the top profile of the target building, and use the location information of the building to locate and identify the target building. Through the technical solution of the present invention, based on a single photo of the target building, the positioning and identification of the target building can be quickly realized, the time delay is low, no need to rely on a pre-deployed database, and the identification accuracy is high.

Description

technical field [0001] The invention relates to the field of positioning technology, in particular to a method and device for locating and identifying buildings based on an intelligent terminal. Background technique [0002] In daily life, mobile smart terminal users may be interested in a target building within their line of sight but far away, and want to know what the target building is, how to get to the target building, and what are the The business, restaurant or business is within the target building. For example, when a mobile smart terminal user travels in New York City, he can easily recognize some famous landmark buildings, such as the Empire State Building and the Freedom Tower in New York. However, he also wanted to know about other lesser-known buildings within his sight. These buildings may be far away from the user, and it is very troublesome to walk over to confirm those buildings. When seeking help from local residents, there may also be difficulties in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G01C21/00
CPCG01C11/06G01C21/00G06V20/176
Inventor 熊曦杨铮刘云浩孙家广
Owner WUXI TSINGHUA NAT LAB FOR INFORMATIONSCI & TECH INTERNET OF THINGS TECH CENT