Method for using handheld device to position plane area

Abstract

The invention discloses a method of using a handheld device to position a plane area. The method comprises the following steps: obtaining corresponding panoramic view of a plane according to a real scene; erecting a plane coordinate system in the panoramic view of the plane; obtaining features of the panoramic view and corresponding coordinates under the plane coordinate system in the the panoramic view of the plane and erecting an index according to the features of the panoramic view; using the handheld device to collect images of a target area and uploading to a server; obtaining features of the imaged of the target area in the target area through the server, matching the features of the images of the target area with the features of the panoramic view, and erecting an affine transformation matrix H used for the coordinate transformation according to the matching relation; mapping the coordinates of the images of the target area to the panoramic view of the plane according to the affine transformation matrix by the server so as to achieve the positioning of the images of the target area in the real scene; and then passing back the corresponding positioning information to the handheld device. The method of using the handheld device to position the plane area is convenient and fast, real-time, efficient and accurate.

Description

technical field [0001] The invention relates to wireless positioning and image matching technology on a hand-held device, in particular to a planar area positioning method using a hand-held device. Background technique [0002] In the information age, people's demand for personalized, intelligent and precise positioning continues to increase. At the same time, the hardware of handheld devices has been greatly developed. According to the statistics of Flurry, an American mobile communication market analysis company, China has become the second largest mobile phone application market in the world. Chinese mobile phone users have reached 952 million, of which the smartphone market has reached 25.0%. [0003] With the development of handheld device hardware and the popularization of wireless network environments, the positioning technology on handheld devices has made great progress and development. How to naturally and efficiently perform personalized, intelligent and accurate...

AI Technical Summary

Problems solved by technology

[0017] The advantages of two-dimensional code positioning are simple principle, low cost and easy to popularize. The disadvantage is that the recognition distance is short, and not all places are suitable for pasting two-dimensional codes, and the scope of application is limited.

[0018] To sum up, the GPS method is only suitable for outdoor use and has low positioning accuracy. The AGPS and base station method is limited by the density and number of base stations and is mainly used outdoors. RFID positioning is not accurate enough and the scalability is not high. Two-dimensional code positioning Since pasting the two-dimensional code will destroy the two-dimensional plane itself and the interaction method is not direct and natural enough, none of the above positioning methods can well realize the positioning on the handheld device for the plane area.

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